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Refactor Attention (#1840)
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commit
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@ -1,5 +1,5 @@
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"""Multi-head attention."""
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"""Multi-head attention."""
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from typing import Any, Dict, List, Optional
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from typing import List, Optional
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import torch
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import torch
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import torch.nn as nn
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import torch.nn as nn
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@ -10,7 +10,6 @@ from xformers.ops.fmha.attn_bias import (BlockDiagonalCausalMask,
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from vllm._C import ops
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from vllm._C import ops
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from vllm._C import cache_ops
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from vllm._C import cache_ops
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from vllm.model_executor.input_metadata import InputMetadata
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from vllm.model_executor.input_metadata import InputMetadata
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from vllm.model_executor.layers.rotary_embedding import get_rope
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_SUPPORTED_HEAD_SIZES = [64, 80, 96, 112, 128, 256]
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_SUPPORTED_HEAD_SIZES = [64, 80, 96, 112, 128, 256]
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# Should be the same as PARTITION_SIZE in `paged_attention_v2_launcher`.
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# Should be the same as PARTITION_SIZE in `paged_attention_v2_launcher`.
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@ -18,37 +17,39 @@ _PARTITION_SIZE = 512
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class PagedAttention(nn.Module):
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class PagedAttention(nn.Module):
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"""GPT-style multi-head PagedAttention.
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"""MHA/MQA/GQA layer with PagedAttention.
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This class takes query, key, and value tensors as input. The input tensors
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This class takes query, key, and value tensors as input. The input tensors
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can either contain prompt tokens or generation tokens, in addition to
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can either contain prompt tokens or generation tokens.
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paddings.
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The class does the following:
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The class does the following:
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1. Perform multi_query_kv_attention for the prompts. This operation does
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not use the KV cache.
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1. Wait for the cache operations (e.g., swap, copy) to finish. The cache
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2. Wait for the cache operations (e.g., swap, copy) to finish. The cache
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operations are issued by the cache engine before executing the forward
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operations are issued by the cache engine before executing the forward
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pass of the model, and they are executed asynchronously.
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pass of the model, and they are executed asynchronously.
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3. Reshape and store the input key and value tensors in the KV cache.
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2. Reshape and store the input key and value tensors in the KV cache.
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4. Perform single_query_cached_kv_attention for the generation tokens.
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3. Perform (multi-head/multi-query/grouped-query) attention using either
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This operation reads the previous key and value tensors from the KV
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xformers or the PagedAttention custom op.
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cache.
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4. Return the output tensor.
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5. Return the output tensor.
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"""
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"""
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def __init__(self,
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def __init__(
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num_heads: int,
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self,
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head_size: int,
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num_heads: int,
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scale: float,
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head_size: int,
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num_kv_heads: Optional[int] = None,
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scale: float,
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sliding_window: Optional[int] = None) -> None:
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num_kv_heads: Optional[int] = None,
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alibi_slopes: Optional[List[float]] = None,
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sliding_window: Optional[int] = None,
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) -> None:
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super().__init__()
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super().__init__()
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self.num_heads = num_heads
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self.num_heads = num_heads
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self.head_size = head_size
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self.head_size = head_size
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self.scale = float(scale)
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self.scale = float(scale)
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self.num_kv_heads = num_heads if num_kv_heads is None else num_kv_heads
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self.num_kv_heads = num_heads if num_kv_heads is None else num_kv_heads
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self.sliding_window = sliding_window
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self.sliding_window = sliding_window
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if alibi_slopes is not None:
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alibi_slopes = torch.tensor(alibi_slopes, dtype=torch.float32)
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self.register_buffer("alibi_slopes", alibi_slopes, persistent=False)
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assert self.num_heads % self.num_kv_heads == 0
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assert self.num_heads % self.num_kv_heads == 0
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self.num_queries_per_kv = self.num_heads // self.num_kv_heads
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self.num_queries_per_kv = self.num_heads // self.num_kv_heads
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@ -60,153 +61,6 @@ class PagedAttention(nn.Module):
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raise ValueError(f"head_size ({self.head_size}) is not supported. "
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raise ValueError(f"head_size ({self.head_size}) is not supported. "
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f"Supported head sizes: {_SUPPORTED_HEAD_SIZES}.")
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f"Supported head sizes: {_SUPPORTED_HEAD_SIZES}.")
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def set_attn_bias(
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self,
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input_metadata: InputMetadata,
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dtype: torch.dtype,
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) -> None:
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del dtype # Unused.
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if input_metadata.attn_bias is not None:
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# Already set by a previous layer.
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return
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prompt_lens = [input_metadata.max_prompt_len
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] * input_metadata.num_prompts
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attn_bias = BlockDiagonalCausalMask.from_seqlens(prompt_lens)
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if self.sliding_window is not None:
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attn_bias = attn_bias.make_local_attention(self.sliding_window)
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input_metadata.attn_bias = attn_bias
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def multi_query_kv_attention(
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self,
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output: torch.Tensor,
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query: torch.Tensor,
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key: torch.Tensor,
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value: torch.Tensor,
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input_metadata: InputMetadata,
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) -> torch.Tensor:
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"""Normal attention for the prompt tokens.
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Args:
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output: shape = [num_prompt_tokens, num_heads, head_size]
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query: shape = [num_prompt_tokens, num_heads, head_size]
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key: shape = [num_prompt_tokens, num_kv_heads, head_size]
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value: shape = [num_prompt_tokens, num_kv_heads, head_size]
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input_metadata: metadata for paged attention.
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"""
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if self.num_kv_heads != self.num_heads:
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# Project the key and value tensors to the desired number of heads.
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query = query.view(query.shape[0], self.num_kv_heads,
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self.num_queries_per_kv, query.shape[-1])
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key = key[:, :,
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None, :].expand(key.shape[0], self.num_kv_heads,
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self.num_queries_per_kv, key.shape[-1])
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value = value[:, :,
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None, :].expand(value.shape[0], self.num_kv_heads,
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self.num_queries_per_kv,
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value.shape[-1])
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# TODO(woosuk): The unsqueeze op may incur some CPU overhead. Optimize.
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out = xops.memory_efficient_attention_forward(
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query.unsqueeze(0),
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key.unsqueeze(0),
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value.unsqueeze(0),
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attn_bias=input_metadata.attn_bias,
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p=0.0,
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scale=self.scale,
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)
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# TODO(woosuk): Unnecessary copy. Optimize.
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output.copy_(out.view_as(output))
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return output
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def get_alibi_slopes(self) -> Optional[torch.Tensor]:
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"""Returns the slopes for the alibi attention bias.
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Returns:
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slopes: shape = [num_heads]
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"""
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return None
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def single_query_cached_kv_attention(
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self,
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output: torch.Tensor,
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query: torch.Tensor,
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key_cache: torch.Tensor,
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value_cache: torch.Tensor,
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input_metadata: InputMetadata,
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alibi_slopes: Optional[torch.Tensor],
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) -> None:
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"""PagedAttention for the generation tokens.
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Args:
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output: shape = [num_generation_tokens, num_heads, head_size]
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query: shape = [num_generation_tokens, num_heads, head_size]
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key_cache: shape = [num_blocks, num_kv_heads, head_size/x,
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block_size, x]
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value_cache: shape = [num_blocks, num_kv_heads, head_size,
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block_size]
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input_metadata: metadata for paged attention.
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alibi_slopes: shape = [num_heads]
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"""
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block_size = value_cache.shape[3]
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num_seqs, num_heads, head_size = query.shape
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max_num_partitions = (
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(input_metadata.max_context_len + _PARTITION_SIZE - 1) //
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_PARTITION_SIZE)
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# NOTE(woosuk): We use a simple heuristic to decide whether to use
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# PagedAttention V1 or V2. If the number of partitions is 1, we use
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# V1 to avoid the overhead of reduction. Also, if the number of
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# sequences or heads is large, we use V1 since there is enough work
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# to parallelize.
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# TODO(woosuk): Tune this heuristic.
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# For context len > 8192, use V2 kernel to avoid shared memory shortage.
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use_v1 = input_metadata.max_context_len <= 8192 and (
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max_num_partitions == 1 or num_seqs * num_heads > 512)
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if use_v1:
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# Run PagedAttention V1.
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ops.paged_attention_v1(
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output,
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query,
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key_cache,
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value_cache,
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self.head_mapping,
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self.scale,
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input_metadata.block_tables,
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input_metadata.context_lens,
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block_size,
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input_metadata.max_context_len,
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alibi_slopes,
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)
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else:
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# Run PagedAttention V2.
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assert _PARTITION_SIZE % block_size == 0
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tmp_output = torch.empty(
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size=(num_seqs, num_heads, max_num_partitions, head_size),
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dtype=output.dtype,
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device=output.device,
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)
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exp_sums = torch.empty(
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size=(num_seqs, num_heads, max_num_partitions),
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dtype=torch.float32,
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device=output.device,
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)
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max_logits = torch.empty_like(exp_sums)
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ops.paged_attention_v2(
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output,
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exp_sums,
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max_logits,
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tmp_output,
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query,
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key_cache,
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value_cache,
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self.head_mapping,
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self.scale,
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input_metadata.block_tables,
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input_metadata.context_lens,
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block_size,
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input_metadata.max_context_len,
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alibi_slopes,
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)
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def forward(
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def forward(
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self,
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self,
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query: torch.Tensor,
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query: torch.Tensor,
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@ -219,9 +73,6 @@ class PagedAttention(nn.Module):
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) -> torch.Tensor:
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) -> torch.Tensor:
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"""PagedAttention forward pass.
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"""PagedAttention forward pass.
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NOTE: The query, key, and value tensors must be sliced from a qkv
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tensor of shape [batch_size, seq_len, 3 * num_heads * head_size].
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Args:
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Args:
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query: shape = [batch_size, seq_len, num_heads * head_size]
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query: shape = [batch_size, seq_len, num_heads * head_size]
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key: shape = [batch_size, seq_len, num_kv_heads * head_size]
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key: shape = [batch_size, seq_len, num_kv_heads * head_size]
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@ -230,46 +81,28 @@ class PagedAttention(nn.Module):
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block_size, x]
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block_size, x]
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value_cache: shape = [num_blocks, num_kv_heads, head_size,
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value_cache: shape = [num_blocks, num_kv_heads, head_size,
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block_size]
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block_size]
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input_metadata: metadata for paged attention.
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input_metadata: metadata for the inputs.
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cache_event: event to wait for the cache operations to finish.
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cache_event: event to wait for the cache operations to finish.
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Returns:
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Returns:
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shape = [batch_size, seq_len, num_heads * head_size]
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shape = [batch_size, seq_len, num_heads * head_size]
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"""
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"""
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batch_size, seq_len, _ = query.shape
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batch_size, seq_len, hidden_size = query.shape
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# Reshape the query, key, and value tensors.
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# Reshape the query, key, and value tensors.
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query = query.view(-1, self.num_heads, self.head_size)
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query = query.view(-1, self.num_heads, self.head_size)
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key = key.view(-1, self.num_kv_heads, self.head_size)
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key = key.view(-1, self.num_kv_heads, self.head_size)
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value = value.view(-1, self.num_kv_heads, self.head_size)
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value = value.view(-1, self.num_kv_heads, self.head_size)
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slot_mapping = input_metadata.slot_mapping.flatten()
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# Pre-allocate the output tensor.
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output = torch.empty_like(query)
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# Compute the attention op for prompts.
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num_prompt_tokens = input_metadata.num_prompt_tokens
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if num_prompt_tokens > 0:
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# Prompt run.
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assert input_metadata.num_generation_tokens == 0
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self.set_attn_bias(input_metadata, dtype=query.dtype)
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self.multi_query_kv_attention(
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output,
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query,
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key,
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value,
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input_metadata,
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)
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# Wait until the cache op is done.
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if cache_event is not None:
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if cache_event is not None:
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cache_event.wait()
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cache_event.wait()
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# Reshape the keys and values and store them in the cache.
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# Reshape the keys and values and store them in the cache.
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# When key_cache and value_cache are not provided, the new key
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# If key_cache and value_cache are not provided, the new key and value
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# and value vectors will not be cached.
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# vectors will not be cached. This happens during the initial memory
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# profiling run.
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if key_cache is not None and value_cache is not None:
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if key_cache is not None and value_cache is not None:
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key_to_cache = key
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key_to_cache = key
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value_to_cache = value
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value_to_cache = value
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slot_mapping = input_metadata.slot_mapping.view(-1)
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if input_metadata.to_cache is not None:
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if input_metadata.to_cache is not None:
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key_to_cache = key_to_cache[input_metadata.to_cache]
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key_to_cache = key_to_cache[input_metadata.to_cache]
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value_to_cache = value_to_cache[input_metadata.to_cache]
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value_to_cache = value_to_cache[input_metadata.to_cache]
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@ -283,178 +116,175 @@ class PagedAttention(nn.Module):
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slot_mapping,
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slot_mapping,
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)
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)
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if input_metadata.num_generation_tokens > 0:
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is_prompt = len(input_metadata.prompt_lens) > 0
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if is_prompt:
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# Prompt run.
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if self.num_kv_heads != self.num_heads:
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# As of Nov 2023, xformers only supports MHA. For MQA/GQA,
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# project the key and value tensors to the desired number of
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# heads.
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# TODO(woosuk): Use MQA/GQA kernels for higher performance.
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query = query.view(query.shape[0], self.num_kv_heads,
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self.num_queries_per_kv, query.shape[-1])
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key = key[:, :,
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None, :].expand(key.shape[0], self.num_kv_heads,
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self.num_queries_per_kv,
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key.shape[-1])
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value = value[:, :, None, :].expand(value.shape[0],
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self.num_kv_heads,
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self.num_queries_per_kv,
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value.shape[-1])
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# Set attention bias if not provided. This typically happens at the
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# very attention layer of every iteration.
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# FIXME(woosuk): This is a hack.
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if input_metadata.attn_bias is None:
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if self.alibi_slopes is None:
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attn_bias = BlockDiagonalCausalMask.from_seqlens(
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[seq_len] * batch_size)
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if self.sliding_window is not None:
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attn_bias = attn_bias.make_local_attention(
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self.sliding_window)
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input_metadata.attn_bias = attn_bias
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else:
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input_metadata.attn_bias = _make_alibi_bias(
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self.alibi_slopes, batch_size, seq_len, query.dtype)
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# TODO(woosuk): Too many view operations. Let's try to reduce them
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# in the future for code readability.
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if self.alibi_slopes is None:
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query = query.unsqueeze(0)
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key = key.unsqueeze(0)
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value = value.unsqueeze(0)
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else:
|
||||||
|
query = query.unflatten(0, (batch_size, seq_len))
|
||||||
|
key = key.unflatten(0, (batch_size, seq_len))
|
||||||
|
value = value.unflatten(0, (batch_size, seq_len))
|
||||||
|
|
||||||
|
out = xops.memory_efficient_attention_forward(
|
||||||
|
query,
|
||||||
|
key,
|
||||||
|
value,
|
||||||
|
attn_bias=input_metadata.attn_bias,
|
||||||
|
p=0.0,
|
||||||
|
scale=self.scale,
|
||||||
|
)
|
||||||
|
output = out.view_as(query)
|
||||||
|
else:
|
||||||
# Decoding run.
|
# Decoding run.
|
||||||
assert input_metadata.num_prompt_tokens == 0
|
output = _paged_attention(
|
||||||
assert key_cache is not None and value_cache is not None, (
|
query,
|
||||||
"key_cache and value_cache must be provided when "
|
key_cache,
|
||||||
"generating tokens.")
|
value_cache,
|
||||||
# Compute the attention op for generation tokens.
|
input_metadata,
|
||||||
self.single_query_cached_kv_attention(output, query, key_cache,
|
self.head_mapping,
|
||||||
value_cache, input_metadata,
|
self.scale,
|
||||||
self.get_alibi_slopes())
|
self.alibi_slopes,
|
||||||
|
)
|
||||||
|
|
||||||
# Reshape the output tensor.
|
# Reshape the output tensor.
|
||||||
# NOTE(woosuk): The output tensor may include paddings.
|
return output.view(batch_size, seq_len, hidden_size)
|
||||||
return output.view(batch_size, seq_len,
|
|
||||||
self.num_heads * self.head_size)
|
|
||||||
|
|
||||||
|
|
||||||
class PagedAttentionWithRoPE(PagedAttention):
|
def _make_alibi_bias(
|
||||||
"""PagedAttention with rotary positional embedding."""
|
alibi_slopes: torch.Tensor,
|
||||||
|
batch_size: int,
|
||||||
|
seq_len: int,
|
||||||
|
dtype: torch.dtype,
|
||||||
|
) -> LowerTriangularMaskWithTensorBias:
|
||||||
|
bias = torch.arange(seq_len, dtype=dtype)
|
||||||
|
# NOTE(zhuohan): HF uses
|
||||||
|
# `bias = bias[None, :].repeat(prompt_len, 1)`
|
||||||
|
# here. We find that both biases give the same results, but
|
||||||
|
# the bias below more accurately follows the original ALiBi
|
||||||
|
# paper.
|
||||||
|
bias = bias[None, :] - bias[:, None]
|
||||||
|
bias = bias.to(alibi_slopes.device)
|
||||||
|
|
||||||
def __init__(
|
# When using custom attention bias, xformers requires the bias to
|
||||||
self,
|
# be sliced from a tensor whose length is a multiple of 8.
|
||||||
num_heads: int,
|
padded_len = (seq_len + 7) // 8 * 8
|
||||||
head_size: int,
|
bias = torch.empty(
|
||||||
scale: float,
|
batch_size,
|
||||||
rotary_dim: int,
|
alibi_slopes.shape[0],
|
||||||
max_position: int = 8192,
|
seq_len,
|
||||||
base: int = 10000,
|
padded_len,
|
||||||
num_kv_heads: Optional[int] = None,
|
device=alibi_slopes.device,
|
||||||
is_neox_style: bool = True,
|
dtype=dtype,
|
||||||
rope_scaling: Optional[Dict[str, Any]] = None,
|
)[:, :, :, :seq_len].copy_(bias)
|
||||||
sliding_window: Optional[int] = None,
|
bias.mul_(alibi_slopes[:, None, None])
|
||||||
) -> None:
|
attn_bias = LowerTriangularMaskWithTensorBias(bias)
|
||||||
super().__init__(num_heads,
|
return attn_bias
|
||||||
head_size,
|
|
||||||
scale,
|
|
||||||
num_kv_heads,
|
|
||||||
sliding_window=sliding_window)
|
|
||||||
self.rotary_emb = get_rope(head_size, rotary_dim, max_position, base,
|
|
||||||
is_neox_style, rope_scaling)
|
|
||||||
|
|
||||||
def forward(
|
|
||||||
self,
|
|
||||||
positions: torch.Tensor,
|
|
||||||
query: torch.Tensor,
|
|
||||||
key: torch.Tensor,
|
|
||||||
value: torch.Tensor,
|
|
||||||
key_cache: torch.Tensor,
|
|
||||||
value_cache: torch.Tensor,
|
|
||||||
input_metadata: InputMetadata,
|
|
||||||
cache_event: Optional[torch.cuda.Event],
|
|
||||||
) -> torch.Tensor:
|
|
||||||
""" PagedAttention forward pass with rotary embedding.
|
|
||||||
|
|
||||||
Args:
|
def _paged_attention(
|
||||||
positions: shape = [batch_size, seq_len]
|
query: torch.Tensor,
|
||||||
query: shape = [batch_size, seq_len, num_heads * head_size]
|
key_cache: torch.Tensor,
|
||||||
key: shape = [batch_size, seq_len, num_kv_heads * head_size]
|
value_cache: torch.Tensor,
|
||||||
value: shape = [batch_size, seq_len, num_kv_heads * head_size]
|
input_metadata: InputMetadata,
|
||||||
key_cache: shape = [num_blocks, num_kv_heads, head_size/x,
|
head_mapping: torch.Tensor,
|
||||||
block_size, x]
|
scale: float,
|
||||||
value_cache: shape = [num_blocks, num_kv_heads, head_size,
|
alibi_slopes: Optional[torch.Tensor],
|
||||||
block_size]
|
) -> torch.Tensor:
|
||||||
input_metadata: metadata for paged attention.
|
output = torch.empty_like(query)
|
||||||
cache_event: event to wait for the cache operations to finish.
|
|
||||||
|
|
||||||
Returns:
|
block_size = value_cache.shape[3]
|
||||||
shape = [batch_size, seq_len, num_heads * head_size]
|
num_seqs, num_heads, head_size = query.shape
|
||||||
"""
|
max_num_partitions = (
|
||||||
|
(input_metadata.max_context_len + _PARTITION_SIZE - 1) //
|
||||||
# Apply rotary embedding to the query and key before passing them
|
_PARTITION_SIZE)
|
||||||
# to the attention op.
|
# NOTE(woosuk): We use a simple heuristic to decide whether to use
|
||||||
query, key = self.rotary_emb(positions, query, key)
|
# PagedAttention V1 or V2. If the number of partitions is 1, we use
|
||||||
return super().forward(
|
# V1 to avoid the overhead of reduction. Also, if the number of
|
||||||
|
# sequences or heads is large, we use V1 since there is enough work
|
||||||
|
# to parallelize.
|
||||||
|
# TODO(woosuk): Tune this heuristic.
|
||||||
|
# For context len > 8192, use V2 kernel to avoid shared memory shortage.
|
||||||
|
use_v1 = input_metadata.max_context_len <= 8192 and (
|
||||||
|
max_num_partitions == 1 or num_seqs * num_heads > 512)
|
||||||
|
if use_v1:
|
||||||
|
# Run PagedAttention V1.
|
||||||
|
ops.paged_attention_v1(
|
||||||
|
output,
|
||||||
query,
|
query,
|
||||||
key,
|
|
||||||
value,
|
|
||||||
key_cache,
|
key_cache,
|
||||||
value_cache,
|
value_cache,
|
||||||
input_metadata,
|
head_mapping,
|
||||||
cache_event,
|
scale,
|
||||||
|
input_metadata.block_tables,
|
||||||
|
input_metadata.context_lens,
|
||||||
|
block_size,
|
||||||
|
input_metadata.max_context_len,
|
||||||
|
alibi_slopes,
|
||||||
)
|
)
|
||||||
|
else:
|
||||||
|
# Run PagedAttention V2.
|
||||||
class PagedAttentionWithALiBi(PagedAttention):
|
assert _PARTITION_SIZE % block_size == 0
|
||||||
"""PagedAttention with ALiBi attention bias."""
|
tmp_output = torch.empty(
|
||||||
|
size=(num_seqs, num_heads, max_num_partitions, head_size),
|
||||||
def __init__(self,
|
dtype=output.dtype,
|
||||||
num_heads: int,
|
device=output.device,
|
||||||
head_size: int,
|
|
||||||
scale: float,
|
|
||||||
slopes: List[float],
|
|
||||||
num_kv_heads: Optional[int] = None) -> None:
|
|
||||||
super().__init__(num_heads, head_size, scale, num_kv_heads)
|
|
||||||
assert len(slopes) == num_heads
|
|
||||||
|
|
||||||
slopes = torch.tensor(slopes, dtype=torch.float32)
|
|
||||||
self.register_buffer("alibi_slopes", slopes, persistent=False)
|
|
||||||
|
|
||||||
def set_attn_bias(self, input_metadata: InputMetadata,
|
|
||||||
dtype: torch.dtype) -> None:
|
|
||||||
if input_metadata.attn_bias is not None:
|
|
||||||
# Already set by a previous layer.
|
|
||||||
return
|
|
||||||
# Generates ALiBi mask based on the max prompt length.
|
|
||||||
max_prompt_len = input_metadata.max_prompt_len
|
|
||||||
bias = torch.arange(max_prompt_len, dtype=dtype)
|
|
||||||
# NOTE(zhuohan): HF uses
|
|
||||||
# `bias = bias[None, :].repeat(prompt_len, 1)`
|
|
||||||
# here. We find that both biases give the same results, but
|
|
||||||
# the bias below more accurately follows the original ALiBi
|
|
||||||
# paper.
|
|
||||||
bias = bias[None, :] - bias[:, None]
|
|
||||||
bias = bias.to(self.alibi_slopes.device)
|
|
||||||
|
|
||||||
# When using custom attention bias, xformers requires the bias to
|
|
||||||
# be sliced from a tensor whose length is a multiple of 8.
|
|
||||||
padded_len = (max_prompt_len + 7) // 8 * 8
|
|
||||||
bias = torch.empty(
|
|
||||||
input_metadata.num_prompts,
|
|
||||||
self.num_heads,
|
|
||||||
max_prompt_len,
|
|
||||||
padded_len,
|
|
||||||
device=self.alibi_slopes.device,
|
|
||||||
dtype=dtype,
|
|
||||||
)[:, :, :, :max_prompt_len].copy_(bias)
|
|
||||||
bias.mul_(self.alibi_slopes[:, None, None])
|
|
||||||
attn_bias = LowerTriangularMaskWithTensorBias(bias)
|
|
||||||
input_metadata.attn_bias = attn_bias
|
|
||||||
|
|
||||||
def multi_query_kv_attention(
|
|
||||||
self,
|
|
||||||
output: torch.Tensor,
|
|
||||||
query: torch.Tensor,
|
|
||||||
key: torch.Tensor,
|
|
||||||
value: torch.Tensor,
|
|
||||||
input_metadata: InputMetadata,
|
|
||||||
) -> torch.Tensor:
|
|
||||||
"""Attention with ALiBi bias for the prompt tokens.
|
|
||||||
|
|
||||||
Args:
|
|
||||||
output: shape = [num_prompt_tokens, num_heads, head_size]
|
|
||||||
query: shape = [num_prompt_tokens, num_heads, head_size]
|
|
||||||
key: shape = [num_prompt_tokens, num_kv_heads, head_size]
|
|
||||||
value: shape = [num_prompt_tokens, num_kv_heads, head_size]
|
|
||||||
input_metadata: metadata for paged attention.
|
|
||||||
"""
|
|
||||||
if self.num_kv_heads != self.num_heads:
|
|
||||||
# Project the key and value tensors to the desired number of heads.
|
|
||||||
query = query.view(query.shape[0], self.num_kv_heads,
|
|
||||||
self.num_queries_per_kv, query.shape[-1])
|
|
||||||
key = key[:, :,
|
|
||||||
None, :].expand(key.shape[0], self.num_kv_heads,
|
|
||||||
self.num_queries_per_kv, key.shape[-1])
|
|
||||||
value = value[:, :,
|
|
||||||
None, :].expand(value.shape[0], self.num_kv_heads,
|
|
||||||
self.num_queries_per_kv,
|
|
||||||
value.shape[-1])
|
|
||||||
batch_size = input_metadata.num_prompts
|
|
||||||
seq_len = input_metadata.max_prompt_len
|
|
||||||
|
|
||||||
out = xops.memory_efficient_attention_forward(
|
|
||||||
query.view(batch_size, seq_len, self.num_heads, self.head_size),
|
|
||||||
key.view(batch_size, seq_len, self.num_heads, self.head_size),
|
|
||||||
value.view(batch_size, seq_len, self.num_heads, self.head_size),
|
|
||||||
attn_bias=input_metadata.attn_bias,
|
|
||||||
p=0.0,
|
|
||||||
scale=self.scale,
|
|
||||||
)
|
)
|
||||||
# TODO(woosuk): Unnecessary copy. Optimize.
|
exp_sums = torch.empty(
|
||||||
output.copy_(out.view_as(output))
|
size=(num_seqs, num_heads, max_num_partitions),
|
||||||
return output
|
dtype=torch.float32,
|
||||||
|
device=output.device,
|
||||||
def get_alibi_slopes(self) -> Optional[torch.Tensor]:
|
)
|
||||||
return self.alibi_slopes
|
max_logits = torch.empty_like(exp_sums)
|
||||||
|
ops.paged_attention_v2(
|
||||||
|
output,
|
||||||
|
exp_sums,
|
||||||
|
max_logits,
|
||||||
|
tmp_output,
|
||||||
|
query,
|
||||||
|
key_cache,
|
||||||
|
value_cache,
|
||||||
|
head_mapping,
|
||||||
|
scale,
|
||||||
|
input_metadata.block_tables,
|
||||||
|
input_metadata.context_lens,
|
||||||
|
block_size,
|
||||||
|
input_metadata.max_context_len,
|
||||||
|
alibi_slopes,
|
||||||
|
)
|
||||||
|
return output
|
||||||
|
|||||||
@ -277,8 +277,8 @@ def get_rope(
|
|||||||
rotary_dim: int,
|
rotary_dim: int,
|
||||||
max_position: int,
|
max_position: int,
|
||||||
base: int,
|
base: int,
|
||||||
is_neox_style: bool,
|
is_neox_style: bool = True,
|
||||||
rope_scaling: Optional[Dict[str, Any]],
|
rope_scaling: Optional[Dict[str, Any]] = None,
|
||||||
) -> RotaryEmbedding:
|
) -> RotaryEmbedding:
|
||||||
if rope_scaling is None:
|
if rope_scaling is None:
|
||||||
rotary_emb = RotaryEmbedding(head_size, rotary_dim, max_position, base,
|
rotary_emb = RotaryEmbedding(head_size, rotary_dim, max_position, base,
|
||||||
|
|||||||
@ -28,11 +28,12 @@ from torch import nn
|
|||||||
|
|
||||||
from vllm.model_executor.input_metadata import InputMetadata
|
from vllm.model_executor.input_metadata import InputMetadata
|
||||||
from vllm.model_executor.layers.activation import SiluAndMul
|
from vllm.model_executor.layers.activation import SiluAndMul
|
||||||
from vllm.model_executor.layers.attention import PagedAttentionWithRoPE
|
from vllm.model_executor.layers.attention import PagedAttention
|
||||||
from vllm.model_executor.layers.linear import (LinearMethodBase,
|
from vllm.model_executor.layers.linear import (LinearMethodBase,
|
||||||
MergedColumnParallelLinear,
|
MergedColumnParallelLinear,
|
||||||
QKVParallelLinear,
|
QKVParallelLinear,
|
||||||
RowParallelLinear)
|
RowParallelLinear)
|
||||||
|
from vllm.model_executor.layers.rotary_embedding import get_rope
|
||||||
from vllm.model_executor.layers.sampler import Sampler
|
from vllm.model_executor.layers.sampler import Sampler
|
||||||
from vllm.model_executor.layers.vocab_parallel_embedding import (
|
from vllm.model_executor.layers.vocab_parallel_embedding import (
|
||||||
VocabParallelEmbedding, ParallelLMHead)
|
VocabParallelEmbedding, ParallelLMHead)
|
||||||
@ -138,15 +139,17 @@ class AquilaAttention(nn.Module):
|
|||||||
bias=False,
|
bias=False,
|
||||||
linear_method=linear_method,
|
linear_method=linear_method,
|
||||||
)
|
)
|
||||||
self.attn = PagedAttentionWithRoPE(
|
self.rotary_emb = get_rope(
|
||||||
self.num_heads,
|
|
||||||
self.head_dim,
|
self.head_dim,
|
||||||
self.scaling,
|
|
||||||
base=self.rope_theta,
|
|
||||||
max_position=self.max_position_embeddings,
|
|
||||||
rotary_dim=self.head_dim,
|
rotary_dim=self.head_dim,
|
||||||
num_kv_heads=self.num_kv_heads,
|
max_position=self.max_position_embeddings,
|
||||||
rope_scaling=rope_scaling)
|
base=self.rope_theta,
|
||||||
|
rope_scaling=rope_scaling,
|
||||||
|
)
|
||||||
|
self.attn = PagedAttention(self.num_heads,
|
||||||
|
self.head_dim,
|
||||||
|
self.scaling,
|
||||||
|
num_kv_heads=self.num_kv_heads)
|
||||||
|
|
||||||
def forward(
|
def forward(
|
||||||
self,
|
self,
|
||||||
@ -158,9 +161,10 @@ class AquilaAttention(nn.Module):
|
|||||||
) -> torch.Tensor:
|
) -> torch.Tensor:
|
||||||
qkv, _ = self.qkv_proj(hidden_states)
|
qkv, _ = self.qkv_proj(hidden_states)
|
||||||
q, k, v = qkv.split([self.q_size, self.kv_size, self.kv_size], dim=-1)
|
q, k, v = qkv.split([self.q_size, self.kv_size, self.kv_size], dim=-1)
|
||||||
|
q, k = self.rotary_emb(positions, q, k)
|
||||||
k_cache, v_cache = kv_cache
|
k_cache, v_cache = kv_cache
|
||||||
attn_output = self.attn(positions, q, k, v, k_cache, v_cache,
|
attn_output = self.attn(q, k, v, k_cache, v_cache, input_metadata,
|
||||||
input_metadata, cache_event)
|
cache_event)
|
||||||
output, _ = self.o_proj(attn_output)
|
output, _ = self.o_proj(attn_output)
|
||||||
return output
|
return output
|
||||||
|
|
||||||
|
|||||||
@ -26,13 +26,13 @@ from torch import nn
|
|||||||
|
|
||||||
from vllm.model_executor.input_metadata import InputMetadata
|
from vllm.model_executor.input_metadata import InputMetadata
|
||||||
from vllm.model_executor.layers.activation import SiluAndMul
|
from vllm.model_executor.layers.activation import SiluAndMul
|
||||||
from vllm.model_executor.layers.attention import (PagedAttentionWithRoPE,
|
from vllm.model_executor.layers.attention import PagedAttention
|
||||||
PagedAttentionWithALiBi)
|
|
||||||
from vllm.model_executor.layers.layernorm import RMSNorm
|
from vllm.model_executor.layers.layernorm import RMSNorm
|
||||||
from vllm.model_executor.layers.linear import (LinearMethodBase,
|
from vllm.model_executor.layers.linear import (LinearMethodBase,
|
||||||
MergedColumnParallelLinear,
|
MergedColumnParallelLinear,
|
||||||
QKVParallelLinear,
|
QKVParallelLinear,
|
||||||
RowParallelLinear)
|
RowParallelLinear)
|
||||||
|
from vllm.model_executor.layers.rotary_embedding import get_rope
|
||||||
from vllm.model_executor.layers.sampler import Sampler
|
from vllm.model_executor.layers.sampler import Sampler
|
||||||
from vllm.model_executor.layers.vocab_parallel_embedding import (
|
from vllm.model_executor.layers.vocab_parallel_embedding import (
|
||||||
VocabParallelEmbedding, ParallelLMHead)
|
VocabParallelEmbedding, ParallelLMHead)
|
||||||
@ -150,17 +150,20 @@ class BaiChuanAttention(nn.Module):
|
|||||||
alibi_slopes = alibi_slopes[head_start:head_end].tolist()
|
alibi_slopes = alibi_slopes[head_start:head_end].tolist()
|
||||||
|
|
||||||
scaling = self.head_dim**-0.5
|
scaling = self.head_dim**-0.5
|
||||||
self.attn = PagedAttentionWithALiBi(self.num_heads, self.head_dim,
|
self.attn = PagedAttention(self.num_heads,
|
||||||
scaling, alibi_slopes)
|
self.head_dim,
|
||||||
|
scaling,
|
||||||
|
alibi_slopes=alibi_slopes)
|
||||||
else:
|
else:
|
||||||
self.scaling = self.head_dim**-0.5
|
self.rotary_emb = get_rope(
|
||||||
self.attn = PagedAttentionWithRoPE(
|
|
||||||
self.num_heads,
|
|
||||||
self.head_dim,
|
self.head_dim,
|
||||||
self.scaling,
|
|
||||||
rotary_dim=self.head_dim,
|
rotary_dim=self.head_dim,
|
||||||
|
max_position=self.max_position_embeddings,
|
||||||
base=self.rope_theta,
|
base=self.rope_theta,
|
||||||
max_position=self.max_position_embeddings)
|
)
|
||||||
|
self.scaling = self.head_dim**-0.5
|
||||||
|
self.attn = PagedAttention(self.num_heads, self.head_dim,
|
||||||
|
self.scaling)
|
||||||
|
|
||||||
def forward(
|
def forward(
|
||||||
self,
|
self,
|
||||||
@ -172,14 +175,11 @@ class BaiChuanAttention(nn.Module):
|
|||||||
) -> torch.Tensor:
|
) -> torch.Tensor:
|
||||||
qkv, _ = self.W_pack(hidden_states)
|
qkv, _ = self.W_pack(hidden_states)
|
||||||
q, k, v = qkv.chunk(chunks=3, dim=-1)
|
q, k, v = qkv.chunk(chunks=3, dim=-1)
|
||||||
|
if self.postion_embedding != "ALIBI":
|
||||||
|
q, k = self.rotary_emb(positions, q, k)
|
||||||
k_cache, v_cache = kv_cache
|
k_cache, v_cache = kv_cache
|
||||||
if self.postion_embedding == "ALIBI":
|
attn_output = self.attn(q, k, v, k_cache, v_cache, input_metadata,
|
||||||
attn_output = self.attn(q, k, v, k_cache, v_cache, input_metadata,
|
cache_event)
|
||||||
cache_event)
|
|
||||||
else:
|
|
||||||
attn_output = self.attn(positions, q, k, v, k_cache, v_cache,
|
|
||||||
input_metadata, cache_event)
|
|
||||||
|
|
||||||
output, _ = self.o_proj(attn_output)
|
output, _ = self.o_proj(attn_output)
|
||||||
return output
|
return output
|
||||||
|
|
||||||
|
|||||||
@ -25,7 +25,7 @@ from transformers import BloomConfig
|
|||||||
|
|
||||||
from vllm.model_executor.input_metadata import InputMetadata
|
from vllm.model_executor.input_metadata import InputMetadata
|
||||||
from vllm.model_executor.layers.activation import get_act_fn
|
from vllm.model_executor.layers.activation import get_act_fn
|
||||||
from vllm.model_executor.layers.attention import PagedAttentionWithALiBi
|
from vllm.model_executor.layers.attention import PagedAttention
|
||||||
from vllm.model_executor.layers.linear import (ColumnParallelLinear,
|
from vllm.model_executor.layers.linear import (ColumnParallelLinear,
|
||||||
LinearMethodBase,
|
LinearMethodBase,
|
||||||
QKVParallelLinear,
|
QKVParallelLinear,
|
||||||
@ -106,8 +106,10 @@ class BloomAttention(nn.Module):
|
|||||||
alibi_slopes = alibi_slopes[head_start:head_end].tolist()
|
alibi_slopes = alibi_slopes[head_start:head_end].tolist()
|
||||||
|
|
||||||
scaling = self.head_dim**-0.5
|
scaling = self.head_dim**-0.5
|
||||||
self.attn = PagedAttentionWithALiBi(self.num_heads, self.head_dim,
|
self.attn = PagedAttention(self.num_heads,
|
||||||
scaling, alibi_slopes)
|
self.head_dim,
|
||||||
|
scaling,
|
||||||
|
alibi_slopes=alibi_slopes)
|
||||||
|
|
||||||
def forward(
|
def forward(
|
||||||
self,
|
self,
|
||||||
|
|||||||
@ -10,12 +10,13 @@ from torch.nn import LayerNorm
|
|||||||
|
|
||||||
from vllm.model_executor.input_metadata import InputMetadata
|
from vllm.model_executor.input_metadata import InputMetadata
|
||||||
from vllm.model_executor.layers.activation import SiluAndMul
|
from vllm.model_executor.layers.activation import SiluAndMul
|
||||||
from vllm.model_executor.layers.attention import PagedAttentionWithRoPE
|
from vllm.model_executor.layers.attention import PagedAttention
|
||||||
from vllm.model_executor.layers.layernorm import RMSNorm
|
from vllm.model_executor.layers.layernorm import RMSNorm
|
||||||
from vllm.model_executor.layers.linear import (LinearMethodBase,
|
from vllm.model_executor.layers.linear import (LinearMethodBase,
|
||||||
MergedColumnParallelLinear,
|
MergedColumnParallelLinear,
|
||||||
QKVParallelLinear,
|
QKVParallelLinear,
|
||||||
RowParallelLinear)
|
RowParallelLinear)
|
||||||
|
from vllm.model_executor.layers.rotary_embedding import get_rope
|
||||||
from vllm.model_executor.layers.sampler import Sampler
|
from vllm.model_executor.layers.sampler import Sampler
|
||||||
from vllm.model_executor.layers.vocab_parallel_embedding import (
|
from vllm.model_executor.layers.vocab_parallel_embedding import (
|
||||||
VocabParallelEmbedding, ParallelLMHead)
|
VocabParallelEmbedding, ParallelLMHead)
|
||||||
@ -78,16 +79,19 @@ class GLMAttention(nn.Module):
|
|||||||
# https://huggingface.co/THUDM/chatglm3-6b-32k/blob/e210410255278dd9d74463cf396ba559c0ef801c/modeling_chatglm.py#L141
|
# https://huggingface.co/THUDM/chatglm3-6b-32k/blob/e210410255278dd9d74463cf396ba559c0ef801c/modeling_chatglm.py#L141
|
||||||
rope_ratio = getattr(config, "rope_ratio", 1.0)
|
rope_ratio = getattr(config, "rope_ratio", 1.0)
|
||||||
max_positions = getattr(config, "seq_length", 8192)
|
max_positions = getattr(config, "seq_length", 8192)
|
||||||
self.attn = PagedAttentionWithRoPE(
|
self.rotary_emb = get_rope(
|
||||||
self.num_heads,
|
|
||||||
self.head_dim,
|
self.head_dim,
|
||||||
self.scaling,
|
|
||||||
rotary_dim=self.head_dim // 2,
|
rotary_dim=self.head_dim // 2,
|
||||||
num_kv_heads=self.num_kv_heads,
|
|
||||||
max_position=max_positions,
|
max_position=max_positions,
|
||||||
base=10000 * rope_ratio,
|
base=10000 * rope_ratio,
|
||||||
is_neox_style=False,
|
is_neox_style=False,
|
||||||
)
|
)
|
||||||
|
self.attn = PagedAttention(
|
||||||
|
self.num_heads,
|
||||||
|
self.head_dim,
|
||||||
|
self.scaling,
|
||||||
|
num_kv_heads=self.num_kv_heads,
|
||||||
|
)
|
||||||
|
|
||||||
def forward(
|
def forward(
|
||||||
self,
|
self,
|
||||||
@ -99,10 +103,9 @@ class GLMAttention(nn.Module):
|
|||||||
) -> torch.Tensor:
|
) -> torch.Tensor:
|
||||||
qkv, _ = self.query_key_value(hidden_states)
|
qkv, _ = self.query_key_value(hidden_states)
|
||||||
q, k, v = qkv.split([self.q_size, self.kv_size, self.kv_size], dim=-1)
|
q, k, v = qkv.split([self.q_size, self.kv_size, self.kv_size], dim=-1)
|
||||||
|
q, k = self.rotary_emb(position_ids, q, k)
|
||||||
key_cache, value_cache = kv_cache
|
key_cache, value_cache = kv_cache
|
||||||
|
|
||||||
context_layer = self.attn(
|
context_layer = self.attn(
|
||||||
position_ids,
|
|
||||||
q,
|
q,
|
||||||
k,
|
k,
|
||||||
v,
|
v,
|
||||||
@ -111,9 +114,7 @@ class GLMAttention(nn.Module):
|
|||||||
input_metadata,
|
input_metadata,
|
||||||
cache_event,
|
cache_event,
|
||||||
)
|
)
|
||||||
|
|
||||||
attn_output, _ = self.dense(context_layer)
|
attn_output, _ = self.dense(context_layer)
|
||||||
|
|
||||||
return attn_output
|
return attn_output
|
||||||
|
|
||||||
|
|
||||||
|
|||||||
@ -28,13 +28,12 @@ from transformers import FalconConfig as HF_FalconConfig
|
|||||||
|
|
||||||
from vllm.model_executor.input_metadata import InputMetadata
|
from vllm.model_executor.input_metadata import InputMetadata
|
||||||
from vllm.model_executor.layers.activation import get_act_fn
|
from vllm.model_executor.layers.activation import get_act_fn
|
||||||
from vllm.model_executor.layers.attention import (PagedAttention,
|
from vllm.model_executor.layers.attention import PagedAttention
|
||||||
PagedAttentionWithALiBi,
|
|
||||||
PagedAttentionWithRoPE)
|
|
||||||
from vllm.model_executor.layers.linear import (ColumnParallelLinear,
|
from vllm.model_executor.layers.linear import (ColumnParallelLinear,
|
||||||
LinearMethodBase,
|
LinearMethodBase,
|
||||||
QKVParallelLinear,
|
QKVParallelLinear,
|
||||||
RowParallelLinear)
|
RowParallelLinear)
|
||||||
|
from vllm.model_executor.layers.rotary_embedding import get_rope
|
||||||
from vllm.model_executor.layers.sampler import Sampler
|
from vllm.model_executor.layers.sampler import Sampler
|
||||||
from vllm.model_executor.layers.vocab_parallel_embedding import (
|
from vllm.model_executor.layers.vocab_parallel_embedding import (
|
||||||
VocabParallelEmbedding, ParallelLMHead)
|
VocabParallelEmbedding, ParallelLMHead)
|
||||||
@ -144,14 +143,16 @@ class FalconAttention(nn.Module):
|
|||||||
rope_theta = getattr(config, "rope_theta", 10000)
|
rope_theta = getattr(config, "rope_theta", 10000)
|
||||||
max_position_embeddings = getattr(config,
|
max_position_embeddings = getattr(config,
|
||||||
"max_position_embeddings", 8192)
|
"max_position_embeddings", 8192)
|
||||||
self.attn = PagedAttentionWithRoPE(
|
self.rotary_emb = get_rope(
|
||||||
self.num_heads,
|
|
||||||
self.head_dim,
|
self.head_dim,
|
||||||
self.inv_norm_factor,
|
|
||||||
base=rope_theta,
|
|
||||||
max_position=max_position_embeddings,
|
|
||||||
rotary_dim=self.head_dim,
|
rotary_dim=self.head_dim,
|
||||||
num_kv_heads=self.num_kv_heads)
|
max_position=max_position_embeddings,
|
||||||
|
base=rope_theta,
|
||||||
|
)
|
||||||
|
self.attn = PagedAttention(self.num_heads,
|
||||||
|
self.head_dim,
|
||||||
|
self.inv_norm_factor,
|
||||||
|
num_kv_heads=self.num_kv_heads)
|
||||||
elif self.use_alibi:
|
elif self.use_alibi:
|
||||||
tp_rank = get_tensor_model_parallel_rank()
|
tp_rank = get_tensor_model_parallel_rank()
|
||||||
head_start = tp_rank * self.num_heads
|
head_start = tp_rank * self.num_heads
|
||||||
@ -159,11 +160,11 @@ class FalconAttention(nn.Module):
|
|||||||
alibi_slopes = (_get_alibi_slopes(self.total_num_heads) *
|
alibi_slopes = (_get_alibi_slopes(self.total_num_heads) *
|
||||||
self.inv_norm_factor)
|
self.inv_norm_factor)
|
||||||
alibi_slopes = alibi_slopes[head_start:head_end].tolist()
|
alibi_slopes = alibi_slopes[head_start:head_end].tolist()
|
||||||
self.attn = PagedAttentionWithALiBi(self.num_heads,
|
self.attn = PagedAttention(self.num_heads,
|
||||||
self.head_dim,
|
self.head_dim,
|
||||||
self.inv_norm_factor,
|
self.inv_norm_factor,
|
||||||
alibi_slopes,
|
num_kv_heads=self.num_kv_heads,
|
||||||
num_kv_heads=self.num_kv_heads)
|
alibi_slopes=alibi_slopes)
|
||||||
else:
|
else:
|
||||||
self.attn = PagedAttention(self.num_heads,
|
self.attn = PagedAttention(self.num_heads,
|
||||||
self.head_dim,
|
self.head_dim,
|
||||||
@ -182,13 +183,11 @@ class FalconAttention(nn.Module):
|
|||||||
if bias is not None:
|
if bias is not None:
|
||||||
qkv += bias
|
qkv += bias
|
||||||
q, k, v = qkv.split([self.q_size, self.kv_size, self.kv_size], dim=-1)
|
q, k, v = qkv.split([self.q_size, self.kv_size, self.kv_size], dim=-1)
|
||||||
k_cache, v_cache = kv_cache
|
|
||||||
if self.use_rotary:
|
if self.use_rotary:
|
||||||
attn_output = self.attn(positions, q, k, v, k_cache, v_cache,
|
q, k = self.rotary_emb(positions, q, k)
|
||||||
input_metadata, cache_event)
|
k_cache, v_cache = kv_cache
|
||||||
else:
|
attn_output = self.attn(q, k, v, k_cache, v_cache, input_metadata,
|
||||||
attn_output = self.attn(q, k, v, k_cache, v_cache, input_metadata,
|
cache_event)
|
||||||
cache_event)
|
|
||||||
attn_output, bias = self.dense(attn_output)
|
attn_output, bias = self.dense(attn_output)
|
||||||
return attn_output, bias
|
return attn_output, bias
|
||||||
|
|
||||||
|
|||||||
@ -24,11 +24,12 @@ from transformers import GPTJConfig
|
|||||||
|
|
||||||
from vllm.model_executor.input_metadata import InputMetadata
|
from vllm.model_executor.input_metadata import InputMetadata
|
||||||
from vllm.model_executor.layers.activation import get_act_fn
|
from vllm.model_executor.layers.activation import get_act_fn
|
||||||
from vllm.model_executor.layers.attention import PagedAttentionWithRoPE
|
from vllm.model_executor.layers.attention import PagedAttention
|
||||||
from vllm.model_executor.layers.linear import (ColumnParallelLinear,
|
from vllm.model_executor.layers.linear import (ColumnParallelLinear,
|
||||||
LinearMethodBase,
|
LinearMethodBase,
|
||||||
QKVParallelLinear,
|
QKVParallelLinear,
|
||||||
RowParallelLinear)
|
RowParallelLinear)
|
||||||
|
from vllm.model_executor.layers.rotary_embedding import get_rope
|
||||||
from vllm.model_executor.layers.sampler import Sampler
|
from vllm.model_executor.layers.sampler import Sampler
|
||||||
from vllm.model_executor.layers.vocab_parallel_embedding import (
|
from vllm.model_executor.layers.vocab_parallel_embedding import (
|
||||||
VocabParallelEmbedding, ParallelLMHead)
|
VocabParallelEmbedding, ParallelLMHead)
|
||||||
@ -77,15 +78,14 @@ class GPTJAttention(nn.Module):
|
|||||||
rope_theta = getattr(config, "rope_theta", 10000)
|
rope_theta = getattr(config, "rope_theta", 10000)
|
||||||
max_position_embeddings = getattr(config, "max_position_embeddings",
|
max_position_embeddings = getattr(config, "max_position_embeddings",
|
||||||
8192)
|
8192)
|
||||||
self.attn = PagedAttentionWithRoPE(
|
self.rotary_emb = get_rope(
|
||||||
self.num_heads,
|
|
||||||
self.head_size,
|
self.head_size,
|
||||||
scaling,
|
rotary_dim=config.rotary_dim,
|
||||||
config.rotary_dim,
|
|
||||||
base=rope_theta,
|
|
||||||
max_position=max_position_embeddings,
|
max_position=max_position_embeddings,
|
||||||
is_neox_style=False)
|
base=rope_theta,
|
||||||
self.warmup = False
|
is_neox_style=False,
|
||||||
|
)
|
||||||
|
self.attn = PagedAttention(self.num_heads, self.head_size, scaling)
|
||||||
|
|
||||||
def forward(
|
def forward(
|
||||||
self,
|
self,
|
||||||
@ -97,9 +97,10 @@ class GPTJAttention(nn.Module):
|
|||||||
) -> torch.Tensor:
|
) -> torch.Tensor:
|
||||||
qkv, _ = self.qkv_proj(hidden_states)
|
qkv, _ = self.qkv_proj(hidden_states)
|
||||||
q, k, v = qkv.chunk(chunks=3, dim=-1)
|
q, k, v = qkv.chunk(chunks=3, dim=-1)
|
||||||
|
q, k = self.rotary_emb(position_ids, q, k)
|
||||||
k_cache, v_cache = kv_cache
|
k_cache, v_cache = kv_cache
|
||||||
attn_output = self.attn(position_ids, q, k, v, k_cache, v_cache,
|
attn_output = self.attn(q, k, v, k_cache, v_cache, input_metadata,
|
||||||
input_metadata, cache_event)
|
cache_event)
|
||||||
attn_output, _ = self.out_proj(attn_output)
|
attn_output, _ = self.out_proj(attn_output)
|
||||||
return attn_output
|
return attn_output
|
||||||
|
|
||||||
|
|||||||
@ -24,11 +24,12 @@ from transformers import GPTNeoXConfig
|
|||||||
|
|
||||||
from vllm.model_executor.input_metadata import InputMetadata
|
from vllm.model_executor.input_metadata import InputMetadata
|
||||||
from vllm.model_executor.layers.activation import get_act_fn
|
from vllm.model_executor.layers.activation import get_act_fn
|
||||||
from vllm.model_executor.layers.attention import PagedAttentionWithRoPE
|
from vllm.model_executor.layers.attention import PagedAttention
|
||||||
from vllm.model_executor.layers.linear import (ColumnParallelLinear,
|
from vllm.model_executor.layers.linear import (ColumnParallelLinear,
|
||||||
LinearMethodBase,
|
LinearMethodBase,
|
||||||
QKVParallelLinear,
|
QKVParallelLinear,
|
||||||
RowParallelLinear)
|
RowParallelLinear)
|
||||||
|
from vllm.model_executor.layers.rotary_embedding import get_rope
|
||||||
from vllm.model_executor.layers.sampler import Sampler
|
from vllm.model_executor.layers.sampler import Sampler
|
||||||
from vllm.model_executor.layers.vocab_parallel_embedding import (
|
from vllm.model_executor.layers.vocab_parallel_embedding import (
|
||||||
VocabParallelEmbedding, ParallelLMHead)
|
VocabParallelEmbedding, ParallelLMHead)
|
||||||
@ -77,13 +78,13 @@ class GPTNeoXAttention(nn.Module):
|
|||||||
rope_theta = getattr(config, "rope_theta", 10000)
|
rope_theta = getattr(config, "rope_theta", 10000)
|
||||||
max_position_embeddings = getattr(config, "max_position_embeddings",
|
max_position_embeddings = getattr(config, "max_position_embeddings",
|
||||||
8192)
|
8192)
|
||||||
self.attn = PagedAttentionWithRoPE(
|
self.rotary_emb = get_rope(
|
||||||
self.num_heads,
|
|
||||||
self.head_size,
|
self.head_size,
|
||||||
scaling,
|
rotary_dim=rotary_dim,
|
||||||
rotary_dim,
|
max_position=max_position_embeddings,
|
||||||
base=rope_theta,
|
base=rope_theta,
|
||||||
max_position=max_position_embeddings)
|
)
|
||||||
|
self.attn = PagedAttention(self.num_heads, self.head_size, scaling)
|
||||||
|
|
||||||
def forward(
|
def forward(
|
||||||
self,
|
self,
|
||||||
@ -95,9 +96,10 @@ class GPTNeoXAttention(nn.Module):
|
|||||||
) -> torch.Tensor:
|
) -> torch.Tensor:
|
||||||
qkv, _ = self.query_key_value(hidden_states)
|
qkv, _ = self.query_key_value(hidden_states)
|
||||||
q, k, v = qkv.chunk(chunks=3, dim=-1)
|
q, k, v = qkv.chunk(chunks=3, dim=-1)
|
||||||
|
q, k = self.rotary_emb(position_ids, q, k)
|
||||||
k_cache, v_cache = kv_cache
|
k_cache, v_cache = kv_cache
|
||||||
attn_output = self.attn(position_ids, q, k, v, k_cache, v_cache,
|
attn_output = self.attn(q, k, v, k_cache, v_cache, input_metadata,
|
||||||
input_metadata, cache_event)
|
cache_event)
|
||||||
output, _ = self.dense(attn_output)
|
output, _ = self.dense(attn_output)
|
||||||
return output
|
return output
|
||||||
|
|
||||||
|
|||||||
@ -7,12 +7,13 @@ from transformers import LlamaConfig
|
|||||||
|
|
||||||
from vllm.model_executor.input_metadata import InputMetadata
|
from vllm.model_executor.input_metadata import InputMetadata
|
||||||
from vllm.model_executor.layers.activation import SiluAndMul
|
from vllm.model_executor.layers.activation import SiluAndMul
|
||||||
from vllm.model_executor.layers.attention import PagedAttentionWithRoPE
|
from vllm.model_executor.layers.attention import PagedAttention
|
||||||
from vllm.model_executor.layers.layernorm import RMSNorm
|
from vllm.model_executor.layers.layernorm import RMSNorm
|
||||||
from vllm.model_executor.layers.linear import (LinearMethodBase,
|
from vllm.model_executor.layers.linear import (LinearMethodBase,
|
||||||
MergedColumnParallelLinear,
|
MergedColumnParallelLinear,
|
||||||
QKVParallelLinear,
|
QKVParallelLinear,
|
||||||
RowParallelLinear)
|
RowParallelLinear)
|
||||||
|
from vllm.model_executor.layers.rotary_embedding import get_rope
|
||||||
from vllm.model_executor.layers.sampler import Sampler
|
from vllm.model_executor.layers.sampler import Sampler
|
||||||
from vllm.model_executor.layers.vocab_parallel_embedding import (
|
from vllm.model_executor.layers.vocab_parallel_embedding import (
|
||||||
VocabParallelEmbedding, ParallelLMHead)
|
VocabParallelEmbedding, ParallelLMHead)
|
||||||
@ -92,13 +93,13 @@ class InternLMAttention(nn.Module):
|
|||||||
bias=bias,
|
bias=bias,
|
||||||
linear_method=linear_method,
|
linear_method=linear_method,
|
||||||
)
|
)
|
||||||
self.attn = PagedAttentionWithRoPE(
|
self.rotary_emb = get_rope(
|
||||||
self.num_heads,
|
|
||||||
self.head_dim,
|
self.head_dim,
|
||||||
self.scaling,
|
rotary_dim=self.head_dim,
|
||||||
base=self.rope_theta,
|
|
||||||
max_position=self.max_position_embeddings,
|
max_position=self.max_position_embeddings,
|
||||||
rotary_dim=self.head_dim)
|
base=self.rope_theta,
|
||||||
|
)
|
||||||
|
self.attn = PagedAttention(self.num_heads, self.head_dim, self.scaling)
|
||||||
|
|
||||||
def forward(
|
def forward(
|
||||||
self,
|
self,
|
||||||
@ -110,9 +111,10 @@ class InternLMAttention(nn.Module):
|
|||||||
) -> torch.Tensor:
|
) -> torch.Tensor:
|
||||||
qkv, _ = self.qkv_proj(hidden_states)
|
qkv, _ = self.qkv_proj(hidden_states)
|
||||||
q, k, v = qkv.chunk(chunks=3, dim=-1)
|
q, k, v = qkv.chunk(chunks=3, dim=-1)
|
||||||
|
q, k = self.rotary_emb(positions, q, k)
|
||||||
k_cache, v_cache = kv_cache
|
k_cache, v_cache = kv_cache
|
||||||
attn_output = self.attn(positions, q, k, v, k_cache, v_cache,
|
attn_output = self.attn(q, k, v, k_cache, v_cache, input_metadata,
|
||||||
input_metadata, cache_event)
|
cache_event)
|
||||||
output, _ = self.o_proj(attn_output)
|
output, _ = self.o_proj(attn_output)
|
||||||
return output
|
return output
|
||||||
|
|
||||||
|
|||||||
@ -29,12 +29,13 @@ from transformers import LlamaConfig
|
|||||||
|
|
||||||
from vllm.model_executor.input_metadata import InputMetadata
|
from vllm.model_executor.input_metadata import InputMetadata
|
||||||
from vllm.model_executor.layers.activation import SiluAndMul
|
from vllm.model_executor.layers.activation import SiluAndMul
|
||||||
from vllm.model_executor.layers.attention import PagedAttentionWithRoPE
|
from vllm.model_executor.layers.attention import PagedAttention
|
||||||
from vllm.model_executor.layers.layernorm import RMSNorm
|
from vllm.model_executor.layers.layernorm import RMSNorm
|
||||||
from vllm.model_executor.layers.linear import (LinearMethodBase,
|
from vllm.model_executor.layers.linear import (LinearMethodBase,
|
||||||
MergedColumnParallelLinear,
|
MergedColumnParallelLinear,
|
||||||
QKVParallelLinear,
|
QKVParallelLinear,
|
||||||
RowParallelLinear)
|
RowParallelLinear)
|
||||||
|
from vllm.model_executor.layers.rotary_embedding import get_rope
|
||||||
from vllm.model_executor.layers.sampler import Sampler
|
from vllm.model_executor.layers.sampler import Sampler
|
||||||
from vllm.model_executor.layers.vocab_parallel_embedding import (
|
from vllm.model_executor.layers.vocab_parallel_embedding import (
|
||||||
VocabParallelEmbedding, ParallelLMHead)
|
VocabParallelEmbedding, ParallelLMHead)
|
||||||
@ -126,15 +127,18 @@ class LlamaAttention(nn.Module):
|
|||||||
bias=False,
|
bias=False,
|
||||||
linear_method=linear_method,
|
linear_method=linear_method,
|
||||||
)
|
)
|
||||||
self.attn = PagedAttentionWithRoPE(
|
|
||||||
self.num_heads,
|
self.rotary_emb = get_rope(
|
||||||
self.head_dim,
|
self.head_dim,
|
||||||
self.scaling,
|
|
||||||
base=self.rope_theta,
|
|
||||||
max_position=self.max_position_embeddings,
|
|
||||||
rotary_dim=self.head_dim,
|
rotary_dim=self.head_dim,
|
||||||
num_kv_heads=self.num_kv_heads,
|
max_position=max_position_embeddings,
|
||||||
rope_scaling=rope_scaling)
|
base=rope_theta,
|
||||||
|
rope_scaling=rope_scaling,
|
||||||
|
)
|
||||||
|
self.attn = PagedAttention(self.num_heads,
|
||||||
|
self.head_dim,
|
||||||
|
self.scaling,
|
||||||
|
num_kv_heads=self.num_kv_heads)
|
||||||
|
|
||||||
def forward(
|
def forward(
|
||||||
self,
|
self,
|
||||||
@ -146,9 +150,10 @@ class LlamaAttention(nn.Module):
|
|||||||
) -> torch.Tensor:
|
) -> torch.Tensor:
|
||||||
qkv, _ = self.qkv_proj(hidden_states)
|
qkv, _ = self.qkv_proj(hidden_states)
|
||||||
q, k, v = qkv.split([self.q_size, self.kv_size, self.kv_size], dim=-1)
|
q, k, v = qkv.split([self.q_size, self.kv_size, self.kv_size], dim=-1)
|
||||||
|
q, k = self.rotary_emb(positions, q, k)
|
||||||
k_cache, v_cache = kv_cache
|
k_cache, v_cache = kv_cache
|
||||||
attn_output = self.attn(positions, q, k, v, k_cache, v_cache,
|
attn_output = self.attn(q, k, v, k_cache, v_cache, input_metadata,
|
||||||
input_metadata, cache_event)
|
cache_event)
|
||||||
output, _ = self.o_proj(attn_output)
|
output, _ = self.o_proj(attn_output)
|
||||||
return output
|
return output
|
||||||
|
|
||||||
|
|||||||
@ -29,12 +29,13 @@ from transformers import MistralConfig
|
|||||||
|
|
||||||
from vllm.model_executor.input_metadata import InputMetadata
|
from vllm.model_executor.input_metadata import InputMetadata
|
||||||
from vllm.model_executor.layers.activation import SiluAndMul
|
from vllm.model_executor.layers.activation import SiluAndMul
|
||||||
from vllm.model_executor.layers.attention import PagedAttentionWithRoPE
|
from vllm.model_executor.layers.attention import PagedAttention
|
||||||
from vllm.model_executor.layers.layernorm import RMSNorm
|
from vllm.model_executor.layers.layernorm import RMSNorm
|
||||||
from vllm.model_executor.layers.linear import (LinearMethodBase,
|
from vllm.model_executor.layers.linear import (LinearMethodBase,
|
||||||
MergedColumnParallelLinear,
|
MergedColumnParallelLinear,
|
||||||
QKVParallelLinear,
|
QKVParallelLinear,
|
||||||
RowParallelLinear)
|
RowParallelLinear)
|
||||||
|
from vllm.model_executor.layers.rotary_embedding import get_rope
|
||||||
from vllm.model_executor.layers.sampler import Sampler
|
from vllm.model_executor.layers.sampler import Sampler
|
||||||
from vllm.model_executor.layers.vocab_parallel_embedding import (
|
from vllm.model_executor.layers.vocab_parallel_embedding import (
|
||||||
VocabParallelEmbedding, ParallelLMHead)
|
VocabParallelEmbedding, ParallelLMHead)
|
||||||
@ -124,14 +125,18 @@ class MistralAttention(nn.Module):
|
|||||||
bias=False,
|
bias=False,
|
||||||
linear_method=linear_method,
|
linear_method=linear_method,
|
||||||
)
|
)
|
||||||
self.attn = PagedAttentionWithRoPE(self.num_heads,
|
|
||||||
self.head_dim,
|
self.rotary_emb = get_rope(
|
||||||
self.scaling,
|
self.head_dim,
|
||||||
base=self.rope_theta,
|
rotary_dim=self.head_dim,
|
||||||
max_position=max_position,
|
max_position=max_position,
|
||||||
rotary_dim=self.head_dim,
|
base=self.rope_theta,
|
||||||
num_kv_heads=self.num_kv_heads,
|
)
|
||||||
sliding_window=self.sliding_window)
|
self.attn = PagedAttention(self.num_heads,
|
||||||
|
self.head_dim,
|
||||||
|
self.scaling,
|
||||||
|
num_kv_heads=self.num_kv_heads,
|
||||||
|
sliding_window=self.sliding_window)
|
||||||
|
|
||||||
def forward(
|
def forward(
|
||||||
self,
|
self,
|
||||||
@ -143,9 +148,10 @@ class MistralAttention(nn.Module):
|
|||||||
) -> torch.Tensor:
|
) -> torch.Tensor:
|
||||||
qkv, _ = self.qkv_proj(hidden_states)
|
qkv, _ = self.qkv_proj(hidden_states)
|
||||||
q, k, v = qkv.split([self.q_size, self.kv_size, self.kv_size], dim=-1)
|
q, k, v = qkv.split([self.q_size, self.kv_size, self.kv_size], dim=-1)
|
||||||
|
q, k = self.rotary_emb(positions, q, k)
|
||||||
k_cache, v_cache = kv_cache
|
k_cache, v_cache = kv_cache
|
||||||
attn_output = self.attn(positions, q, k, v, k_cache, v_cache,
|
attn_output = self.attn(q, k, v, k_cache, v_cache, input_metadata,
|
||||||
input_metadata, cache_event)
|
cache_event)
|
||||||
output, _ = self.o_proj(attn_output)
|
output, _ = self.o_proj(attn_output)
|
||||||
return output
|
return output
|
||||||
|
|
||||||
|
|||||||
@ -8,7 +8,7 @@ import torch.nn as nn
|
|||||||
|
|
||||||
from vllm.model_executor.input_metadata import InputMetadata
|
from vllm.model_executor.input_metadata import InputMetadata
|
||||||
from vllm.model_executor.layers.activation import get_act_fn
|
from vllm.model_executor.layers.activation import get_act_fn
|
||||||
from vllm.model_executor.layers.attention import PagedAttentionWithALiBi
|
from vllm.model_executor.layers.attention import PagedAttention
|
||||||
from vllm.model_executor.layers.linear import (ColumnParallelLinear,
|
from vllm.model_executor.layers.linear import (ColumnParallelLinear,
|
||||||
LinearMethodBase,
|
LinearMethodBase,
|
||||||
QKVParallelLinear,
|
QKVParallelLinear,
|
||||||
@ -87,8 +87,10 @@ class MPTAttention(nn.Module):
|
|||||||
|
|
||||||
self.head_dim = self.d_model // self.total_num_heads
|
self.head_dim = self.d_model // self.total_num_heads
|
||||||
scaling = self.head_dim**-0.5
|
scaling = self.head_dim**-0.5
|
||||||
self.attn = PagedAttentionWithALiBi(self.num_heads, self.head_dim,
|
self.attn = PagedAttention(self.num_heads,
|
||||||
scaling, alibi_slopes)
|
self.head_dim,
|
||||||
|
scaling,
|
||||||
|
alibi_slopes=alibi_slopes)
|
||||||
|
|
||||||
def forward(
|
def forward(
|
||||||
self,
|
self,
|
||||||
|
|||||||
@ -43,11 +43,12 @@ from transformers import PretrainedConfig
|
|||||||
|
|
||||||
from vllm.model_executor.input_metadata import InputMetadata
|
from vllm.model_executor.input_metadata import InputMetadata
|
||||||
from vllm.model_executor.layers.activation import get_act_fn
|
from vllm.model_executor.layers.activation import get_act_fn
|
||||||
from vllm.model_executor.layers.attention import PagedAttentionWithRoPE
|
from vllm.model_executor.layers.attention import PagedAttention
|
||||||
from vllm.model_executor.layers.linear import (ColumnParallelLinear,
|
from vllm.model_executor.layers.linear import (ColumnParallelLinear,
|
||||||
LinearMethodBase,
|
LinearMethodBase,
|
||||||
QKVParallelLinear,
|
QKVParallelLinear,
|
||||||
RowParallelLinear)
|
RowParallelLinear)
|
||||||
|
from vllm.model_executor.layers.rotary_embedding import get_rope
|
||||||
from vllm.model_executor.layers.sampler import Sampler
|
from vllm.model_executor.layers.sampler import Sampler
|
||||||
from vllm.model_executor.layers.vocab_parallel_embedding import (
|
from vllm.model_executor.layers.vocab_parallel_embedding import (
|
||||||
VocabParallelEmbedding, ParallelLMHead)
|
VocabParallelEmbedding, ParallelLMHead)
|
||||||
@ -119,13 +120,13 @@ class PhiAttention(nn.Module):
|
|||||||
# https://huggingface.co/microsoft/phi-1_5/blob/d212a789620c380ff32ca1d1ee9943a777360987/modeling_phi.py#L518
|
# https://huggingface.co/microsoft/phi-1_5/blob/d212a789620c380ff32ca1d1ee9943a777360987/modeling_phi.py#L518
|
||||||
rope_theta = 10000
|
rope_theta = 10000
|
||||||
max_position_embeddings = getattr(config, "n_positions", 2048)
|
max_position_embeddings = getattr(config, "n_positions", 2048)
|
||||||
self.attn = PagedAttentionWithRoPE(
|
self.rotary_emb = get_rope(
|
||||||
self.num_heads,
|
|
||||||
self.head_size,
|
self.head_size,
|
||||||
scaling,
|
rotary_dim=rotary_dim,
|
||||||
rotary_dim,
|
max_position=max_position_embeddings,
|
||||||
base=rope_theta,
|
base=rope_theta,
|
||||||
max_position=max_position_embeddings)
|
)
|
||||||
|
self.attn = PagedAttention(self.num_heads, self.head_size, scaling)
|
||||||
|
|
||||||
def forward(
|
def forward(
|
||||||
self,
|
self,
|
||||||
@ -137,9 +138,10 @@ class PhiAttention(nn.Module):
|
|||||||
) -> torch.Tensor:
|
) -> torch.Tensor:
|
||||||
qkv, _ = self.Wqkv(hidden_states)
|
qkv, _ = self.Wqkv(hidden_states)
|
||||||
q, k, v = qkv.chunk(chunks=3, dim=-1)
|
q, k, v = qkv.chunk(chunks=3, dim=-1)
|
||||||
|
q, k = self.rotary_emb(position_ids, q, k)
|
||||||
k_cache, v_cache = kv_cache
|
k_cache, v_cache = kv_cache
|
||||||
attn_output = self.attn(position_ids, q, k, v, k_cache, v_cache,
|
attn_output = self.attn(q, k, v, k_cache, v_cache, input_metadata,
|
||||||
input_metadata, cache_event)
|
cache_event)
|
||||||
output, _ = self.out_proj(attn_output)
|
output, _ = self.out_proj(attn_output)
|
||||||
return output
|
return output
|
||||||
|
|
||||||
|
|||||||
@ -11,12 +11,13 @@ from torch import nn
|
|||||||
|
|
||||||
from vllm.model_executor.input_metadata import InputMetadata
|
from vllm.model_executor.input_metadata import InputMetadata
|
||||||
from vllm.model_executor.layers.activation import SiluAndMul
|
from vllm.model_executor.layers.activation import SiluAndMul
|
||||||
from vllm.model_executor.layers.attention import PagedAttentionWithRoPE
|
from vllm.model_executor.layers.attention import PagedAttention
|
||||||
from vllm.model_executor.layers.layernorm import RMSNorm
|
from vllm.model_executor.layers.layernorm import RMSNorm
|
||||||
from vllm.model_executor.layers.linear import (LinearMethodBase,
|
from vllm.model_executor.layers.linear import (LinearMethodBase,
|
||||||
MergedColumnParallelLinear,
|
MergedColumnParallelLinear,
|
||||||
QKVParallelLinear,
|
QKVParallelLinear,
|
||||||
RowParallelLinear)
|
RowParallelLinear)
|
||||||
|
from vllm.model_executor.layers.rotary_embedding import get_rope
|
||||||
from vllm.model_executor.layers.sampler import Sampler
|
from vllm.model_executor.layers.sampler import Sampler
|
||||||
from vllm.model_executor.layers.vocab_parallel_embedding import (
|
from vllm.model_executor.layers.vocab_parallel_embedding import (
|
||||||
VocabParallelEmbedding, ParallelLMHead)
|
VocabParallelEmbedding, ParallelLMHead)
|
||||||
@ -95,14 +96,15 @@ class QWenAttention(nn.Module):
|
|||||||
linear_method=linear_method,
|
linear_method=linear_method,
|
||||||
)
|
)
|
||||||
self.scaling = self.head_dim**-0.5
|
self.scaling = self.head_dim**-0.5
|
||||||
self.attn = PagedAttentionWithRoPE(
|
|
||||||
self.num_heads,
|
self.rotary_emb = get_rope(
|
||||||
self.head_dim,
|
self.head_dim,
|
||||||
self.scaling,
|
|
||||||
rotary_dim=self.head_dim,
|
rotary_dim=self.head_dim,
|
||||||
base=rope_theta,
|
|
||||||
max_position=max_position_embeddings,
|
max_position=max_position_embeddings,
|
||||||
rope_scaling=rope_scaling)
|
base=rope_theta,
|
||||||
|
rope_scaling=rope_scaling,
|
||||||
|
)
|
||||||
|
self.attn = PagedAttention(self.num_heads, self.head_dim, self.scaling)
|
||||||
|
|
||||||
def forward(
|
def forward(
|
||||||
self,
|
self,
|
||||||
@ -114,10 +116,10 @@ class QWenAttention(nn.Module):
|
|||||||
) -> torch.Tensor:
|
) -> torch.Tensor:
|
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qkv, _ = self.c_attn(hidden_states)
|
qkv, _ = self.c_attn(hidden_states)
|
||||||
q, k, v = qkv.chunk(chunks=3, dim=-1)
|
q, k, v = qkv.chunk(chunks=3, dim=-1)
|
||||||
|
q, k = self.rotary_emb(positions, q, k)
|
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k_cache, v_cache = kv_cache
|
k_cache, v_cache = kv_cache
|
||||||
attn_output = self.attn(positions, q, k, v, k_cache, v_cache,
|
attn_output = self.attn(q, k, v, k_cache, v_cache, input_metadata,
|
||||||
input_metadata, cache_event)
|
cache_event)
|
||||||
|
|
||||||
output, _ = self.c_proj(attn_output)
|
output, _ = self.c_proj(attn_output)
|
||||||
return output
|
return output
|
||||||
|
|||||||
@ -29,12 +29,13 @@ from vllm.transformers_utils.configs.yi import YiConfig
|
|||||||
|
|
||||||
from vllm.model_executor.input_metadata import InputMetadata
|
from vllm.model_executor.input_metadata import InputMetadata
|
||||||
from vllm.model_executor.layers.activation import SiluAndMul
|
from vllm.model_executor.layers.activation import SiluAndMul
|
||||||
from vllm.model_executor.layers.attention import PagedAttentionWithRoPE
|
from vllm.model_executor.layers.attention import PagedAttention
|
||||||
from vllm.model_executor.layers.layernorm import RMSNorm
|
from vllm.model_executor.layers.layernorm import RMSNorm
|
||||||
from vllm.model_executor.layers.linear import (LinearMethodBase,
|
from vllm.model_executor.layers.linear import (LinearMethodBase,
|
||||||
MergedColumnParallelLinear,
|
MergedColumnParallelLinear,
|
||||||
QKVParallelLinear,
|
QKVParallelLinear,
|
||||||
RowParallelLinear)
|
RowParallelLinear)
|
||||||
|
from vllm.model_executor.layers.rotary_embedding import get_rope
|
||||||
from vllm.model_executor.layers.sampler import Sampler
|
from vllm.model_executor.layers.sampler import Sampler
|
||||||
from vllm.model_executor.layers.vocab_parallel_embedding import (
|
from vllm.model_executor.layers.vocab_parallel_embedding import (
|
||||||
VocabParallelEmbedding, ParallelLMHead)
|
VocabParallelEmbedding, ParallelLMHead)
|
||||||
@ -126,15 +127,17 @@ class YiAttention(nn.Module):
|
|||||||
bias=False,
|
bias=False,
|
||||||
linear_method=linear_method,
|
linear_method=linear_method,
|
||||||
)
|
)
|
||||||
self.attn = PagedAttentionWithRoPE(
|
self.rotary_emb = get_rope(
|
||||||
self.num_heads,
|
|
||||||
self.head_dim,
|
self.head_dim,
|
||||||
self.scaling,
|
|
||||||
base=self.rope_theta,
|
|
||||||
max_position=self.max_position_embeddings,
|
|
||||||
rotary_dim=self.head_dim,
|
rotary_dim=self.head_dim,
|
||||||
num_kv_heads=self.num_kv_heads,
|
max_position=max_position_embeddings,
|
||||||
rope_scaling=rope_scaling)
|
base=self.rope_theta,
|
||||||
|
rope_scaling=rope_scaling,
|
||||||
|
)
|
||||||
|
self.attn = PagedAttention(self.num_heads,
|
||||||
|
self.head_dim,
|
||||||
|
self.scaling,
|
||||||
|
num_kv_heads=self.num_kv_heads)
|
||||||
|
|
||||||
def forward(
|
def forward(
|
||||||
self,
|
self,
|
||||||
@ -146,9 +149,10 @@ class YiAttention(nn.Module):
|
|||||||
) -> torch.Tensor:
|
) -> torch.Tensor:
|
||||||
qkv, _ = self.qkv_proj(hidden_states)
|
qkv, _ = self.qkv_proj(hidden_states)
|
||||||
q, k, v = qkv.split([self.q_size, self.kv_size, self.kv_size], dim=-1)
|
q, k, v = qkv.split([self.q_size, self.kv_size, self.kv_size], dim=-1)
|
||||||
|
q, k = self.rotary_emb(positions, q, k)
|
||||||
k_cache, v_cache = kv_cache
|
k_cache, v_cache = kv_cache
|
||||||
attn_output = self.attn(positions, q, k, v, k_cache, v_cache,
|
attn_output = self.attn(q, k, v, k_cache, v_cache, input_metadata,
|
||||||
input_metadata, cache_event)
|
cache_event)
|
||||||
output, _ = self.o_proj(attn_output)
|
output, _ = self.o_proj(attn_output)
|
||||||
return output
|
return output
|
||||||
|
|
||||||
|
|||||||
Loading…
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Reference in New Issue
Block a user