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[Hardware][Intel] Isolate CPUModelRunner and ModelRunner for better maintenance #3824

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merged 2 commits into from
Apr 11, 2024

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bigPYJ1151
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Fix #3776

This PR created a new CPUModelRunner from ModelRunner for better maintenance.


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@WoosukKwon WoosukKwon self-assigned this Apr 3, 2024
@bigPYJ1151 bigPYJ1151 mentioned this pull request Apr 9, 2024
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@bigPYJ1151 Thanks for the PR! Could you please rebase the PR before merge?

@@ -141,7 +141,7 @@ def forward(
attn_metadata.kv_cache_dtype)

if attn_metadata.is_prompt:
if (kv_cache is None or attn_metadata.block_tables.numel() == 0):
if (kv_cache is None or attn_metadata.block_tables is None):
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Suggested change
if (kv_cache is None or attn_metadata.block_tables is None):
if kv_cache is None or attn_metadata.block_tables is None:

Comment on lines 224 to 225
bias = bias[None, :].expand(num_heads, prompt_len, prompt_len)\
.mul(alibi_slopes[:, None, None])
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Why do we change this?

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Because expand outputs a tensor view doesn't support inplace operation.

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Thanks for factoring out this part from GPU model runner. We will work on reducing the duplicated code in the future.

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Hi @WoosukKwon thanks for your comments, this PR is ready to merge.

BTW, the chunked prefill enabled in #3884 looks good, and it made some changes in TorchSDPAbackend. But the results of CPU backend became wrong. The backend doesn't support forward_prefix, so I think the chunked prefill can't be enabled in the backend for now if my understanding is right. I reverted the changes of TorchSDPAbackend from #3884 in this PR.

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@bigPYJ1151 LGTM! Thanks for submitting the PR!

@WoosukKwon WoosukKwon merged commit 8afca50 into vllm-project:main Apr 11, 2024
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njhill commented Apr 11, 2024

Should we create a new issue to track the deduplication? That much duplicated code makes me feel a bit uneasy lol

andy-neuma pushed a commit to neuralmagic/nm-vllm that referenced this pull request Apr 12, 2024
z103cb pushed a commit to z103cb/opendatahub_vllm that referenced this pull request Apr 22, 2024
Temirulan pushed a commit to Temirulan/vllm-whisper that referenced this pull request Sep 6, 2024
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[Misc]: Isolate CPUModelRunner and ModelRunner for better maintenance
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