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Optimize MoE topk with torch compile #3236

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merged 3 commits into from
Jan 31, 2025
Merged

Optimize MoE topk with torch compile #3236

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cde01bc
compile topk function
ispobock Jan 31, 2025
5665b37
Merge branch 'main' into topk-compile
ispobock Jan 31, 2025
b9928ec
Merge branch 'main' into topk-compile
zhyncs Jan 31, 2025
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4 changes: 4 additions & 0 deletions python/sglang/srt/layers/moe/topk.py
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Original file line number Diff line number Diff line change
Expand Up @@ -17,6 +17,8 @@
import torch
import torch.nn.functional as F

from sglang.srt.utils import get_compiler_backend


def fused_topk_native(
hidden_states: torch.Tensor,
Expand Down Expand Up @@ -74,6 +76,7 @@ def fused_topk(


# This is used by the Deepseek-V2 model
@torch.compile(dynamic=True, backend=get_compiler_backend())
def grouped_topk(
hidden_states: torch.Tensor,
gating_output: torch.Tensor,
Expand Down Expand Up @@ -108,6 +111,7 @@ def grouped_topk(
return topk_weights.to(torch.float32), topk_ids.to(torch.int32)


@torch.compile(dynamic=True, backend=get_compiler_backend())
def biased_grouped_topk(
hidden_states: torch.Tensor,
gating_output: torch.Tensor,
Expand Down
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