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feat: Add Mixture of Experts FP8xMXFP4 support #4750

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@djns99 djns99 commented May 29, 2025

PR title

Description

This PR adds support for using FP8 x MXFP4 on Blackwell to the Mixture of Experts plugin.
This is exposed through the C++ API, but not integrated into any torch flow

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mixtureOfExpertsTests.cu

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@djns99 djns99 requested a review from a team as a code owner May 29, 2025 03:49
@djns99 djns99 requested review from liji-nv and dongxuy04 May 29, 2025 03:49
@djns99 djns99 force-pushed the user/dastokes/mxfp4_moe_support branch from 5b440c5 to 42993b6 Compare May 29, 2025 03:58
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djns99 commented May 29, 2025

/bot run

@djns99 djns99 requested review from jinyangyuan-nvidia and removed request for liji-nv and dongxuy04 May 29, 2025 03:59
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PR_Github #6867 [ run ] triggered by Bot

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PR_Github #6867 [ run ] completed with state SUCCESS
/LLM/main/L0_MergeRequest_PR pipeline #4995 completed with status: 'FAILURE'

@djns99 djns99 force-pushed the user/dastokes/mxfp4_moe_support branch 2 times, most recently from de5981d to aa4e98f Compare May 29, 2025 23:13
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djns99 commented May 29, 2025

/bot run

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PR_Github #6964 [ run ] triggered by Bot

@djns99 djns99 force-pushed the user/dastokes/mxfp4_moe_support branch from aa4e98f to b19233c Compare May 30, 2025 03:13
@djns99 djns99 force-pushed the user/dastokes/mxfp4_moe_support branch from b19233c to 3945647 Compare May 30, 2025 03:20
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djns99 commented May 30, 2025

/bot run --disable-fail-fast

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PR_Github #7010 [ run ] triggered by Bot

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PR_Github #6964 [ run ] completed with state ABORTED

@@ -1521,7 +1521,7 @@ def forward_chunk(
ep_rank=ep_rank,
cluster_size=cluster_size,
cluster_rank=cluster_rank,
use_fp8_block_scaling=use_fp8_block_scaling,
use_deepseek_fp8_block_scale=use_deepseek_fp8_block_scale,
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Need a better naming rather than make it deepseek specific.

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3 participants