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NVIDIA-NeMo / Megatron-Bridge Public

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26.06

Open

No due date

•Last updated Jun 7, 2026

26% complete

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0 issues of 17 selected

Open
(17)
Closed
(6)

[Test] Full-iteration CG + FSDP

area:perfPerformance optimizations and benchmarkingPerformance optimizations and benchmarking

featureNew capabilities, enhancements, or enablement workNew capabilities, enhancements, or enablement work

performance/releasePerformance items related with NeMo releasePerformance items related with NeMo release

trackingTracking issue for an ongoing project with smaller stepsTracking issue for an ongoing project with smaller steps

Status: Open.

#1688 In NVIDIA-NeMo/Megatron-Bridge;

· erhoo82 opened

on Dec 10, 2025

[feature] Test overlap param gather for layerwise muon

area:perfPerformance optimizations and benchmarkingPerformance optimizations and benchmarking

featureNew capabilities, enhancements, or enablement workNew capabilities, enhancements, or enablement work

performance/releasePerformance items related with NeMo releasePerformance items related with NeMo release

trackingTracking issue for an ongoing project with smaller stepsTracking issue for an ongoing project with smaller steps

Status: Open.

#2944 In NVIDIA-NeMo/Megatron-Bridge;

· dingqingy-nv opened

on Mar 22, 2026

[feature] Use BOLT for DSv3

area:perfPerformance optimizations and benchmarkingPerformance optimizations and benchmarking

featureNew capabilities, enhancements, or enablement workNew capabilities, enhancements, or enablement work

performance/releasePerformance items related with NeMo releasePerformance items related with NeMo release

trackingTracking issue for an ongoing project with smaller stepsTracking issue for an ongoing project with smaller steps

Status: Open.

#1729 In NVIDIA-NeMo/Megatron-Bridge;

· erhoo82 opened

on Dec 15, 2025

[feature] Test DSV3 FSDP NVFP4 at max scale proxy

area:perfPerformance optimizations and benchmarkingPerformance optimizations and benchmarking

featureNew capabilities, enhancements, or enablement workNew capabilities, enhancements, or enablement work

performance/releasePerformance items related with NeMo releasePerformance items related with NeMo release

trackingTracking issue for an ongoing project with smaller stepsTracking issue for an ongoing project with smaller steps

Status: Open.

#2930 In NVIDIA-NeMo/Megatron-Bridge;

· dingqingy-nv opened

on Mar 20, 2026

[feature] HybridEP optimization for NVL8 with EP>8, and tests for H100 and B200/300

area:perfPerformance optimizations and benchmarkingPerformance optimizations and benchmarking

featureNew capabilities, enhancements, or enablement workNew capabilities, enhancements, or enablement work

performance/releasePerformance items related with NeMo releasePerformance items related with NeMo release

trackingTracking issue for an ongoing project with smaller stepsTracking issue for an ongoing project with smaller steps

Status: Open.

#2883 In NVIDIA-NeMo/Megatron-Bridge;

· erhoo82 opened

on Mar 18, 2026

[feature] DSv3 recipe for real routing

area:perfPerformance optimizations and benchmarkingPerformance optimizations and benchmarking

featureNew capabilities, enhancements, or enablement workNew capabilities, enhancements, or enablement work

performance/releasePerformance items related with NeMo releasePerformance items related with NeMo release

trackingTracking issue for an ongoing project with smaller stepsTracking issue for an ongoing project with smaller steps

Status: Open.

#2242 In NVIDIA-NeMo/Megatron-Bridge;

· erhoo82 opened

on Feb 5, 2026

[feature] FA4 bump

area:perfPerformance optimizations and benchmarkingPerformance optimizations and benchmarking

featureNew capabilities, enhancements, or enablement workNew capabilities, enhancements, or enablement work

performance/releasePerformance items related with NeMo releasePerformance items related with NeMo release

trackingTracking issue for an ongoing project with smaller stepsTracking issue for an ongoing project with smaller steps

Status: Open.

#3392 In NVIDIA-NeMo/Megatron-Bridge;

· dingqingy-nv opened

on Apr 18, 2026

[feature] enable 0SM PP

area:perfPerformance optimizations and benchmarkingPerformance optimizations and benchmarking

featureNew capabilities, enhancements, or enablement workNew capabilities, enhancements, or enablement work

performance/releasePerformance items related with NeMo releasePerformance items related with NeMo release

trackingTracking issue for an ongoing project with smaller stepsTracking issue for an ongoing project with smaller steps

Status: Open.

#3394 In NVIDIA-NeMo/Megatron-Bridge;

· dingqingy-nv opened

on Apr 18, 2026

[feature] enable MLA down proj fusion if no regression

area:perfPerformance optimizations and benchmarkingPerformance optimizations and benchmarking

featureNew capabilities, enhancements, or enablement workNew capabilities, enhancements, or enablement work

performance/releasePerformance items related with NeMo releasePerformance items related with NeMo release

trackingTracking issue for an ongoing project with smaller stepsTracking issue for an ongoing project with smaller steps

Status: Open.

#3396 In NVIDIA-NeMo/Megatron-Bridge;

· dingqingy-nv opened

on Apr 18, 2026

[feature] [patch] Test and enable FP4 param gather

area:perfPerformance optimizations and benchmarkingPerformance optimizations and benchmarking

featureNew capabilities, enhancements, or enablement workNew capabilities, enhancements, or enablement work

performance/releasePerformance items related with NeMo releasePerformance items related with NeMo release

trackingTracking issue for an ongoing project with smaller stepsTracking issue for an ongoing project with smaller steps

Status: Open.

#3383 In NVIDIA-NeMo/Megatron-Bridge;

· dingqingy-nv opened

on Apr 17, 2026

[patch][Bug] Megatron-FSDP fails only at MBridge due to assert

area:trainingTraining loop, callbacks, and runtime integrationTraining loop, callbacks, and runtime integration

bugSomething isn't workingSomething isn't working

performance/releasePerformance items related with NeMo releasePerformance items related with NeMo release

trackingTracking issue for an ongoing project with smaller stepsTracking issue for an ongoing project with smaller steps

Status: Open.

#1971 In NVIDIA-NeMo/Megatron-Bridge;

· erhoo82 opened

on Jan 16, 2026

[Test] Use IB-SHARP in Hybrid-FSDP replication domain communication

area:perfPerformance optimizations and benchmarkingPerformance optimizations and benchmarking

bugSomething isn't workingSomething isn't working

performance/releasePerformance items related with NeMo releasePerformance items related with NeMo release

trackingTracking issue for an ongoing project with smaller stepsTracking issue for an ongoing project with smaller steps

Status: Open.

#1898 In NVIDIA-NeMo/Megatron-Bridge;

· erhoo82 opened

on Jan 9, 2026

[bug] [patch] Qwen3 FP8 Performance worse than BF16

area:perfPerformance optimizations and benchmarkingPerformance optimizations and benchmarking

bugSomething isn't workingSomething isn't working

performance/releasePerformance items related with NeMo releasePerformance items related with NeMo release

trackingTracking issue for an ongoing project with smaller stepsTracking issue for an ongoing project with smaller steps

Status: Open.

#2842 In NVIDIA-NeMo/Megatron-Bridge;

· rhmukundan opened

on Mar 17, 2026

[Bug] [patch] GPT-OSS low MXFP8 speedup comparing to BF16

area:perfPerformance optimizations and benchmarkingPerformance optimizations and benchmarking

featureNew capabilities, enhancements, or enablement workNew capabilities, enhancements, or enablement work

performance/releasePerformance items related with NeMo releasePerformance items related with NeMo release

trackingTracking issue for an ongoing project with smaller stepsTracking issue for an ongoing project with smaller steps

Status: Open.

#3389 In NVIDIA-NeMo/Megatron-Bridge;

· dingqingy-nv opened

on Apr 17, 2026

[Test] H100 QWEN3 Performance tuning with HybridEP

area:perfPerformance optimizations and benchmarkingPerformance optimizations and benchmarking

featureNew capabilities, enhancements, or enablement workNew capabilities, enhancements, or enablement work

performance/releasePerformance items related with NeMo releasePerformance items related with NeMo release

trackingTracking issue for an ongoing project with smaller stepsTracking issue for an ongoing project with smaller steps

Status: Open.

#2119 In NVIDIA-NeMo/Megatron-Bridge;

· scsudhakaran opened

on Jan 29, 2026

[bug] OOM observed with `fp4_param_gather=true` for "DEEPSEEK_V3_PRETRAIN_CONFIG_B200_NVFP4_V2"

area:perfPerformance optimizations and benchmarkingPerformance optimizations and benchmarking

bugSomething isn't workingSomething isn't working

performance/releasePerformance items related with NeMo releasePerformance items related with NeMo release

trackingTracking issue for an ongoing project with smaller stepsTracking issue for an ongoing project with smaller steps

Status: Open.

#3597 In NVIDIA-NeMo/Megatron-Bridge;

· malay-nagda opened

on Apr 30, 2026

[feature] Tune qwen3 30B gb200 mxfp8

area:perfPerformance optimizations and benchmarkingPerformance optimizations and benchmarking

featureNew capabilities, enhancements, or enablement workNew capabilities, enhancements, or enablement work

performance/releasePerformance items related with NeMo releasePerformance items related with NeMo release

trackingTracking issue for an ongoing project with smaller stepsTracking issue for an ongoing project with smaller steps

Status: Open.

#3851 In NVIDIA-NeMo/Megatron-Bridge;

· dingqingy-nv opened

on May 15, 2026

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