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Pull requests: NVIDIA-NeMo/Megatron-Bridge

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Pull requests list

[data] fix: Resume MegatronMIMO validation samples area:data Dataset builders, preprocessing, and samplers bug Something isn't working needs-more-tests Requires additional L0 and L1 test coverage before merge needs-review PR is ready for code review and waiting on a reviewer
#5987 opened Sep 6, 2026 by yaoyu-33 Contributor Loading…
3
[training] fix: Use global DP for DistTrain sample accounting area:training Training loop, callbacks, and runtime integration bug Something isn't working needs-more-tests Requires additional L0 and L1 test coverage before merge needs-review PR is ready for code review and waiting on a reviewer
#5986 opened Sep 6, 2026 by yaoyu-33 Contributor Loading…
3
[inference] fix: Forward derived DeepSeek-V4 pipeline layouts area:misc Cross-cutting utilities, logging, helpers, and other changes bug Something isn't working needs-more-tests Requires additional L0 and L1 test coverage before merge needs-review PR is ready for code review and waiting on a reviewer
#5985 opened Sep 6, 2026 by yaoyu-33 Contributor Loading…
4
[data] fix: Release inherited GPU descriptors in workers area:data Dataset builders, preprocessing, and samplers bug Something isn't working needs-more-tests Requires additional L0 and L1 test coverage before merge needs-review PR is ready for code review and waiting on a reviewer
#5984 opened Sep 6, 2026 by yaoyu-33 Contributor Loading…
3
[training] fix: Enable NVRx detection for MegatronMIMO area:training Training loop, callbacks, and runtime integration bug Something isn't working needs-more-tests Requires additional L0 and L1 test coverage before merge needs-review PR is ready for code review and waiting on a reviewer
#5983 opened Sep 6, 2026 by yaoyu-33 Contributor Loading…
3
fix(peft): reuse grouped expert outputs for LoRA community-request
#5971 opened Sep 5, 2026 by hershg Contributor • Draft
3 of 4 tasks
1
perf(recipe): enable fused GDN conv1d for Qwen3.5-VL perf recipes
#5970 opened Sep 4, 2026 by tomlifu Contributor • Draft
5 tasks
1
Perf(recipe): enable CuTe DSL fused grouped GEMM for Qwen3.5-VL GB300 area:perf Performance optimizations and benchmarking feature New capabilities, enhancements, or enablement work needs-more-tests Requires additional L0 and L1 test coverage before merge needs-review PR is ready for code review and waiting on a reviewer
#5969 opened Sep 4, 2026 by tomlifu Contributor Loading…
5 tasks
2
perf(qwen): enable Qwen3 235B NVFP4 full-iteration optimizations area:perf Performance optimizations and benchmarking feature New capabilities, enhancements, or enablement work full-test-suite needs-more-tests Requires additional L0 and L1 test coverage before merge needs-review PR is ready for code review and waiting on a reviewer
#5965 opened Sep 4, 2026 by rhmukundan Contributor Loading…
@rhmukundan
1
[data] fix: Preserve RNG state during synchronous loading area:data Dataset builders, preprocessing, and samplers bug Something isn't working needs-review PR is ready for code review and waiting on a reviewer
#5960 opened Sep 4, 2026 by yaoyu-33 Contributor Loading…
4
[ckpt] fix: Preserve ModelOpt state in low-memory saves area:ckpt Checkpoint conversion, loading, export, and save paths bug Something isn't working needs-more-tests Requires additional L0 and L1 test coverage before merge needs-review PR is ready for code review and waiting on a reviewer
#5956 opened Sep 4, 2026 by yaoyu-33 Contributor Loading…
3
fix(model): honor explicit meta-device disable area:model Model implementations and HF bridge logic bug Something isn't working community-request needs-review PR is ready for code review and waiting on a reviewer
#5952 opened Sep 3, 2026 by ZenAlexa Contributor Loading…
2
fix(model): fix(model): export correct MTP layer count for Nemotron-H area:model Model implementations and HF bridge logic bug Something isn't working community-request ready-to-merge PR is approved, current, and only waiting for CI to pass before merge
#5948 opened Sep 3, 2026 by odedovadia Loading…
5 tasks
2
fix(ckpt): initialize model parallel for builder loads area:ckpt Checkpoint conversion, loading, export, and save paths bug Something isn't working needs-more-tests Requires additional L0 and L1 test coverage before merge needs-review PR is ready for code review and waiting on a reviewer
#5942 opened Sep 3, 2026 by yaoyu-33 Contributor Loading…
6
Support 3D-MoE LoRA export for shared-outer routed-expert adapters area:peft Parameter-efficient fine-tuning (LoRA, adapters) community-request feature New capabilities, enhancements, or enablement work needs-more-tests Requires additional L0 and L1 test coverage before merge ready-to-merge PR is approved, current, and only waiting for CI to pass before merge
#5939 opened Sep 2, 2026 by HollowMan6 Contributor Loading…
2 of 5 tasks
12
[data] fix: Allow small datasets with cyclic loaders area:data Dataset builders, preprocessing, and samplers bug Something isn't working needs-review PR is ready for code review and waiting on a reviewer
#5937 opened Sep 2, 2026 by yaoyu-33 Contributor Loading…
7
cp: restrict HybridEP padding to THD on r0.6.0 area:training Training loop, callbacks, and runtime integration bug Something isn't working cherry-pick full-test-suite needs-more-tests Requires additional L0 and L1 test coverage before merge needs-review PR is ready for code review and waiting on a reviewer r0.6.0 Auto-cherrypick to release branch. Apply before merge; cherrypick happens after merge.
#5935 opened Sep 1, 2026 by svcnemo-autobot Contributor Loading…
5
fix(nemotron_omni): read and write exported modeling.py as UTF-8 area:ckpt Checkpoint conversion, loading, export, and save paths bug Something isn't working community-request needs-review PR is ready for code review and waiting on a reviewer
#5934 opened Sep 1, 2026 by MohammedAlkindi Loading…
1
fix(fsdp): drop stale MFSDP v2 guard rails for clip_grad, precision-aware optimizer, HSDP, and optimizer CUDA graphs area:training Training loop, callbacks, and runtime integration bug Something isn't working full-test-suite needs-more-tests Requires additional L0 and L1 test coverage before merge needs-review PR is ready for code review and waiting on a reviewer
#5933 opened Sep 1, 2026 by wujingyue Contributor Loading…
1 of 2 tasks
9
fix(peft): cover HybridStack recompute inputs community-request
#5918 opened Sep 1, 2026 by hershg Contributor • Draft
1
feat(conversion): build native MXFP8 export tasks area:ckpt Checkpoint conversion, loading, export, and save paths feature New capabilities, enhancements, or enablement work full-test-suite needs-more-tests Requires additional L0 and L1 test coverage before merge needs-review PR is ready for code review and waiting on a reviewer
#5917 opened Sep 1, 2026 by seonjinn Loading…
5
[peft] fix: scale grouped-expert LoRA at the bottleneck, not the output area:peft Parameter-efficient fine-tuning (LoRA, adapters) bug Something isn't working needs-more-tests Requires additional L0 and L1 test coverage before merge needs-review PR is ready for code review and waiting on a reviewer
#5913 opened Aug 31, 2026 by cuichenx Contributor Loading…
1
chore(docker): update base image to nvcr.io/nvidia/pytorch:26.08-py3 area:build Dependencies, packaging, images, and environment setup ci CI, automation, test queue, or workflow infrastructure work full-test-suite needs-more-tests Requires additional L0 and L1 test coverage before merge needs-review PR is ready for code review and waiting on a reviewer
#5911 opened Aug 31, 2026 by balasaajay Contributor Loading…
5 tasks
chore: AUT-2155 bump Megatron Core nightly pins area:build Dependencies, packaging, images, and environment setup ci CI, automation, test queue, or workflow infrastructure work full-test-suite needs-more-tests Requires additional L0 and L1 test coverage before merge needs-review PR is ready for code review and waiting on a reviewer
#5897 opened Aug 30, 2026 by svcnemo-autobot Contributor Loading…
1
test: AUT-2155 validate Megatron Core dev compatibility area:ci ci CI, automation, test queue, or workflow infrastructure work dummy-pr Filed this PR to run tests, not going to merge full-test-suite needs-more-tests Requires additional L0 and L1 test coverage before merge
#5896 opened Aug 30, 2026 by svcnemo-autobot Contributor Loading…
2
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