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Pull requests: NVIDIA-NeMo/Megatron-Bridge

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Pull requests list

[build] chore: bump MCore main to a5cdf57 area:build Dependencies, packaging, images, and environment setup ci CI, automation, test queue, or workflow infrastructure work needs-review PR is ready for code review and waiting on a reviewer
#5940 opened Sep 3, 2026 by yaoyu-33 Contributor Loading…
2 tasks
4
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 needs-review PR is ready for code review and waiting on a reviewer
#5939 opened Sep 2, 2026 by HollowMan6 Contributor Loading…
2 of 5 tasks
8
[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…
3
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
6
cp: fix(training): restrict HybridEP padding to THD (#5915) into 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. Run CICD
#5931 opened Sep 1, 2026 by cuichenx Contributor Loading…
fix(training): validate Gloo for memory-efficient checkpoints area:ckpt Checkpoint conversion, loading, export, and save paths bug Something isn't working community-request 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
#5927 opened Sep 1, 2026 by nayopu Contributor Loading…
2
fix(model): preserve CPU initialization when unspecified 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
#5925 opened Sep 1, 2026 by ZenAlexa Loading…
4 tasks done
1
7
cp: feat(perf): add Nemotron 3.5 Lightning B200 and B300 recipes (5793) into r0.6.0 area:perf Performance optimizations and benchmarking cherry-pick 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 r0.6.0 Auto-cherrypick to release branch. Apply before merge; cherrypick happens after merge. Run CICD
#5921 opened Sep 1, 2026 by svcnvidia-nemo-ci Contributor Loading…
3
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…
1
[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
fix(peft): reduce long-context LoRA peak memory area:peft Parameter-efficient fine-tuning (LoRA, adapters) bug Something isn't working community-request 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
#5906 opened Aug 31, 2026 by hershg Contributor Loading…
8
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
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
#5898 opened Aug 30, 2026 by svcnemo-autobot Contributor Loading…
14
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
#5899 opened Aug 30, 2026 by svcnemo-autobot Contributor Loading…
13
[recipe] fix: allocate Qwen3.5-VL 397B pipeline layers area:recipe Training recipes and launch configs 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
#5884 opened Aug 29, 2026 by yaoyu-33 Contributor Loading…
4
cp: docs(perf): note DeepSeek V4 dev branch (#5876) into r0.6.0 area:perf Performance optimizations and benchmarking cherry-pick docs Documentation-only updates or documentation debt docs-only With great power comes great responsibility. 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. Run CICD
#5879 opened Aug 29, 2026 by cuichenx Contributor Loading…
4 tasks done
fix(data): chunked materialization with fork-based parallelism area:data Dataset builders, preprocessing, and samplers bug Something isn't working community-request ready-to-merge PR is approved, current, and only waiting for CI to pass before merge
#5869 opened Aug 28, 2026 by kenkenpa2126 Contributor Loading…
4 of 5 tasks
6
feat(ckpt): support MXFP8 parameter export area:ckpt Checkpoint conversion, loading, export, and save paths community-request feature New capabilities, enhancements, or enablement work full-test-suite needs-more-tests Requires additional L0 and L1 test coverage before merge waiting-on-customer Waiting on the original author to respond
#5868 opened Aug 28, 2026 by yuukidach Loading…
4 of 5 tasks
8
[2/2] refactor(recipe): unify Qwen3 235B performance and convergence configs
#5864 opened Aug 28, 2026 by yaoyu-33 Contributor • Draft
3 of 4 tasks
2
fix(ckpt): derive checkpoint replica_id from the gtp_remat-inclusive DP group area:ckpt Checkpoint conversion, loading, export, and save paths bug Something isn't working needs-review PR is ready for code review and waiting on a reviewer
#5862 opened Aug 28, 2026 by shanmugamr1992 • Draft
1
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