[https://nvbugs/5597647][fix] Fix MNNVL Allreduce accuracy issue on Hopper #8612
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📝 WalkthroughWalkthroughThe changes expand CUDA inline assembly support in mnnvlTwoShotAllreduceKernels to lower GPU architectures (from 700+) by adopting release-variant intrinsics, and enable a previously-skipped test in the mnnvl_allreduce test suite. Changes
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cpp/tensorrt_llm/kernels/communicationKernels/mnnvlTwoShotAllreduceKernels.cu(1 hunks)tests/unittest/_torch/multi_gpu/test_mnnvl_allreduce.py(0 hunks)
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- tests/unittest/_torch/multi_gpu/test_mnnvl_allreduce.py
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Signed-off-by: Shiyu Li <shili@nvidia.com>
Signed-off-by: Shiyu Li <shili@nvidia.com>
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…opper (NVIDIA#8612) Signed-off-by: Shiyu Li <shili@nvidia.com>
…opper (NVIDIA#8612) Signed-off-by: Shiyu Li <shili@nvidia.com> Signed-off-by: Mike Iovine <6158008+mikeiovine@users.noreply.github.com>
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Summary by CodeRabbit
Bug Fixes
Tests
Description
This PR fixed the accuracy issue in MNNVL Allreduce kernel on Hopper caused by wrong memory semantic used in the Hopper branch.
Test Coverage
tests/unittest/_torch/multi_gpu/test_mnnvl_allreduce.py
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