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[GH-ISSUE #172] [Bug] cu128 test_bf16 error #99

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opened 2026-10-26 21:12:32 +00:00 by bsakaguchi · 5 comments
bsakaguchi commented 2026-10-26 21:12:32 +00:00
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Originally created by @FlamingoPg on GitHub (Aug 26, 2025).
Original GitHub issue: https://github.com/deepseek-ai/DeepGEMM/issues/172

I build with B200 cu128, test_bf16 failed:

➜  DeepGEMM git:(main) python3 /sgl-workspace/DeepGEMM/tests/test_bf16.py                                           
Library path:
 > ['/usr/local/lib/python3.12/dist-packages/deep_gemm']

Testing GEMM:
Warning: please use at least NVCC 12.9 for the best DeepGEMM performanceNVCC compilation failed: nvcc fatal   : Unsupported gpu architecture 'sm_100f'

Traceback (most recent call last):
  File "/sgl-workspace/DeepGEMM/tests/test_bf16.py", line 123, in <module>
    test_gemm()
  File "/sgl-workspace/DeepGEMM/tests/test_bf16.py", line 30, in test_gemm
    getattr(deep_gemm, func_name)(a, b, d, c=c)
RuntimeError: Assertion error (csrc/apis/../jit_kernels/impls/../../jit/compiler.hpp:176): false and "NVCC compilation failed"
Originally created by @FlamingoPg on GitHub (Aug 26, 2025). Original GitHub issue: https://github.com/deepseek-ai/DeepGEMM/issues/172 I build with B200 cu128, test_bf16 failed: ```bash ➜ DeepGEMM git:(main) python3 /sgl-workspace/DeepGEMM/tests/test_bf16.py Library path: > ['/usr/local/lib/python3.12/dist-packages/deep_gemm'] Testing GEMM: Warning: please use at least NVCC 12.9 for the best DeepGEMM performanceNVCC compilation failed: nvcc fatal : Unsupported gpu architecture 'sm_100f' Traceback (most recent call last): File "/sgl-workspace/DeepGEMM/tests/test_bf16.py", line 123, in <module> test_gemm() File "/sgl-workspace/DeepGEMM/tests/test_bf16.py", line 30, in test_gemm getattr(deep_gemm, func_name)(a, b, d, c=c) RuntimeError: Assertion error (csrc/apis/../jit_kernels/impls/../../jit/compiler.hpp:176): false and "NVCC compilation failed" ```
bsakaguchi commented 2026-10-26 21:12:33 +00:00
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@FlamingoPg commented on GitHub (Aug 26, 2025):

I guess this PR break https://github.com/deepseek-ai/DeepGEMM/pull/157

<!-- gh-comment-id:3225142223 --> @FlamingoPg commented on GitHub (Aug 26, 2025): I guess this PR break https://github.com/deepseek-ai/DeepGEMM/pull/157
bsakaguchi commented 2026-10-26 21:12:33 +00:00
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@FlamingoPg commented on GitHub (Aug 26, 2025):

test_fp8 failed too.

<!-- gh-comment-id:3225143404 --> @FlamingoPg commented on GitHub (Aug 26, 2025): test_fp8 failed too.
bsakaguchi commented 2026-10-26 21:12:34 +00:00
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@zhyncs commented on GitHub (Aug 26, 2025):

@LyricZhao May you help take a look? Thanks!

<!-- gh-comment-id:3225168682 --> @zhyncs commented on GitHub (Aug 26, 2025): @LyricZhao May you help take a look? Thanks!
bsakaguchi commented 2026-10-26 21:12:34 +00:00
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@FlamingoPg commented on GitHub (Aug 26, 2025):

I tried to fix it lol, https://github.com/deepseek-ai/DeepGEMM/pull/173

<!-- gh-comment-id:3225285565 --> @FlamingoPg commented on GitHub (Aug 26, 2025): I tried to fix it lol, https://github.com/deepseek-ai/DeepGEMM/pull/173
bsakaguchi commented 2026-10-26 21:12:35 +00:00
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@LyricZhao commented on GitHub (Aug 27, 2025):

Thanks! Closing it now.

<!-- gh-comment-id:3226398718 --> @LyricZhao commented on GitHub (Aug 27, 2025): Thanks! Closing it now.
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