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Posted to commits@tvm.apache.org by GitBox <gi...@apache.org> on 2020/12/31 05:32:47 UTC

[GitHub] [tvm] Laurawly opened a new pull request #7187: [Fix] Tensor core type issue for dense

Laurawly opened a new pull request #7187:
URL: https://github.com/apache/tvm/pull/7187


   As mentioned in PR #7146, previous tensor core code lacks type check and this PR is trying to fix that.
   cc @jcf94 @merrymercy @Meteorix 
   


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[GitHub] [tvm] merrymercy removed a comment on pull request #7187: [Fix] Tensor core type issue for dense

Posted by GitBox <gi...@apache.org>.
merrymercy removed a comment on pull request #7187:
URL: https://github.com/apache/tvm/pull/7187#issuecomment-752963716


   Do we allow `data.dtype == "float32"`?
   The problem comes from this downcast, which may cause accuracy problem.
   https://github.com/apache/tvm/blob/c02c9c528f91f9be3967b7d9ef9f1847f533590b/python/tvm/topi/cuda/dense_tensorcore.py#L72-L73


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[GitHub] [tvm] merrymercy edited a comment on pull request #7187: [Fix] Tensor core type issue for dense

Posted by GitBox <gi...@apache.org>.
merrymercy edited a comment on pull request #7187:
URL: https://github.com/apache/tvm/pull/7187#issuecomment-752963716


   Do we allow `data.dtype == "float32"`?
   The problem comes from this downcast, which may cause accuracy problem.
   https://github.com/apache/tvm/blob/c02c9c528f91f9be3967b7d9ef9f1847f533590b/python/tvm/topi/cuda/dense_tensorcore.py#L72-L73


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[GitHub] [tvm] merrymercy edited a comment on pull request #7187: [Fix] Tensor core type issue for dense

Posted by GitBox <gi...@apache.org>.
merrymercy edited a comment on pull request #7187:
URL: https://github.com/apache/tvm/pull/7187#issuecomment-752963716


   Should we check `data.dtype == "float16" and weight.dtype == "float16"`?
   The problem comes from this downcast, which may cause accuracy problem.
   https://github.com/apache/tvm/blob/c02c9c528f91f9be3967b7d9ef9f1847f533590b/python/tvm/topi/cuda/dense_tensorcore.py#L72-L73


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[GitHub] [tvm] merrymercy commented on pull request #7187: [Fix] Tensor core type issue for dense

Posted by GitBox <gi...@apache.org>.
merrymercy commented on pull request #7187:
URL: https://github.com/apache/tvm/pull/7187#issuecomment-752963716


   Should we check `data.dtype == "float16" and weight.dtype == "float16"`?
   The problem comes from this downcast  
   https://github.com/apache/tvm/blob/c02c9c528f91f9be3967b7d9ef9f1847f533590b/python/tvm/topi/cuda/dense_tensorcore.py#L72-L73


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[GitHub] [tvm] Laurawly commented on pull request #7187: [Fix] Tensor core type issue for dense

Posted by GitBox <gi...@apache.org>.
Laurawly commented on pull request #7187:
URL: https://github.com/apache/tvm/pull/7187#issuecomment-753026936


   > Do we allow `data.dtype == "float32"`?
   > The problem comes from this downcast, which may cause accuracy problem.
   > https://github.com/apache/tvm/blob/c02c9c528f91f9be3967b7d9ef9f1847f533590b/python/tvm/topi/cuda/dense_tensorcore.py#L72-L73
   
   Good catch, just removed it.


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[GitHub] [tvm] merrymercy commented on pull request #7187: [Fix] Tensor core type issue for dense

Posted by GitBox <gi...@apache.org>.
merrymercy commented on pull request #7187:
URL: https://github.com/apache/tvm/pull/7187#issuecomment-752964279


   Do we allow `data.dtype == "float32"`?
   The problem comes from this downcast, which may cause accuracy problem.
   https://github.com/apache/tvm/blob/c02c9c528f91f9be3967b7d9ef9f1847f533590b/python/tvm/topi/cuda/dense_tensorcore.py#L72-L73


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[GitHub] [tvm] junrushao1994 merged pull request #7187: [Fix] Tensor core type issue for dense

Posted by GitBox <gi...@apache.org>.
junrushao1994 merged pull request #7187:
URL: https://github.com/apache/tvm/pull/7187


   


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