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Posted to issues@mxnet.apache.org by "Marco de Abreu (JIRA)" <ji...@apache.org> on 2018/03/14 15:52:00 UTC

[jira] [Assigned] (MXNET-99) P3 (Nvidia V100) not supported by CUDA8

     [ https://issues.apache.org/jira/browse/MXNET-99?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Marco de Abreu reassigned MXNET-99:
-----------------------------------

    Assignee: Marco de Abreu

> P3 (Nvidia V100) not supported by CUDA8
> ---------------------------------------
>
>                 Key: MXNET-99
>                 URL: https://issues.apache.org/jira/browse/MXNET-99
>             Project: Apache MXNet
>          Issue Type: Bug
>            Reporter: Marco de Abreu
>            Assignee: Marco de Abreu
>            Priority: Major
>
> During my tests to upgrade our CI for [Quantization support|[https://github.com/apache/incubator-mxnet/pull/9552],] I have noticed that NVCC supplied with CUDA 8 does not support the GPU architecture 7.0, which represents Volta GPUs used in AWS P3 instances. Our Makefile automatically removes this architecture in [https://github.com/apache/incubator-mxnet/blob/master/Makefile#L280,] which is fine since it would crash otherwise.
>  
> This causes pre-compilation to generate incompatible PTX binaries and thus causing issues during runtime - the JIT compiler has to kick in and libraries like CuBLAS report CUBLAS_STATUS_ARCH_MISMATCH. 
>  



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