[jira] [Commented] (SYSTEMML-2187) Double check new single-precision native conv2d on different platforms

["Matthias Boehm (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SYSTEMML-2187?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16403907#comment-16403907 ] 

Matthias Boehm commented on SYSTEMML-2187:
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After closer inspection, I was able to reproduce the reported issue of incorrect results with Intel MKL for single-precision conv2d_bias_add (which calls the MKL-specific {{dnnExecute_F32}}). Interestingly, this issue does not show up with OpenBLAS (single/double precision), or MKL double precision (which calls {{dnnExecute_F64}}).

Most importantly, this issue only shows up on a Xeon Gold 6138 (Skylake with AVX 512), while it works fine on older architectures without AVX 512 such as a Xeon E5-2440.

> Double check new single-precision native conv2d on different platforms 
> -----------------------------------------------------------------------
>
>                 Key: SYSTEMML-2187
>                 URL: https://issues.apache.org/jira/browse/SYSTEMML-2187
>             Project: SystemML
>          Issue Type: Sub-task
>            Reporter: Matthias Boehm
>            Assignee: Matthias Boehm
>            Priority: Major
>             Fix For: SystemML 1.1
>
>




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