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Posted to jira@arrow.apache.org by "Wes McKinney (Jira)" <ji...@apache.org> on 2020/08/12 17:30:00 UTC
[jira] [Closed] (ARROW-9668) [C++]Got AVX512 method compiled in,
but AVX512 instructions is not supported
[ https://issues.apache.org/jira/browse/ARROW-9668?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Wes McKinney closed ARROW-9668.
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> [C++]Got AVX512 method compiled in, but AVX512 instructions is not supported
> ----------------------------------------------------------------------------
>
> Key: ARROW-9668
> URL: https://issues.apache.org/jira/browse/ARROW-9668
> Project: Apache Arrow
> Issue Type: Bug
> Components: C++
> Environment: Centos, c++ (GCC) 7.4.0
> Reporter: Dongxiao Song
> Priority: Major
>
> When using garrow_numeric_array_compare() to compare arrow array, I got
> arrow::compute::aggregate::AddSumAvx512AggKernels() called.
> But my compute doesn't support avx512 instructions set, so it crashed and reported:
> Program terminated with signal 4, Illegal instruction.
> #0 0x00007efc082fe1d7 in arrow::compute::aggregate::AddSumAvx512AggKernels(arrow::compute::ScalarAggregateFunction*) () from /usr/local/lib64/libarrow.so.200
>
> Is this a bug?
> I found that CXX_SUPPORTS_AVX512 flag is decided by whether compiler could compile with
> -march=skylake-avx512 -mbmi2. In my opinion, these options is just tell the compiler try to compile with avx512, if not supported, it doesn't complain anything.
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