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https://issues.apache.org/jira/browse/MAHOUT-1938?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15884500#comment-15884500
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ASF GitHub Bot commented on MAHOUT-1938:
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Github user andrewpalumbo commented on the issue:
https://github.com/apache/mahout/pull/284
Could someone with an Intel chipset pre-Haswell (most i-7s) test this to
ensure that it does have a fallback to non-avx2 instruction sets?
> When building on linux, haswell properties are not working.
> -----------------------------------------------------------
>
> Key: MAHOUT-1938
> URL: https://issues.apache.org/jira/browse/MAHOUT-1938
> Project: Mahout
> Issue Type: Bug
> Affects Versions: 0.12.1
> Reporter: Andrew Palumbo
> Assignee: Andrew Palumbo
> Priority: Blocker
> Fix For: 0.13.0
>
>
> got a failure when building on linux with haswell.properties:
> {code}
> Warning: Could not load platform properties for class
> org.apache.mahout.viennacl.openmp.OMPMMul$
> Generating
> /vol0/mahout/viennacl-omp/target/classes/org/apache/mahout/viennacl/openmp/javacpp/jniViennaCL.cpp
> Compiling
> /vol0/mahout/viennacl-omp/target/classes/org/apache/mahout/viennacl/openmp/javacpp/linux-haswell/libjniViennaCL.so
> g++ -I/usr/include/viennacl
> -I/usr/lib/jvm/java-1.7.0-openjdk-1.7.0.121.x86_64/include
> -I/usr/lib/jvm/java-1.7.0-openjdk-1.7.0.121.x86_64/include/linux
> /vol0/mahout/viennacl-omp/target/classes/org/apache/mahout/viennacl/openmp/javacpp/jniViennaCL.cpp
> -msse3 -ffast-math -fopenmp -fpermissive -Wl,-rpath,$ORIGIN/
> -Wl,-z,noexecstack -Wl,-Bsymbolic -march=haswell -m64 -Wall -O3 -fPIC -shared
> -s -o libjniViennaCL.so -lOpenCL
> /vol0/mahout/viennacl-omp/target/classes/org/apache/mahout/viennacl/openmp/javacpp/jniViennaCL.cpp:1:0:
> error: bad value (haswell) for -march= switch
> // Generated by JavaCPP version 1.2.4: DO NOT EDIT THIS FILE
> ^
> [INFO]
> ------------------------------------------------------------------------
> [INFO] BUILD FAILURE
> [INFO]
> ------------------------------------------------------------------------
> [INFO] Total time: 14.721 s
> {code}
> Need to fix
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