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https://issues.apache.org/jira/browse/MAHOUT-1934?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15850887#comment-15850887
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ASF GitHub Bot commented on MAHOUT-1934:
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GitHub user andrewpalumbo opened a pull request:
https://github.com/apache/mahout/pull/273
MAHOUT-1934: OpenMP jars aren't being picked up
add in dependency-reduced.jar to put javacpp jars on executor classpath.
Hack for now. use simple wildcard as well.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/andrewpalumbo/mahout MAHOUT-1934b
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/mahout/pull/273.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #273
----
commit 892f570b879ccdedd59ad03eb6690da661b90f2c
Author: Andrew Palumbo <apalu...@apache.org>
Date: 2017-02-03T01:29:15Z
MAHOUT-1934: OpenMP jars aren't being picked up add in
dependency-reduced.jar to put javacpp jars on executor classpath. Hack for now.
----
> OpenMP jars aren't being picked up in distributed Spark
> -------------------------------------------------------
>
> Key: MAHOUT-1934
> URL: https://issues.apache.org/jira/browse/MAHOUT-1934
> Project: Mahout
> Issue Type: Improvement
> Affects Versions: 0.13.0
> Reporter: Trevor Grant
> Assignee: Andrew Palumbo
> Priority: Blocker
> Fix For: 0.13.0
>
>
> When executing the following:
> ```
> import org.apache.mahout.math.decompositions._
> drmX.checkpoint()
> val (U, V, s) = dspca(drmX, k = 30, q = 1)
> ```
> I see the following:
> ```
> import org.apache.mahout.math.decompositions._
> res1: org.apache.mahout.math.drm.CheckpointedDrm[Int] =
> org.apache.mahout.sparkbindings.drm.CheckpointedDrmSpark@2e8dd198
> [INFO] Creating org.apache.mahout.viennacl.opencl.GPUMMul solver
> [WARN] Unable to create class GPUMMul: attempting OpenMP version
> [INFO] Creating org.apache.mahout.viennacl.openmp.OMPMMul solver
> org.apache.mahout.viennacl.openmp.OMPMMul$
> [INFO] Unable to create class OMPMMul: falling back to java version
> drmReduxX: org.apache.mahout.math.drm.DrmLike[Int] =
> OpMapBlock(OpTimesRightMatrix(org.apache.mahout.s...
> ```
> The code executes fine, but it seems the OpenMP is not getting picked up.
> To be clear I build these jars with -Pviennacl-omp
> I the issue persists through other operations as well. I am running on a 3
> node Yarn cluster/ spark 1.6.3
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