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Posted to dev@mahout.apache.org by "Dmitriy Lyubimov (JIRA)" <ji...@apache.org> on 2015/06/18 21:26:04 UTC
[jira] [Updated] (MAHOUT-1738) Flavor support for H2o in-core
matrices
[ https://issues.apache.org/jira/browse/MAHOUT-1738?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Dmitriy Lyubimov updated MAHOUT-1738:
-------------------------------------
Sprint: Sprint 1
> Flavor support for H2o in-core matrices
> ---------------------------------------
>
> Key: MAHOUT-1738
> URL: https://issues.apache.org/jira/browse/MAHOUT-1738
> Project: Mahout
> Issue Type: Improvement
> Reporter: Dmitriy Lyubimov
> Assignee: Anand Avati
> Fix For: 0.10.2
>
>
> Could be as simple as initializing with one of standard flavors.
> Feel free to enlist me for help.
> E.g. %*% requires it :
> - ddsvd - naive - q=1 *** FAILED ***
> java.lang.RuntimeException: water.DException$DistributedException: from /130.35.26.220:54321; by class org.apache.mahout.h2obindings.ops.MapBlock$1MRTaskBMF; class java.lang.UnsupportedOperationException: Flavor support not implemented for this matrix.
> at water.MRTask.getResult(MRTask.java:263)
> at water.MRTask.doAll(MRTask.java:218)
> at water.MRTask.doAll(MRTask.java:215)
> at org.apache.mahout.h2obindings.ops.MapBlock.exec(MapBlock.java:111)
> at org.apache.mahout.h2obindings.H2OEngine$.tr2phys(H2OEngine.scala:111)
> at org.apache.mahout.h2obindings.H2OEngine$.toPhysical(H2OEngine.scala:89)
> at org.apache.mahout.math.drm.logical.CheckpointAction.checkpoint(CheckpointAction.scala:41)
> at org.apache.mahout.math.decompositions.DSSVD$.dssvd(DSSVD.scala:49)
> at org.apache.mahout.math.decompositions.package$.dssvd(package.scala:87)
> at org.apache.mahout.math.decompositions.DistributedDecompositionsSuiteBase$class.dssvdNaive(DistributedDecompositionsSuiteBase.scala:123)
> ...
> Cause: water.DException$DistributedException: from /130.35.26.220:54321; by class org.apache.mahout.h2obindings.ops.MapBlock$1MRTaskBMF; class java.lang.UnsupportedOperationException: Flavor support not implemented for this matrix.
> at org.apache.mahout.math.AbstractMatrix.getFlavor(AbstractMatrix.java:827)
> at org.apache.mahout.math.scalabindings.MMul$.apply(MMul.scala:37)
> at org.apache.mahout.math.scalabindings.RLikeMatrixOps.$percent$times$percent(RLikeMatrixOps.scala:27)
> at org.apache.mahout.math.decompositions.DSSVD$$anonfun$1.apply(DSSVD.scala:47)
> at org.apache.mahout.math.decompositions.DSSVD$$anonfun$1.apply(DSSVD.scala:45)
> at org.apache.mahout.h2obindings.ops.MapBlockHelper$.exec(MapBlockHelper.scala:47)
> at org.apache.mahout.h2obindings.ops.MapBlockHelper.exec(MapBlockHelper.scala)
> at org.apache.mahout.h2obindings.ops.MapBlock$1MRTaskBMF.map(MapBlock.java:105)
> at water.MRTask.compute2(MRTask.java:428)
> at water.MRTask.compute2(MRTask.java:372)
> ...
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