Dmitriy Lyubimov created MAHOUT-1738:
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Summary: 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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