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https://issues.apache.org/jira/browse/MAHOUT-1885?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15567550#comment-15567550
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ASF GitHub Bot commented on MAHOUT-1885:
----------------------------------------
Github user dlyubimov commented on a diff in the pull request:
https://github.com/apache/mahout/pull/261#discussion_r82934625
--- Diff:
viennacl-omp/src/main/scala/org/apache/mahout/viennacl/openmp/OMPMMul.scala ---
@@ -0,0 +1,448 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.mahout.viennacl.openmp
+
+import org.apache.mahout.logging._
+import org.apache.mahout.math
+import org.apache.mahout.math._
+import org.apache.mahout.math.flavor.{BackEnum, TraversingStructureEnum}
+import org.apache.mahout.math.function.Functions
+import org.apache.mahout.math.scalabindings.RLikeOps._
+import org.apache.mahout.math.scalabindings._
+import org.apache.mahout.viennacl.openmp.javacpp.Functions._
+import org.apache.mahout.viennacl.openmp.javacpp.LinalgFunctions._
+import org.apache.mahout.viennacl.openmp.javacpp.{CompressedMatrix,
Context, DenseRowMatrix}
+
+import scala.collection.JavaConversions._
+
+object OMPMMul extends MMBinaryFunc {
--- End diff --
ok so likely it is WIP again, but we wanted a cache here. So i think on one
hand it needs a specific proxy matrix type; on the other, it doesn't need all
these mappings based on argument orientation.
On the latter point in particualr, since we are going to a native solver,
we are rewriting (copyign) data anyway, so we already have ok'd the fact that
rewrite is less expensive than mmul itself.
Many solvers will accept whatever orientation of arguments (can't
immediately remember if it is the case with VCL OMP), and even if they do not,
we just simply can copy it to whatever orientation is needed.
so i think all this matching eventually would be irrelevant really.
> Inital Implementation of VCL Bindings
> -------------------------------------
>
> Key: MAHOUT-1885
> URL: https://issues.apache.org/jira/browse/MAHOUT-1885
> Project: Mahout
> Issue Type: Improvement
> Components: Math
> Affects Versions: 0.12.2
> Reporter: Andrew Palumbo
> Assignee: Andrew Palumbo
> Fix For: 0.13.0
>
>
> Push a working experimental branch of VCL bindings into master. There is
> still a lot of work to be done. All tests are passing, At the moment there
> am opening this JIRA mostly to get a number for PR and to test profiles
> against on travis.
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