j143 commented on code in PR #2290:
URL: https://github.com/apache/systemds/pull/2290#discussion_r2212198696
##########
src/main/java/org/apache/sysds/runtime/matrix/data/LibMatrixReorg.java:
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@@ -389,10 +393,78 @@ public static MatrixBlock rev( MatrixBlock in,
MatrixBlock out ) {
return out;
}
+ public static MatrixBlock rev(MatrixBlock in, MatrixBlock out, int k) {
+ if (k <= 1 || in.isEmptyBlock(false)) {
Review Comment:
I have added something like 3000_000 in the hop for now, for the tests to
trigger the multi-thread.
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