Matthias Boehm created SYSTEMML-1547:
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Summary: Cache-conscious post processing tsmm
Key: SYSTEMML-1547
URL: https://issues.apache.org/jira/browse/SYSTEMML-1547
Project: SystemML
Issue Type: Task
Reporter: Matthias Boehm
For scenarios like tsmm outer products t(X) %*% X, where X is a row vector, the
post-processing in terms of (1) copying the upper to lower triangle, and (2)
nnz recomputation significantly contribute to the execution time.
This task aims at a cache-conscious copy of upper to lower triangles similar to
dense-dense transpose as well as fusing the nnz recompuation into either the
computation or copy operation.
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