gghsu opened a new pull request, #2052: URL: https://github.com/apache/systemds/pull/2052
In this pull request, I have done below changes 1. I add permutation-matrix as second method for raGroupby, for a more efficient raGroupby which constructs a permutation matrix (0/1 matrix) in order to copy relevant tuples with a single matrix multiplication followed by a reshape to bring the matrix into the form of one row per group. I also test multiple methods at the the same time in the runRaGroupbyTest function. 2. I improve the sort-merge function in raJoin by avoid iterating over rows. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: dev-unsubscr...@systemds.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org
