Matthias Boehm created SYSTEMML-1754:
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Summary: Performance removeEmpty w/ shallow copy if unmodified
Key: SYSTEMML-1754
URL: https://issues.apache.org/jira/browse/SYSTEMML-1754
Project: SystemML
Issue Type: Task
Reporter: Matthias Boehm
Often removeEmpty is used to guard against special cases with entirely empty
rows or columns. In case of no removed rows or columns the full copy into the
output is unnecessarily inefficient. This task aims to modify removeEmpty
rows/cols for both dense and sparse matrices to leverage a shallow copy if
determined output dimensions match the input dimensions.
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