[GitHub] [systemds] Baunsgaard opened a new pull request #1173: [SYSTEMDS-2811] Compressed slice

[GitBox <gi...@apache.org>]

Baunsgaard opened a new pull request #1173:
URL: https://github.com/apache/systemds/pull/1173


   This PR contains an addition to slice compressed, that allows the slices not to decompress the entire matrix, but only the sliced parts. The implementation handle the following cases:
   
   - single value slice, is replaced by a getValue() that is placed into a new matrix output.
   - Row slices, that only decompress the rows selected
   - Column slices, that maintain compressed outputs.
   - Selective row/col slices that leverage first the column slice followed by a decompressing row slice.
   
   A further improvement would be to maintain compression if the Row slice is large enough to do so. But this would require further work.


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[GitHub] [systemds] Baunsgaard closed pull request #1173: [SYSTEMDS-2811] Compressed slice

[GitBox <gi...@apache.org>]

Baunsgaard closed pull request #1173:
URL: https://github.com/apache/systemds/pull/1173


   


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