[SYSTEMDS-3824] Decompressing Transpose

[Baunsgaard]

Sebastian Baunsgaard [email protected] introduced a new CLALib for Reorg, specifically Transpose

e-strauss [email protected] applied minor changes:

• a manual rewrite in bultin kmeans script to use argmin (reduced runtime by 18%)
• added new decompressing transpose to DenseBlock from SparseBlock for ColGroupDDC
• fixed bug in sparsity evaluation in decompressed transposed (switch nrow w/ ncol)
• minor bug fix in regarding the cached decompression count
• fixed ctable with seq fuse rewrite fused ctable with given output dim (disaled: performance decrease, need to fix it first)
• fixed null handling in fused seq ctable
• fixed tests which passed for the wrong reason

[codecov]

Codecov Report

Attention: Patch coverage is 43.38235% with 77 lines in your changes missing coverage. Please review.

Project coverage is 72.39%. Comparing base (fd1ba7c) to head (dc3947a).
Report is 2 commits behind head on main.

Files with missing lines	Patch %	Lines
...apache/sysds/runtime/compress/lib/CLALibReorg.java	14.75%	48 Missing and 4 partials ⚠️
...e/sysds/runtime/compress/colgroup/ColGroupDDC.java	0.00%	13 Missing ⚠️
...ache/sysds/runtime/compress/lib/CLALibRexpand.java	90.00%	1 Missing and 2 partials ⚠️
...time/instructions/cp/CompressionCPInstruction.java	0.00%	3 Missing ⚠️
...s/runtime/instructions/cp/CtableCPInstruction.java	62.50%	1 Missing and 2 partials ⚠️
...ache/sysds/runtime/matrix/data/LibMatrixReorg.java	89.47%	0 Missing and 2 partials ⚠️
.../sysds/runtime/compress/CompressedMatrixBlock.java	50.00%	1 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##               main    #2217      +/-   ##
============================================
- Coverage     72.40%   72.39%   -0.02%     
- Complexity    45368    45384      +16     
============================================
  Files          1467     1468       +1     
  Lines        170710   170790      +80     
  Branches      33286    33303      +17     
============================================
+ Hits         123603   123638      +35     
- Misses        37705    37754      +49     
+ Partials       9402     9398       -4     

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