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Commits on Apr 7, 2018

• [SYSTEMML-2237] Improved spark reshape of ultra-sparse matrices

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• [SYSTEMML-2236] Improved spark cpmm (partitioning-preserving case)

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Commits on Apr 6, 2018

• [HOTFIX][SYSTEMML-2235] Fix bufferpool serialization compressed blocks

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• [SYSTEMML-1626] Fix compiler/runtime dimension checks for solve

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Commits on Apr 5, 2018

• [SYSTEMML-2234] Fix buffer pool memory/file leak (missing cleanup)

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Commits on Apr 4, 2018

• [HOTFIX] Fix corrupted IQM and MEDIAN hops construction

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• [MINOR] Remove redundancy from builtin function hop construction

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Commits on Apr 3, 2018

• [SYSTEMML-2229] Add missing support for rowProds/colProds aggregates

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Commits on Apr 2, 2018

• [HOTFIX] Fix invalid assignments in ID3 to new builtin constants

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• [HOTFIX] Fix builtin constants (consistency w/ R, side effects)

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• [SYSTEMML-2078] Use new builtin constants in various algorithms/tests

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• [SYSTEMML-2078] Add support for builtin constants (PI, INF, NaN)

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Commits on Apr 1, 2018

• [SYSTEMML-1738] Fix various stream resource leaks via auto closing

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  j143

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• [MINOR] Additional tests for row/col means/vars and matrix reshapes

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• [SYSTEMML-2225] Fix reblock ultra-sparse, incl mem efficiency read

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Commits on Mar 31, 2018

• [SYSTEMML-2224] Remove unnecessary fields from matrix blocks

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• [HOTFIX][SYSTEMML-2219] Fix ultra-sparse/ultra-sparse matrix multiply

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• [SYSTEMML-2223] Repartition ultra-sparse matrices to preferred #parts

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• [SYSTEMML-2222] Empty block filtering for spark cpmm, rshape, nnz

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• [SYSTEMML-2221] Performance checkpointing of ultra-sparse matrices

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• [SYSTEMML-2220] Performance ultra-sparse block matrix mult operations

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• [SYSTEMML-2218] Improved spark mapmm (avoid parallelize-repartition)

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Commits on Mar 30, 2018

• [SYSTEMML-2217] Fix OOM read sparse textcell matrix w/ unknown nnz

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Commits on Mar 29, 2018

• [SYSTEMML-2016] Performance multi-threaded matrix multiply thresholds

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Commits on Mar 28, 2018

• [HOTFIX] Fix case-sensitivity of lower/upper.tri test names

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• [SYSTEMML-2214] New builtin functions lower.tri and upper.tri (CP/SP)

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Commits on Mar 27, 2018

• [MINOR] Cleanup unnecessary operators and instruction types

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• [SYSTEMML-2210] Improved exists builtin function (data-dep ordering)

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Commits on Mar 26, 2018

• [HOTFIX] Fix tolerance in compression par unary aggregate tests

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• [SYSTEMML-2213] Removed unused file-based removeEmpty operations

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• [SYSTEMML-2210] New exists builtin function to check existence of vars

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• [SYSTEMML-2212] Performance multi-threaded unary aggregates

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Commits on Mar 25, 2018

• [SYSTEMML-616] Simplify JMLC/DMLScript APIs (unnecessary exceptions)

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• [SYSTEMML-2207] New optional 'secondorder' arg for external functions

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• [SYSTEMML-2191] Cleanup exception hierarchy and handling, part 3

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