[SYSTEMDS-3524] Add multi-threaded unique in LibMatrixSketch - #2542

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shieru1214:SYSTEMDS-3524

Commits on Jul 25, 2026

Add multi-threaded unique in LibMatrixSketch

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Refine multi-threaded unique memory handling

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Account for object overhead in parallel unique memory guard

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Add batched parallel unique handling

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Align unique parallel path with SystemDS semantics

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[SYSTEMDS-3524] Address review: activate parallel unique and fix batched memory guards
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[SYSTEMDS-3524] Use InfrastructureAnalyzer for the local memory budget
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Commits on Jul 26, 2026

[SYSTEMDS-3524] Add unique() runtime benchmark
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Commits on Jul 27, 2026

[SYSTEMDS-3524] Make the unique tests script-based
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Commits on Jul 28, 2026

[SYSTEMDS-3524] Add sparse cases to the unique tests
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