Host compression #17656
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Host compression #17656
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Co-authored-by: Bradley Dice <bdice@bradleydice.com>
…into comp-headers-cleanup
…high-lvl-comp-api
…high-lvl-comp-api
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vuule
added
feature request
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/ok to test |
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Description
Add compression APIs to make the nvCOMP use transparent.
Remove direct dependency on nvCOMP in the ORC and Parquet writers.
Add multi-threaded host-side compression; currently off by defaul, can only be enabled via
LIBCUDF_USE_HOST_COMPRESSIONenvironment variable.Currently the host compression adds D2H + H2D transfers. Avoiding the H2D transfer requires large changes to the writers.
Checklist