Branch: refs/heads/main
Revision: 1deca04cce61d5690a70e9bca91242ad53754204
Author: brandon-neth
Link: Zarr profiling improvement by brandon-neth · Pull Request #25652 · chapel-lang/chapel · GitHub
Log Message:
Zarr profiling improvement (#25652)
This PR makes 3 improvements to the Zarr module. First, it updates the
compression/decompression methods used to prevent threads from
contending for a global lock within the blosc library. This
significantly improves performance. Second, it removes the
initialization of the temporary array that blosc writes the decompressed
data into. These two changes improve read performance by 2.5-3x on
Perlmutter. Third, it fixes a bug in the profiling methods and adds a
method to reset the profiling timers.
Testing: locally with CHPL_COMM=none and on perlmutter using
CHPL_COMM=ofi
Reviewed By: @benharsh
Diff:
M modules/packages/Zarr.chpl
D test/library/packages/Zarr/SKIPIF
https://github.com/chapel-lang/chapel/pull/25652.diff