[test] Reduce test input sizes for debug builds with OpenMP in transform_binary.pass
#1921
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transform_binary.pass
with the OpenMP backend in debug builds has been timing out. This is caused by testing of forward and bidirectional iterators. When no compiler optimization is present, a large number of re-computation of iterators occurs in this line: https://github.com/oneapi-src/oneDPL/blob/66ead74ff6db1eb7e047227086da836531499a74/include/oneapi/dpl/pstl/omp/parallel_for_each.h#L40 which has an expensive cost for iterators without random access. In release builds, there is no problem due to compiler optimization.The test is updated to reduce test sizes in this timeout case. I have also updated our
CMakeLists.txt
to set thePSTL_USE_DEBUG
macro for OpenMP builds as well.