Raise PGI version floor to 19.3
Issue #527
resolved
As described in this thread on PR 397, bugs in the PGI optimizer observed on all platforms through compiler version 19.1 prevent it from correctly optimizing the upcxx::copy()
implementation, which was overhauled in that PR.
After some non-trivial investment of effort, we were unsuccessful in finding an acceptable workaround that would ensure this buggy optimizer continued to correctly compile upcxx::copy()
.
As agreed, I'll be raising our supported PGI version floor to 19.3 to ensure that end users don't encounter this problem.
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Implemented in PR 401