https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97390
--- Comment #6 from afernandez at odyhpc dot com --- After reading some more documentation and the pdf that you mentioned, I concur that the line doesn't follow OpenACC standards. I will keep looking into the problem (maybe the PGI compiler simply ignores the 'async' clause) and try upgrading to GCC 10. Thanks.
