https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113005
--- Comment #16 from Thomas Schwinge <tschwinge at gcc dot gnu.org> --- Even with 'call omp_set_num_threads(8)' added, 'libgomp.fortran/rwlock_1.f90' still takes ~1 min to execute with working directory on NFS, compared to almost instantaneous via local disk. (I've not observed any other irregularities in NFS access.)