On Mon, 12 Aug 2019 18:06:01 +0300 "Mikhail Kuzminsky" <k...@free.net> wrote:
> Heterogeneous nodes in my small CentOS 7 cluster have x86-64 CPUs > along with the old Nvidia GPU C2050 (Fermi). New Fortran program uses > MPI + OpenMP software. There are several challenges here. First the rather old C2050. It is if I remember compute capability 2.0 (current is turing at 7.5...). It is also rather slow even if it can run the code. To top it off I'd expect some challenges getting a working driver+cuda that isn't horribly old (maybe cuda8 would work, ymmv..). > Does the modern gfortran or Intel ifort compilers give support of > work through OpenMP 4.5 with these GPUs? Second challenge, state of compiler support. Intel ifort will (not surprisingly) not generate OMP TARGET code for Nvidia GPUs... GCC/gfortran has some support for OpenMP and OpenACC via nvptx (see for example: https://gcc.gnu.org/wiki/Offloading) but you may want to run 9.2 or so. Bottom line: old cuda + old hardware + ??driver + nvptx + bleeding edge gcc + fortran -> not very likely usable imo. /Peter K _______________________________________________ Beowulf mailing list, Beowulf@beowulf.org sponsored by Penguin Computing To change your subscription (digest mode or unsubscribe) visit https://beowulf.org/cgi-bin/mailman/listinfo/beowulf
