Hi WRF team,
We've been running WRF successfully using pure mpi (dmpar) and want to explore potential gains when switching over to the hybrid mpi + openmp (dm+sm). Unfortunately, we get a seg fault about 2 mins into a model run. Any advice / pointer? I know it is usually advised to go with either a pure mpi or openmp solution, but I'd really like to find out what is causing crash.
We are using:
- Intel OneAPI 2022.2.1
- Intel MPI 2021.7.1
Namelist is attached which runs fine with mpi but crashes with mpi+opnemp. Test run script is also attached where stuff like the stack size is set to unlimited.
Let me know if I can provide any more info.
Thanks in advance for any help,
Rob
We've been running WRF successfully using pure mpi (dmpar) and want to explore potential gains when switching over to the hybrid mpi + openmp (dm+sm). Unfortunately, we get a seg fault about 2 mins into a model run. Any advice / pointer? I know it is usually advised to go with either a pure mpi or openmp solution, but I'd really like to find out what is causing crash.
We are using:
- Intel OneAPI 2022.2.1
- Intel MPI 2021.7.1
Namelist is attached which runs fine with mpi but crashes with mpi+opnemp. Test run script is also attached where stuff like the stack size is set to unlimited.
Let me know if I can provide any more info.
Thanks in advance for any help,
Rob