I am learning how to work with Yambo in a parallel environment following the hBN-2D-para example.
http://www.yambo-code.org/wiki/index.ph ... strategies
While testing pure MPI scaling, using 1, 2, 4, and 16 MPI processes all yield seemingly good results. However, the simulation failed with 8 MPI processes. The error message is as shown.
Code: Select all
[cg17-4.agave.rc.asu.edu:mpi_rank_5][error_sighandler] Caught error: Segmentation fault (signal 11)
[cg17-4.agave.rc.asu.edu:mpi_rank_7][error_sighandler] Caught error: Segmentation fault (signal 11)
[cg17-4.agave.rc.asu.edu:mpi_rank_3][error_sighandler] Caught error: Segmentation fault (signal 11)
[cg17-4.agave.rc.asu.edu:mpi_rank_1][error_sighandler] Caught error: Segmentation fault (signal 11)
srun: error: cg17-4: tasks 1,3,5,7: Segmentation fault
Thank you very much!
Weiqing Xu