When you receive that callback the MPI has ben put in a quiescent state. As
such it does not allow MPI communication until the checkpoint is completely
finished. So you cannot call barrier in the checkpoint callback. Since Open
MPI did doing a coordinated checkpoint, you can assume that all process
Dear Group,
I wanted to do a synchronization check with 'MPI_Barrier(MPI_COMM_WORLD)' in
'opal_crs_self_user_checkpoint(char **restart_cmd)' call. Although every
process is present in this call, it fails to synchronize. Is there any reason
why cant we use barrier?Thanks in advance.
Kind regards
