Dear All, In one of our application I am seeing following error while using collective call MPI_File_write_all : Error in ADIOI_Calc_aggregator(): rank_index(1) >= fd->hints->cb_nodes (1) fd_size=102486061 off=102486469 Non collective version works fine. While looking at callstack I came across below comment in mpich-3.2/src/mpi/romio/adio/common/ad_aggregate.c : /* we index into fd_end with rank_index, and fd_end was allocated to be no * bigger than fd->hins->cb_nodes. If we ever violate that, we're ** overrunning arrays. Obviously, we should never ever hit this abort */* if (rank_index >= fd->hints->cb_nodes || rank_index < 0) { FPRINTF(stderr, "Error in ADIOI_Calc_aggregator(): rank_index(%d)
= fd->hints->cb_nodes (%d) fd_size=%lld off=%lld\n", rank_index,fd->hints->cb_nodes,fd_size,off); MPI_Abort(MPI_COMM_WORLD, 1); }
I am going to look into application and see if there is an issue with offset overflow. But looking at above comment ("Obviously, we should never ever hit this abort ") I thought should ask if there is any obvious thing I am missing. Regards, Pramod p.s. I will provide reproducer after looking into this more carefully. _______________________________________________ discuss mailing list [email protected] To manage subscription options or unsubscribe: https://lists.mpich.org/mailman/listinfo/discuss