Re: [OMPI users] MPI I/O gives undefined behavior if the amount of bytes described by a filetype reaches 2^32

Hello, thank you very much for your interest in this problem. Please excuse the late response. I'm encountering the error on version 1.10.2 and 1.10.3 . Should I open a ticket on the github issue tracker? Kind Regards, Nils ___ users mailing list users

[OMPI users] MPI I/O gives undefined behavior if the amount of bytes described by a filetype reaches 2^32

Dear OpenMPI Mailing List, I have a problem with MPI I/O running on more than 1 rank using very large filetypes. In order to reproduce the problem please take advantage of the attached program "mpi_io_test.c". After compilation it should be run on 2 nodes. The program will do the following for a