Re: [OMPI devel] Hanging inside ompi_win_create_dynamic

2020-05-22 Thread Gilles Gouaillardet via devel
Luis, a MPI window creation is a collective operation, that involves the creation of a communicator that involves (several) non blocking allgather. I recommend you first make sure you that creating a windows does not start a recursion. Cheers, Gilles On Fri, May 22, 2020 at 7:53 PM Luis

[OMPI devel] Hanging inside ompi_win_create_dynamic

2020-05-22 Thread Luis Cebamanos via devel
Hello OpenMPI devs, I know this can be a bit vague question, but I am looking for some hint that could help me to debug the problem I am facing here. I am trying to create a dynamic window inside a collective operation. Inside the operation, the call to ompi_win_create_dynamic hangs with