[mpich-discuss] recovering from a communicator failure

[Rajeev Thakur]

If you use multiple threads, you must initialize with MPI_Init_thread instead of MPI_Init. And you can call MPI_Init or Init_thread only once in a process running an MPI program. You have to start a new process if you want to call it again.

Rajeev


On Sep 20, 2010, at 10:21 AM, Hiatt, Dave M wrote:

> I am currently doing mpi_init in thread 1 (thread 0 is my master thread), on the main app process for what becomes node 0.  If I have a fatal MPI error, and can catch it, is terminating the initiating thread (thread 1) sufficient to allow me to execute a new MPI_Init and recover?
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