[OMPI users] Suppress mpirun exit error chatter

2019-01-06 Thread Jeff Wentworth via users
Hi everyone, Is there any way to suppress this bit of mpirun error chatter as shown in the example below? Since the code (a.out) already issues an error message and error return status, I was hoping to leave it at that. Not a show stopper by any means, but was just wondering if maybe there

Re: [OMPI users] Fwd: Minimum time between MPI_Bcast or MPI_Reduce calls?

2019-01-18 Thread Jeff Wentworth via users
-Nathan > On Jan 18, 2019, at 6:31 PM, Jeff Wentworth via users wrote: > > Greetings everyone, > > I have a scientific code using Open MPI (v3.1.3) that seems to work fine when MPI_Bcast() and MPI_Reduce() calls are well spaced out in time.  Yet if the time betwee

[OMPI users] Minimum time between MPI_Bcast or MPI_Reduce calls?

2019-01-18 Thread Jeff Wentworth via users
Greetings everyone, I have a scientific code using Open MPI (v3.1.3) that seems to work fine when MPI_Bcast() and MPI_Reduce() calls are well spaced out in time. Yet if the time between these calls is short, eventually one of the nodes hangs at some random point, never returning from the