Re: [OMPI users] MPI_Comm_spawn leads to pipe leak and other errors

2019-03-17 Thread Jeff Hammond
If you’re reporting a bug and have a reproducers, I recommend creating the github issue and only posting on the user list if you don’t get the attention you want there. Best, Jeff On Sat, Mar 16, 2019 at 1:16 PM Thomas Pak wrote: > Dear Jeff, > > I did find a way to circumvent this issue for m

Re: [OMPI users] MPI_Comm_spawn leads to pipe leak and other errors

2019-03-17 Thread Gilles Gouaillardet
FWIW I could observe some memory leaks on both mpirun and MPI task 0 with the latest master branch. So I guess mileage varies depending on available RAM and number of iterations. Sent from my iPod > On Mar 17, 2019, at 20:47, Riebs, Andy wrote: > > Thomas, your test case is somewhat similar t

Re: [OMPI users] MPI_Comm_spawn leads to pipe leak and other errors

2019-03-17 Thread Riebs, Andy
Thomas, your test case is somewhat similar to a bash fork() bomb -- not the same, but similar. After running one of your failing jobs, you might check to see if the “out-of-memory” (“OOM”) killer has been invoked. If it has, that can lead to unexpected consequences, such as what you’ve reported.