Re: [OMPI users] python, mpi and shell subprocess: orte_error_log

FWIW: OpenMPI does support spawning of both MPI and non-MPI jobs. If you are spawning a non-MPI job, then you have to -tell- us that so we don’t hang trying to connect the new procs to the spawning proc as per MPI requirements. This is done by providing an info key to indicate that the child

Re: [OMPI users] python, mpi and shell subprocess: orte_error_log

On 9 October 2015 at 12:05, simona bellavista wrote: > > > 2015-10-09 9:40 GMT+02:00 Lisandro Dalcin : >> >> On 8 October 2015 at 14:54, simona bellavista wrote: >> > >> >> >> >> >> I cannot figure out how spawn would work with a

Re: [OMPI users] python, mpi and shell subprocess: orte_error_log

On 8 October 2015 at 14:54, simona bellavista wrote: > >> >> I cannot figure out how spawn would work with a string-command. I tried >> MPI.COMM_SELF.Spawn(cmd, args=None,maxproc=4) and it just hangs > MPI.COMM_SELF.Spawn("/bin/echo", args=["Hello",

[OMPI users] python, mpi and shell subprocess: orte_error_log

iirc, MPI_Comm_spawn should be used to spawn MPI apps only. and depending on your interconnect, fork might not be supported from an MPI app. that being said, I am not sure MPI is the best way to go. you might want to use the batch manager api to execute task on remote nodes, or third party tools

Re: [OMPI users] python, mpi and shell subprocess: orte_error_log

2015-10-08 12:09 GMT+02:00 simona bellavista : > > > 2015-10-07 14:59 GMT+02:00 Lisandro Dalcin : > >> On 7 October 2015 at 14:54, simona bellavista wrote: >> > I have written a small code in python 2.7 for launching 4 independent >> >

Re: [OMPI users] python, mpi and shell subprocess: orte_error_log

2015-10-07 14:59 GMT+02:00 Lisandro Dalcin : > On 7 October 2015 at 14:54, simona bellavista wrote: > > I have written a small code in python 2.7 for launching 4 independent > > processes on the shell viasubprocess, using the library mpi4py. I am > getting >

Re: [OMPI users] python, mpi and shell subprocess: orte_error_log

On 7 October 2015 at 14:54, simona bellavista wrote: > I have written a small code in python 2.7 for launching 4 independent > processes on the shell viasubprocess, using the library mpi4py. I am getting > ORTE_ERROR_LOG and I would like to understand where it is happening and

[OMPI users] python, mpi and shell subprocess: orte_error_log

I have written a small code in python 2.7 for launching 4 independent processes on the shell viasubprocess, using the library mpi4py. I am getting ORTE_ERROR_LOG and I would like to understand where it is happening and why. This is my code: #!/usr/bin/python import subprocess import re import