Re: [OMPI users] random problems with a ring communication example

On Mar 15, 2014, at 6:21 PM, christophe petit wrote: > Ok, so from what you say, on a "execution system" point view, the ring > communication is well achieved (i.e respecting the good order with, in last > position, rank0 which receives from rank 6) but the stdout doesn't reflect > what real

Re: [OMPI users] random problems with a ring communication example

Ok, so from what you say, on a "execution system" point view, the ring communication is well achieved (i.e respecting the good order with, in last position, rank0 which receives from rank 6) but the stdout doesn't reflect what really happened, does it ? Is there a way to make stdout respect the ex

Re: [OMPI users] random problems with a ring communication example

The explanation is simple: there is no rule about ordering of stdout. So even though your rank0 may receive its MPI message last, its stdout may well be printed before one generated on a remote node. Reason is that rank 0 may well be local to mpirun, and thus the stdout can be handled immediatel

[OMPI users] random problems with a ring communication example

Hello, I followed a simple MPI example to do a ring communication. Here's the figure that illustrates this example with 7 processes : http://i.imgur.com/Wrd6acv.png Here the code : -

Re: [OMPI users] Question about '--mca btl tcp,self'

On Mar 14, 2014, at 10:18 PM, Jianyu Liu wrote: >> On Mar 14, 2014, at 10:16:34 AM,Jeff Squyres wrote: >> >>> On Mar 14, 2014, at 10:11 AM, Ralph Castain wrote: >>> 1. If specified '--mca btl tcp,self', which interface application will run on, use GigE adaper OR use the OpenFabr

Re: [OMPI users] ssh error

Well, for one thing - that output clearly shows you are running MPICH, not Open MPI. You might ask them about the errors On Mar 15, 2014, at 6:36 AM, raha khalili wrote: > Dear all > > I am trying to run a program based on other posts in this topic. I run this > command as Mehdi said but I ge

Re: [OMPI users] ssh error

Dear all I am trying to run a program based on other posts in this topic. I run this command as Mehdi said but I get an error: [client3@master 92.12.23]$ mpirun --hostfile texthost -np 2 /home/client3/espresso-5.0.2/bin/pw.x -in AdnAu.rx.in | tee AdnAu.rx.out [mpie...@master.cluster.umz] HYDU_pro

Re: [OMPI users] Question about '--mca btl tcp,self'

>On Mar 14, 2014, at 10:16:34 AM,Jeff Squyres wrote: > >>On Mar 14, 2014, at 10:11 AM, Ralph Castain wrote: >> >>> 1. If specified '--mca btl tcp,self', which interface application will run >>> on, use GigE adaper OR use the OpenFabrics interface in IP over IB mode >>> (just like a high perfo