On Feb 3, 2012, at 6:28 AM, adrian sabou wrote:
> You were right about iptables being very complex. It seems that uninstalling
> it completly did the trick. All my Send / Receive operations now complete as
> they should. Just one more question. Will uninstalling iptables have any
> undesired ef
From: Jeff Squyres
To: adrian sabou
Sent: Friday, February 3, 2012 12:30 PM
Subject: Re: [OMPI users] OpenMPI / SLURM -> Send/Recv blocking
On Feb 3, 2012, at 5:21 AM, adrian sabou wrote:
> There is no iptables in my /etc/init.d.
It might be different in dif
out. I am grateful!
Adrian
From: Jeff Squyres
To: adrian sabou ; Open MPI Users
Sent: Thursday, February 2, 2012 11:19 PM
Subject: Re: [OMPI users] OpenMPI / SLURM -> Send/Recv blocking
When you run without a hostfile, you're likely only running on
Send / Receive pairs (p1 sends to p2, p2 receives
> and sends back to p1, p1 receives) work and after that the program just
> blocks. However, like all other examples, the example works if I launch it
> with "mpirun -np 2 " and bounces the value 100 times.
>
> Adrian
Jeff Squyres
To: adrian sabou ; Open MPI Users
Sent: Thursday, February 2, 2012 3:09 PM
Subject: Re: [OMPI users] OpenMPI / SLURM -> Send/Recv blocking
Have you disabled iptables (firewalling) on your nodes?
Or, if you want to leave iptables enabled, set it such that all nodes in your
clu
abou ; Open MPI Users
>
> Sent: Wednesday, February 1, 2012 10:32 PM
> Subject: Re: [OMPI users] OpenMPI / SLURM -> Send/Recv blocking
>
> On Jan 31, 2012, at 11:16 AM, adrian sabou wrote:
>
> > Like I said, a very simple program.
> > When launching this applica
ian sabou ; Open MPI Users
Sent: Wednesday, February 1, 2012 10:32 PM
Subject: Re: [OMPI users] OpenMPI / SLURM -> Send/Recv blocking
On Jan 31, 2012, at 11:16 AM, adrian sabou wrote:
> Like I said, a very simple program.
> When launching this application with SLURM (using "salloc -
On Jan 31, 2012, at 11:16 AM, adrian sabou wrote:
> Like I said, a very simple program.
> When launching this application with SLURM (using "salloc -N2 mpirun
> ./"), it hangs at the barrier.
Are you able to run the MPI example programs in examples/ ?
> However, it passes the barrier if I launc
Hi All,
I'm having this weird problem when running a very simple OpenMPI application.
The application sends an integer from the rank 0 process to the rank 1 process.
The sequence of code that I use to accomplish this is the following:
if (rank == 0)
{
printf("Pro
