thanks
I used:
cout << " I am rank " << rank << " I am before MPI_Finalize()" <<
endl; MPI_Finalize(); return 0;
I can get the output " I am rank 0 (1, 2, ) I am before MPI_Finalize() ".
Are there other better ways to check this ?
Any help is appreciated.
thanksI found a problem:
I used: cout << " I am rank " << rank << " I am before MPI_Finalize()"
<< endl; MPI_Finalize();cout << " I am rank " << rank << " I am
after MPI_Finalize()" << endl; return 0;I can get the output " I am
rank 0 (1, 2, ) I am before M
So what you are saying is *all* the ranks have entered MPI_Finalize
and only a subset has exited per placing prints before and after
MPI_Finalize. Good. So my guess is that the processes stuck in
MPI_Finalize have a prior MPI request outstanding that for whatever
reason is unable to complete
Thanks, But, I have put a mpi_waitall(request) before
cout << " I am rank " << rank << " I am before MPI_Finalize()" << endl;
If the above sentence has been printed out, it means that all requests have
been checked and finished. right ?
What may be the possible reasons for that stuck ?
I think I got this problem before. Put a mpi_barrier(mpi_comm_world) before
mpi_finalize for all processes. For me, mpi terminates nicely only when all
process are calling mpi_finalize the same time. So I do it for all my
programs.
On Mon, Oct 25, 2010 at 7:13 AM, Jack Bryan wrote:
> Thanks,
Thanks, the problem is still there.
I used:
cout << "In main(), I am rank " << myRank << " , I am before
MPI_Barrier(MPI_COMM_WORLD). \n\n" << endl ;
MPI_Barrier(MPI_COMM_WORLD);cout << "In main(), I am rank "
<< myRank << " , I am before MPI_Finalize() and after
On Mon, Oct 25, 2010 at 18:26, Jack Bryan wrote:
> Thanks, the problem is still there.
This really doesn't prove that there are no outstanding asynchronous
requests, but perhaps you know that there are not, despite not being able to
post a complete test case here. I suggest attaching a debugge
thanks,
Would like to tell me how to use
(gdb --batch -ex 'bt full' -ex 'info reg' -pid ZOMBIE_PID)
in MPI ?
I need to use #PBS parallel job script to submit a job on MPI cluster.
Where should I put the (gdb --batch -ex 'bt full' -ex 'info reg' -pid
ZOMBIE_PID) in the script ?
How to get the
On 25 Oct 2010, at 17:26, Jack Bryan wrote:
> Thanks, the problem is still there.
>
> I used:
>
> Only process 0 returns. Other processes are still struck in
> MPI_Finalize().
>
> Any help is appreciated.
You can use the command "padb -aQ" to show you the message queues for your
appl
On Mon, Oct 25, 2010 at 19:07, Jack Bryan wrote:
> I need to use #PBS parallel job script to submit a job on MPI cluster.
>
Is it not possible to reproduce locally? Most clusters have a way to submit
an interactive job (which would let you start this thing and then inspect
individual processes)
thanks
I have to use #PBS to submit any jobs in my cluster. I cannot use command line
to hang a job on my cluster.
this is my script: --#!/bin/bash#PBS -N
jobname#PBS -l walltime=00:08:00,nodes=1#PBS -q
queuenameCOMMAND=/mypath/myprogNCORES=5
cd $PBS_O_WORKD
Can you use the interactive mode of PBS to get 5 cores on 1 node? IIRC, "qsub
-I ..." ?
Then you get a shell prompt with your allocated cores and can run stuff
interactively. I don't know if your site allows this, but interactive
debugging here might be *significantly* easier than try to auto
On Mon, Oct 25, 2010 at 19:35, Jack Bryan wrote:
> I have to use #PBS to submit any jobs in my cluster.
> I cannot use command line to hang a job on my cluster.
>
You don't need a cluster to run MPI jobs, can you run the job on whatever
you development machine is? Does it hang there?
PBS inter
thanks
I use qsub -I nsga2_job.shqsub: waiting for job
48270.clusterName to start
By qstatI found the job name is none and no results show up.
No shell prompt appear, the command line is hang there , no response.
Any help is appreciated.
Thanks
Jack
Oct. 25 2010
> From: js
Check the man page for qsub for proper use.
On Oct 25, 2010, at 1:49 PM, Jack Bryan wrote:
> thanks
>
> I use
> qsub -I nsga2_job.sh
> qsub: waiting for job 48270.clusterName to start
>
> By qstat
> I found the job name is none and no results show up.
>
> No shell prompt
Hello,
I am a beginner using Open MPI to set up a simple Beowulf cluster of PCs
for my Distributed Systems lab. My head node is my x86_64 architecture
Fedora 12 machine. The rest of my nodes are i386 Fedora 13 machines. I
understand that I need to compile Open MPI with CFLAGS=-m32 so that I
-- Forwarded message --
From: saahil...@gmail.com
List-Post: users@lists.open-mpi.org
Date: Oct 25, 2010 11:26pm
Subject: Cross compiling for 32 bit from a 64 bit machine
To: us...@open-mpi.org
CC:
Hello,
I am a beginner using Open MPI to set up a simple Beowulf cluster of PCs
Do ./configure --help and you'll see options for specifying the host and build
target. You need to do that when cross-compiling.
On Oct 25, 2010, at 12:01 PM, saahil...@gmail.com wrote:
> -- Forwarded message --
> From: saahil...@gmail.com
> Date: Oct 25, 2010 11:26pm
> Subject:
Your job may be queued, not executing, because there are no
resources available, all nodes are busy.
Try qstat -a.
Posting a code snippet with all your MPI calls may prove effective.
You might get a trove of advice for a thrift of effort.
Jeff Squyres wrote:
Check the man page for qsub for prop
You might also need LDFLAGS=-m32 ...?
On Oct 25, 2010, at 1:56 PM, saahil...@gmail.com wrote:
> Hello,
> I am a beginner using Open MPI to set up a simple Beowulf cluster of PCs for
> my Distributed Systems lab. My head node is my x86_64 architecture Fedora 12
> machine. The rest of my nodes a
Ralph,
As you suggested, I configured with the following options -
./configure --prefix=/home/wolf/openmpi/ CFLAGS=-m32 CXXFLAGS=-m32
FFLAGS=-m32 FCFLAGS=-m32 --build=i686-pc-linux-gnu LDFLAGS=-m32
I'm afraid I am still getting the same error messages while making as I did
last time. Did I
I also tried by adding
--host=i686-pc-linux-gnu
alongwith the --build option. Same error :(
On Oct 25, 2010 11:59pm, saahil...@gmail.com wrote:
Ralph,
As you suggested, I configured with the following options -
./configure --prefix=/home/wolf/openmpi/ CFLAGS=-m32 CXXFLAGS=-m32
FFLAGS=-m32
I think you are missing the --host flag, so it still thinks it is building for
the current machine.
On Oct 25, 2010, at 12:29 PM, saahil...@gmail.com wrote:
> Ralph,
> As you suggested, I configured with the following options -
>
> ./configure --prefix=/home/wolf/openmpi/ CFLAGS=-m32 CXXFLAG
Make sure to "make clean", too -- just to clean up any kruft that may be left
over from a prior build that is not necessarily compatible with your new set of
configure/build/link options.
On Oct 25, 2010, at 2:35 PM, Ralph Castain wrote:
> I think you are missing the --host flag, so it still t
The problem is that you set the build and the host to the -same- architecture -
that indicates it isn't a cross-compile situation. The --host flag should
indicate the arch of the machines that will run the code - in your case, that
would be i386-pc-linux-gnu
On Oct 25, 2010, at 12:30 PM, saahi
thanks
But, the code is too long.
Jack Oct. 25 2010
> Date: Mon, 25 Oct 2010 14:08:54 -0400
> From: g...@ldeo.columbia.edu
> To: us...@open-mpi.org
> Subject: Re: [OMPI users] Open MPI program cannot complete
>
> Your job may be queued, not executing, because there are no
> resources available,
Ralph, well my --host flag contains i686-pc-linux-gnu and so does --build.
On Oct 26, 2010 12:15am, Ralph Castain wrote:
The problem is that you set the build and the host to the -same-
architecture - that indicates it isn'ta cross-compile situation. The
--host flag should indicate the arch
ThanksI have downloaded http://padb.googlecode.com/files/padb-3.0.tgz
and compile it.
But, no user manual, I can not use it by padb -aQ.
./padb -aQ myjobpadb: Error: --all incompatible with specific ids
Actually, myjob is running in the queue.
Do you have use manual about how to use it ?
thanks
Also, btw using these two values and make clean, I was able to both
configure and build Open MPI properly. After that I compiled an example
code with -m32 flag and it compiled properly too :D. It remains to be seen
whether my setup of machines run them properly or not.
Regards,
Saahil
On O
On 25 Oct 2010, at 20:18, Jack Bryan wrote:
> Thanks
> I have downloaded
> http://padb.googlecode.com/files/padb-3.0.tgz
>
> and compile it.
>
> But, no user manual, I can not use it by padb -aQ.
The -a flag is a shortcut to all jobs, if you are providing a jobid (which is
normally numeric)
can you install MPI on your local machine? As someone said earlier, you
don't need a cluster to run MPI. You can run MPI with multiple processes on
a single computer.
On Mon, Oct 25, 2010 at 12:40 PM, Ashley Pittman wrote:
>
> On 25 Oct 2010, at 20:18, Jack Bryan wrote:
>
> > Thanks
> > I have d
Thanks
I have downloaded http://padb.googlecode.com/files/padb-3.2-beta1.tar.gz
and followed the instructions of INSTALL file and installed it at
/mypath/padb32
But, I got:
-bash-3.2$ padb -Ormgr=pbs -Q 48279.clusterJob 48279.cluster is not active
Actually, the job was running.
I have installed
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