> If I want to run valgrind on my processes, what steps should be
> taken? I'm currently more interested in running valgrind on the
> slave processes.
I've never done it, but have you looked at the following FAQs?
http://www.open-mpi.org/faq/?category=debugging
---Tom
On 9/25/12 9:10 AM, "Jeff Squyres (jsquyres)" wrote:
>>problem, so i fixed it using "--mca btl_tcp_if_include bond0" because I
>>know this is the high speed network interface I should use on each node.
>
>Glad it works for you!
>
>If you're not using those interfaces (they might be related to Xen
How are you launching the application?
I had an app that did an Spawn_multiple with tight SGE integration, and
there was a difference in behavior depending on whether or not an app was
launched via mpiexec. I¹m not sure whether it¹s the same issue as you¹re
seeing, but Reuti describes the problem
And if ³which mpicc² doesn¹t find the executable, you could try
rpmquery -l openmpi
and
rpmquery -l openmpi-devel
Do you see mpicc? Is its parent directory in your PATH?
---Tom
On 3/29/12 8:33 AM, "Hameed Alzahrani" wrote:
> Hi,
>
> When you type "which mpicc" does the system return the corr
On 3/25/12 5:22 PM, "Hameed Alzahrani" wrote:
> I installed open MPI on Linux cluster which consist of three machines. I want
> to ask how can I check that open MPI work correctly and is there a special
> configurations that I need to set to make the machines connect to each other
> because I jus
On 2/8/12 4:52 PM, "Tom Bryan" wrote:
> Got it. Unfortunately, we *definitely* need THREAD_MULTIPLE in our case.
> I rebuilt my code against 1.4.4.
>
> When I run my test "e" from before, which is basically just
> mpiexec -np 1 ./mpitest
> I get the f
On 2/6/12 5:10 PM, "Reuti" wrote:
> Am 06.02.2012 um 22:28 schrieb Tom Bryan:
>
>> On 2/6/12 8:14 AM, "Reuti" wrote:
>>
>>>> If I need MPI_THREAD_MULTIPLE, and openmpi is compiled with thread support,
>>>> it's not cl
On 2/6/12 8:14 AM, "Reuti" wrote:
>> If I need MPI_THREAD_MULTIPLE, and openmpi is compiled with thread support,
>> it's not clear to me whether MPI::Init_Thread() and
>> MPI::Inint_Thread(MPI::THREAD_MULTIPLE) would give me the same behavior from
>> Open MPI.
>
> If you need thread support, you
OK. Sorry for the delay. I needed to read through this thread a few times
and try some experiments. Let me reply to a few of these pieces, and then
I'll talk about those experiments.
On 1/31/12 9:26 AM, "Reuti" wrote:
>>> I never used spawn_mutiple, but isn't it necessary to start it with mpi
On 1/29/12 5:44 PM, "Reuti" wrote:
> you compiled Open MPI --with-sge I assume, as the above is working - fine.
Yes, we compiled --with-sge.
>> #$ -pe orte 1-
>
> This number should match the processes you want to start plus one the master.
> Otherwise SGE might refuse to start a process on a
I am in the process of setting up a grid engine (SGE) cluster for running
Open MPI applications. I'll detail the set up below, but my current problem
is that this call to Span_multiple never seems to return.
// Spawn all of the children processes.
_intercomm = MPI::COMM_WORLD.Spawn_multiple( _nPr
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