Hi Clement,
First, if you run 400 jobs on 16 nodes you will end up with around 32
processes on each nodes. Depending on the memory footprint of the
application it will fail because of memory exhaustion. Usually I am
able to oversubscribe up to 64 NAS class B processes on 2GB, and less
tha
Hi,
I am encountering the problem that a working child process is frozen in
the middle of its work, and continues only when its parent process (
which spawned it earlier on ) calls some MPI function.
The issue here is, that in order to accept client socket communication
the parent process is, at th
I am assuming all the processes are running on a single SMP? Not sure if
you have tried it but you may want to set the mpool_sm_max_size to
something other than the default 512MB, since you seem to be using
shared memory?
Jeff Squyres wrote:
My guess is that this is similar to the last post: y
Really modules is the only way to go, we use it to maintain no less
than 12 versions of openmpi compiled with pgi, gcc, nag, and intel.
Yes as the other reply said just set LD_LIBRARY_PATH you can use
ldd executable
to see which libraries the executable is going to use under the
current en
We have almost exactly the situation you describe with our clusters. I'm
not the system administrator but I am the one who actually writes the module
scripts.
It is best to compile OpenMPI (and any other MPI) with each compiler
separately; this is especially necessary for the Fortran and C++
Hi all:
I'm trying to set up a cluster for a group of users with very
different needs. So far, it looks like I need gcc, pgi, and intel to
work with openmpi and mpich, with each user able to control what
combination they get. This is turning out to be much more difficult
than I expected.
Someon
I have seen situations where after installing Open MPI, the wrapper
compilers did not create any executables, and seemed to do nothing.
I was never able to figure out why the wrappers were broken, and
reinstalling Open MPI always seemed to make it work.
If I recall correctly, when this happen
Jeff Squyres wrote:
Thanks for your reply. I am using pbs job scheduler and I reqested 16
cpus to run 400 processes, but I don't how many processes are allocated
on each cpus. Do you think it is a problem?
Clement
Are you running all of these processes on the same machine, or
multiple dif
My guess is that this is similar to the last post: you are
oversubscribing the nodes so heavily that the OS is running out of
some resources (perhaps regular or registered memory?) such that Open
MPI is unable to setup its network transport layers properly.
On Nov 15, 2007, at 6:35 AM, Cle
Are you running all of these processes on the same machine, or
multiple different machines?
If you're running 400 processes on the same machine, it may well be
that you are simply running out of memory or other OS resources. In
particular, I've never seem iof fail that way before (iof is o
Hi,
I am using openmpi 1.2.3 under ia64 machine and uses pbs job
scheduler. I can successfully run 100 processes on 16 cpus, but I got
an error If run 200 processes on the same number of cpus. The error is :
PML add procs failed
--> Returned "Temporarily out of resource" (-3) instead o
On Nov 14, 2007, at 10:48 PM, Sajjad wrote:
No i didn't find any executable after the issued the command "mpicc
mpitest1.c -o mpitest1"
If you're not finding the executable at all, then something else is
very wrong. The "mpicc" command is just a "wrapper" compiler, meaning
that it takes y
Hello Jeff,
No i didn't find any executable after the issued the command "mpicc
mpitest1.c -o mpitest1"
And sorry for dumping such an irrelevant chunk of data to the mailing list.
Sajjad
You didn't answer my question as to whether the "mpitest1" executable
was available on all nodes or not. :-) That is the real problem here.
But unrelated to that, you are running an ancient version of Open MPI
(v1.1). Is there any chance that you can upgrade to the latest stable
release
Hello Jeff,
I thought that the following information will be helpful to track the issue.
***
sajjad@sajjad:~$ ompi_info
Open MPI: 1.1
Open MPI SVN revision: r10477
Open RTE: 1.1
Open RTE SVN revision: r10477
Hi,
I have configured out why the tmpdir parameter works for the first
process. I got another problem if I tried to run 400 processes (no
problem if under 400 processes). I got an error "ORTE_ERROR_LOG: Out of
resource in file base/iof_base_setup.c at line 106". I attached the
message as belo
16 matches
Mail list logo
