[OMPI users] mpirun Only Works When Second Ethernet Interface Disabled

Ok, I'm totally flummoxed here. I'm an ISV delivering a C program that can use MPI for it's inter-node communications. It has been deployed on a number (dozens) of small clusters and has been working pretty over the last few months. That is, until someone tried to change the static IP

Re: [OMPI users] Open MPI programs with autoconf/automake?

Hi Jeff, Jeff Squyres wrote: On Nov 10, 2008, at 6:41 AM, Jed Brown wrote: With #define's and compiler flags, I think that can be easily done -- was wondering if this is something that developers using MPI do and whether AC/AM supports it. AC will allow you to #define whatever you want

Re: [OMPI users] ompi_info hangs

I rebuilt without the memory manager, now ompi_info crashes with this output: ./configure --prefix=/usr/local/openmpi --disable-mpi-f90 --disable- mpi-f77 --without-memory-manager localhost:~/openmpi> ompi_info Open MPI: 1.2.8 Open MPI SVN revision: r19718

Re: [OMPI users] Can I build development RPM from openmpi-1.2.8-1.src.rpm?

My goal is to run some software that uses MPI so for now I the most standard setup. > Are you saying that you have libmpi_f90.so available and > when you try to run, you get missing symbol errors? Or are > you failing to compile/link at all? Linking stage fails. When I use mpif90 to

Re: [OMPI users] dual cores

Hi Erin, > I have a dual core laptop and I would like to have both cores running. > > Here is the following my-hosts file: > localhost slots=2 Be warned that at least in default config running more MPI threads than you have cores results in dog slow code. Single core machine: $ cat my-hosts

Re: [OMPI users] /dev/shm

Jeff Squyres wrote: That is odd. Is your user's app crashing or being forcibly killed? The ORTE daemon that is silently launched in v1.2 jobs should ensure that files under /tmp/openmpi-sessions-@ are removed. It looks like I see orphaned directories under /tmp/openmpi* as well. --

Re: [OMPI users] /dev/shm

yeah if that gets full it is not going to work, We use /dev/shm for some FEA apps that have bad IO patters, I tend to keep it to just the most educated users. It just impacts others to much if not treated with respect. Brock Palen www.umich.edu/~brockp Center for Advanced Computing

Re: [OMPI users] dual cores

I got "htop" and it's wonderful. Thanks for the suggestion. Erin M. Hodgess, PhD Associate Professor Department of Computer and Mathematical Sciences University of Houston - Downtown mailto: hodge...@uhd.edu -Original Message- From: users-boun...@open-mpi.org on behalf of Jeff Squyres

Re: [OMPI users] /dev/shm

That is odd. Is your user's app crashing or being forcibly killed? The ORTE daemon that is silently launched in v1.2 jobs should ensure that files under /tmp/openmpi-sessions-@ are removed. On Nov 10, 2008, at 2:14 PM, Ray Muno wrote: Brock Palen wrote: on most systems /dev/shm is

Re: [OMPI users] Can I build development RPM from openmpi-1.2.8-1.src.rpm?

On Nov 10, 2008, at 2:18 PM, Oleg V. Zhylin wrote: Right -- OMPI builds shared libraries by default. What is the proper way to build static libraries from RPM? Or tarball is the only option to accomplish this? You can pass any options to OMPI's configure script through the rpmbuild

Re: [OMPI users] Can I build development RPM from openmpi-1.2.8-1.src.rpm?

> Right -- OMPI builds shared libraries by default. What is the proper way to build static libraries from RPM? Or tarball is the only option to accomplish this? > Really? That's odd -- our mpif90 simply links against > -lmpi_f90, not specifically .a or .so. You can run > "mpif90 --showme" to

Re: [OMPI users] dual cores

There's also a great project at SourceForge called "htop" that is a "better" version of top. It includes the ability to query for and set processor affinity for abitrary processes, colorized output, tree- based output (showing process hierarchies), etc. It's pretty nice (IMHO):

Re: [OMPI users] /dev/shm

Brock Palen wrote: on most systems /dev/shm is limited to half the physical ram. Was the user someone filling up /dev/shm so there was no space? The problem is there is a large collection of stale files left in there by the users that have run on that node (Rocks based cluster). I am

Re: [OMPI users] /dev/shm

on most systems /dev/shm is limited to half the physical ram. Was the user someone filling up /dev/shm so there was no space? Brock Palen www.umich.edu/~brockp Center for Advanced Computing bro...@umich.edu (734)936-1985 On Nov 10, 2008, at 1:25 PM, Ray Muno wrote: We are running OpenMPI

Re: [OMPI users] ompi_info hangs

If you're not using OpenFabrics-based networks, try configuring Open MPI --without-memory-manager and see if that fixes your problems. On Nov 8, 2008, at 5:31 PM, Robert Kubrick wrote: George, I have warning when running under debugger 'Lowest section in system-supplied DSO at 0xe000

[OMPI users] /dev/shm

We are running OpenMPI 1.2.7. Now that we have been running for a while, we are getting messages of the sort. node: Unable to allocate shared memory for intra-node messaging. node: Delete stale shared memory files in /dev/shm. MPI process terminated unexpectedly If the user deletes the stale

Re: [OMPI users] Open MPI programs with autoconf/automake?

On Nov 10, 2008, at 6:41 AM, Jed Brown wrote: With #define's and compiler flags, I think that can be easily done -- was wondering if this is something that developers using MPI do and whether AC/AM supports it. AC will allow you to #define whatever you want -- look at the documentation

[OMPI users] Can I build development RPM from openmpi-1.2.8-1.src.rpm?

Hi, I would like to to build OpenMPI from openmpi-1.2.8-1.src.rpm. I've tried plain rpmbuild and rpmbuild ... --define 'build_all_in_one_rpm 1' but resulting rpm doesn't conain any *.a libraries. I think this is a problem because I've straced mpif90 and discovered that ld invoked from

Re: [OMPI users] dual cores

you can also press "f" while"top" is running and choose option "j" this way you will see what CPU is chosen under column P Lenny. On Mon, Nov 10, 2008 at 7:38 AM, Hodgess, Erin wrote: > great! > > Thanks, > Erin > > > Erin M. Hodgess, PhD > Associate Professor > Department

Re: [OMPI users] dual cores

great! Thanks, Erin Erin M. Hodgess, PhD Associate Professor Department of Computer and Mathematical Sciences University of Houston - Downtown mailto: hodge...@uhd.edu -Original Message- From: users-boun...@open-mpi.org on behalf of Brock Palen Sent: Sun 11/9/2008 11:21 PM To: Open

Re: [OMPI users] dual cores

Run 'top' For long running applications you should see 4 processes each at 50% (4*50=200% two cpus). You are ok, your hello_c did what it should, each of thoese 'hello's could have came from any of the two cpus. Also if your only running on your local machine, you don't need a hostfile,

Re: [OMPI users] dual cores

This sounds great! Thanks for your help! Sincerely, Erin Erin M. Hodgess, PhD Associate Professor Department of Computer and Mathematical Sciences University of Houston - Downtown mailto: hodge...@uhd.edu -Original Message- From: users-boun...@open-mpi.org on behalf of Raymond Wan

Re: [OMPI users] dual cores

Dear Erin, I'm nowhere near a guru, so I hope you don't what I have to say (it might be wrong...). But what I did was just put a long loop into the program and while it was running, I opened another window and looked at the output of "top". Obviously, without the loop, the program would

[OMPI users] dual cores

Dear Open MPI gurus: I have just installed Open MPI this evening. I have a dual core laptop and I would like to have both cores running. Here is the following my-hosts file: localhost slots=2 and here is the command and output: mpirun --hostfile my-hosts -np 4 --byslot hello_c |sort Hello,