[OMPI users] Perl and MPI

2006-09-13 Thread imran shaik
Hi, I am posting to this mailing list after a long time. How is our openMPI going? Folks, I have few queries. 1. Are there any perl bindings to (Open) MPI? 2. How difficult it would be to write a perl wrapper over existing MPI code.? 3. Can I work with MPI without MPI's runtime environ

[OMPI users] OpenMPI + NAT

2006-09-13 Thread Gunnar Johansson
Hi all, We're currently setting up a small cluster used for parallel rendering. For convinience we use a master server which "hides" a set of dedicated nodes behind NAT. However, we also want to connect external workstations in a flexible manner. We've set up the routes so that each external mach

[OMPI users] problem with running mpi

2006-09-13 Thread Jayanta Roy
Hi, I was running mpirun in the linux cluster we have. mpirun -n 5 -bynode -hostfile test_nodes a.out Sometime occationaly after MPI initialization I have the following error.. rank: 1 of: 5 rank: 4 of: 5 rank: 3 of: 5 rank: 0 of: 5 rank: 2

Re: [OMPI users] Perl and MPI

2006-09-13 Thread Renato Golin
On 9/13/06, imran shaik wrote: I need to run parallel jobs on a cluster typically of size 600 nodes and running SGE, but the programmers are good at perl but not C or C++. So i thought of MPI, but i dont know whether it has perl support? Hi Imran, SGE will dispatch process among the nodes of

Re: [OMPI users] Perl and MPI

2006-09-13 Thread Ralph H Castain
I can't speak to the Perl bindings, but Open MPI's runtime already supports SGE, so all you have to do is "mpirun" like usual and we take care of the rest. You may have to check your version of Open MPI as this capability was added in the more recent releases. Ralph On 9/13/06 8:52 AM, "Renato G

Re: [OMPI users] Perl and MPI

2006-09-13 Thread Jeff Squyres
SGE capabilities will be in the upcoming 1.2 release -- it is not included in any of the current stable releases. You can grab nightly snapshot tarballs from the trunk, but they are not guaranteed to be stable (they're the head of active development). On 9/13/06 11:03 AM, "Ralph H Castain" wrot

Re: [OMPI users] Perl and MPI

2006-09-13 Thread Prakash Velayutham
Renato Golin wrote: > On 9/13/06, imran shaik wrote: > >> I need to run parallel jobs on a cluster typically of size 600 nodes and >> running SGE, but the programmers are good at perl but not C or C++. So i >> thought of MPI, but i dont know whether it has perl support? >> > > Hi Imran, >

Re: [OMPI users] OpenMPI + NAT

2006-09-13 Thread Christian Kauhaus
Gunnar Johansson : >Note also that this is not a crucial problem, we could also make all >nodes "external", but a solution with NAT would be quite practical. Trying to launch MPI processes using port forwarding is currenly a call for trouble, since IP address and port information is usually embedd

[OMPI users] Error initializing application linked with UnixODBC

2006-09-13 Thread Wael Sinno
Hi, I have an application that uses the UnixODBC library (http://www.unixodbc.org) and MPI. When trying to run a program linked with UnixODBC, I immediately get an error, regardless of the calls in the program, i.e. OpenMPI fails during MPI_Init, which is the first call in the program. I tried a