Re: [OMPI users] openMPI (multiple CPUs)

Sure, go buy a motherboard that you can plug in 2 or more CPUs into it. Otherwise it would be cheaper to buy another box. From: users-boun...@open-mpi.org [mailto:users-boun...@open-mpi.org] On Behalf Of Rodolfo Chua Sent: Friday, February 26, 2010 8:14 PM To: Open MPI Users Subject: [OMPI user

[OMPI users] openMPI (multiple CPUs)

Hi all! I'm running a code using openMPI in a quad-core cpu. Though it is working, a quad-core is still not enough. Is there another way, aside from a server, of connecting 2 or 3 CPUs and running them on parallel with MPI? Thanks. Rodolfo

Re: [OMPI users] Number of processes and spawn

I'm doing some tests and it seems that is not able to do a spawn multiple with more than 128 nodes. It just hold, with no error message. What do you think? What can I try to understand the problem. Thanks, Federico 2010/2/26 Ralph Castain > No known limitations of which we are aware...the

Re: [OMPI users] OpenMPI with Sun Gridengine: Host key verification failed.

Hi, Am 26.02.2010 um 15:01 schrieb Tobias Müller: I hope this list is the right place for my problem concerning OpenMPI with Sun Gridengine. I'm running OpenMPI with gridengine support: MCA ras: gridengine (MCA v1.0, API v1.3, Component v1.2.7) MCA pls: gridengine (MCA v1.0, API v1.3, Componen

[OMPI users] OpenMPI with Sun Gridengine: Host key verification failed.

Hi everybody! I hope this list is the right place for my problem concerning OpenMPI with Sun Gridengine. I'm running OpenMPI with gridengine support: MCA ras: gridengine (MCA v1.0, API v1.3, Component v1.2.7) MCA pls: gridengine (MCA v1.0, API v1.3, Component v1.2.7) on 4 Debian Lenny system wit

Re: [OMPI users] Number of processes and spawn

No known limitations of which we are aware...the variables are all set to int32_t, so INT32_MAX would be the only limit I can imagine. In which case, you'll run out of memory long before you hit it. 2010/2/26 Federico Golfrè Andreasi > HI ! > > have you ever did some analysis to understand if t

[OMPI users] Segfault in mca_odls_default.so with > ~100 process.

I am trying to run an MPI code across 136 processing using an appfile (attached), since every process needs to be run with a host/process dependent parameter. This whole system works wonderfully for up to around 100 processes but usually fails with a segfault, apparently in in mca_odls_default.s

[OMPI users] Number of processes and spawn

HI ! have you ever did some analysis to understand if there is a limitation in the number of nodes usable with OpenMPI-v1.4 ? Using also the functions MPI_Comm_spawn o MPI_Comm_spawn_multiple. Thanks, Federico