Re: [OMPI users] Questions about binding processes

2010-05-10 Thread Terry Dontje
NGUYEN Laurent wrote: Ok, thank you for your answer. I think this rankfile feature is very interesting to run some jobs like MPMD jobs or hybrid jobs (multithreaded or GPU for examples). Regards, Point taken. The basic premise Jeff and I are working on is to see if we could come up with a s

Re: [OMPI users] Questions about binding processes

2010-05-10 Thread NGUYEN Laurent
Ok, thank you for your answer. I think this rankfile feature is very interesting to run some jobs like MPMD jobs or hybrid jobs (multithreaded or GPU for examples). Regards, -- -- NGUYEN Laurent HPC Engineer CS:SI email: laurent.ngu...@c-s.fr web: http://www.c-s.fr CS:SI 22 avenue Galilé

Re: [OMPI users] Questions about binding processes

2010-05-10 Thread Terry Dontje
NGUYEN Laurent wrote: Hello, I'm trying to understand the difference between theses two options: " --mca mpi_paffinity_alone 1 " and " --bind-to-core " To me, it's the same thing (may be paffinity have maffinity in addition) but the purpose af theses options is to bind MPI process to process

[OMPI users] Questions about binding processes

2010-05-10 Thread NGUYEN Laurent
Hello, I'm trying to understand the difference between theses two options: " --mca mpi_paffinity_alone 1 " and " --bind-to-core " To me, it's the same thing (may be paffinity have maffinity in addition) but the purpose af theses options is to bind MPI process to processors. Which is the bes