Re: [OMPI users] Pinned memory

2009-01-30 Thread Brian W. Barrett
On Thu, 29 Jan 2009, Gabriele Fatigati wrote: Dear OpenMPI Developer, i have a doubt regards mpi_leave_pinned parameter. Suppose i have a simple for: for( int i=0; i< 100; i++) MPI_Reduce(a, b, ...) My question is: if i set mpi_leave_pinned= 1, buffer memories are pinned in the entire pro

[OMPI users] Pinned memory

2009-01-29 Thread Gabriele Fatigati
Dear OpenMPI Developer, i have a doubt regards mpi_leave_pinned parameter. Suppose i have a simple for: for( int i=0; i< 100; i++) MPI_Reduce(a, b, ...) My question is: if i set mpi_leave_pinned= 1, buffer memories are pinned in the entire process, or just into the for cycle? When the cycl