controlling MPI-3 shared memory allocation target

Y__Luo — Tue, 13 Oct 2015 22:49:31 GMT

Hi,

I'd like to request a feature for using Intel MPI on KNL.

MPI-3 allows to allocate memories shared among the MPI tasks on the same node through MPI_Win_allocate_shared. I'd like to have the control of where this chunk of memory is seated, either on MCDRAM or DDR when I use the flat mode of MCDRAM. I need something similiar to hbwmalloc which complements malloc for targeting MCDRAM or at least a way to control the target.

Thanks. Ye

Mark_L_Intel — Tue, 13 Oct 2015 23:18:23 GMT

Hi Ye,

I will file an internal enhancement request on your behalf with Intel MPI team based on your post.

Regards,

Mark

topic controlling MPI-3 shared memory allocation target in Software Archive

controlling MPI-3 shared memory allocation target