Hi Peter, Peter Wong wrote:
Open MPI defines its own malloc (by default), so malloc of glibc is not called.But, without calling malloc of glibc, the allocator of libhugetlbfs to back text and dynamic data by large pages, e.g., 16MB pages on POWER systems, is not used.
You could modify ptmalloc2 in OpenMPI to allocate Huge Pages directly. It would be a nice feature.
Patrick
