Intel® MPI Library
Get help with building, analyzing, optimizing, and scaling high-performance computing (HPC) applications.
Announcements
FPGA community forums and blogs on community.intel.com are migrating to the new Altera Community and are read-only. For urgent support needs during this transition, please visit the FPGA Design Resources page or contact an Altera Authorized Distributor.
2275 Discussions

Placing MPI ranks on the specific cores of Xeon Phi

Shilpa_B_
Beginner
‎03-14-2014 10:03 AM
652 Views

Hi..Is it possible to place the MPI ranks on the specific cores of Xeon Phi (1-60) during the native mode computation. All that I understand is that the scheduler assigns ranks in round robin fashion on all the nodes starting from the first available core. Is it possible to overwrite this?

0 Kudos

Link Copied

1 Reply
TimP
Honored Contributor III
‎03-15-2014 03:42 AM
652 Views

You'll need to read the docs for the MPI of your choice.  You could go as far as giving full lists of assignments on each node, e.g. by I_MPI_PIN.....

0 Kudos
Copy link
Reply

Community support is provided Monday to Friday. Other contact methods are available here.

Intel does not verify all solutions, including but not limited to any file transfers that may appear in this community. Accordingly, Intel disclaims all express and implied warranties, including without limitation, the implied warranties of merchantability, fitness for a particular purpose, and non-infringement, as well as any warranty arising from course of performance, course of dealing, or usage in trade.

For more complete information about compiler optimizations, see our Optimization Notice.