Intel® MPI Library
Get help with building, analyzing, optimizing, and scaling high-performance computing (HPC) applications.
2235 Discussions

How can I explicitly assign rank number to each host?

seongyun_k_
Beginner
‎01-30-2016 04:28 AM
506 Views

Whenever I run MPI application, it seems rank numbers get different.

Can I fix those MPI rank number affinity?

0 Kudos

Link Copied

1 Reply
Mark_L_Intel
Moderator
‎02-01-2016 06:59 PM
506 Views

Hello,

   It sounds like MPI Process Pinning is not working? It should. Could you provide your job script and launching mpirun command? Meanwhile, here are defaults settings for Process Pinning:

https://software.intel.com/en-us/node/561772

You can search through the online documentation regarding each of these settings. Of course, please do ask questions as well.

Cheers,

Mark

 

 

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.