Open MPI logo

Open MPI Development Mailing List Archives

  |   Home   |   Support   |   FAQ   |  

This web mail archive is frozen.

This page is part of a frozen web archive of this mailing list.

You can still navigate around this archive, but know that no new mails have been added to it since July of 2016.

Click here to be taken to the new web archives of this list; it includes all the mails that are in this frozen archive plus all new mails that have been sent to the list since it was migrated to the new archives.

From: Paul H. Hargrove (PHHargrove_at_[hidden])
Date: 2005-12-09 15:31:41

Just recently finished checking. For the collection of Linux hosts I
have access to, the probe results are the same regardless of the choice
of set or get. I agree 100% that "get" is a safer probe.


Jeff Squyres wrote:
> On Dec 9, 2005, at 3:06 PM, Bogdan Costescu wrote:
>>>> rc = sched_setaffinity(0, sizeof(mask), mask);
>> This changes whatever affinity might have been set before this check,
>> for example by a (smart, don't know if such exists now) batch system.
>> I haven't checked if it's possible, but I think that a similar
>> solution based on sched_getaffinity would be much better, as this
>> would not disturb the current settings.
> Paul and I were discussing this earlier (off list). He was
> investigating doing the same check with sched_getaffinity() -- I
> don't know if he has finished checking into that already.
> --
> {+} Jeff Squyres
> {+} The Open MPI Project
> {+}
> _______________________________________________
> devel mailing list
> devel_at_[hidden]

Paul H. Hargrove                          PHHargrove_at_[hidden]
Future Technologies Group
HPC Research Department                   Tel: +1-510-495-2352
Lawrence Berkeley National Laboratory     Fax: +1-510-486-6900