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Q: NUMA support?

 
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Brian Dobbins



Joined: 07 Sep 2004
Posts: 4

PostPosted: Wed Sep 27, 2006 7:51 am    Post subject: Q: NUMA support? Reply with quote

Hi Mat,

In the release notes for 6.2 on page 29 in the table on 'features and operating systems', it mentions that SLES 10.0 and SuSE 10.1 support NUMA libraries for optimized placement of data in memory, but FC5, for example, does not.

What is required by PGI for proper NUMA allocation on these platforms where, by default, this is not supported? Is it as simple as a new kernel with NUMA features enabled, or a more up-to-date libnuma/numactl?

Many thanks,
- Brian

(This is for a multi-core Opteron system)
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Brian Dobbins



Joined: 07 Sep 2004
Posts: 4

PostPosted: Wed Sep 27, 2006 9:13 am    Post subject: NTPL support Reply with quote

Following up on this with another question (or, presumably, pointing out a typo?):

The release notes say, in the same table mentioned above, that SLES 10 does not support NPTL, but the SuSE website shown below seems to counter this:

http://developer.novell.com/wiki/index.php/SUSE_Linux_Porting_Advisories
(See first section)

I assume, then, that PGI is NPTL-aware on SLES 10?

Thanks,
- Brian
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mkcolg



Joined: 30 Jun 2004
Posts: 6129
Location: The Portland Group Inc.

PostPosted: Wed Sep 27, 2006 1:59 pm    Post subject: Reply with quote

Hi Brian,

I think they're both typo since I believe FC5 supports NUMA and SLES10 supports NPTL. I created a technical problem report (TPR#3957) and have asked our documentation writers to investigate.

Thanks for the report,
Mat
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