RE: [PATCH] fix topology initialization

From: Chen, Kenneth W <>
Date: 2003-10-18 05:22:17
Is there any libnuma code available somewhere (library, kernel patch,

-----Original Message-----
[] On Behalf Of Martin K.
Sent: Friday, October 17, 2003 11:51 AM
To: Christoph Hellwig
Subject: Re: [PATCH] fix topology initialization

>>>>> "Christoph" == Christoph Hellwig <> writes:

>> I think this will provide some of the info that hwgfs provides, but
>> not all.  We still need a way to map PCI busses to nodes (or
>> cpumasks, whatever makes sense)

Matthew Dobson has worked on PCI affinity.  I'm on the road this week
and have not had a chance to test his latest patch on Altix yet.

Christoph> We should have this in the topology API already in a
Christoph> generic fashion.  Do you need it in userland aswell?

The tentative plan is to use libnuma to export the information to
application developers.

>> and a way to map nodes & busses to physical, rack mounted bricks.

Christoph> Well, that's a SN-specific thing.  But it could be
Christoph> implemented similar to the current toplogy API.  What do
Christoph> you actually need this for?

System administrator diagnostics.  We'll need to do this with
a set of SN2-specific utilities.

Martin K. Petersen	Silicon Graphics, Inc.
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Received on Fri Oct 17 15:29:03 2003

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