[Beowulf] big read triggers migration and slow memory IO?

[Christopher Samuel]

On 09/07/15 09:45, mathog wrote:

> I don't have anything called hwloc-ls on this system.  What package
> provides it?  This is a Centos system.

It should be in the hwloc package.

Alternatively you can get a newer version directly from:

http://www.open-mpi.org/projects/hwloc/

The graphical "lstopo" included is rather nice for displaying topology
too (it can read PCI info too with the right dependencies).

All the best,
Chris
-- 
 Christopher Samuel        Senior Systems Administrator
 VLSCI - Victorian Life Sciences Computation Initiative
 Email: samuel at unimelb.edu.au Phone: +61 (0)3 903 55545
 http://www.vlsci.org.au/      http://twitter.com/vlsci