On Thu, Feb 21, 2013 at 12:23:14PM +0100, Paul Kapinos wrote:
The MTT-Parameter mess is well-known and the good solution is to set the MTT parameter high. In other case you never know what you will get - your application may hang, block the IB interface, run bit slower, run very slow...http://www.open-mpi.org/faq/?category=openfabrics#ib-low-reg-mem
As I wrote: I'm aware of this FAQ entries -but: you can't set the log_num_mtt parameter if you're using a Debian/vanilla kernel: the mlx4_core-module does not offer this parameter. MfG/Sincerely, Stefan Friedel -- IWR * 523 * INF 368 * 69120 Heidelberg T +49 6221 548240 * F +49 6221 545224 stefan.frie...@iwr.uni-heidelberg.de
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