Re: [OMPI devel] Consequence of bind-to-core by default

2013-12-19 Thread Ashley Pittman
On 19 Dec 2013, at 13:59, Jeff Squyres (jsquyres) wrote: > > - if we oversubscribe, (possibly) warn about the performance loss of > oversubscription, and don't bind > - don't warn about lack of memory binding > > Thoughts? +1, I hit this myself today. I typically run on a VM and oversubscrib

[OMPI devel] Consequence of bind-to-core by default

2013-12-19 Thread Jeff Squyres (jsquyres)
I notice Absoft's MTT runs are failing due to the change in bind-to-core-by-default: http://mtt.open-mpi.org/index.php?do_redir=2136 I asked Tony, who runs the Absoft MTT runs; he confirms that this particular machine has 1 socket with 2 cores (and we're running -np 4 on this machine). 1. T