Re: [Beowulf] Let's just all go home then

2013-08-14 Thread Greg Lindahl
TL;DR: when using only 2 or 4 out of 8 total cores, the virtualized gizmo manages better memory locality and better cache usage because of less motion of processes to different cores. In HPC, we generally lock processes to cores, and they should done this, too. Even shorter: Pilot error, nothing t

Re: [Beowulf] Let's just all go home then

2013-08-14 Thread Joe Landman
On 08/14/2013 03:10 PM, Douglas Eadline wrote: > > "When Virtualized HPC Speeds Past Bare Metal" > >http://insidehpc.com/2013/08/14/when-virtualized-hpc-speeds-past-bare-metal > > Darn, I wish I had that secret virtual sauce, but I am stuck > with that slow inefficient bare metal. However, I am

[Beowulf] Let's just all go home then

2013-08-14 Thread Douglas Eadline
"When Virtualized HPC Speeds Past Bare Metal" http://insidehpc.com/2013/08/14/when-virtualized-hpc-speeds-past-bare-metal Darn, I wish I had that secret virtual sauce, but I am stuck with that slow inefficient bare metal. However, I am going to look into virtualizing the virtualized layer so t