[phenixbb] Specifying the number of processors to run phenix with
Nathaniel Echols
NEchols at lbl.gov
Mon Aug 31 14:22:04 PDT 2009
On Aug 31, 2009, at 1:41 PM, Pavel Afonine wrote:
> phenix.refine cannot use advantage of multiple CPUs. I think the "--
> nproc=4" keyword in your example below is a valid keyword for
> phenix.autobuild, but not for phenix.refine.
Actually, it's just "nproc=4" without the "--".
You can use multiple CPUs for the FFTs in phenix.refine if you compile
from source with OpenMP support (add "--openmp" to the arguments when
running the install script; this requires GCC 4.2 or better, or
Intel's compiler, and perhaps others). I think it will automatically
use as many CPUs as possible. It's probably not going to help much,
though.
-------------------
Nathaniel Echols
Lawrence Berkeley Lab
510-486-5136
NEchols at lbl.gov
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