On Tue, Aug 06, 2002, Jim wrote:
>
> number of processors must be a power of 2, and no greater than 128:
This is a message generated by sander; with the (default) BTREE option in
version 7, the number of processors indeed must be a power of 2. It has
nothing to do with your MPI implementation.
You can remove this restriction by adding "-DnoBTREE" to your MACHINEFLAGS
variable (in the MACHINE file) and re-compiling. This change might not
even cost much in performance if your MPI has a good implementation of global
gather/scatters (MPICH does not have very efficient implementations here.)
..hope this helps...dac
--
==================================================================
David A. Case | e-mail: case_at_scripps.edu
Dept. of Molecular Biology, TPC15 | fax: +1-858-784-8896
The Scripps Research Institute | phone: +1-858-784-9768
10550 N. Torrey Pines Rd. | home page:
La Jolla CA 92037 USA | http://www.scripps.edu/case
==================================================================
Received on Tue Aug 06 2002 - 09:40:33 PDT
