[gmx-users] Mac OS X cluster system
spoel at xray.bmc.uu.se
Mon Dec 16 17:56:50 CET 2002
On Mon, 2002-12-16 at 17:34, Taeho Kim wrote:
> Hi all,
> I am just wondering whether any one has experienced on Mac OS X system, especially MPI parallel.
> Where can I find( or make) "PPC version of LAM-mpi" as mentioned in the above link?
> I got the results on 2-node Mac cluster(2 machines), but it is not impressive at all.
> (My systems: Gromacs-3.1.5_pre1, fftw-2.1.3, MPICH, two-Mac 1.0 G, OS X 10.2, )
> It took the same amount of time on two-node Mac-cluster as that on a single machine. The above link mentioned the Mac cluster could be "significantly slower" via TCP/IP. Is there any ways to improve the speed of simulation on multiple nodes of Mac system?
if you use the magic options to improve tcp (see mailing list) it should
scale decently for large systems.
Dr. David van der Spoel, Biomedical center, Dept. of Biochemistry
Husargatan 3, Box 576, 75123 Uppsala, Sweden
phone: 46 18 471 4205 fax: 46 18 511 755
spoel at xray.bmc.uu.se spoel at gromacs.org http://xray.bmc.uu.se/~spoel
More information about the gromacs.org_gmx-users