[lammps-users] running lammps in parallel under windows

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1

Hello everyone,

Does anybody have experience in running lammps on Windows XP? I have compiled lammps to run in a Windows XP machine with 2 Intel Xeon processors. Is there a way of actually using the 2 processors in my run?

thanks
Jaime

2

Hello everyone,

Does anybody have experience in running lammps on Windows XP? I have
compiled lammps to run in a Windows XP machine with 2 Intel Xeon processors.

hello jaime!

are you certain that those are two real processors and not
just a single processor with hyperthreading? in the latter
case there is no gain in running in parallel (for which you
just have to compile an MPI library and compile lammps with it).

cheers,
   axel.

3

Yes. I use cygwin on top of Windows XP and run LAMMPS on my box’s 2 procs. Check out cygwin at: www.cygwin.com

Paul

4

Hi Axel,

Yes. There are two processors physically available. I’ll try Paul’s suggestion with Cygwin.

thanks
Jaime

5

Hi Paul,

I have installed cygwin with all the packages available, but when I used “make cygwin” I got the following error

mpicxx: command not found

how can implement mpi in cygwin?

thanks
Jaime

6

Hi Paul,

I have installed cygwin with all the packages available, but when I used
"make cygwin" I got the following error

mpicxx: command not found

how can implement mpi in cygwin?

by downloading and compiling an MPI implementation (if
not precompiled versions exist, that is).

e.g. the one from http://www.open-mpi.org
or the one at http://www.mcs.anl.gov/mpich/

cheers,
   axel.

7

Jaime,

Download and install mpich2. You should be able to find it by googling for it.

Paul