On 4/26/13 3:37 PM, Albert wrote:
Hello:

  I am going to run gromacs with command:

mpirun -np 4 mdrun_mpi -s em.tpr -c em.gro -v -g em.log -gpu_id #0, #2, #3, #4


but it failed with messages:

Program mdrun_mpi, VERSION 4.6.1
Source code file:
/home/albert/install/source/gromacs-4.6.1/src/gmxlib/statutil.c, line: 364

Fatal error:
Expected a string argument for option -gpu_id

For more information and tips for troubleshooting, please check the GROMACS
website at http://www.gromacs.org/Documentation/Errors
-------------------------------------------------------


The -gpu_id option needs a continuous string of identifiers (see examples on http://www.gromacs.org/Documentation/Acceleration_and_parallelization). Anything separated by a space is interpreted as a new command-line argument.

What you want is -gpu_id 0234

-Justin

--
========================================

Justin A. Lemkul, Ph.D.
Research Scientist
Department of Biochemistry
Virginia Tech
Blacksburg, VA
jalemkul[at]vt.edu | (540) 231-9080
http://www.bevanlab.biochem.vt.edu/Pages/Personal/justin

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