On 02/07/2013 01:34 PM, Szilárd Páll wrote:
Please make sure that nvididia-smi or the deviceQuery SDK tool show all
four GPUs. If that is the case and mdrun still shows only two, please file
a bug report with you OS info and a log file attached.
Cheers,
--
Szilárd
no, it showed two. I don't know why it only work in beta version it can
recognize 4 GPU, but in final version only 2.... The fact is that the
beta version use -np 4 can get double speed. The GTX590 have two core,
so two GPU have 4 core.
here is the log for nvidia-sim:
Thu Feb 7 17:27:10 2013
+------------------------------------------------------+
| NVIDIA-SMI 2.285.05 Driver Version: 285.05.33 |
|-------------------------------+----------------------+----------------------+
| Nb. Name | Bus Id Disp. | Volatile ECC SB
/ DB |
| Fan Temp Power Usage /Cap | Memory Usage | GPU Util.
Compute M. |
|===============================+======================+======================|
| 0. GeForce GTX 590 | 0000:0C:00.0 N/A | N/A N/A |
| 0% 55 C N/A N/A / N/A | 22% 336MB / 1535MB | N/A Default |
|-------------------------------+----------------------+----------------------|
| 1. GeForce GTX 590 | 0000:0B:00.0 N/A | N/A N/A |
| 43% 57 C N/A N/A / N/A | 0% 5MB / 1535MB | N/A Default |
|-------------------------------+----------------------+----------------------|
| Compute processes: GPU Memory |
| GPU PID Process name Usage |
|=============================================================================|
| 0. ERROR: Not
Supported |
| 1. ERROR: Not
Supported |
+-----------------------------------------------------------------------------+
here is the log for mdrun:
Program mdrun_mpi, VERSION 4.6
Source code file:
/home/albert/Documents/2013-02-06/gromacs-4.6/src/gmxlib/gmx_detect_hardware.c,
line: 356
Fatal error:
Incorrect launch configuration: mismatching number of PP MPI processes
and GPUs per node.
mdrun_mpi was started with 4 PP MPI processes per node, but only 2 GPUs
were detected.
For more information and tips for troubleshooting, please check the GROMACS
website at http://www.gromacs.org/Documentation/Errors
-------------------------------------------------------
"I Like You. I Will Kill You Last" (Tyler in Fishtank)
Error on node 0, will try to stop all the nodes
Halting parallel program mdrun_mpi on CPU 0 out of 4
--
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