Dear:
I've got two GTX690 in a a workstation and I found that when I run the
md production with following two command:
mpirun -np 4 md_run_mpi
or
mpirun -np 2 md_run_mpi
the efficiency are the same..... I notice that gromacs can detect 4 GPU
(probably because GTX690 have two core..):
4 GPUs detected on host node4:
#0: NVIDIA GeForce GTX 690, compute cap.: 3.0, ECC: no, stat: compatible
#1: NVIDIA GeForce GTX 690, compute cap.: 3.0, ECC: no, stat: compatible
#2: NVIDIA GeForce GTX 690, compute cap.: 3.0, ECC: no, stat: compatible
#3: NVIDIA GeForce GTX 690, compute cap.: 3.0, ECC: no, stat: compatible
why the "-np 2" and "-np 4" are the same efficiency? shouldn't it be
faster for "-np 4" ?
thank you very much
Albert
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