cluster:109
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cluster:109 [2013/02/02 15:02] hmeij [Lammps GPU Testing (EC)] |
cluster:109 [2013/02/02 15:30] hmeij [Lammps GPU Testing (EC)] |
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| CPU only 1 hour 5 mins | CPU only 1 hour 5 mins | ||
| 1 GPU 5 mins and 15 secs (a 18-19 times peed up) | 1 GPU 5 mins and 15 secs (a 18-19 times peed up) | ||
| - | 2 GPUs 2 mins (see below) | + | 2 GPUs 2 mins |
| + | |||
| + | Above results seems overall a bit slower that at other vendor, but same pattern. | ||
| - | Francis' | + | Francis' |
| - | ^3d Lennard-Jones melt: for 10,000 steps with 32,000 atoms^ | + | ^3d Lennard-Jones melt: for 10,000 steps with 32,000 atoms^^^^^^ |
| |CPU only| -np 1 | -np 6 | -np 12 | -np 24 | -np 36 | | |CPU only| -np 1 | -np 6 | -np 12 | -np 24 | -np 36 | | ||
| - | |time| 329s | 63s | 39s | 29s | 45s | | + | |loop times| 329s | 63s | 39s | 29s | 45s | |
| - | |GPU only| 1xK20 | 2xK20 | 3xK20 | 4xK20 | -np 1-4 | | + | |GPU only| 1xK20 | 2xK20 | 3xK20 | 4xK20 | |
| - | |time| 28s | 16s | 11s | 10s | | | + | |loop times| 28s | 16s | 11s | 10s | | |
| - | ^3d Lennard-Jones melt: for 10,000 steps with 32,000 atoms^ | + | ^3d Lennard-Jones melt: for 100,000 steps with 32,000 atoms^^^^^^ |
| - | + | |GPU only| 1xK20 | 2xK20 | 3xK20 | 4xK20 | (-np 1-4) | | |
| + | |loop times| | ||
| + | * Serial' | ||
| + | * GPU's serial time matches MPI -np 24 and can be further reduced to 10s, a 3x speed up | ||
cluster/109.txt · Last modified: 2013/10/16 15:13 by hmeij
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