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cluster:175 [2018/09/22 12:43] hmeij07 [Amber] |
cluster:175 [2018/09/22 12:47] hmeij07 [Lammps] |
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==== Lammps ==== | ==== Lammps ==== | ||
- | We can also not complain about gpu utilization in this example. | + | We can also not complain about gpu utilization in this example. |
On our GTX server best performance was a ratio of 16:4 cpu:gpu for 932,493 tau/day (11x faster than our K20). However scaling the job to a ratio of cpu:gpu of 4:2 yields 819,207 tau/day which means a quad server can deliver about 1.6 million tau/day. | On our GTX server best performance was a ratio of 16:4 cpu:gpu for 932,493 tau/day (11x faster than our K20). However scaling the job to a ratio of cpu:gpu of 4:2 yields 819,207 tau/day which means a quad server can deliver about 1.6 million tau/day. | ||
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gpu=4 mpi=4 | gpu=4 mpi=4 | ||
Performance: | Performance: | ||
- | any mpi>gpu yielded degraded performance. | + | any mpi>gpu yielded degraded performance... |
index, name, temp.gpu, mem.used [MiB], mem.free [MiB], util.gpu [%], util.mem [%] | index, name, temp.gpu, mem.used [MiB], mem.free [MiB], util.gpu [%], util.mem [%] |