Monday, September 6, 2004

Running ROMS on clusters - speed comparison

From Rich Signell's Blog, a comparison of clustered computers. Our cluster comes out pretty well.


ROMS "small" benchmark


Here's what I've got so far for the ROMS "BENCHMARK1" test:
(ROMS/TOMS 2.1 - Benchmark Test, Idealized Southern Ocean
Resolution, Grid 01: 0512x0064x030):

8 cpu, 8 node, Scott Doney's 2.8 GHz Xeon cluster (MPI/MPICH, Linux,Myrinet) 2.37 minutes
8 cpu, 8 node, Rob Hetland's 2.8 GHz P4 cluster (MPI/LAM, Linux,Gigabit) 3.95 minutes
8 cpu, 4 node, Scott Doney's 2.8 GHz Xeon cluster (MPI/MPICH, Linux,Myrinet) 4.38 minutes

4 cpu, 4 node, Rob Hetland's 2.8 GHz P4 cluster (MPI/LAM, Linux,Gigabit) 7.43 minutes
4 cpu, 1 node, USGS Alpha ES40 (MPI/HP, Tru64) 9.83 minutes
4 cpu, 1 node, USGS Alpha ES40 (OpenMP, Tru64) 9.53 minutes
4 cpu, 1 node, ERDC Alpha SC40 (MPI/HP, Tru64) 9.83 minutes

2 cpu, 1 node, Sandro Carniel's Dual 1.3 GHz Itanium II (OpenMP, Linux) 10.82 minutes
2 cpu, 2 node, Rob Hetland's 2.8 GHz P4 cluster (MPI/LAM, Linux,Gigabit) 12.53 minutes
2 cpu, 1 node, John Warner's Dual 3.0 GHz Xeon (OpenMP, Cygwin) 16.56 minutes
2 cpu, 1 node, USGS Alpha ES40: (OpenMP, Tru64) 17.68 minutes

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