nwARGOS river benchmark 
Molecular dynamics simulation of 5,832 SPC/E water molecules
Timings are given for a molecular dynamics simulation of 5,832 SPC/E water molecules
subject to periodic boundary conditions, in the NVT ensemble. These timings were 
obtained from simulations of 1000 steps, and reflect the wall-clock time of a
single molecular dynamics step. The setup time and time for periodic recording of 
coordinates and velocities is not included.
|  | KSR-2 | IBM SP-2 | 
| 4 nodes | 6.118019 | 3.023760 | 
| 8 nodes | 2.866662 | 1.664759 | 
| 27 nodes | 0.889270 |  | 
| 72 nodes | 0.408092 |  | 
Speedups relative to the 4 node timings
|  | KSR-2 | IBM SP-2 | 
| 4 nodes | 4.0 | 4.0 | 
| 8 nodes | 8.5 | 7.3 | 
| 27 nodes | 27.5 |  | 
| 72 nodes | 60.0 |  |