Partitioning (ParMETIS and RCB-1D) with port element grouping
NERSC IBM SP3 for 1.0 ns runtime
| # of Processors | ParMETIS Max Adj. Procs | ParMETIS Speedup | ParMETIS Runtime | RCB-1D Runtime | RCB-1D Speedup | RCB-1D Max Adj. Procs |
| 8 | 2 | 8/8 | 3856.2* | 3826.5* | 8/8 | 2 |
| 16 | 3 | 7.2/16 | 4257.0 | 2405.4 | 2 | |
| 32 | 3 | 14.3/32 | 2158.3 | 1820.7 | 2 | |
| 64 | 7 | 31.0/64 | 995.1* | 889.3 | 3 | |
| 128 | 7 | 47.5/128 | 649.6 | 599.0 | 6 | |
| 256 | 9 | 69.7/256 | 442.9* | 516.5 | 11 | |
| 512 | 12 | 70.4/256 | 438.1* | 531.1 | 21 |
Partitioning (ParMETIS and RCB-1D) without port element grouping
NERSC IBM SP3 for 1.0 ns runtime
| # of Processors | ParMETIS Max Adj. Procs | ParMETIS Speedup | ParMETIS Runtime | RCB-1D Runtime | RCB-1D Speedup | RCB-1D Max Adj. Procs |
| 8 | 2 | 3930.7* | 3898.6* | 2 | ||
| 16 | 3 | 2703.3* | 2458.5* | 2 | ||
| 32 | 4 | 1455.0 | 1236.6 | 2 | ||
| 64 | 4 | 736.6 | 627.2 | 2 | ||
| 128 | 10 | 643.0 | 265.1 | 2 | ||
| 256 | 11 | 360.0 | 129.2 | 2 | ||
| 512 | 14 | 292.1 | 92.3 | 4 | ||
| 1024 | 16 | 327.5* | 99.0* | 8 |