HPL Performance ResultsThe performance achieved by this software package on a few machine configurations is shown below. These results are only provided for illustrative purposes. By the time you read this, those systems have changed, they may not even exist anymore and one can surely not exactly reproduce the state in which these machines were when those measurements have been obtained. To obtain accurate figures on your system, it is absolutely necessary to download the software and run it there. |
OS | Linux 6.2 RedHat (Kernel 2.2.14) |
C compiler | gcc (egcs-2.91.66 egcs-1.1.2 release) |
C flags | -fomit-frame-pointer -O3 -funroll-loops |
MPI | MPIch 1.2.1 |
BLAS | ATLAS (Version 3.0 beta) |
Comments | 09 / 00 |
GRID | 2000 | 5000 | 8000 | 10000 |
---|---|---|---|---|
1 x 4 | 1.28 | 1.73 | 1.89 | 1.95 |
2 x 2 | 1.17 | 1.68 | 1.88 | 1.93 |
4 x 1 | 0.81 | 1.43 | 1.70 | 1.80 |
OS | Linux 6.1 RedHat (Kernel 2.2.15) |
C compiler | gcc (egcs-2.91.66 egcs-1.1.2 release) |
C flags | -fomit-frame-pointer -O3 -funroll-loops |
MPI | MPI GM (Version 1.2.3) |
BLAS | ATLAS (Version 3.0 beta) |
Comments | UTK / ICL - Torc cluster - 09 / 00 |
GRID | 2000 | 5000 | 8000 | 10000 | 15000 | 20000 |
---|---|---|---|---|---|---|
2 x 4 | 1.76 | 2.32 | 2.51 | 2.58 | 2.72 | 2.73 |
4 x 4 | 2.27 | 3.94 | 4.46 | 4.68 | 5.00 | 5.16 |
OS | Tru64 Version 5 |
C compiler | cc Version 6.1 |
C flags | -arch host -tune host -std -O5 |
MPI | -lmpi -lelan |
BLAS | CXML |
Comments | ORNL / NCCS - falcon - 09 / 00 |
CPUS / NODES | GRID | N 1/2 | Nmax | Rmax (Gflops) | Parallel Efficiency |
---|---|---|---|---|---|
1 / 1 | 1 x 1 | 150 | 6625 | 1.136 | 1.000 |
4 / 1 | 2 x 2 | 800 | 13250 | 4.360 | 0.960 |
16 / 4 | 4 x 4 | 2300 | 26500 | 17.00 | 0.935 |
64 / 16 | 8 x 8 | 5700 | 53000 | 67.50 | 0.928 |
256 / 64 | 16 x 16 | 14000 | 106000 | 263.6 | 0.906 |