HiPERiSM - High Performance Algorism Consulting
Services for performance analysis of Linux clusters:
- Linux platform compiler evaluation: Intel, and PGI
- Linux cluster IA-32 & IA-64 hardware benchmarking.
- Applications benchmarking on Linux clusters.
Some sample performance analyses from the technical reports pages:
- MPI bandwidth comparison of the SGI Altix versus new Quad-core nodes
- MPI Parallel efficiency for CMAQ on a 300+ core cluster
- The Stommel Ocean Model (in a Fortran 77 MPI version) with the Pentium III SSE instruction set using the Portland Group Compiler ( for problem sizes 1000 x 1000 to 10,000 x 10,000.
- For the latest results see the current year's report(s) at this list for progress with CMAQ and AERMOD
Table 4.6. Parallel efficiency for the MPI results with CMAQ 4.6.1 using the EBI ROS3 solvers.
|
Col x Row = NP |
MPI parallel efficiency |
|
|
EBI |
ROS3 |
|
|
1 x 1 = 1 |
1.00 |
1.00 |
|
1 x 2 = 2 |
0.90 |
0.96 |
|
2 x 2 = 4 |
0.76 |
0.88 |
|
2 x 4 = 8 |
0.64 |
0.71 |
|
2 x 8 = 16 |
0.47 |
0.54 |
|
4 x 4 = 16 |
0.42 |
0.52 |
HiPERiSM Consulting, LLC, (919) 484-9803 (Voice)
(919) 806-2813 (Facsimile)