CCM/MP-2D SP3-200 Parallel Algorithm Comparisons

Performance Studies using

CCM/MP-2D

IBM SP3-200 Winterhawk I CCM/MP-2D
Parallel Algorithm Comparison

Date/Person: June, 1999 / P. Worley
Platform: IBM SP3 at Oak Ridge National Laboratory (morgan.ccs.ornl.gov):
     62 2-way Winterhawk I SMP nodes (200 MHz POWER3 with 4MB L2 cache, equivalent to RS/6000 Model 260)
Environment: AIX 4.3.2;   PSSP 3.1
Compilation Options: mpxlf -O3 -qarch=auto -qtune=auto -qcache=auto
Math Library: ESSL
Communication Library: MPI
Problem Size: T170L18
Number of Timesteps: 2-16
Results:

32 Processors / Problem T170L18
Optimal Algorithm
minalgorithmaspect rationmapping
  7.4471e+01   d2    2x16    -1  

64 Processors / Problem T170L18
Optimal Algorithm
minalgorithmaspect rationmapping
  4.2101e+01   t2    4x16    -1  

Patrick H. Worley / ( worleyph@ornl.gov)
Last Modified Monday, 15-Jul-2002 10:17:30 EDT.