CCM/MP-2D T3E-900 Parallel Algorithm Comparisons

Performance Studies using

CCM/MP-2D

SGI/Cray Research T3E-900 CCM/MP-2D
Parallel Algorithm Comparison

Date/Person: February, 1999 / P. Worley
Platform: T3E-900 at National Energy Research Scientific Computing Center (mcurie.nersc.gov):
   532 450-MHz DEC Alpha EV5 RISC processors
Environment: UNICOS/mk 2.0.3.41
mpt 1.2.1.3
Cray CF90 Version 3.1.0.3
Compilation Options: -dp -Oscalar3 -Wl,-Dstreams=on
Math Library: libsci
Communication Library: MPI
Problem Size: T170L18
Number of Timesteps: 1-15
Results:

64 Processors / Problem T170L18
Optimal Algorithm
minalgorithmaspect rationmapping
  1.0249e+02   t0    2x32    +1  

128 Processors / Problem T170L18
Optimal Algorithm
minalgorithmaspect rationmapping
  5.1672e+01   t0    4x32    -1  

256 Processors / Problem T170L18
Optimal Algorithm
minalgorithmaspect rationmapping
  2.7494e+01   t0    8x32    +1  

512 Processors / Problem T170L18
Optimal Algorithm
minalgorithmaspect rationmapping
  1.5797e+01   t1    16x32    +1  

Patrick H. Worley / ( worleyph@ornl.gov)
Last Modified Monday, 15-Jul-2002 10:28:59 EDT.