CCM/MP-2D AlphaSC-667 Performance Analysis

Performance Studies using

CCM/MP-2D

Compaq AlphaServer SC CCM/MP-2D
Performance Analysis

Date/Person: April 24-26, 2000 / P. Worley
Platform: Compaq AlphaServer SC at Oar Ridge National Laboratory (falcon.ccs.ornl.gov):
     64 ES40 4-way SMP nodes (667 MHz Alpha 21264a with 8MB L2 cache)
Environment: Digital UNIX V5.0;   RMS 2.36
Compilation Options: f90 -O4 -assume accuracy_sensitive -math_library fast -align dcommons -align records -arch host -tune host
Math Library: none
Communication Library: MPI
Problem Size: T170L18
Number of Timesteps: 575
Results:

Optimal Algorithms
processorsminalgorithmaspect rationmapping
  16    1.4757e+03   d1    1 x 16    -  
  32    7.9645e+02   d0    4 x 8    +1  
  64    4.3386e+02   t6    4 x 16    -1  
  128    2.2562e+02   t4    8 x 16    -1  

Patrick H. Worley / ( worleyph@ornl.gov)
Last Modified Monday, 15-Jul-2002 10:05:59 EDT.