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: T42L18
Number of Timesteps: 719
Results:

Optimal Algorithms
processorsminalgorithmaspect rationmapping
  1    2.5981e+02   -    1 x 1    -  
  2    1.3724e+02   t2    1 x 2    -  
  4    7.8572e+01   t2    1 x 4    -  
  8    3.8542e+01   d1    1 x 8    -  
  16    2.0693e+01   d1    1 x 16    -  
  32    1.2278e+01   d0    2 x 16    +1  
  64    7.8140e+00   t5    4 x 16    -1  
  128    4.9710e+00   t5    8 x 16    -1  

Patrick H. Worley / ( worleyph@ornl.gov)
Last Modified Monday, 15-Jul-2002 10:06:00 EDT.