PSTSWM Origin2000 Communication Protocol Performance

Performance Studies using

PSTSWM

SGI/Cray Research Origin2000 Protocol Performance

(transpose FFT experiments A / O(P) sendrecv transpose algorithm)

Date/Person: May 8, 1998 / P. Worley
Platform: SGI Origin2000 at Los Alamos National Laboratory (nirvana11):
   128 195-MHz MIPS R10000 processors
Environment: IRIX 6.5
mpt_1.2.0.1
MIPSpro Compilers: Version MIPS pro_7.2
Code Version: 6.3
Compilation Options: f77 -64 -i4 -O3
Math Library: SCSL
Communication Library: SHMEM
Parallel Algorithm: srtrans
Number of Timesteps: 12
Results:

16x1 Processors / Problem T10L16
Runtime Statistics
min(mean-min)/min(median-min)/min(max-min)/min
  7.5688e-02   0.08   0.09   0.17 
Three Fastest
Protocols
1st2nd3rd
  c1   a1   e2 
      Number of Proctocols With
Runtimes Within X% of Min
1%5%25%
  2   5   12 

32x1 Processors / Problem T10L16
Runtime Statistics
min(mean-min)/min(median-min)/min(max-min)/min
  9.1658e-02   0.10   0.11   0.27 
Three Fastest
Protocols
1st2nd3rd
  c1   e2   e1 
      Number of Proctocols With
Runtimes Within X% of Min
1%5%25%
  2   5   11 

8x1 Processors / Problem T21L8
Runtime Statistics
min(mean-min)/min(median-min)/min(max-min)/min
  1.7723e-01   0.07   0.09   0.15 
Three Fastest
Protocols
1st2nd3rd
  c1   e1   a1 
      Number of Proctocols With
Runtimes Within X% of Min
1%5%25%
  1   6   12 

16x1 Processors / Problem T21L16
Runtime Statistics
min(mean-min)/min(median-min)/min(max-min)/min
  2.1911e-01   0.07   0.07   0.13 
Three Fastest
Protocols
1st2nd3rd
  c1   a1   e1 
      Number of Proctocols With
Runtimes Within X% of Min
1%5%25%
  2   5   12 

32x1 Processors / Problem T21L32
Runtime Statistics
min(mean-min)/min(median-min)/min(max-min)/min
  2.7660e-01   0.08   0.07   0.21 
Three Fastest
Protocols
1st2nd3rd
  a1   c1   e2 
      Number of Proctocols With
Runtimes Within X% of Min
1%5%25%
  2   4   12 

8x1 Processors / Problem T42L16
Runtime Statistics
min(mean-min)/min(median-min)/min(max-min)/min
  1.7358e+00   0.09   0.10   0.15 
Three Fastest
Protocols
1st2nd3rd
  a1   b1   a2 
      Number of Proctocols With
Runtimes Within X% of Min
1%5%25%
  1   2   12 

Patrick H. Worley / ( worleyph@ornl.gov)
Last Modified Monday, 15-Jul-2002 10:06:56 EDT.