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: MPI
Parallel Algorithm: srtrans
Number of Timesteps: 12
Results:

16x1 Processors / Problem T10L16
Runtime Statistics
min(mean-min)/min(median-min)/min(max-min)/min
  1.0293e-01   0.12   0.11   0.30 
Three Fastest
Protocols
1st2nd3rd
  a1   a6   a0 
      Number of Proctocols With
Runtimes Within X% of Min
1%5%25%
  4   7   23 

32x1 Processors / Problem T10L16
Runtime Statistics
min(mean-min)/min(median-min)/min(max-min)/min
  1.9472e-01   0.17   0.07   0.40 
Three Fastest
Protocols
1st2nd3rd
  a0   a1   a6 
      Number of Proctocols With
Runtimes Within X% of Min
1%5%25%
  3   9   15 

8x1 Processors / Problem T21L8
Runtime Statistics
min(mean-min)/min(median-min)/min(max-min)/min
  1.7940e-01   0.09   0.12   0.16 
Three Fastest
Protocols
1st2nd3rd
  a1   c1   a6 
      Number of Proctocols With
Runtimes Within X% of Min
1%5%25%
  2   8   25 

16x1 Processors / Problem T21L16
Runtime Statistics
min(mean-min)/min(median-min)/min(max-min)/min
  2.3230e-01   0.10   0.12   0.21 
Three Fastest
Protocols
1st2nd3rd
  a1   c1   a6 
      Number of Proctocols With
Runtimes Within X% of Min
1%5%25%
  1   6   25 

32x1 Processors / Problem T21L32
Runtime Statistics
min(mean-min)/min(median-min)/min(max-min)/min
  3.7150e-01   0.12   0.10   0.31 
Three Fastest
Protocols
1st2nd3rd
  a1   a0   a6 
      Number of Proctocols With
Runtimes Within X% of Min
1%5%25%
  2   6   23 

8x1 Processors / Problem T42L16
Runtime Statistics
min(mean-min)/min(median-min)/min(max-min)/min
  1.7295e+00   0.06   0.04   0.12 
Three Fastest
Protocols
1st2nd3rd
  a6   a1   a4 
      Number of Proctocols With
Runtimes Within X% of Min
1%5%25%
  2   13   25 

Patrick H. Worley / ( worleyph@ornl.gov)
Last Modified Monday, 15-Jul-2002 10:06:54 EDT.