PSTSWM Origin2000 Communication Protocol Performance

Performance Studies using

PSTSWM

SGI/Cray Research Origin2000 Protocol Performance

(transpose FFT experiment A / O(log P) 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: logtrans
Number of Timesteps: 12
Results:

16x1 Processors / Problem T10L16
Runtime Statistics
min(mean-min)/min(median-min)/min(max-min)/min
  9.1426e-02   0.14   0.13   0.23 
Three Fastest
Protocols
1st2nd3rd
  a1   c1   c2 
      Number of Proctocols With
Runtimes Within X% of Min
1%5%25%
  2   2   10 

32x1 Processors / Problem T10L16
Runtime Statistics
min(mean-min)/min(median-min)/min(max-min)/min
  1.0793e-01   0.05   0.06   0.12 
Three Fastest
Protocols
1st2nd3rd
  a2   c2   c1 
      Number of Proctocols With
Runtimes Within X% of Min
1%5%25%
  3   5   10 

8x1 Processors / Problem T21L8
Runtime Statistics
min(mean-min)/min(median-min)/min(max-min)/min
  2.2025e-01   0.12   0.12   0.22 
Three Fastest
Protocols
1st2nd3rd
  a1   c1   d1 
      Number of Proctocols With
Runtimes Within X% of Min
1%5%25%
  2   2   10 

16x1 Processors / Problem T21L16
Runtime Statistics
min(mean-min)/min(median-min)/min(max-min)/min
  3.0303e-01   0.14   0.15   0.25 
Three Fastest
Protocols
1st2nd3rd
  a1   c1   d1 
      Number of Proctocols With
Runtimes Within X% of Min
1%5%25%
  2   2   10 

32x1 Processors / Problem T21L32
Runtime Statistics
min(mean-min)/min(median-min)/min(max-min)/min
  3.7661e-01   0.19   0.26   0.32 
Three Fastest
Protocols
1st2nd3rd
  a1   c1   d1 
      Number of Proctocols With
Runtimes Within X% of Min
1%5%25%
  1   2   5 

8x1 Processors / Problem T42L16
Runtime Statistics
min(mean-min)/min(median-min)/min(max-min)/min
  2.4515e+00   0.09   0.10   0.15 
Three Fastest
Protocols
1st2nd3rd
  a1   a2   c1 
      Number of Proctocols With
Runtimes Within X% of Min
1%5%25%
  1   1   10 

Patrick H. Worley / ( worleyph@ornl.gov)
Last Modified Monday, 15-Jul-2002 10:06:29 EDT.