PSTSWM Origin2000 Communication Protocol Performance

Performance Studies using

PSTSWM

SGI/Cray Research Origin2000 Protocol Performance

(distributed FFT experiment C)

Date/Person: May 11, 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: distributed FFT
Number of Timesteps: 12
Results:

16x4 Processors (Column Major Ordering) / Problem T42L2
Runtime Statistics
min(mean-min)/min(median-min)/min(max-min)/min
  7.4434e-02   0.09   0.07   0.19 
Three Fastest
Protocols
1st2nd3rd
  c1   d1   a2 
      Number of Proctocols With
Runtimes Within X% of Min
1%5%25%
  2   3   9 

32x2 Processors (Column Major Ordering) / Problem T42L2
Runtime Statistics
min(mean-min)/min(median-min)/min(max-min)/min
  8.6796e-02   0.10   0.11   0.24 
Three Fastest
Protocols
1st2nd3rd
  c1   d1   a2 
      Number of Proctocols With
Runtimes Within X% of Min
1%5%25%
  2   2   9 

8x8 Processors (Column Major Ordering) / Problem T42L16
Runtime Statistics
min(mean-min)/min(median-min)/min(max-min)/min
  4.7965e-01   0.12   0.15   0.23 
Three Fastest
Protocols
1st2nd3rd
  c1   d1   a1 
      Number of Proctocols With
Runtimes Within X% of Min
1%5%25%
  2   3   9 

16x4 Processors (Column Major Ordering) / Problem T85L4
Runtime Statistics
min(mean-min)/min(median-min)/min(max-min)/min
  4.8263e-01   0.12   0.15   0.23 
Three Fastest
Protocols
1st2nd3rd
  d1   c1   a1 
      Number of Proctocols With
Runtimes Within X% of Min
1%5%25%
  2   3   9 

32x2 Processors (Column Major Ordering) / Problem T85L4
Runtime Statistics
min(mean-min)/min(median-min)/min(max-min)/min
  5.9365e-01   0.11   0.08   0.23 
Three Fastest
Protocols
1st2nd3rd
  c1   d1   a1 
      Number of Proctocols With
Runtimes Within X% of Min
1%5%25%
  2   2   9 

8x8 Processors (Column Major Ordering) / Problem T85L32
Runtime Statistics
min(mean-min)/min(median-min)/min(max-min)/min
  4.7916e+00   0.08   0.12   0.15 
Three Fastest
Protocols
1st2nd3rd
  d1   c1   a1 
      Number of Proctocols With
Runtimes Within X% of Min
1%5%25%
  2   4   9 

16x4 Processors (Column Major Ordering) / Problem T42L2
Runtime Statistics
min(mean-min)/min(median-min)/min(max-min)/min
  7.4434e-02   0.09   0.07   0.19 
Three Fastest
Protocols
1st2nd3rd
  c1   d1   a2 
      Number of Proctocols With
Runtimes Within X% of Min
1%5%25%
  2   3   9 

32x2 Processors (Column Major Ordering) / Problem T42L2
Runtime Statistics
min(mean-min)/min(median-min)/min(max-min)/min
  8.6796e-02   0.10   0.11   0.24 
Three Fastest
Protocols
1st2nd3rd
  c1   d1   a2 
      Number of Proctocols With
Runtimes Within X% of Min
1%5%25%
  2   2   9 

8x8 Processors (Column Major Ordering) / Problem T42L16
Runtime Statistics
min(mean-min)/min(median-min)/min(max-min)/min
  4.7965e-01   0.12   0.15   0.23 
Three Fastest
Protocols
1st2nd3rd
  c1   d1   a1 
      Number of Proctocols With
Runtimes Within X% of Min
1%5%25%
  2   3   9 

16x4 Processors (Column Major Ordering) / Problem T85L4
Runtime Statistics
min(mean-min)/min(median-min)/min(max-min)/min
  4.8263e-01   0.12   0.15   0.23 
Three Fastest
Protocols
1st2nd3rd
  d1   c1   a1 
      Number of Proctocols With
Runtimes Within X% of Min
1%5%25%
  2   3   9 

32x2 Processors (Column Major Ordering) / Problem T85L4
Runtime Statistics
min(mean-min)/min(median-min)/min(max-min)/min
  5.9365e-01   0.11   0.08   0.23 
Three Fastest
Protocols
1st2nd3rd
  c1   d1   a1 
      Number of Proctocols With
Runtimes Within X% of Min
1%5%25%
  2   2   9 

8x8 Processors (Column Major Ordering) / Problem T85L32
Runtime Statistics
min(mean-min)/min(median-min)/min(max-min)/min
  4.7916e+00   0.08   0.12   0.15 
Three Fastest
Protocols
1st2nd3rd
  d1   c1   a1 
      Number of Proctocols With
Runtimes Within X% of Min
1%5%25%
  2   4   9 

Patrick H. Worley / ( worleyph@ornl.gov)
Last Modified Monday, 15-Jul-2002 10:06:08 EDT.