PSTSWM Paragon Communication Protocol Performance

Performance Studies using

PSTSWM

Intel Paragon Protocol Performance

(transpose LT experiment I-A2 / O(P) swap transpose algorithm)

Date/Person: June 4, 1998 / P. Worley
Platform: Intel Paragon XP/S 150 MP at Oak Ridge National Laboratory:
     1024 MP nodes (3 50-MHz iPSC/860 processors per node)
Environment: Paragon OSF/1 Release 1.0.4 Server 1.4 R1_4_5
f77/Paragon Paragon Version R5.0.3
Code Version: 6.3
Compilation Options: if77 -O4 -Mnodepchk -Knoieee -Msafealloc
Math Library: none
Communication Library: NX
Parallel Algorithm: swtrans
Partition: 4x2, 4x4, or 8x4
Number of Timesteps: 12
Results:

1x16 Processors / Problem T10L16
Runtime Statistics
min(mean-min)/min(median-min)/min(max-min)/min
  4.5950e-01   0.08   0.08   0.14 
Three Fastest
Protocols
1st2nd3rd
  e2   e3   c2 
       Number of Proctocols With
Runtimes Within X% of Min
1%5%25%
  2   8   29 

1x8 Processors / Problem T21L8
Runtime Statistics
min(mean-min)/min(median-min)/min(max-min)/min
  1.5725e+00   0.01   0.01   0.03 
Three Fastest
Protocols
1st2nd3rd
  d3   c2   d2 
       Number of Proctocols With
Runtimes Within X% of Min
1%5%25%
  20   29   29 

1x16 Processors / Problem T21L16
Runtime Statistics
min(mean-min)/min(median-min)/min(max-min)/min
  1.6326e+00   0.02   0.02   0.03 
Three Fastest
Protocols
1st2nd3rd
  e3   e2   c2 
       Number of Proctocols With
Runtimes Within X% of Min
1%5%25%
  5   29   29 

1x32 Processors / Problem T21L32
Runtime Statistics
min(mean-min)/min(median-min)/min(max-min)/min
  1.7800e+00   0.04   0.03   0.08 
Three Fastest
Protocols
1st2nd3rd
  e3   e2   c2 
       Number of Proctocols With
Runtimes Within X% of Min
1%5%25%
  3   20   29 

1x8 Processors / Problem T42L16
Runtime Statistics
min(mean-min)/min(median-min)/min(max-min)/min
  1.3973e+01   0.01   0.01   0.03 
Three Fastest
Protocols
1st2nd3rd
  d6   b5   b6 
       Number of Proctocols With
Runtimes Within X% of Min
1%5%25%
  16   29   29 

DISCUSSION

The Paragon processor grid partitions were chosen to match those used for the October, 1994 SUNMOS data.
Patrick H. Worley / ( worleyph@ornl.gov)
Last Modified Monday, 15-Jul-2002 10:30:13 EDT.