PSTSWM Paragon Communication Protocol Performance

Performance Studies using

PSTSWM

Intel Paragon Protocol Performance

(transpose FFT experiment 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
Results:

16x1 Processors / Problem T10L16
Runtime Statistics
min(mean-min)/min(median-min)/min(max-min)/min
  5.0994e-01   0.06   0.06   0.12 
Three Fastest
Protocols
1st2nd3rd
  e3   e2   c2 
       Number of Proctocols With
Runtimes Within X% of Min
1%5%25%
  2   9   29 

32x1 Processors / Problem T10L16
Runtime Statistics
min(mean-min)/min(median-min)/min(max-min)/min
  6.0337e-01   0.12   0.10   0.25 
Three Fastest
Protocols
1st2nd3rd
  e3   e2   c2 
       Number of Proctocols With
Runtimes Within X% of Min
1%5%25%
  1   3   29 

8x1 Processors / Problem T21L8
Runtime Statistics
min(mean-min)/min(median-min)/min(max-min)/min
  1.6390e+00   0.01   0.01   0.04 
Three Fastest
Protocols
1st2nd3rd
  d2   d3   d6 
       Number of Proctocols With
Runtimes Within X% of Min
1%5%25%
  12   29   29 

16x1 Processors / Problem T21L16
Runtime Statistics
min(mean-min)/min(median-min)/min(max-min)/min
  1.7600e+00   0.01   0.01   0.04 
Three Fastest
Protocols
1st2nd3rd
  d2   c2   a3 
       Number of Proctocols With
Runtimes Within X% of Min
1%5%25%
  15   29   29 

32x1 Processors / Problem T21L32
Runtime Statistics
min(mean-min)/min(median-min)/min(max-min)/min
  1.9834e+00   0.03   0.03   0.05 
Three Fastest
Protocols
1st2nd3rd
  c2   e2   e3 
       Number of Proctocols With
Runtimes Within X% of Min
1%5%25%
  4   26   29 

8x1 Processors / Problem T42L16
Runtime Statistics
min(mean-min)/min(median-min)/min(max-min)/min
  1.5353e+01   0.01   0.01   0.04 
Three Fastest
Protocols
1st2nd3rd
  b5   b4   b6 
       Number of Proctocols With
Runtimes Within X% of Min
1%5%25%
  11   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 10:30:16 EDT.