Cray T3D at Edinburgh Parallel Computing Center
timings collected by the T3D In-Depth Support Team at EPCC, provided by
Dr. Stephen P. Booth


System Description
------------------

11/28-29/95
  Cray T3D at Edinburgh Parallel Computing Center
	Torus PE dimensions :	16 x 4 x 6
  timings collected by the T3D In-Depth Support Team at EPCC, provided by
    Dr. Stephen P. Booth
  Cray CF77_M   Version 6.0.4.3 (6.62)  11/21/95 09:31:49
  Cray GPP_M    Version 6.0.4.2 (6.17)  11/21/95 09:31:49
  Cray CFT77_M Version 6.2.1.3  (270979) 11/21/95 09:31:49
  cf77 flags: -dp -C cray-t3d -Oscalar3 (except for routine input.F)
              -dp -C cray-t3d           for routine input.F
  UNICOS Version 8.0.4 / UNICOS-MAX Version 1.3
  CRI/EPCC MPI for T3D: release 1.2a

Timing Tables
-------------
make MACH=t3d COMM=mpi WORKSPACE=6700000

         optimization level 0
T42L16    1x1  734.58  -npes 1
          2x1  445.23  -npes 2
          2x2  233.28  -npes 4
          4x2  121.23  -npes 8
          4x4   59.25  -npes 16
          8x4   30.92  -npes 32
          8x8   17.10  -npes 64
         16x8    9.88  -npes 128

T170L32   8x8  963.69  -npes 64
         16x8  492.88  -npes 128

Notes:
1) Optimization level 1 timings have not yet been collected.

Raw Timing Output Data
----------------------
small problem; level 0 optimization
 0.73458E+03  0.33836E+01  0.34660E+01  0.00000E+00   216  ( 42, 42, 42)  (
128,  64, 16) (2,T,F,F) (   1,   1)   1  (1,10,10,   2,   2,6,6) (0, 0, 0,   1,
  2,6,6)   0         0    4691369
 0.45523E+03  0.20948E+01  0.21386E+01  0.00000E+00   216  ( 42, 42, 42)  (
128,  64, 16) (2,T,F,F) (   2,   1)   1  (1,10,10,   2,   2,6,6) (0, 0, 0,   1,
  2,6,6)   0         0    2412937
 0.23328E+03  0.10711E+01  0.10961E+01  0.00000E+00   216  ( 42, 42, 42)  (
128,  64, 16) (2,T,F,F) (   2,   2)   1  (1,10,10,   2,   2,6,6) (0, 0, 0,   1,
  2,6,6)   0         0    1206801
 0.12123E+03  0.55734E+00  0.56895E+00  0.00000E+00   216  ( 42, 42, 42)  (
128,  64, 16) (2,T,F,F) (   4,   2)   1  (1,10,10,   2,   2,6,6) (0, 0, 0,   1,
  2,6,6)   0         0     637193
 0.59246E+02  0.27170E+00  0.27701E+00  0.00000E+00   216  ( 42, 42, 42)  (
128,  64, 16) (2,T,F,F) (   4,   4)   1  (1,10,10,   2,   2,6,6) (0, 0, 0,   1,
  2,6,6)   0         0     318969
 0.30918E+02  0.14154E+00  0.14422E+00  0.00000E+00   216  ( 42, 42, 42)  (
128,  64, 16) (2,T,F,F) (   8,   4)   1  (1,10,10,   2,   2,6,6) (0, 0, 0,   1,
  2,6,6)   0         0     176549
 0.17096E+02  0.78086E-01  0.79673E-01  0.00000E+00   216  ( 42, 42, 42)  (
128,  64, 16) (2,T,F,F) (   8,   8)   1  (1,10,10,   2,   2,6,6) (0, 0, 0,   1,
  2,6,6)   0         0      88629
 0.98832E+01  0.45207E-01  0.46546E-01  0.00000E+00   216  ( 42, 42, 42)  (
128,  64, 16) (2,T,F,F) (  16,   8)   1  (1,10,10,   2,   2,6,6) (0, 0, 0,   1,
  2,6,6)   0         0      53015

medium problem; level 0 optimization
 0.96369E+03  0.44035E+01  0.44811E+01  0.00000E+00   216  (170,170,170)  (
512, 256, 32) (2,T,F,F) (   8,   8)   1  (1,10,10,   2,   2,6,6) (0, 0, 0,   1,
  2,6,6)   0         0    2805673
 0.49288E+03  0.22674E+01  0.22921E+01  0.00000E+00   216  (170,170,170)  (
512, 256, 32) (2,T,F,F) (  16,   8)   1  (1,10,10,   2,   2,6,6) (0, 0, 0,   1,
  2,6,6)   0         0    1679629