#!SP2 ##16 Thin node system at University of Southampton, UK, June 1995 ##IBM 390 Power2 nodes, 62.5MHz, 128MByte Memory, 2*2GByte SCSI Disk ##Compiler version : xlc 1.3.0.19 ##Operating system : AIX 3.2.5 #Benchmarker was Dr Simeon Warner ================================================= === === === GENESIS / PARKBENCH Distributed Memory === === Benchmarks === === === === COMMS2 === === === === Program: Message Exchange === === Version: PVM 3.1 Fortran 77 === === Authors: Roger W. Hockney === === Ian Glendinning === === Ade Miller === === Updates: Jun 1994 - Release 3.0 === === Updates: Apr 1994 - Release 2.3 === === Jun 1993 - Release 2.2 === === === ================================================= The measurement time requested for each test case was 1.00E+00 seconds No distinction was made between long and short messages Zero length messages were used in least squares fitting Case LENGTH(B) TIME(sec) RINF(B/s) N1/2(B) %error fit 1 0 1.371E-04 0.000E+00 0.000E+00 0.000E+00 2 1 1.426E-04 1.801E+05 2.469E+01 0.000E+00 3 2 1.399E-04 7.027E+05 9.727E+01 1.391E+00 4 4 1.039E-04 -1.122E+05 -1.644E+01 8.168E+00 5 6 1.868E-04 2.070E+05 2.680E+01 1.299E+01 6 8 1.156E-04 -6.897E+06 -9.529E+02 2.251E+01 7 10 1.412E-04 6.567E+06 9.027E+02 1.709E+01 8 20 1.415E-04 5.067E+06 6.958E+02 1.595E+01 9 30 1.566E-04 1.808E+06 2.452E+02 1.368E+01 10 40 1.437E-04 3.163E+06 4.335E+02 1.430E+01 11 50 1.431E-04 4.923E+06 6.790E+02 1.376E+01 12 60 1.474E-04 5.561E+06 7.683E+02 1.280E+01 13 70 1.470E-04 6.437E+06 8.911E+02 1.234E+01 14 80 1.499E-04 6.660E+06 9.224E+02 1.167E+01 15 90 1.654E-04 4.835E+06 6.654E+02 1.036E+01 16 100 1.611E-04 4.615E+06 6.343E+02 1.030E+01 17 110 1.610E-04 4.633E+06 6.369E+02 1.000E+01 18 120 1.619E-04 4.717E+06 6.488E+02 9.671E+00 19 130 1.640E-04 4.770E+06 6.564E+02 9.290E+00 20 140 1.670E-04 4.767E+06 6.559E+02 8.892E+00 21 150 1.712E-04 4.686E+06 6.443E+02 8.472E+00 22 160 1.720E-04 4.674E+06 6.425E+02 8.237E+00 23 170 1.694E-04 4.812E+06 6.625E+02 8.193E+00 24 180 1.692E-04 4.990E+06 6.885E+02 8.059E+00 25 190 1.681E-04 5.227E+06 7.232E+02 7.995E+00 26 200 1.679E-04 5.485E+06 7.611E+02 7.900E+00 27 210 1.660E-04 5.820E+06 8.105E+02 7.930E+00 28 220 1.652E-04 6.196E+06 8.661E+02 7.928E+00 29 230 1.659E-04 6.557E+06 9.197E+02 7.837E+00 30 240 1.675E-04 6.872E+06 9.665E+02 7.689E+00 31 250 1.665E-04 7.238E+06 1.021E+03 7.686E+00 32 260 1.702E-04 7.478E+06 1.057E+03 7.431E+00 33 270 1.680E-04 7.812E+06 1.107E+03 7.467E+00 34 280 1.675E-04 8.180E+06 1.163E+03 7.445E+00 35 290 1.684E-04 8.521E+06 1.214E+03 7.348E+00 36 300 1.710E-04 8.770E+06 1.252E+03 7.160E+00 37 400 1.804E-04 9.178E+06 1.314E+03 6.726E+00 38 600 1.922E-04 1.030E+07 1.489E+03 6.327E+00 39 800 2.048E-04 1.158E+07 1.689E+03 5.952E+00 40 1000 2.114E-04 1.308E+07 1.925E+03 5.818E+00 41 2000 2.557E-04 1.653E+07 2.477E+03 5.008E+00 42 5000 3.247E-04 2.592E+07 3.999E+03 4.658E+00 43 10000 6.610E-04 2.074E+07 3.145E+03 2.618E+00 44 20000 1.283E-03 1.828E+07 2.721E+03 1.639E+00 45 30000 1.746E-03 1.860E+07 2.781E+03 1.213E+00 46 40000 2.198E-03 1.910E+07 2.878E+03 1.061E+00 ------------------------ COMMS2: Message Exchange ------------------------ Result Summmary --------------- rinf = 19.097 MByte/s, nhalf = 2878.285 Byte, startup = 150.718 us