elias@uunet.UU.NET (Doug Elias) (09/07/90)
This just in from Eric Barszcz, NASA/Ames, with thanks to same:
-------------
Doug,
Here are some results of single i860 node performance on the NAS kernels.
They were done using the Production Release of the Green Hills Fortran
compiler.
NOTE: The last row of each test should be ignored. It contains the sum
of each column and then the average based on the sums. So, it doesn't
give equal weight to each kernel. It is better to look at the
individual kernels.
Eric Barszcz
barszcz@orville.nas.nasa.gov
---------- NAS Kernels Results ---------
THE NAS KERNEL BENCHMARK PROGRAM
PROGRAM ERROR FP OPS SECONDS MFLOPS
MXM 3.4313E-15 4.1943E+06 3.3510 1.25
CFFT2D 1.2594E-13 4.9807E+06 4.3360 1.15
CHOLSKY 2.8784E-12 1.1052E+06 2.0480 0.54
BTRIX 2.5033E-13 1.6099E+07 12.6550 1.27
GMTRY 2.5999E-13 1.1325E+08 171.1370 0.66
EMIT 1.3303E-15 2.2605E+07 9.7280 2.32
VPENTA 8.4523E-15 6.4858E+05 0.6710 0.97
TOTAL 3.5278E-12 1.6288E+08 203.9260 0.80
8/22/90
Green Hills Compiler (No Optimization Specified)
Single Node Performance (40 MHZ, i860)
THE NAS KERNEL BENCHMARK PROGRAM
PROGRAM ERROR FP OPS SECONDS MFLOPS
MXM 3.4313E-15 4.1943E+06 1.7910 2.34
CFFT2D 1.2594E-13 4.9807E+06 2.3070 2.16
CHOLSKY 2.8784E-12 1.1052E+06 1.6210 0.68
BTRIX 2.5033E-13 1.6099E+07 8.9510 1.80
GMTRY 2.5999E-13 1.1325E+08 144.4150 0.78
EMIT 1.3303E-15 2.2605E+07 9.2530 2.44
VPENTA 8.4523E-15 6.4858E+05 0.5320 1.22
TOTAL 3.5278E-12 1.6288E+08 168.8700 0.96
8/22/90
Green Hills Compiler (-O optimization)
Single Node Performance (40 MHZ, i860)
THE NAS KERNEL BENCHMARK PROGRAM
PROGRAM ERROR FP OPS SECONDS MFLOPS
MXM 3.4313E-15 4.1943E+06 0.8030 5.22
CFFT2D 1.2594E-13 4.9807E+06 1.3540 3.68
CHOLSKY 2.8784E-12 1.1052E+06 0.9360 1.18
BTRIX 2.5033E-13 1.6099E+07 6.6540 2.42
GMTRY 2.5999E-13 1.1325E+08 134.0680 0.84
EMIT 1.3303E-15 2.2605E+07 8.6560 2.61
VPENTA 8.4523E-15 6.4858E+05 0.5150 1.26
TOTAL 3.5278E-12 1.6288E+08 152.9860 1.06
8/22/90
Green Hills Compiler (-OLM optimizations)
Single Node Performance (40 MHZ, i860)
THE NAS KERNEL BENCHMARK PROGRAM
PROGRAM ERROR FP OPS SECONDS MFLOPS
MXM 3.4313E-15 4.1943E+06 3.1080 1.35
CFFT2D 1.2594E-13 4.9807E+06 4.0350 1.23
CHOLSKY 2.8784E-12 1.1052E+06 1.9390 0.57
BTRIX 2.5033E-13 1.6099E+07 11.3340 1.42
GMTRY 2.5999E-13 1.1325E+08 147.7170 0.77
EMIT 1.3303E-15 2.2605E+07 9.5960 2.36
VPENTA 8.4523E-15 6.4858E+05 0.6110 1.06
TOTAL 3.5278E-12 1.6288E+08 178.3400 0.91
8/22/90
Green Hills Compiler (-Z618 Flag Only)
Single Node Performance (40 MHZ, i860)
THE NAS KERNEL BENCHMARK PROGRAM
PROGRAM ERROR FP OPS SECONDS MFLOPS
MXM 3.4313E-15 4.1943E+06 1.5910 2.64
CFFT2D 1.2594E-13 4.9807E+06 2.1590 2.31
CHOLSKY 2.8784E-12 1.1052E+06 1.4760 0.75
BTRIX 2.5033E-13 1.6099E+07 7.7150 2.09
GMTRY 2.5999E-13 1.1325E+08 120.4530 0.94
EMIT 1.3303E-15 2.2605E+07 9.1060 2.48
VPENTA 8.4523E-15 6.4858E+05 0.5080 1.28
TOTAL 3.5278E-12 1.6288E+08 143.0080 1.14
8/22/90
Green Hills Compiler (-O -Z618 Optimizations)
Single Node Performance (40 MHZ, i860)
THE NAS KERNEL BENCHMARK PROGRAM
PROGRAM ERROR FP OPS SECONDS MFLOPS
MXM 3.4313E-15 4.1943E+06 0.6910 6.07
CFFT2D 1.2594E-13 4.9807E+06 1.2470 3.99
CHOLSKY 2.8784E-12 1.1052E+06 0.8460 1.31
BTRIX 2.5033E-13 1.6099E+07 6.0630 2.66
GMTRY 2.5999E-13 1.1325E+08 112.7030 1.00
EMIT 1.3303E-15 2.2605E+07 9.5300 2.37
VPENTA 8.4523E-15 6.4858E+05 0.4270 1.52
TOTAL 3.5278E-12 1.6288E+08 131.5070 1.24
8/22/90
Green Hills Compiler (-OLM -Z618 optimizations)
Single Node Performance (40 MHZ, i860)
--
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