LINPACK benchmark code
The LINPACK floating-point benchmark in Forth
Benchmark results
The URL http://hpwww.epfl.ch/bench/bench.FAQ.html contains interesting benchmark source code pointers. I ported
the "C" LINPACK mark by Al Aburto (aburto@nosc.mil) to Forth. Some of the other benchmarks mentioned there are
on related pages of this site.
| The program (clinpack.c) and latest Double Precision (DP) table of
| results (clinpack.dpr for 'ROLL' option and clinpack.dpu for 'UNROLL'
| option) are available via anonymous ftp from 'ftp.nosc.mil' in
| directory 'pub/aburto'. The ftp,nosc.mil IP address is: 128.49.192.51
| CLINPACK tests a few BLAS and LAPACK routines in the context of solving
| large sets of linear equations.
The Forth LINPACK benchmark shows the quality of your compiler's FPU code as compared to what an optimizing "C" compiler
would give you. Results for a large number of C compilers on a variety of systems are available in the .dpu file.
Intel Pentium P54C 166 MHz, 48 MB, iForth 1.11, NT 4.0
norm. resid resid machep x[0]-1 x[n-1]-1
1 8.39914076E-14 2.22044605E-16 -6.22835117E-14 -4.16333634E-14
times are reported for matrices of order 100
dgefa dgesl total kflops unit ratio
times for array with leading dimension of 201
0.031 0.001 0.032 21458 0.093 0.571
0.031 0.001 0.032 21458 0.093 0.571
0.031 0.001 0.032 21458 0.093 0.571
0.030 8.000E-4 0.031 22008 0.091 0.557
times for array with leading dimension of 200
0.031 0.001 0.032 21458 0.093 0.571
0.031 0.001 0.032 21458 0.093 0.571
0.030 0.001 0.031 22150 0.090 0.554
0.030 9.000E-4 0.031 21938 0.091 0.559
Unrolled, DP Precision, 21938 Kflops; 100 Reps
AMD Athlon 900 MHz, 128 MB, iForth 1.11, Windows 2000
norm. resid resid machep x[0]-1 x[n-1]-1
3 2.58238634E-13 2.22044605E-16 7.77156117E-15 -2.17603713E-14
times are reported for matrices of order 180
dgefa dgesl total kflops unit ratio
times for array with leading dimension of 301
0.013 0.001 0.014 282342 0.007 0.250
0.013 0.000 0.013 304061 0.007 0.232
0.013 0.000 0.013 304061 0.007 0.232
0.013 2.200E-4 0.013 300821 0.007 0.235
times for array with leading dimension of 300
0.013 0.000 0.013 304061 0.007 0.232
0.013 0.000 0.013 304061 0.007 0.232
0.012 0.001 0.013 304061 0.007 0.232
0.013 2.200E-4 0.013 300821 0.007 0.230
Unrolled, DP Precision, 300822 Kflops; 100 Reps
The LINPACK result puts iForth in the following company (clinpack.dpu):
Results as of 01 Apr 1997:
System OS CPU/FPU CPU MFLOPS REF
(MHz) DP,UNROLL
### -------------------- ------------------- --------- ----- --------- ---
--------------------------------------------------------------------------
AMD Athlon Windows 2000 Athlon 900.0 300.822 xx
--------------------------------------------------------------------------
001 SGI Indigo2 Irix 6.2 R10000 195.0 76.606 26
002 SGI Indigo2 Irix 6.2 R10000 195.0 72.421 26
003 SGI O2 Irix 6.3 R10000 175.0 68.729 30
004 SGI Origin 200 Irix 6.4 R10000 180.0 66.562 32
005 SGI O2 Irix 6.3 R10000 175.0 65.716 30
006 Dell XPS Pro 200n NT 3.51 PentiumP6 200.0 47.77 28
007 Brett Station ATX Linux 2.0.0 PentiumP6 180.0 46.396 34
008 Enterprise 4000/10 Solaris 2.5.1 UltrSPARC 250.0 44.880 38
009 HP 9000/J210XC HP-UX 10.20 7200_2CPU 120.0 34.680 36
010 Enterprise 4000/10 Solaris 2.5.1 UltrSPARC 250.0 34.666 38
011 Sun Ultra 4000 Solaris 2.5.1 UltrSPARC 167.0 33.911 27
012 HP 9000/J210 HP-UX 10.01 PA-RISC 120.0 32.855 29
013 Aspen Alpine 275XS OpenVMS 6.2 DEC21064A 275.0 29.598 24
014 HP 9000/712 HP-UX 9.03 PA-7100LC 100.0 26.309 25
015 SPARCstation 20/HS21 Solaris 2.4 HyprSPARC 125.0 24.524 20
--------------------------------------------------------------------------
Pentium P54C NT 4.0 Pentium 166.0 21.619
--------------------------------------------------------------------------
016 SGI Onyx Irix 6.2 R8000 75.0 20.549 33
017 HP 9000/712 HP-UX 10.20 PA7100LC 100.0 20.078 36
018 SGI Indy Irix 6.2 R5000 150.0 18.761 32
019 Mac PowerPC 604 MacOS 7.5.2 PwrPC 604 120.0 18.559 19
020 SGI Challenge S Irix 6.2 R4400 200.0 18.294 31
021 Mac PowerPC 604 MacOS 7.5.2 PwrPC 604 120.0 18.150 19
022 DEC 3000/500 AXP OSF/1 T1.3-3 DEC 21064 150.0 17.994 5
023 Mac PowerPC 604 MacOS 7.5.2 PwrPC 604 120.0 17.095 21
024 Dell XPS Pro 200n NT 3.51 No opt PentiumP6 200.0 16.91 28
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