Viewing file:  whets.c (34.24 KB) -rw-rw-r--
Select action/file-type:
 (+) |  (+) |  (+) | Code (+) | Session (+) |  (+) | SDB (+) |  (+) |  (+) |  (+) |  (+) |  (+) |
/**********************************************************/
/* Date: Mon, 10 Mar 1997 07:38:18 -0500 */
/* From: Roy Longbottom <[email protected]> */
/* Subject: WHET02.txt */
/* To: "Alfred A. Aburto Jr." <[email protected]> */
/**********************************************************/
/*
* C/C++ Whetstone Benchmark Single or Double Precision
*
* Original concept Brian Wichmann NPL 1960's
* Original author Harold Curnow CCTA 1972
* Self timing versions Roy Longbottom CCTA 1978/87
* Optimisation control Bangor University 1987/90
* C/C++ Version Roy Longbottom 1996
* Compatibility & timers Al Aburto 1996
*
************************************************************
*
* Official version approved by:
*
* Harold Curnow [email protected]
*
* Happy 25th birthday Whetstone, 21 November 1997
*
************************************************************
*
* The program normally runs for about 100 seconds
* (adjustable in main - variable duration). This time
* is necessary because of poor PC clock resolution.
* The original concept included such things as a given
* number of subroutine calls and divides which may be
* changed by optimisation. For comparison purposes the
* compiler and level of optimisation should be identified.
*
************************************************************
*
* The original benchmark had a single variable I which
* controlled the running time. Constants with values up
* to 899 were multiplied by I to control the number
* passes for each loop. It was found that large values
* of I could overflow index registers so an extra outer
* loop with a second variable J was added.
*
* Self timing versions were produced during the early
* days. The 1978 changes supplied timings of individual
* loops and these were used later to produce MFLOPS and
* MOPS ratings.
*
* 1987 changes converted the benchmark to Fortran 77
* standards and removed redundant IF statements and
* loops to leave the 8 active loops N1 to N8. Procedure
* P3 was changed to use global variables to avoid over-
* optimisation with the first two statements changed from
* X1=X and Y1=Y to X=Y and Y=Z. A self time calibrating
* version for PCs was also produced, the facility being
* incorporated in this version.
*
* This version has changes to avoid worse than expected
* speed ratings, due to underflow, and facilities to show
* that consistent numeric output is produced with varying
* optimisation levels or versions in different languages.
*
* Some of the procedures produce ever decreasing numbers.
* To avoid problems, variables T and T1 have been changed
* from 0.499975 and 0.50025 to 0.49999975 and 0.50000025.
*
* Each section now has its own double loop. Inner loops
* are run 100 times the loop constants. Calibration
* determines the number of outer loop passes. The
* numeric results produced in the main output are for
* one pass on the outer loop. As underflow problems were
* still likely on a processor 100 times faster than a 100
* MHZ Pentium, three sections have T=1.0-T inserted in the
* outer loop to avoid the problem. The two loops avoid
* index register overflows.
*
* The first section is run ten times longer than required
* for accuracy in calculating MFLOPS. This time is divided
* by ten for inclusion in the MWIPS calculations.
*
* This version has facilities for typing in details of the
* particular run. This information is appended to file
* whets.res along with the results. The input section can
* be avoided using a command line parameter N (for example
* Whets.exe N).
*
* Roy Longbottom [email protected]
*
************************************************************
*
* Whetstone benchmark results are available in whets.tbl
* from ftp.nosc.mil/pub/aburto. The results include
* further details of the benchmarks.
*
************************************************************
*
* Source code is available in C/C++, Fortran, Basic and
* Visual Basic in the same format as this version. Pre-
* compiled versions for PCs are also available via C++.
* These comprise optimised and non-optimised versions
* for DOS, Windows and NT.
*
* This version compiles and runs correctly either as a
* C or CPP program with a WATCOM and Borland compiler.
*
************************************************************
*
* Example of initial calibration display (Pentium 100 MHz)
*
* Single Precision C/C++ Whetstone Benchmark
*
* Calibrate
* 0.17 Seconds 1 Passes (x 100)
* 0.77 Seconds 5 Passes (x 100)
* 3.70 Seconds 25 Passes (x 100)
*
* Use 676 passes (x 100)
*
* 676 passes are used for an approximate duration of 100
* seconds, providing an initial estimate of a speed rating
* of 67.6 MWIPS.
*
* This is followed by the table of results as below. Input
* statements are then supplied to type in the run details.
*
************************************************************
*
* Examples of results from file whets.res
*
* Whetstone Single Precision Benchmark in C/C++
*
* Month run 4/1996
* PC model Escom
* CPU Pentium
* Clock MHz 100
* Cache 256K
* H/W Options Neptune chipset
* OS/DOS Windows 95
* Compiler Watcom C/C++ 10.5 Win386
* Options No optimisation
* Run by Roy Longbottom
* From UK
* Mail [email protected]
*
* Loop content Result MFLOPS MOPS Seconds
*
* N1 floating point -1.12475025653839100 19.971 0.274
* N2 floating point -1.12274754047393800 11.822 3.240
* N3 if then else 1.00000000000000000 11.659 2.530
* N4 fixed point 12.00000000000000000 13.962 6.430
* N5 sin,cos etc. 0.49904659390449520 2.097 11.310
* N6 floating point 0.99999988079071040 3.360 45.750
* N7 assignments 3.00000000000000000 2.415 21.810
* N8 exp,sqrt etc. 0.75110864639282230 1.206 8.790
*
* MWIPS 28.462 100.134
*
* Whetstone Single Precision Benchmark in C/C++
*
* Compiler Watcom C/C++ 10.5 Win386
* Options -otexan -zp4 -om -fp5 -5r
*
* Loop content Result MFLOPS MOPS Seconds
*
* N1 floating point -1.12475025653839100 26.751 0.478
* N2 floating point -1.12274754047393800 17.148 5.220
* N3 if then else 1.00000000000000000 19.922 3.460
* N4 fixed point 12.00000000000000000 15.978 13.130
* N5 sin,cos etc. 0.49904659390449520 2.663 20.810
* N6 floating point 0.99999988079071040 10.077 35.650
* N7 assignments 3.00000000000000000 22.877 5.380
* N8 exp,sqrt etc. 0.75110864639282230 1.513 16.370
*
* MWIPS 66.270 100.498
*
*
* Whetstone Double Precision Benchmark in C/C++
*
* Compiler Watcom C/C++ 10.5 Win32NT
* Options -otexan -zp4 -om -fp5 -5r
*
* Loop content Result MFLOPS MOPS Seconds
*
* N1 floating point -1.12398255667391900 26.548 0.486
* N2 floating point -1.12187079889284400 16.542 5.460
* N3 if then else 1.00000000000000000 19.647 3.540
* N4 fixed point 12.00000000000000000 15.680 13.500
* N5 sin,cos etc. 0.49902937281515140 3.019 18.520
* N6 floating point 0.99999987890802820 9.977 36.330
* N7 assignments 3.00000000000000000 22.620 5.490
* N8 exp,sqrt etc. 0.75100163018457870 1.493 16.740
*
* MWIPS 67.156 100.066
*
* Note different numeric results to single precision. Slight variations
* are normal with different compilers and sometimes optimisation levels.
*
*
* Example Single Precision Optimised Results
*
* MWIPS MFLOPS MFLOPS MFLOPS COS EXP FIXPT IF EQUAL
* PC 1 2 3 MOPS MOPS MOPS MOPS MOPS
*
* P3 5.68 0.928 0.884 0.673 0.461 0.275 2.36 2.16 0.638
* P4 16.4 5.09 4.03 2.66 0.526 0.342 6.36 6.00 5.28
* P5 66.3 26.8 17.1 10.1 2.66 1.51 16.0 19.9 22.9
* P6 161 50.3 45.2 31.5 4.46 2.77 102 20.6 119
*
* Example Single Precision Non-optimised Results
*
* P3 3.07 0.860 0.815 0.328 0.355 0.160 1.70 1.32 0.264
* P4 10.0 4.68 3.51 1.27 0.482 0.298 5.73 5.20 1.18
* P5 28.5 20.0 11.8 3.36 2.10 1.21 14.0 11.7 2.42
* P6 81.7 47.5 37.8 10.9 3.91 2.43 51.2 42.8 7.85
*
* Summary results as in whets.tbl at ftp.nosc.mil/pub/aburto
*
* MFLOPS = Geometric Mean of three MFLOPS loops
* VAX MIPS = 5 * Geometric Mean of last three items above
*
* VAX
* PC System CPU/Options Cache MHz MWIPS MFLOPS MIPS
*
* P3 Clone AM80386DX with 387 128K 40 5.68 0.820 7.40
* P4 Escom 80486DX2 CIS chipset 128K 66 16.4 3.79 29.3
* P5 Escom Pentium Neptune chipset 256K 100 66.3 16.7 96.9
* P6 Dell PentiumPro 440FX PCIset 256K 200 161 41.5 315
*
* P3 Clone AM80386DX with 387 128K 40 3.07 0.613 4.20
* P4 Escom 80486DX2 CIS chipset 128K 66 10.0 2.75 16.4
* P5 Escom Pentium Neptune chipset 256K 100 28.5 9.26 36.6
* P6 Dell PentiumPro 440FX PCIset 256K 200 81.7 26.9 129
*
**************************************************************************
*
* Running In fprintf(stderr,"TIMEBASE|60\n");
structions
*
* 1. In order to compile successfully, include timer option as
* indicated below.
* 2. If pre-compiled codes are to be distributed, compile with the
* -DPRECOMP option or uncomment #define PRECOMP at PRECOMPILE
* below. Also insert compiler name and optimisation details
* at #define precompiler and #define preoptions.
* 3. Compile and run for single precision results. Include run
* time parameter N to bipass typing in hardware details etc.
* 4. Compile with -DDP option or uncomment #define DP at PRECISION
* below and run for double precision results.
* 5. Run with maximum and no optimisation (minimum debug)
* 6. Notify Roy Longbottom of other necessary changes
* 7. Send results file whets.res to Roy Longbottom - with one
* sample of each run and system details fully completed
*
* Roy Longbottom [email protected] 6 November 1996
*
**************************************************************************
*/
#include <math.h> /* for sin, exp etc. */
#include <stdio.h> /* standard I/O */
#include <string.h> /* for strcpy - 3 occurrences */
#include <stdlib.h> /* for exit - 1 occurrence */
/***************************************************************/
/* Timer options. You MUST uncomment one of the options below */
/* or compile, for example, with the '-DUNIX' option. */
/***************************************************************/
/* #define Amiga */
/* #define UNIX */
/* #define UNIX_Old */
/* #define VMS */
/* #define BORLAND_C */
/* #define MSC */
/* #define MAC */
/* #define IPSC */
/* #define FORTRAN_SEC */
/* #define GTODay */
/* #define CTimer */
/* #define UXPM */
/* #define MAC_TMgr */
/* #define PARIX */
/* #define POSIX */
/* #define WIN32 */
/* #define POSIX1 */
/***********************/
/*PRECISION PRECISION PRECISION PRECISION PRECISION PRECISION PRECISION*/
/* #define DP */
#ifdef DP
#define SPDP double
#define Precision "Double"
#else
#define SPDP float
#define Precision "Single"
#endif
/*PRECOMPILE PRECOMPILE PRECOMPILE PRECOMPILE PRECOMPILE PRECOMPILE*/
/* #define PRECOMP */
#ifdef PRECOMP
#define precompiler "INSERT COMPILER NAME HERE"
#define preoptions "INSERT OPTIMISATION OPTIONS HERE"
#endif
void whetstones(long xtra, long x100, int calibrate);
void pa(SPDP e[4], SPDP t, SPDP t2);
void po(SPDP e1[4], long j, long k, long l);
void p3(SPDP *x, SPDP *y, SPDP *z, SPDP t, SPDP t1, SPDP t2);
void pout(char title[22], float ops, int type, SPDP checknum,
SPDP time, int calibrate, int section);
static SPDP loop_time[9];
static SPDP loop_mops[9];
static SPDP loop_mflops[9];
static SPDP TimeUsed;
static SPDP mwips;
static char headings[9][18];
static SPDP Check;
static SPDP results[9];
int main(argc, argv)
int argc;
char *argv[];
{
int count = 10, calibrate = 1;
long xtra = 1;
long x100 = 100;
#ifdef UNIXBENCH
int duration = 10;
#else
int section;
int duration = 100;
FILE *outfile;
int getinput = 1;
char compiler[80] = " ", options[256] = " ", general[10][80] = {" "};
char *endit = " ";
printf("##########################################\n");
printf("%s Precision C/C++ Whetstone Benchmark\n\n", Precision);
#endif
#ifndef UNIXBENCH
if (argc > 1)
{
switch (argv[1][0])
{
case 'N':
case 'n':
getinput = 0;
break;
}
}
if (! getinput)
{
printf ("No run time input data\n\n");
}
outfile = fopen("whets.res","a+");
if (outfile == NULL)
{
printf ("Cannot open results file \n\n");
printf("Press RETURN to exit\n");
gets(endit);
exit (0);
}
#endif
printf("Calibrate\n");
do
{
TimeUsed=0;
whetstones(xtra,x100,calibrate);
printf("%11.2f Seconds %10.0f Passes (x 100)\n", TimeUsed, (SPDP)(xtra));
calibrate++;
count--;
#ifndef UNIXBENCH
if (TimeUsed > 2.0)
#else
if (TimeUsed > 0.5)
#endif
{
count = 0;
}
else
{
xtra = xtra * 5;
}
}
while (count > 0);
if (TimeUsed > 0) xtra = (long)((SPDP)(duration * xtra) / TimeUsed);
if (xtra < 1) xtra = 1;
calibrate = 0;
printf("\nUse %ld passes (x 100)\n", xtra);
printf("\n %s Precision C/C++ Whetstone Benchmark",Precision);
#ifdef PRECOMP
printf("\n Compiler %s", precompiler);
printf("\n Options %s\n", preoptions);
#else
printf("\n");
#endif
printf("\nLoop content Result MFLOPS "
" MOPS Seconds\n\n");
TimeUsed=0;
whetstones(xtra,x100,calibrate);
printf("\nMWIPS ");
if (TimeUsed>0)
{
mwips=(float)(xtra) * (float)(x100) / (10 * TimeUsed);
}
else
{
mwips = 0;
}
printf("%39.3f%19.3f\n\n",mwips,TimeUsed);
if (Check == 0) printf("Wrong answer ");
/************************************************************************/
/* Type details of hardware, software etc. */
/************************************************************************/
#ifndef UNIXBENCH
if (getinput)
{
printf ("Enter the following which will be added with results to file WHETS.RES\n");
printf ("When submitting a number of results you need only provide details once\n");
printf ("but a cross reference such as an abbreviated CPU type would be useful.\n");
printf ("You can kill (exit or close) the program now and no data will be added.\n\n");
printf ("Date: ");
gets(general[0]);
printf ("Computer: ");
gets(general[1]);
printf ("CPU chip: ");
gets(general[2]);
printf ("Clock MHz: ");
gets(general[3]);
printf ("Cache size: ");
gets(general[4]);
printf ("H/W options:");
gets(general[5]);
printf ("OS version: ");
gets(general[6]);
#ifdef PRECOMP
strcpy (compiler, precompiler);
strcpy (options, preoptions);
#else
printf ("Compiler: ");
gets(compiler);
printf ("Options: ");
gets(options);
#endif
printf ("Your name: ");
gets(general[7]);
printf ("From: ");
gets(general[8]);
printf ("Email: ");
gets(general[9]);
}
else
{
#ifdef PRECOMP
strcpy (compiler, precompiler);
strcpy (options, preoptions);
#endif
}
/************************************************************************/
/* Add results to output file whets.res */
/************************************************************************/
fprintf (outfile, "\n");
fprintf (outfile, "##############################################\n");
fprintf (outfile, "Whetstone %s Precision Benchmark in C/C++\n\n",Precision);
fprintf (outfile, "Date %s\n", general[0]);
fprintf (outfile, "Model %s\n", general[1]);
fprintf (outfile, "CPU %s\n", general[2]);
fprintf (outfile, "Clock MHz %s\n", general[3]);
fprintf (outfile, "Cache %s\n", general[4]);
fprintf (outfile, "H/W options %s\n", general[5]);
fprintf (outfile, "OS %s\n", general[6]);
fprintf (outfile, "Compiler %s\n", compiler);
fprintf (outfile, "Options %s\n", options);
fprintf (outfile, "Run by %s\n", general[7]);
fprintf (outfile, "From %s\n", general[8]);
fprintf (outfile, "Email %s\n", general[9]);
fprintf (outfile, "\n");
fprintf (outfile,"Loop content Result"
" MFLOPS MOPS Seconds\n\n");
for (section=1; section<9; section++)
{
fprintf (outfile, "%s %24.17f ", headings[section],
results[section]);
if (loop_mops[section] == 99999)
{
fprintf (outfile," %9.3f %9.3f\n",
loop_mflops[section], loop_time[section]);
}
else
{
fprintf (outfile, " %9.3f %9.3f\n",
loop_mops[section], loop_time[section], results[section]);
}
}
fprintf (outfile, "\nMWIPS ");
fprintf (outfile, "%39.3f%20.3f\n\n",mwips,TimeUsed);
fprintf (outfile, "Results to load to spreadsheet ");
fprintf (outfile, " MWIPS Mflops1 Mflops2 Mflops3 Cosmops"
" Expmops Fixpmops Ifmops Eqmops\n");
fprintf (outfile, "Results to load to spreadsheet ");
fprintf (outfile, " %9.3f %9.3f %9.3f", mwips, loop_mflops[1],
loop_mflops[2]);
fprintf (outfile, " %9.3f %9.3f %9.3f", loop_mflops[6],
loop_mops[5], loop_mops[8]);
fprintf (outfile, " %9.3f %9.3f %9.3f\n\n", loop_mops[4],
loop_mops[3], loop_mops[7]);
fclose (outfile);
printf ("\n");
printf ("A new results file will have been created in the same directory as the\n");
printf (".EXE files if one did not already exist. If you made a mistake on input, \n");
printf ("you can use a text editor to correct it, delete the results or copy \n");
printf ("them to a different file name. If you intend to run multiple tests you\n");
printf ("you may wish to rename WHETS.RES with a more informative title.\n\n");
printf ("Please submit feedback and results files to [email protected] or to\n");
printf ("[email protected]\n\n");
#else /* Unixbench */
fprintf (stderr, "COUNT|%.3f|0|MWIPS\n", mwips);
fprintf (stderr, "TIME|%.3f\n", TimeUsed);
exit(0);
#endif
}
void whetstones(long xtra, long x100, int calibrate)
{
long n1,n2,n3,n4,n5,n6,n7,n8,i,ix,n1mult;
SPDP x,y,z;
long j,k,l;
SPDP e1[4],timea,timeb, dtime();
SPDP t = 0.49999975;
SPDP t0 = t;
SPDP t1 = 0.50000025;
SPDP t2 = 2.0;
Check=0.0;
n1 = 12*x100;
n2 = 14*x100;
n3 = 345*x100;
n4 = 210*x100;
n5 = 32*x100;
n6 = 899*x100;
n7 = 616*x100;
n8 = 93*x100;
n1mult = 10;
/* Section 1, Array elements */
e1[0] = 1.0;
e1[1] = -1.0;
e1[2] = -1.0;
e1[3] = -1.0;
timea = dtime();
{
for (ix=0; ix<xtra; ix++)
{
for(i=0; i<n1*n1mult; i++)
{
e1[0] = (e1[0] + e1[1] + e1[2] - e1[3]) * t;
e1[1] = (e1[0] + e1[1] - e1[2] + e1[3]) * t;
e1[2] = (e1[0] - e1[1] + e1[2] + e1[3]) * t;
e1[3] = (-e1[0] + e1[1] + e1[2] + e1[3]) * t;
}
t = 1.0 - t;
}
t = t0;
}
timeb = (dtime()-timea)/(SPDP)(n1mult);
pout("N1 floating point\0",(float)(n1*16)*(float)(xtra),
1,e1[3],timeb,calibrate,1);
/* Section 2, Array as parameter */
timea = dtime();
{
for (ix=0; ix<xtra; ix++)
{
for(i=0; i<n2; i++)
{
pa(e1,t,t2);
}
t = 1.0 - t;
}
t = t0;
}
timeb = dtime()-timea;
pout("N2 floating point\0",(float)(n2*96)*(float)(xtra),
1,e1[3],timeb,calibrate,2);
/* Section 3, Conditional jumps */
j = 1;
timea = dtime();
{
for (ix=0; ix<xtra; ix++)
{
for(i=0; i<n3; i++)
{
if(j==1) j = 2;
else j = 3;
if(j>2) j = 0;
else j = 1;
if(j<1) j = 1;
else j = 0;
}
}
}
timeb = dtime()-timea;
pout("N3 if then else \0",(float)(n3*3)*(float)(xtra),
2,(SPDP)(j),timeb,calibrate,3);
/* Section 4, Integer arithmetic */
j = 1;
k = 2;
l = 3;
timea = dtime();
{
for (ix=0; ix<xtra; ix++)
{
for(i=0; i<n4; i++)
{
j = j *(k-j)*(l-k);
k = l * k - (l-j) * k;
l = (l-k) * (k+j);
e1[l-2] = j + k + l;
e1[k-2] = j * k * l;
}
}
}
timeb = dtime()-timea;
x = e1[0]+e1[1];
pout("N4 fixed point \0",(float)(n4*15)*(float)(xtra),
2,x,timeb,calibrate,4);
/* Section 5, Trig functions */
x = 0.5;
y = 0.5;
timea = dtime();
{
for (ix=0; ix<xtra; ix++)
{
for(i=1; i<n5; i++)
{
x = t*atan(t2*sin(x)*cos(x)/(cos(x+y)+cos(x-y)-1.0));
y = t*atan(t2*sin(y)*cos(y)/(cos(x+y)+cos(x-y)-1.0));
}
t = 1.0 - t;
}
t = t0;
}
timeb = dtime()-timea;
pout("N5 sin,cos etc. \0",(float)(n5*26)*(float)(xtra),
2,y,timeb,calibrate,5);
/* Section 6, Procedure calls */
x = 1.0;
y = 1.0;
z = 1.0;
timea = dtime();
{
for (ix=0; ix<xtra; ix++)
{
for(i=0; i<n6; i++)
{
p3(&x,&y,&z,t,t1,t2);
}
}
}
timeb = dtime()-timea;
pout("N6 floating point\0",(float)(n6*6)*(float)(xtra),
1,z,timeb,calibrate,6);
/* Section 7, Array refrences */
j = 0;
k = 1;
l = 2;
e1[0] = 1.0;
e1[1] = 2.0;
e1[2] = 3.0;
timea = dtime();
{
for (ix=0; ix<xtra; ix++)
{
for(i=0;i<n7;i++)
{
po(e1,j,k,l);
}
}
}
timeb = dtime()-timea;
pout("N7 assignments \0",(float)(n7*3)*(float)(xtra),
2,e1[2],timeb,calibrate,7);
/* Section 8, Standard functions */
x = 0.75;
timea = dtime();
{
for (ix=0; ix<xtra; ix++)
{
for(i=0; i<n8; i++)
{
x = sqrt(exp(log(x)/t1));
}
}
}
timeb = dtime()-timea;
pout("N8 exp,sqrt etc. \0",(float)(n8*4)*(float)(xtra),
2,x,timeb,calibrate,8);
return;
}
void pa(SPDP e[4], SPDP t, SPDP t2)
{
long j;
for(j=0;j<6;j++)
{
e[0] = (e[0]+e[1]+e[2]-e[3])*t;
e[1] = (e[0]+e[1]-e[2]+e[3])*t;
e[2] = (e[0]-e[1]+e[2]+e[3])*t;
e[3] = (-e[0]+e[1]+e[2]+e[3])/t2;
}
return;
}
void po(SPDP e1[4], long j, long k, long l)
{
e1[j] = e1[k];
e1[k] = e1[l];
e1[l] = e1[j];
return;
}
void p3(SPDP *x, SPDP *y, SPDP *z, SPDP t, SPDP t1, SPDP t2)
{
*x = *y;
*y = *z;
*x = t * (*x + *y);
*y = t1 * (*x + *y);
*z = (*x + *y)/t2;
return;
}
void pout(char title[18], float ops, int type, SPDP checknum,
SPDP time, int calibrate, int section)
{
SPDP mops,mflops;
Check = Check + checknum;
loop_time[section] = time;
strcpy (headings[section],title);
TimeUsed = TimeUsed + time;
if (calibrate == 1)
{
results[section] = checknum;
}
if (calibrate == 0)
{
printf("%s %24.17f ",headings[section],results[section]);
if (type == 1)
{
if (time>0)
{
mflops = ops/(1000000L*time);
}
else
{
mflops = 0;
}
loop_mops[section] = 99999;
loop_mflops[section] = mflops;
printf(" %9.3f %9.3f\n",
loop_mflops[section], loop_time[section]);
}
else
{
if (time>0)
{
mops = ops/(1000000L*time);
}
else
{
mops = 0;
}
loop_mops[section] = mops;
loop_mflops[section] = 0;
printf(" %9.3f%9.3f\n",
loop_mops[section], loop_time[section]);
}
}
return;
}
/*****************************************************/
/* Various timer routines. */
/* Al Aburto, [email protected], 18 Feb 1997 */
/* */
/* t = dtime() outputs the current time in seconds. */
/* Use CAUTION as some of these routines will mess */
/* up when timing across the hour mark!!! */
/* */
/* For timing I use the 'user' time whenever */
/* possible. Using 'user+sys' time is a separate */
/* issue. */
/* */
/* Example Usage: */
/* [timer options added here] */
/* main() */
/* { */
/* double starttime,benchtime,dtime(); */
/* */
/* starttime = dtime(); */
/* [routine to time] */
/* benchtime = dtime() - starttime; */
/* } */
/* */
/* [timer code below added here] */
/*****************************************************/
/*********************************/
/* Timer code. */
/*********************************/
/*******************/
/* Amiga dtime() */
/*******************/
#ifdef Amiga
#include <ctype.h>
#define HZ 50
SPDP dtime()
{
SPDP q;
struct tt
{
long days;
long minutes;
long ticks;
} tt;
DateStamp(&tt);
q = ((SPDP)(tt.ticks + (tt.minutes * 60L * 50L))) / (SPDP)HZ;
return q;
}
#endif
/*****************************************************/
/* UNIX dtime(). This is the preferred UNIX timer. */
/* Provided by: Markku Kolkka, [email protected] */
/* HP-UX Addition by: Bo Thide', [email protected] */
/*****************************************************/
#ifdef UNIX
#include <sys/time.h>
#include <sys/resource.h>
#ifdef hpux
#include <sys/syscall.h>
#define getrusage(a,b) syscall(SYS_getrusage,a,b)
#endif
struct rusage rusage;
SPDP dtime()
{
SPDP q;
getrusage(RUSAGE_SELF,&rusage);
q = (SPDP)(rusage.ru_utime.tv_sec);
q = q + (SPDP)(rusage.ru_utime.tv_usec) * 1.0e-06;
return q;
}
#endif
/***************************************************/
/* UNIX_Old dtime(). This is the old UNIX timer. */
/* Use only if absolutely necessary as HZ may be */
/* ill defined on your system. */
/***************************************************/
#ifdef UNIX_Old
#include <sys/types.h>
#include <sys/times.h>
#include <sys/param.h>
#ifndef HZ
#define HZ 60
#endif
struct tms tms;
SPDP dtime()
{
SPDP q;
times(&tms);
q = (SPDP)(tms.tms_utime) / (SPDP)HZ;
return q;
}
#endif
/*********************************************************/
/* VMS dtime() for VMS systems. */
/* Provided by: [email protected] */
/* Some people have run into problems with this timer. */
/*********************************************************/
#ifdef VMS
#include time
#ifndef HZ
#define HZ 100
#endif
struct tbuffer_t
{
int proc_user_time;
int proc_system_time;
int child_user_time;
int child_system_time;
};
struct tbuffer_t tms;
SPDP dtime()
{
SPDP q;
times(&tms);
q = (SPDP)(tms.proc_user_time) / (SPDP)HZ;
return q;
}
#endif
/******************************/
/* BORLAND C dtime() for DOS */
/******************************/
#ifdef BORLAND_C
#include <ctype.h>
#include <dos.h>
#include <time.h>
#define HZ 100
struct time tnow;
SPDP dtime()
{
SPDP q;
gettime(&tnow);
q = 60.0 * (SPDP)(tnow.ti_min);
q = q + (SPDP)(tnow.ti_sec);
q = q + (SPDP)(tnow.ti_hund)/(SPDP)HZ;
return q;
}
#endif
/***************************************/
/* Microsoft C (MSC) dtime() for DOS */
/* Also suitable for Watcom C/C++ and */
/* some other PC compilers */
/***************************************/
#ifdef MSC
#include <time.h>
#include <ctype.h>
#define HZ CLOCKS_PER_SEC
clock_t tnow;
SPDP dtime()
{
SPDP q;
tnow = clock();
q = (SPDP)tnow / (SPDP)HZ;
return q;
}
#endif
/*************************************/
/* Macintosh (MAC) Think C dtime() */
/*************************************/
#ifdef MAC
#include <time.h>
#define HZ 60
SPDP dtime()
{
SPDP q;
q = (SPDP)clock() / (SPDP)HZ;
return q;
}
#endif
/************************************************************/
/* iPSC/860 (IPSC) dtime() for i860. */
/* Provided by: Dan Yergeau, [email protected] */
/************************************************************/
#ifdef IPSC
extern double dclock();
SPDP dtime()
{
SPDP q;
q = dclock();
return q;
}
#endif
/**************************************************/
/* FORTRAN dtime() for Cray type systems. */
/* This is the preferred timer for Cray systems. */
/**************************************************/
#ifdef FORTRAN_SEC
fortran double second();
SPDP dtime()
{
SPDP q;
second(&q);
return q;
}
#endif
/***********************************************************/
/* UNICOS C dtime() for Cray UNICOS systems. Don't use */
/* unless absolutely necessary as returned time includes */
/* 'user+system' time. Provided by: R. Mike Dority, */
/* [email protected] */
/***********************************************************/
#ifdef CTimer
#include <time.h>
SPDP dtime()
{
SPDP q;
clock_t clock(void);
q = (SPDP)clock() / (SPDP)CLOCKS_PER_SEC;
return q;
}
#endif
/********************************************/
/* Another UNIX timer using gettimeofday(). */
/* However, getrusage() is preferred. */
/********************************************/
#ifdef GTODay
#include <sys/time.h>
struct timeval tnow;
SPDP dtime()
{
SPDP q;
gettimeofday(&tnow,NULL);
q = (SPDP)tnow.tv_sec + (SPDP)tnow.tv_usec * 1.0e-6;
return q;
}
#endif
/*****************************************************/
/* Fujitsu UXP/M timer. */
/* Provided by: Mathew Lim, ANUSF, [email protected] */
/*****************************************************/
#ifdef UXPM
#include <sys/types.h>
#include <sys/timesu.h>
struct tmsu rusage;
SPDP dtime()
{
SPDP q;
timesu(&rusage);
q = (SPDP)(rusage.tms_utime) * 1.0e-06;
return q;
}
#endif
/**********************************************/
/* Macintosh (MAC_TMgr) Think C dtime() */
/* requires Think C Language Extensions or */
/* #include <MacHeaders> in the prefix */
/* provided by Francis H Schiffer 3rd (fhs) */
/* [email protected] */
/**********************************************/
#ifdef MAC_TMgr
#include <Timer.h>
#include <stdlib.h>
static TMTask mgrTimer;
static Boolean mgrInited = false;
static SPDP mgrClock;
#define RMV_TIMER RmvTime( (QElemPtr)&mgrTimer )
#define MAX_TIME 1800000000L
/* MAX_TIME limits time between calls to */
/* dtime( ) to no more than 30 minutes */
/* this limitation could be removed by */
/* creating a completion routine to sum */
/* 30 minute segments (fhs 1994 feb 9) */
static void Remove_timer( )
{
RMV_TIMER;
mgrInited = false;
}
SPDP dtime( )
{
if( mgrInited ) {
RMV_TIMER;
mgrClock += (MAX_TIME + mgrTimer.tmCount)*1.0e-6;
} else {
if( _atexit( &Remove_timer ) == 0 ) mgrInited = true;
mgrClock = 0.0;
}
if( mgrInited ) {
mgrTimer.tmAddr = NULL;
mgrTimer.tmCount = 0;
mgrTimer.tmWakeUp = 0;
mgrTimer.tmReserved = 0;
InsTime( (QElemPtr)&mgrTimer );
PrimeTime( (QElemPtr)&mgrTimer, -MAX_TIME );
}
return( mgrClock );
}
#endif
/***********************************************************/
/* Parsytec GCel timer. */
/* Provided by: Georg Wambach, [email protected] */
/***********************************************************/
#ifdef PARIX
#include <sys/time.h>
SPDP dtime()
{
SPDP q;
q = (SPDP) (TimeNowHigh()) / (SPDP) CLK_TCK_HIGH;
return q;
}
#endif
/************************************************/
/* Sun Solaris POSIX dtime() routine */
/* Provided by: Case Larsen, CTLarsen.lbl.gov */
/************************************************/
#ifdef POSIX
#include <sys/time.h>
#include <sys/resource.h>
#include <sys/rusage.h>
#ifdef __hpux
#include <sys/syscall.h>
#endif
struct rusage rusage;
SPDP dtime()
{
SPDP q;
getrusage(RUSAGE_SELF,&rusage);
q = (SPDP)(rusage.ru_utime.tv_sec);
q = q + (SPDP)(rusage.ru_utime.tv_nsec) * 1.0e-09;
return q;
}
#endif
/****************************************************/
/* Windows NT (32 bit) dtime() routine */
/* Provided by: Piers Haken, [email protected] */
/****************************************************/
#ifdef WIN32
#include <windows.h>
SPDP dtime(void)
{
SPDP q;
q = (SPDP)GetTickCount() * 1.0e-03;
return q;
}
#endif
/*****************************************************/
/* Time according to POSIX.1 - <[email protected]> */
/* Ref: "POSIX Programmer's Guide" O'Reilly & Assoc.*/
/*****************************************************/
#ifdef POSIX1
#define _POSIX_SOURCE 1
#include <unistd.h>
#include <limits.h>
#include <sys/times.h>
struct tms tms;
SPDP dtime()
{
SPDP q;
times(&tms);
q = (SPDP)tms.tms_utime / (SPDP)CLK_TCK;
return q;
}
#endif
|