root / testing / timer / HPL_timer.c @ 9
Historique | Voir | Annoter | Télécharger (8,04 ko)
| 1 | 1 | equemene | /*
|
|---|---|---|---|
| 2 | 1 | equemene | * -- High Performance Computing Linpack Benchmark (HPL)
|
| 3 | 1 | equemene | * HPL - 2.0 - September 10, 2008
|
| 4 | 1 | equemene | * Antoine P. Petitet
|
| 5 | 1 | equemene | * University of Tennessee, Knoxville
|
| 6 | 1 | equemene | * Innovative Computing Laboratory
|
| 7 | 1 | equemene | * (C) Copyright 2000-2008 All Rights Reserved
|
| 8 | 1 | equemene | *
|
| 9 | 1 | equemene | * -- Copyright notice and Licensing terms:
|
| 10 | 1 | equemene | *
|
| 11 | 1 | equemene | * Redistribution and use in source and binary forms, with or without
|
| 12 | 1 | equemene | * modification, are permitted provided that the following conditions
|
| 13 | 1 | equemene | * are met:
|
| 14 | 1 | equemene | *
|
| 15 | 1 | equemene | * 1. Redistributions of source code must retain the above copyright
|
| 16 | 1 | equemene | * notice, this list of conditions and the following disclaimer.
|
| 17 | 1 | equemene | *
|
| 18 | 1 | equemene | * 2. Redistributions in binary form must reproduce the above copyright
|
| 19 | 1 | equemene | * notice, this list of conditions, and the following disclaimer in the
|
| 20 | 1 | equemene | * documentation and/or other materials provided with the distribution.
|
| 21 | 1 | equemene | *
|
| 22 | 1 | equemene | * 3. All advertising materials mentioning features or use of this
|
| 23 | 1 | equemene | * software must display the following acknowledgement:
|
| 24 | 1 | equemene | * This product includes software developed at the University of
|
| 25 | 1 | equemene | * Tennessee, Knoxville, Innovative Computing Laboratory.
|
| 26 | 1 | equemene | *
|
| 27 | 1 | equemene | * 4. The name of the University, the name of the Laboratory, or the
|
| 28 | 1 | equemene | * names of its contributors may not be used to endorse or promote
|
| 29 | 1 | equemene | * products derived from this software without specific written
|
| 30 | 1 | equemene | * permission.
|
| 31 | 1 | equemene | *
|
| 32 | 1 | equemene | * -- Disclaimer:
|
| 33 | 1 | equemene | *
|
| 34 | 1 | equemene | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
| 35 | 1 | equemene | * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
| 36 | 1 | equemene | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
| 37 | 1 | equemene | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE UNIVERSITY
|
| 38 | 1 | equemene | * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
| 39 | 1 | equemene | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
| 40 | 1 | equemene | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
| 41 | 1 | equemene | * DATA OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
| 42 | 1 | equemene | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
| 43 | 1 | equemene | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
| 44 | 1 | equemene | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
| 45 | 1 | equemene | * ---------------------------------------------------------------------
|
| 46 | 1 | equemene | */
|
| 47 | 1 | equemene | /*
|
| 48 | 1 | equemene | * Include files
|
| 49 | 1 | equemene | */
|
| 50 | 1 | equemene | #include "hpl.h" |
| 51 | 1 | equemene | /*
|
| 52 | 1 | equemene | * ---------------------------------------------------------------------
|
| 53 | 1 | equemene | * Static variables
|
| 54 | 1 | equemene | * ---------------------------------------------------------------------
|
| 55 | 1 | equemene | */
|
| 56 | 1 | equemene | static int HPL_timer_disabled; |
| 57 | 1 | equemene | static double HPL_timer_cpusec [HPL_NTIMER], |
| 58 | 1 | equemene | HPL_timer_cpustart [HPL_NTIMER], |
| 59 | 1 | equemene | HPL_timer_wallsec [HPL_NTIMER], |
| 60 | 1 | equemene | HPL_timer_wallstart[HPL_NTIMER]; |
| 61 | 1 | equemene | /*
|
| 62 | 1 | equemene | * ---------------------------------------------------------------------
|
| 63 | 1 | equemene | * User callable functions
|
| 64 | 1 | equemene | * ---------------------------------------------------------------------
|
| 65 | 1 | equemene | */
|
| 66 | 1 | equemene | #ifdef STDC_HEADERS
|
| 67 | 1 | equemene | void HPL_timer_boot( void ) |
| 68 | 1 | equemene | #else
|
| 69 | 1 | equemene | void HPL_timer_boot()
|
| 70 | 1 | equemene | #endif
|
| 71 | 1 | equemene | {
|
| 72 | 1 | equemene | /*
|
| 73 | 1 | equemene | * HPL_timer_boot (re)sets all timers to 0, and enables HPL_timer.
|
| 74 | 1 | equemene | */
|
| 75 | 1 | equemene | /*
|
| 76 | 1 | equemene | * .. Local Variables ..
|
| 77 | 1 | equemene | */
|
| 78 | 1 | equemene | int i;
|
| 79 | 1 | equemene | /* ..
|
| 80 | 1 | equemene | * .. Executable Statements ..
|
| 81 | 1 | equemene | */
|
| 82 | 1 | equemene | HPL_timer_disabled = 0;
|
| 83 | 1 | equemene | |
| 84 | 1 | equemene | for( i = 0; i < HPL_NTIMER; i++ ) |
| 85 | 1 | equemene | {
|
| 86 | 1 | equemene | HPL_timer_cpusec [i] = HPL_timer_wallsec [i] = HPL_rzero; |
| 87 | 1 | equemene | HPL_timer_cpustart[i] = HPL_timer_wallstart[i] = HPL_TIMER_STARTFLAG; |
| 88 | 1 | equemene | } |
| 89 | 1 | equemene | /*
|
| 90 | 1 | equemene | * End of HPL_timer_boot
|
| 91 | 1 | equemene | */
|
| 92 | 1 | equemene | } |
| 93 | 1 | equemene | |
| 94 | 1 | equemene | #ifdef STDC_HEADERS
|
| 95 | 1 | equemene | void HPL_timer( const int I ) |
| 96 | 1 | equemene | #else
|
| 97 | 1 | equemene | void HPL_timer( I )
|
| 98 | 1 | equemene | const int I; |
| 99 | 1 | equemene | #endif
|
| 100 | 1 | equemene | {
|
| 101 | 1 | equemene | /*
|
| 102 | 1 | equemene | * Purpose
|
| 103 | 1 | equemene | * =======
|
| 104 | 1 | equemene | *
|
| 105 | 1 | equemene | * HPL_timer provides a "stopwatch" functionality cpu/wall timer in
|
| 106 | 1 | equemene | * seconds. Up to 64 separate timers can be functioning at once. The
|
| 107 | 1 | equemene | * first call starts the timer, and the second stops it. This routine
|
| 108 | 1 | equemene | * can be disenabled by calling HPL_timer_disable(), so that calls to
|
| 109 | 1 | equemene | * the timer are ignored. This feature can be used to make sure certain
|
| 110 | 1 | equemene | * sections of code do not affect timings, even if they call routines
|
| 111 | 1 | equemene | * which have HPL_timer calls in them. HPL_timer_enable() will re-enable
|
| 112 | 1 | equemene | * the timer functionality. One can retrieve the current value of a
|
| 113 | 1 | equemene | * timer by calling
|
| 114 | 1 | equemene | *
|
| 115 | 1 | equemene | * t0 = HPL_timer_inquire( HPL_WALL_TIME | HPL_CPU_TIME, I )
|
| 116 | 1 | equemene | *
|
| 117 | 1 | equemene | * where I is the timer index in [0..64). To initialize the timer
|
| 118 | 1 | equemene | * functionality, one must have called HPL_timer_boot() prior to any of
|
| 119 | 1 | equemene | * the functions mentioned above.
|
| 120 | 1 | equemene | *
|
| 121 | 1 | equemene | * Arguments
|
| 122 | 1 | equemene | * =========
|
| 123 | 1 | equemene | *
|
| 124 | 1 | equemene | * I (global input) const int
|
| 125 | 1 | equemene | * On entry, I specifies the timer to stop/start.
|
| 126 | 1 | equemene | *
|
| 127 | 1 | equemene | * ---------------------------------------------------------------------
|
| 128 | 1 | equemene | */
|
| 129 | 1 | equemene | /* ..
|
| 130 | 1 | equemene | * .. Executable Statements ..
|
| 131 | 1 | equemene | */
|
| 132 | 1 | equemene | if( HPL_timer_disabled ) return; |
| 133 | 1 | equemene | /*
|
| 134 | 1 | equemene | * If timer has not been started, start it. Otherwise, stop it and add
|
| 135 | 1 | equemene | * interval to count
|
| 136 | 1 | equemene | */
|
| 137 | 1 | equemene | if( HPL_timer_wallstart[I] == HPL_TIMER_STARTFLAG )
|
| 138 | 1 | equemene | {
|
| 139 | 1 | equemene | HPL_timer_wallstart[I] = HPL_timer_walltime(); |
| 140 | 1 | equemene | HPL_timer_cpustart [I] = HPL_timer_cputime (); |
| 141 | 1 | equemene | } |
| 142 | 1 | equemene | else
|
| 143 | 1 | equemene | {
|
| 144 | 1 | equemene | HPL_timer_cpusec [I] += HPL_timer_cputime () - HPL_timer_cpustart [I]; |
| 145 | 1 | equemene | HPL_timer_wallsec [I] += HPL_timer_walltime() - HPL_timer_wallstart[I]; |
| 146 | 1 | equemene | HPL_timer_wallstart[I] = HPL_TIMER_STARTFLAG; |
| 147 | 1 | equemene | } |
| 148 | 1 | equemene | /*
|
| 149 | 1 | equemene | * End of HPL_timer
|
| 150 | 1 | equemene | */
|
| 151 | 1 | equemene | } |
| 152 | 1 | equemene | |
| 153 | 1 | equemene | #ifdef STDC_HEADERS
|
| 154 | 1 | equemene | void HPL_timer_enable( void ) |
| 155 | 1 | equemene | #else
|
| 156 | 1 | equemene | void HPL_timer_enable()
|
| 157 | 1 | equemene | #endif
|
| 158 | 1 | equemene | {
|
| 159 | 1 | equemene | /*
|
| 160 | 1 | equemene | * HPL_timer_enable sets it so calls to HPL_timer are not ignored.
|
| 161 | 1 | equemene | */
|
| 162 | 1 | equemene | /* ..
|
| 163 | 1 | equemene | * .. Executable Statements ..
|
| 164 | 1 | equemene | */
|
| 165 | 1 | equemene | HPL_timer_disabled = 0;
|
| 166 | 1 | equemene | return;
|
| 167 | 1 | equemene | /*
|
| 168 | 1 | equemene | * End of HPL_timer_enable
|
| 169 | 1 | equemene | */
|
| 170 | 1 | equemene | } |
| 171 | 1 | equemene | |
| 172 | 1 | equemene | #ifdef STDC_HEADERS
|
| 173 | 1 | equemene | void HPL_timer_disable( void ) |
| 174 | 1 | equemene | #else
|
| 175 | 1 | equemene | void HPL_timer_disable()
|
| 176 | 1 | equemene | #endif
|
| 177 | 1 | equemene | {
|
| 178 | 1 | equemene | /*
|
| 179 | 1 | equemene | * HPL_timer_disable sets it so calls to HPL_timer are ignored.
|
| 180 | 1 | equemene | */
|
| 181 | 1 | equemene | /* ..
|
| 182 | 1 | equemene | * .. Executable Statements ..
|
| 183 | 1 | equemene | */
|
| 184 | 1 | equemene | HPL_timer_disabled = 1;
|
| 185 | 1 | equemene | return;
|
| 186 | 1 | equemene | /*
|
| 187 | 1 | equemene | * End of HPL_timer_disable
|
| 188 | 1 | equemene | */
|
| 189 | 1 | equemene | } |
| 190 | 1 | equemene | |
| 191 | 1 | equemene | #ifdef STDC_HEADERS
|
| 192 | 1 | equemene | double HPL_timer_inquire
|
| 193 | 1 | equemene | ( |
| 194 | 1 | equemene | const HPL_T_TIME TMTYPE,
|
| 195 | 1 | equemene | const int I |
| 196 | 1 | equemene | ) |
| 197 | 1 | equemene | #else
|
| 198 | 1 | equemene | double HPL_timer_inquire( TMTYPE, I )
|
| 199 | 1 | equemene | const int I; |
| 200 | 1 | equemene | const HPL_T_TIME TMTYPE;
|
| 201 | 1 | equemene | #endif
|
| 202 | 1 | equemene | {
|
| 203 | 1 | equemene | /*
|
| 204 | 1 | equemene | * Purpose
|
| 205 | 1 | equemene | * =======
|
| 206 | 1 | equemene | *
|
| 207 | 1 | equemene | * HPL_timer_inquire returns wall- or cpu- time that has accumulated in
|
| 208 | 1 | equemene | * timer I.
|
| 209 | 1 | equemene | *
|
| 210 | 1 | equemene | * Arguments
|
| 211 | 1 | equemene | * =========
|
| 212 | 1 | equemene | *
|
| 213 | 1 | equemene | * TMTYPE (global input) const HPL_T_TIME
|
| 214 | 1 | equemene | * On entry, TMTYPE specifies what time will be returned as fol-
|
| 215 | 1 | equemene | * lows
|
| 216 | 1 | equemene | * = HPL_WALL_TIME : wall clock time is returned,
|
| 217 | 1 | equemene | * = HPL_CPU_TIME : CPU time is returned (default).
|
| 218 | 1 | equemene | *
|
| 219 | 1 | equemene | * I (global input) const int
|
| 220 | 1 | equemene | * On entry, I specifies the timer to return.
|
| 221 | 1 | equemene | *
|
| 222 | 1 | equemene | * ---------------------------------------------------------------------
|
| 223 | 1 | equemene | */
|
| 224 | 1 | equemene | /*
|
| 225 | 1 | equemene | * .. Local Variables ..
|
| 226 | 1 | equemene | */
|
| 227 | 1 | equemene | double time;
|
| 228 | 1 | equemene | /* ..
|
| 229 | 1 | equemene | * .. Executable Statements ..
|
| 230 | 1 | equemene | */
|
| 231 | 1 | equemene | /*
|
| 232 | 1 | equemene | * If wall- or cpu-time are not available on this machine, return
|
| 233 | 1 | equemene | * HPL_TIMER_ERROR
|
| 234 | 1 | equemene | */
|
| 235 | 1 | equemene | if( TMTYPE == HPL_WALL_TIME )
|
| 236 | 1 | equemene | {
|
| 237 | 1 | equemene | if( HPL_timer_walltime() == HPL_TIMER_ERROR )
|
| 238 | 1 | equemene | time = HPL_TIMER_ERROR; |
| 239 | 1 | equemene | else
|
| 240 | 1 | equemene | time = HPL_timer_wallsec[I]; |
| 241 | 1 | equemene | } |
| 242 | 1 | equemene | else
|
| 243 | 1 | equemene | {
|
| 244 | 1 | equemene | if( HPL_timer_cputime() == HPL_TIMER_ERROR )
|
| 245 | 1 | equemene | time = HPL_TIMER_ERROR; |
| 246 | 1 | equemene | else
|
| 247 | 1 | equemene | time = HPL_timer_cpusec [I]; |
| 248 | 1 | equemene | } |
| 249 | 1 | equemene | return( time );
|
| 250 | 1 | equemene | /*
|
| 251 | 1 | equemene | * End of HPL_timer_inquire
|
| 252 | 1 | equemene | */
|
| 253 | 1 | equemene | } |