Jovan Ivković / Mbed 2 deprecated Benchmark_Math_OP

Benchmark of DP, SP and Int. Arithmetic operations for ARM Cortex M7 MCU, Nucleo-144 Stm32F746 and Stm32F767 (modified from ddown post at "Arduino for STM32") by Jovan Ivković (JovanEps)

Dependencies:   mbed

main.cpp@2:03cf226a5ba3, 2017-01-04 (annotated)

Committer:
JovanEps
Date:
Wed Jan 04 00:04:46 2017 +0000
Revision:
2:03cf226a5ba3
Parent:
1:be78b18b8347
Child:
3:12d9e9070739
RC1

Who changed what in which revision?

UserRevisionLine numberNew contents of line
JovanEps 0:43b96e9650ef 1 //********************************************************
JovanEps 0:43b96e9650ef 2 //** Nucleo-144 Stm32F746 and Stm32F767 benchmark ******
JovanEps 0:43b96e9650ef 3 //** Jovan Ivkovic - 2016 ******
JovanEps 0:43b96e9650ef 4 //********************************************************
JovanEps 0:43b96e9650ef 5 #include "mbed.h"
JovanEps 0:43b96e9650ef 6 DigitalOut myled(LED1);
JovanEps 0:43b96e9650ef 7 Serial pc(USBTX, USBRX);
JovanEps 0:43b96e9650ef 8 Timer timer;
JovanEps 0:43b96e9650ef 9
JovanEps 0:43b96e9650ef 10 #include <stdlib.h>
JovanEps 0:43b96e9650ef 11 #include <stdio.h>
JovanEps 0:43b96e9650ef 12 #include <string.h>
JovanEps 0:43b96e9650ef 13 #include <math.h>
JovanEps 0:43b96e9650ef 14 /* the following is optional depending on the timing function used */
JovanEps 0:43b96e9650ef 15 #include <time.h>
JovanEps 0:43b96e9650ef 16
JovanEps 0:43b96e9650ef 17
JovanEps 2:03cf226a5ba3 18 #define REDO_COMPUTATIONS 10
JovanEps 2:03cf226a5ba3 19 struct results {
JovanEps 2:03cf226a5ba3 20 uint32_t doubletime;
JovanEps 2:03cf226a5ba3 21 uint32_t floattime;
JovanEps 2:03cf226a5ba3 22 uint32_t inttime;
JovanEps 2:03cf226a5ba3 23 };
JovanEps 0:43b96e9650ef 24
JovanEps 2:03cf226a5ba3 25 #define MAX_LOOPS 512
JovanEps 2:03cf226a5ba3 26 double MyDoubles[MAX_LOOPS];
JovanEps 2:03cf226a5ba3 27 double a_d = 12345.67, b_d = 54321.11;
JovanEps 2:03cf226a5ba3 28 float MyFloats[MAX_LOOPS];
JovanEps 2:03cf226a5ba3 29 float a_f = 67890.12, b_f = 8756451.17;
JovanEps 2:03cf226a5ba3 30 int Myints[MAX_LOOPS];
JovanEps 2:03cf226a5ba3 31 int a_i = 581674411, b_i = 18714;
JovanEps 0:43b96e9650ef 32
JovanEps 2:03cf226a5ba3 33 //****************************************
JovanEps 2:03cf226a5ba3 34 uint32_t micros ()
JovanEps 2:03cf226a5ba3 35 {
JovanEps 2:03cf226a5ba3 36 //****************************************
JovanEps 2:03cf226a5ba3 37 // uint32_t usec = timer.read_us();
JovanEps 2:03cf226a5ba3 38 //return usec;
JovanEps 2:03cf226a5ba3 39 return timer.read_us();
JovanEps 2:03cf226a5ba3 40 }
JovanEps 0:43b96e9650ef 41
JovanEps 2:03cf226a5ba3 42 //****************************************
JovanEps 2:03cf226a5ba3 43 void math_add (struct results *r) {
JovanEps 2:03cf226a5ba3 44 //****************************************
JovanEps 2:03cf226a5ba3 45 uint32_t t, c, l;
JovanEps 2:03cf226a5ba3 46
JovanEps 2:03cf226a5ba3 47 t = micros ();
JovanEps 2:03cf226a5ba3 48 for ( c = 0 ; c < REDO_COMPUTATIONS ; c ++ )
JovanEps 2:03cf226a5ba3 49 {
JovanEps 2:03cf226a5ba3 50 for ( l = 0 ; l < MAX_LOOPS ; l ++ )
JovanEps 2:03cf226a5ba3 51 {
JovanEps 2:03cf226a5ba3 52 MyDoubles [ l ] = double ( a_d + b_d * double ( l ) );
JovanEps 1:be78b18b8347 53 }
JovanEps 2:03cf226a5ba3 54 }
JovanEps 2:03cf226a5ba3 55 r->doubletime = micros () - t;
JovanEps 0:43b96e9650ef 56
JovanEps 2:03cf226a5ba3 57 t = micros ();
JovanEps 2:03cf226a5ba3 58 for ( c = 0 ; c < REDO_COMPUTATIONS ; c ++ )
JovanEps 2:03cf226a5ba3 59 {
JovanEps 2:03cf226a5ba3 60 for ( l = 0 ; l < MAX_LOOPS ; l ++ )
JovanEps 2:03cf226a5ba3 61 {
JovanEps 2:03cf226a5ba3 62 MyFloats [ l ] = float ( a_f + b_f * float ( l ) );
JovanEps 0:43b96e9650ef 63 }
JovanEps 2:03cf226a5ba3 64 }
JovanEps 2:03cf226a5ba3 65 r->floattime = micros () - t;
JovanEps 0:43b96e9650ef 66
JovanEps 2:03cf226a5ba3 67 t = micros ();
JovanEps 2:03cf226a5ba3 68 for ( c = 0 ; c < REDO_COMPUTATIONS ; c ++ )
JovanEps 2:03cf226a5ba3 69 {
JovanEps 2:03cf226a5ba3 70 for ( l = 0 ; l < MAX_LOOPS ; l ++ )
JovanEps 2:03cf226a5ba3 71 {
JovanEps 2:03cf226a5ba3 72 Myints [ l ] = a_i + b_i * l;
JovanEps 1:be78b18b8347 73 }
JovanEps 2:03cf226a5ba3 74 }
JovanEps 2:03cf226a5ba3 75 r->inttime = micros () - t;
JovanEps 2:03cf226a5ba3 76 }
JovanEps 0:43b96e9650ef 77
JovanEps 2:03cf226a5ba3 78 //****************************************
JovanEps 2:03cf226a5ba3 79 void math_sub (struct results *r) {
JovanEps 2:03cf226a5ba3 80 //****************************************
JovanEps 2:03cf226a5ba3 81 uint32_t t, c, l;
JovanEps 2:03cf226a5ba3 82
JovanEps 2:03cf226a5ba3 83 t = micros ();
JovanEps 2:03cf226a5ba3 84 for ( c = 0 ; c < REDO_COMPUTATIONS ; c ++ )
JovanEps 2:03cf226a5ba3 85 {
JovanEps 2:03cf226a5ba3 86 for ( l = 0 ; l < MAX_LOOPS ; l ++ )
JovanEps 2:03cf226a5ba3 87 {
JovanEps 2:03cf226a5ba3 88 MyDoubles [ l ] = double ( a_d - b_d * double ( l ) );
JovanEps 0:43b96e9650ef 89 }
JovanEps 2:03cf226a5ba3 90 }
JovanEps 2:03cf226a5ba3 91 r->doubletime = micros () - t;
JovanEps 0:43b96e9650ef 92
JovanEps 2:03cf226a5ba3 93 t = micros ();
JovanEps 2:03cf226a5ba3 94 for ( c = 0 ; c < REDO_COMPUTATIONS ; c ++ )
JovanEps 2:03cf226a5ba3 95 {
JovanEps 2:03cf226a5ba3 96 for ( l = 0 ; l < MAX_LOOPS ; l ++ )
JovanEps 2:03cf226a5ba3 97 {
JovanEps 2:03cf226a5ba3 98 MyFloats [ l ] = float ( a_f - b_f * float ( l ) );
JovanEps 2:03cf226a5ba3 99 }
JovanEps 2:03cf226a5ba3 100 }
JovanEps 2:03cf226a5ba3 101 r->floattime = micros () - t;
JovanEps 0:43b96e9650ef 102
JovanEps 2:03cf226a5ba3 103 t = micros ();
JovanEps 2:03cf226a5ba3 104 for ( c = 0 ; c < REDO_COMPUTATIONS ; c ++ )
JovanEps 2:03cf226a5ba3 105 {
JovanEps 2:03cf226a5ba3 106 for ( l = 0 ; l < MAX_LOOPS ; l ++ )
JovanEps 2:03cf226a5ba3 107 {
JovanEps 2:03cf226a5ba3 108 Myints [ l ] = a_i - b_i * l;
JovanEps 2:03cf226a5ba3 109 }
JovanEps 2:03cf226a5ba3 110 }
JovanEps 2:03cf226a5ba3 111 r->inttime = micros () - t;
JovanEps 0:43b96e9650ef 112 }
JovanEps 0:43b96e9650ef 113
JovanEps 2:03cf226a5ba3 114 //****************************************
JovanEps 2:03cf226a5ba3 115 void math_mul (struct results *r) {
JovanEps 2:03cf226a5ba3 116 //****************************************
JovanEps 2:03cf226a5ba3 117 uint32_t t, c, l;
JovanEps 2:03cf226a5ba3 118
JovanEps 2:03cf226a5ba3 119 t = micros ();
JovanEps 2:03cf226a5ba3 120 for ( c = 0 ; c < REDO_COMPUTATIONS ; c ++ )
JovanEps 2:03cf226a5ba3 121 {
JovanEps 2:03cf226a5ba3 122 for ( l = 0 ; l < MAX_LOOPS ; l ++ )
JovanEps 2:03cf226a5ba3 123 {
JovanEps 2:03cf226a5ba3 124 MyDoubles [ l ] = double ( a_d * b_d * double ( l ) );
JovanEps 2:03cf226a5ba3 125 }
JovanEps 2:03cf226a5ba3 126 }
JovanEps 2:03cf226a5ba3 127 r->doubletime = micros () - t;
JovanEps 0:43b96e9650ef 128
JovanEps 2:03cf226a5ba3 129 t = micros ();
JovanEps 2:03cf226a5ba3 130 for ( c = 0 ; c < REDO_COMPUTATIONS ; c ++ )
JovanEps 2:03cf226a5ba3 131 {
JovanEps 2:03cf226a5ba3 132 for ( l = 0 ; l < MAX_LOOPS ; l ++ )
JovanEps 2:03cf226a5ba3 133 {
JovanEps 2:03cf226a5ba3 134 MyFloats [ l ] = float ( a_f * b_f * float ( l ) );
JovanEps 2:03cf226a5ba3 135 }
JovanEps 2:03cf226a5ba3 136 }
JovanEps 2:03cf226a5ba3 137 r->floattime = micros () - t;
JovanEps 0:43b96e9650ef 138
JovanEps 2:03cf226a5ba3 139 t = micros ();
JovanEps 2:03cf226a5ba3 140 for ( c = 0 ; c < REDO_COMPUTATIONS ; c ++ )
JovanEps 2:03cf226a5ba3 141 {
JovanEps 2:03cf226a5ba3 142 for ( l = 0 ; l < MAX_LOOPS ; l ++ )
JovanEps 2:03cf226a5ba3 143 {
JovanEps 2:03cf226a5ba3 144 Myints [ l ] = a_i * b_i * l;
JovanEps 2:03cf226a5ba3 145 }
JovanEps 2:03cf226a5ba3 146 }
JovanEps 2:03cf226a5ba3 147 r->inttime = micros () - t;
JovanEps 0:43b96e9650ef 148 }
JovanEps 0:43b96e9650ef 149
JovanEps 2:03cf226a5ba3 150 //****************************************
JovanEps 2:03cf226a5ba3 151 void math_div (struct results *r) {
JovanEps 2:03cf226a5ba3 152 //****************************************
JovanEps 2:03cf226a5ba3 153 uint32_t t, c, l;
JovanEps 2:03cf226a5ba3 154
JovanEps 2:03cf226a5ba3 155 t = micros ();
JovanEps 2:03cf226a5ba3 156 for ( c = 0 ; c < REDO_COMPUTATIONS ; c ++ )
JovanEps 2:03cf226a5ba3 157 {
JovanEps 2:03cf226a5ba3 158 for ( l = 0 ; l < MAX_LOOPS ; l ++ )
JovanEps 2:03cf226a5ba3 159 {
JovanEps 2:03cf226a5ba3 160 MyDoubles [ l ] = double ( a_d / b_d * double ( l ) );
JovanEps 2:03cf226a5ba3 161 }
JovanEps 2:03cf226a5ba3 162 }
JovanEps 2:03cf226a5ba3 163 r->doubletime = micros () - t;
JovanEps 2:03cf226a5ba3 164
JovanEps 2:03cf226a5ba3 165 t = micros ();
JovanEps 2:03cf226a5ba3 166 for ( c = 0 ; c < REDO_COMPUTATIONS ; c ++ )
JovanEps 2:03cf226a5ba3 167 {
JovanEps 2:03cf226a5ba3 168 for ( l = 0 ; l < MAX_LOOPS ; l ++ )
JovanEps 2:03cf226a5ba3 169 {
JovanEps 2:03cf226a5ba3 170 MyFloats [ l ] = float ( a_f / b_f * float ( l ) );
JovanEps 2:03cf226a5ba3 171 }
JovanEps 2:03cf226a5ba3 172 }
JovanEps 2:03cf226a5ba3 173 r->floattime = micros () - t;
JovanEps 2:03cf226a5ba3 174
JovanEps 2:03cf226a5ba3 175 t = micros ();
JovanEps 2:03cf226a5ba3 176 for ( c = 0 ; c < REDO_COMPUTATIONS ; c ++ )
JovanEps 2:03cf226a5ba3 177 {
JovanEps 2:03cf226a5ba3 178 for ( l = 0 ; l < MAX_LOOPS ; l ++ )
JovanEps 2:03cf226a5ba3 179 {
JovanEps 2:03cf226a5ba3 180 Myints [ l ] = a_i / b_i * l;
JovanEps 2:03cf226a5ba3 181 }
JovanEps 2:03cf226a5ba3 182 }
JovanEps 2:03cf226a5ba3 183 r->inttime = micros () - t;
JovanEps 0:43b96e9650ef 184 }
JovanEps 0:43b96e9650ef 185
JovanEps 2:03cf226a5ba3 186 //****************************************
JovanEps 2:03cf226a5ba3 187 void bench_loop() {
JovanEps 2:03cf226a5ba3 188 //****************************************
JovanEps 2:03cf226a5ba3 189
JovanEps 2:03cf226a5ba3 190 struct results add_ops, sub_ops, mul_ops, div_ops;
JovanEps 2:03cf226a5ba3 191
JovanEps 2:03cf226a5ba3 192 math_add(&add_ops);
JovanEps 2:03cf226a5ba3 193 math_sub(&sub_ops);
JovanEps 2:03cf226a5ba3 194 math_mul(&mul_ops);
JovanEps 2:03cf226a5ba3 195 math_div(&div_ops);
JovanEps 0:43b96e9650ef 196
JovanEps 2:03cf226a5ba3 197 pc.printf("\n\n");
JovanEps 2:03cf226a5ba3 198 pc.printf("\n FUNCTION DOUBLE SINGLE INT");
JovanEps 2:03cf226a5ba3 199
JovanEps 2:03cf226a5ba3 200 pc.printf("\n Time - ADD (us/512) :\t ");
JovanEps 2:03cf226a5ba3 201 pc.printf( "%0.1f", ( float ) add_ops.doubletime / REDO_COMPUTATIONS );
JovanEps 2:03cf226a5ba3 202 pc.printf("\t\t");
JovanEps 2:03cf226a5ba3 203 pc.printf( "%0.1f", ( float ) add_ops.floattime / REDO_COMPUTATIONS );
JovanEps 2:03cf226a5ba3 204 pc.printf("\t\t");
JovanEps 2:03cf226a5ba3 205 pc.printf("%0.1f", ( float ) add_ops.inttime / REDO_COMPUTATIONS );
JovanEps 2:03cf226a5ba3 206 pc.printf("\n");
JovanEps 2:03cf226a5ba3 207
JovanEps 2:03cf226a5ba3 208 pc.printf("\n Time - SUB (us/512) :\t ");
JovanEps 2:03cf226a5ba3 209 pc.printf( "%0.1f", ( float ) sub_ops.doubletime / REDO_COMPUTATIONS );
JovanEps 2:03cf226a5ba3 210 pc.printf("\t\t");
JovanEps 2:03cf226a5ba3 211 pc.printf( "%0.1f", ( float ) sub_ops.floattime / REDO_COMPUTATIONS );
JovanEps 2:03cf226a5ba3 212 pc.printf("\t\t");
JovanEps 2:03cf226a5ba3 213 pc.printf( "%0.1f", ( float ) sub_ops.inttime / REDO_COMPUTATIONS );
JovanEps 2:03cf226a5ba3 214 pc.printf("\n");
JovanEps 0:43b96e9650ef 215
JovanEps 2:03cf226a5ba3 216 pc.printf("\n Time - MUL (us/512) :\t ");
JovanEps 2:03cf226a5ba3 217 pc.printf( "%0.1f", ( float ) mul_ops.doubletime / REDO_COMPUTATIONS );
JovanEps 2:03cf226a5ba3 218 pc.printf("\t\t");
JovanEps 2:03cf226a5ba3 219 pc.printf( "%0.1f", ( float ) mul_ops.floattime / REDO_COMPUTATIONS );
JovanEps 2:03cf226a5ba3 220 pc.printf("\t\t");
JovanEps 2:03cf226a5ba3 221 pc.printf( "%0.1f", ( float ) mul_ops.inttime / REDO_COMPUTATIONS );
JovanEps 2:03cf226a5ba3 222 pc.printf("\n");
JovanEps 2:03cf226a5ba3 223
JovanEps 2:03cf226a5ba3 224 pc.printf("\n Time - DIV (us/512) :\t ");
JovanEps 2:03cf226a5ba3 225 pc.printf( "%0.1f", ( float ) div_ops.doubletime / REDO_COMPUTATIONS );
JovanEps 2:03cf226a5ba3 226 pc.printf("\t\t");
JovanEps 2:03cf226a5ba3 227 pc.printf( "%0.1f", ( float ) div_ops.floattime / REDO_COMPUTATIONS );
JovanEps 2:03cf226a5ba3 228 pc.printf("\t\t");
JovanEps 2:03cf226a5ba3 229 pc.printf( "%0.1f", ( float ) div_ops.inttime / REDO_COMPUTATIONS );
JovanEps 2:03cf226a5ba3 230 pc.printf("\n");
JovanEps 2:03cf226a5ba3 231
JovanEps 2:03cf226a5ba3 232 wait(1);
JovanEps 0:43b96e9650ef 233 }
JovanEps 0:43b96e9650ef 234
JovanEps 1:be78b18b8347 235 //*********************************
JovanEps 1:be78b18b8347 236 //** MAIN block **
JovanEps 1:be78b18b8347 237 //*********************************
JovanEps 1:be78b18b8347 238 int main()
JovanEps 1:be78b18b8347 239 {
JovanEps 2:03cf226a5ba3 240 pc.baud(57600);
JovanEps 0:43b96e9650ef 241
JovanEps 2:03cf226a5ba3 242 pc.printf("\n My Benchamrk ...");
JovanEps 2:03cf226a5ba3 243 pc.printf("Beginningbenchmark at ");
JovanEps 2:03cf226a5ba3 244 pc.printf("default 216 MHz ...\n");
JovanEps 2:03cf226a5ba3 245 pc.printf("\n\n");
JovanEps 2:03cf226a5ba3 246
JovanEps 1:be78b18b8347 247 while(1)
JovanEps 1:be78b18b8347 248 {
JovanEps 2:03cf226a5ba3 249 myled=1;
JovanEps 2:03cf226a5ba3 250 timer.start();
JovanEps 2:03cf226a5ba3 251
JovanEps 2:03cf226a5ba3 252 bench_loop(); //Call of banch method
JovanEps 2:03cf226a5ba3 253
JovanEps 2:03cf226a5ba3 254 pc.printf(" kraj \n");
JovanEps 2:03cf226a5ba3 255 myled=0;
JovanEps 2:03cf226a5ba3 256 timer.stop();
JovanEps 2:03cf226a5ba3 257
JovanEps 1:be78b18b8347 258 }
JovanEps 0:43b96e9650ef 259 }