You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
59 lines
1.2 KiB
C
59 lines
1.2 KiB
C
#include <stdio.h>
|
|
#include <math.h>
|
|
#define THR 32
|
|
#define MEM 128
|
|
#define REG 2
|
|
#define MAXTHR 1536
|
|
#define MAXMEM 49152
|
|
#define MAXREG 32768
|
|
|
|
|
|
int check_use(int x, const int frac);
|
|
|
|
int main() {
|
|
int reg, thr, mem;
|
|
int nbreg, nbmem, nbthr;
|
|
int nthr;
|
|
int min = 0;
|
|
|
|
freopen("cuda.in", "r", stdin);
|
|
#ifndef _DEBUG
|
|
freopen("cuda.out", "w", stdout);
|
|
#endif
|
|
scanf("%d %d %d", &thr, ®, &mem);
|
|
|
|
nthr = check_use(thr, THR);
|
|
nbthr = (int) MAXTHR / nthr;
|
|
nbreg = (int) MAXREG / (nthr*check_use(reg, REG));
|
|
nbmem = (int) MAXMEM / check_use(mem, MEM);
|
|
|
|
|
|
if ((nbthr <= nbreg) && (nbthr <= nbmem))
|
|
min = nbthr;
|
|
else if ((nbreg <= nbthr) && (nbreg <= nbmem))
|
|
min = nbreg;
|
|
else if ((nbmem <= nbthr) && (nbmem <= nbreg))
|
|
min = nbmem;
|
|
#ifdef _DEBUG
|
|
printf("used: %d %d %d\n", check_use(thr, THR), nthr*check_use(reg, REG), check_use(mem, MEM));
|
|
printf("By threads: %d, by registers: %d, by memory: %d\n", nbthr, nbreg, nbmem);
|
|
#endif
|
|
printf("%d", (int)round((thr*min*100)/(double)MAXTHR));
|
|
return 0;
|
|
}
|
|
|
|
int check_use(int x, const int frac) {
|
|
int real_x = frac;
|
|
while (1) {
|
|
real_x += frac;
|
|
if (real_x >= x) {
|
|
x = real_x;
|
|
break;
|
|
}
|
|
}
|
|
#ifdef _DEBUG
|
|
printf("%d %d\n", x, real_x);
|
|
#endif
|
|
return x;
|
|
}
|