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55 lines
1.2 KiB
C
55 lines
1.2 KiB
C
#include "genlib.h"
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#include "log.h"
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#include "memory.h"
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#include <math.h>
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#include <stdio.h>
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#include <time.h>
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/*cardsin covariance function*/
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double cardsin(double h, int cores) {
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double* used_ram_t0 = malloc(sizeof(double));
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getVirtualMemUsed(used_ram_t0);
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clock_t t = clock();
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log_info("RESULT = in progress, h = %f", h);
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struct cpustat initial[cores];
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struct cpustat final[cores];
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for (int i = 0; i < cores; i++) {
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get_stats(&initial[i], i - 1);
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}
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float delta = 20.371;
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double z;
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if (h != 0) {
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z = (double)(h * delta);
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z = sin(z) / z;
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} else {
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z = 1.;
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}
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t = clock() - t;
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double time_taken = ((double)t)/CLOCKS_PER_SEC; // calculate the elapsed time
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for (int i = 0; i < cores; i++) {
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get_stats(&final[i], i - 1);
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}
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for (int i = 0; i < cores; i++) {
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log_info("CPU %d: %lf%%", i, calculate_load(&initial[i], &final[i]));
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}
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double* used_ram_tf = malloc(sizeof(double));
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getVirtualMemUsed(used_ram_tf);
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log_info("RESULT = success, z = %f, ELAPSED = %f seconds, DIF USED VIRTUAL MEM = %5.1f MB", z, time_taken, *used_ram_tf - *used_ram_t0);
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free(used_ram_t0);
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free(used_ram_tf);
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return z;
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}
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