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/**
* Copyright (c) NVIDIA CORPORATION & AFFILIATES, 2001-2018. ALL RIGHTS RESERVED.
*
* See file LICENSE for terms.
*/
#include <ucs/profile/profile_on.h>
#include <stdio.h>
#include <math.h>
/* calc_pi() would be profiled */
UCS_PROFILE_FUNC(double, calc_pi, (count), int count) {
double pi_d_4;
int n;
pi_d_4 = 0.0;
/* Profile a block of code */
UCS_PROFILE_CODE("leibniz", {
for (n = 0; n < count; ++n) {
pi_d_4 += pow(-1.0, n) / (2 * n + 1);
/* create a timestamp for each step */
UCS_PROFILE_SAMPLE("step");
}
});
return pi_d_4 * 4.0;
}
/* print_pi() would be profiled */
UCS_PROFILE_FUNC_VOID(print_pi, (pi), double pi) {
/* Call printf() and profile it */
UCS_PROFILE_CALL(printf, "PI estimation is %.10f\n", pi);
}
int main(int argc, char **argv)
{
double pi = calc_pi(10);
print_pi(pi);
return 0;
}
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