//how many cycles does it take with pin

#include <stdio.h>
#include <stdlib.h>

__declspec(target(gfx)) double var = 0.0;

__declspec(target(gfx))
	void compute_array_update(double *src, int size) {
		for(int i = 0; i < size; i++) {
			var += src[i] / 10000;
		}
}

void run_exeperiment_pin(double *vector1, int size) {
	int do_offload = 1;

	for(int i = 0; i < size; i++) {
		vector1[i] = (double) (i % 256) / 512;
	}

#pragma offload target(gfx) if(do_offload) \
	in(size) \
	inout(var) \
	pin(vector1 : length(size))
#pragma parallel_loop
	for(int i = 0; i < 1; i++) {
		compute_array_update(vector1, size);
	}
}

int main(int argc, char ** argv) {
	if(argc != 2) {
		printf("error: insufficient arguments\n");
		exit(-1);
	}

	int size = atoi(argv[1]);

	double *vector1;

	if((vector1 = (double*) malloc(size * sizeof(double))) == NULL) {
		printf("error at allocating vector1\n");
		exit(-1);
	}

	run_exeperiment_pin(vector1, size);
	printf("Variable: %lf\n", var);

	free(vector1);

	return 0;
}