A function that initializes the GPU

CUDA/init_gpu.cu

+#include "sync_check.h"
+#include <fstream>
+
+void init_gpu(){
+	int device;
+  	cudaGetDevice(&device);
+  
+  	printf ("\n...................In the GPU launcher on the device %d...................\n", device); 
+	int *q;
+	cudaMalloc((void **)&q, sizeof(int));
+	cudaFree(q);
+	sync_check("init_gpu");
+} 
+
+double timeval_diff(struct timeval *a, struct timeval *b){
+	return (double)(a->tv_sec +(double)a->tv_usec/1000000) - (double)(b->tv_sec +(double)b->tv_usec/1000000);
+}