Add initial information

Author: Chillee

.gitignore

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+CMakeFiles
+*.cmake
+bin
+build

LectureQuizzes/1_30.cu

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+#include <stdio.h>
+
+__global__ void cube(float * d_out, float * d_in){
+	// Todo: Fill in this function
+}
+
+int main(int argc, char ** argv) {
+	const int ARRAY_SIZE = 64;
+	const int ARRAY_BYTES = ARRAY_SIZE * sizeof(float);
+
+	// generate the input array on the host
+	float h_in[ARRAY_SIZE];
+	for (int i = 0; i < ARRAY_SIZE; i++) {
+		h_in[i] = float(i);
+	}
+	float h_out[ARRAY_SIZE];
+
+	// declare GPU memory pointers
+	float * d_in;
+	float * d_out;
+
+	// allocate GPU memory
+	cudaMalloc((void**) &d_in, ARRAY_BYTES);
+	cudaMalloc((void**) &d_out, ARRAY_BYTES);
+
+	// transfer the array to the GPU
+	cudaMemcpy(d_in, h_in, ARRAY_BYTES, cudaMemcpyHostToDevice);
+
+	// launch the kernel
+	cube<<<1, ARRAY_SIZE>>>(d_out, d_in);
+
+	// copy back the result array to the CPU
+	cudaMemcpy(h_out, d_out, ARRAY_BYTES, cudaMemcpyDeviceToHost);
+
+	// print out the resulting array
+	for (int i =0; i < ARRAY_SIZE; i++) {
+		printf("%f", h_out[i]);
+		printf(((i % 4) != 3) ? "\t" : "\n");
+	}
+
+	cudaFree(d_in);
+	cudaFree(d_out);
+
+	return 0;
+}