first commit

cuda_pointer.h

@@ -0,0 +1,54 @@
+#include <assert.h>
+// #include <cutil.h>
+#include <helper_cuda.h>
+
+
+template <typename T>
+struct cudaPointer{
+	T *dev_pointer;
+	T *host_pointer;
+	int size;
+	cudaPointer(){
+		dev_pointer = NULL;
+		host_pointer = NULL;
+		size = 0;
+	}
+	~cudaPointer(){
+		// free();
+	}
+	void allocate(int _size){
+		size = _size;
+		void *p;
+		checkCudaErrors(cudaMalloc(&p, size * sizeof(T)));
+		assert(p);
+		dev_pointer = (T*)p;
+		checkCudaErrors(cudaMallocHost(&p, size * sizeof(T)));
+		assert(p);
+		host_pointer = (T*)p;
+	}
+	void free(){
+		checkCudaErrors(cudaFree(dev_pointer));
+		checkCudaErrors(cudaFreeHost(host_pointer));
+		dev_pointer = NULL;
+		host_pointer = NULL;
+		size = 0;
+	}
+	void htod(int count){
+		checkCudaErrors(cudaMemcpy(dev_pointer, host_pointer, count * sizeof(T), cudaMemcpyHostToDevice));
+	}
+	void htod(){
+		this->htod(size);
+	}
+	void dtoh(int count){
+		checkCudaErrors(cudaMemcpy(host_pointer, dev_pointer, count * sizeof(T), cudaMemcpyDeviceToHost));
+	}
+	void dtoh(){
+		this->dtoh(size);
+	}
+	T &operator [] (int i){
+		return host_pointer[i];
+	}
+	operator T* (){
+		return dev_pointer;
+	}
+};