public void cudaMalloc_cudaFree_cudaMemcpy_test_cudaMemset_test()
{
int length = 1024 * 2;
byte testValue = 5;
byte[] test = new byte[length];
byte[] result = new byte[length];
IntPtr d_ptr = IntPtr.Zero;
var size = length * sizeof(byte);
var status = CudaRuntimeApi.cudaMalloc(ref d_ptr, (ulong)size);
Assert.AreEqual(status, cudaError.cudaSuccess);
Console.WriteLine($"ptr : {d_ptr}");
GCHandle gchTest = GCHandle.Alloc(test, GCHandleType.Pinned);
GCHandle gchResult = GCHandle.Alloc(result, GCHandleType.Pinned);
IntPtr h_ptrTest = Marshal.UnsafeAddrOfPinnedArrayElement(test, 0);
IntPtr h_ptrResult = Marshal.UnsafeAddrOfPinnedArrayElement(result, 0);
status = CudaRuntimeApi.cudaMemcpy(d_ptr, h_ptrTest, (ulong)size, cudaMemcpyKind.HostToDevice);
Assert.AreEqual(status, cudaError.cudaSuccess);
status = CudaRuntimeApi.cudaMemset(d_ptr, testValue, (ulong)size);
Assert.AreEqual(status, cudaError.cudaSuccess);
status = CudaRuntimeApi.cudaMemcpy(h_ptrResult, d_ptr, (ulong)size, cudaMemcpyKind.DeviceToHost);
Assert.AreEqual(status, cudaError.cudaSuccess);
for (int i = 0; i < length; i++)
{
Assert.AreEqual(result[i], testValue);
}
status = CudaRuntimeApi.cudaFree(d_ptr);
Assert.AreEqual(status, cudaError.cudaSuccess);
gchTest.Free();
gchResult.Free();
}