public static void Test2(GThread thread, ArrayView arrayView1, ArrayView arrayView2, float[] result)
{
result[0] = arrayView1.GetElement(5);
arrayView1.SetElement(106, 7f); // set element to 7 to verify that underlying array is same
result[1] = arrayView2.GetElement(6); // check this is 7
}
public static void Example2(GPGPU gpu)
{
ArrayView view1 = new ArrayView();
ArrayView view2 = new ArrayView();
float[] data = Enumerable.Range(0, 1000).Select(t => (float)t).ToArray();
// Two views of the array, simply applying an offset to the array; could slice instead for example.
view1.CreateView(data, 100);
view2.CreateView(data, 200);
for (int i = 0; i < 1000; ++i) data[i] = data[i] * 10f;
// Should copy the 'large' array to the device only once; this is referenced by each ArrayView instance.
var dev_view1 = DeviceClassHelper.CreateDeviceObject(gpu, view1);
var dev_view2 = DeviceClassHelper.CreateDeviceObject(gpu, view2);
var dev_result = gpu.Allocate<float>(5);
var hostResult = new float[5];
gpu.Launch(1, 1).Test2(dev_view1, dev_view2, dev_result);
gpu.CopyFromDevice(dev_result, hostResult);
bool pass = (hostResult[0] == 1050f && hostResult[1] == 7f);
Console.WriteLine(pass ? "Pass" : "Fail");
}