public void Test_SingleThreadGPUtoGPU()
{
if (!_gpu0.CanAccessPeer(_gpu1))
{
Console.WriteLine("Device not supporting this, so skip.");
return;
}
Random r = new Random();
for (int i = 0; i < _uintBufferIn0.Length; i++)
{
_uintBufferIn0[i] = (uint)r.Next(Int32.MaxValue);
}
_gpu0.SetCurrentContext();
_gpuuintBufferIn0 = _gpu0.CopyToDevice(_uintBufferIn0);
_gpu1.SetCurrentContext();
_gpuuintBufferIn1 = _gpu1.CopyToDevice(_uintBufferIn1);
_gpu0.SetCurrentContext();
long loops = 500;
Stopwatch sw = Stopwatch.StartNew();
for (int i = 0; i < loops; i++)
{
_gpu0.CopyDeviceToDevice(_gpuuintBufferIn0, 0, _gpu1, _gpuuintBufferIn1, 0, _uintBufferIn0.Length);
}
sw.Stop();
float mbps = (float)((long)_uintBufferIn0.Length * sizeof(int) * loops) / (float)(sw.ElapsedMilliseconds * 1000);
Console.WriteLine(mbps);
_gpu1.SetCurrentContext();
_gpu1.CopyFromDevice(_gpuuintBufferIn1, _uintBufferOut1);
Assert.IsTrue(Compare(_uintBufferIn0, _uintBufferOut1));
ClearOutputsAndGPU(0);
ClearOutputsAndGPU(1);
}
