public void TestOclChangeDefaultDevice()
{
if (CvInvoke.HaveOpenCL && CvInvoke.UseOpenCL)
{
using (VectorOfOclPlatformInfo oclPlatformInfos = Ocl.OclInvoke.GetPlatformsInfo())
{
if (oclPlatformInfos.Size > 0)
{
for (int i = 0; i < oclPlatformInfos.Size; i++)
{
Ocl.PlatformInfo platformInfo = oclPlatformInfos[i];
for (int j = 0; j < platformInfo.DeviceNumber; j++)
{
Ocl.Device device = platformInfo.GetDevice(j);
Trace.WriteLine(String.Format("{0}Setting device to {1}", Environment.NewLine, device.Name));
//OclDevice d = new OclDevice();
//d.Set(device.NativeDevicePointer);
Ocl.Device defaultDevice = Ocl.Device.Default;
defaultDevice.Set(device.NativeDevicePointer);
Trace.WriteLine(String.Format("Current OpenCL default device: {0}", defaultDevice.Name));
UMat m = new UMat(2048, 2048, DepthType.Cv8U, 3);
m.SetTo(new MCvScalar(100, 100, 100));
CvInvoke.GaussianBlur(m, m, new Size(3, 3), 3);
Stopwatch watch = Stopwatch.StartNew();
m.SetTo(new MCvScalar(100, 100, 100));
CvInvoke.GaussianBlur(m, m, new Size(3, 3), 3);
watch.Stop();
Trace.WriteLine(String.Format("Device '{0}' time: {1} milliseconds", defaultDevice.Name,
watch.ElapsedMilliseconds));
CvInvoke.OclFinish();
}
}
}
Trace.WriteLine(Environment.NewLine + "Disable OpenCL");
CvInvoke.UseOpenCL = false;
UMat m2 = new UMat(2048, 2048, DepthType.Cv8U, 3);
m2.SetTo(new MCvScalar(100, 100, 100));
CvInvoke.GaussianBlur(m2, m2, new Size(3, 3), 3);
Stopwatch watch2 = Stopwatch.StartNew();
m2.SetTo(new MCvScalar(100, 100, 100));
CvInvoke.GaussianBlur(m2, m2, new Size(3, 3), 3);
watch2.Stop();
Trace.WriteLine(String.Format("CPU time: {0} milliseconds", watch2.ElapsedMilliseconds));
CvInvoke.UseOpenCL = true;
}
}
}
