/// <summary>
/// Construct a device.
/// </summary>
///
/// <param name="device">The OpenCL device to base on.</param>
public EncogCLQueue(EncogCLDevice device)
{
EncogCLPlatform platform = device.Platform;
this.device = device;
this.commands = this.commands = new ComputeCommandQueue(platform.Context, device.Device, ComputeCommandQueueFlags.None);
}
/// <summary>
/// Choose a device. If a GPU is found, return that. Otherwise try to find a
/// CPU.
/// </summary>
///
/// <returns>The first device detected.</returns>
public EncogCLDevice ChooseDevice()
{
EncogCLDevice result = ChooseDevice(true);
if (result == null)
{
result = ChooseDevice(false);
}
return(result);
}
/// <summary>
/// Construct an OpenCL platform.
/// </summary>
///
/// <param name="platform">The OpenCL platform.</param>
public EncogCLPlatform(ComputePlatform platform)
{
this.platform = platform;
this.devices = new List <EncogCLDevice>();
ComputeContextPropertyList cpl = new ComputeContextPropertyList(platform);
this.context = new ComputeContext(ComputeDeviceTypes.Default, cpl, null, IntPtr.Zero);
this.Name = platform.Name;
this.Vender = platform.Vendor;
this.Enabled = true;
foreach (ComputeDevice device in context.Devices)
{
EncogCLDevice adapter = new EncogCLDevice(this, device);
this.devices.Add(adapter);
}
}
/// <summary>
/// Evaluate training, use OpenCL.
/// </summary>
/// <param name="device">The OpenCL device, null for CPU.</param>
/// <param name="input">Input neurons.</param>
/// <param name="hidden1">Hidden 1 neurons.</param>
/// <param name="hidden2">Hidden 2 neurons.</param>
/// <param name="output">Output neurons.</param>
/// <returns>The result of the evaluation.</returns>
public static int EvaluateTrain(EncogCLDevice device, int input, int hidden1, int hidden2,
int output)
{
BasicNetwork network = EncogUtility.SimpleFeedForward(input,
hidden1, hidden2, output, true);
INeuralDataSet training = RandomTrainingFactory.Generate(1000,
10000, input, output, -1, 1);
OpenCLTrainingProfile profile = null;
#if !SILVERLIGHT
if (device != null)
profile = new OpenCLTrainingProfile(device);
#endif
return EvaluateTrain(profile, network, training);
}
/// <summary>
/// Construct an OpenCL device performer.
/// </summary>
/// <param name="number">The device number.</param>
/// <param name="device">The device.</param>
public ConcurrentTrainingPerformerOpenCL(int number, EncogCLDevice device)
: base(number)
{
if (EncogFramework.Instance.CL == null)
{
throw new NeuralNetworkError(
"Can't use an OpenCL performer, because OpenCL "
+ "is not enabled.");
}
if (EncogFramework.Instance.CL == null)
{
throw new NeuralNetworkError("Can't use a null OpenCL device.");
}
this.device = device;
}
/// <summary>
/// Construct an OpenCL platform.
/// </summary>
///
/// <param name="platform">The OpenCL platform.</param>
public EncogCLPlatform(ComputePlatform platform)
{
this.platform = platform;
this.devices = new List<EncogCLDevice>();
ComputeContextPropertyList cpl = new ComputeContextPropertyList(platform);
this.context = new ComputeContext(ComputeDeviceTypes.Default, cpl, null, IntPtr.Zero);
this.Name = platform.Name;
this.Vender = platform.Vendor;
this.Enabled = true;
foreach (ComputeDevice device in context.Devices)
{
EncogCLDevice adapter = new EncogCLDevice(this, device);
this.devices.Add(adapter);
}
}
/// <summary>
/// Construct a training profile with the specified device and the value of one for all ratios.
/// </summary>
///
/// <param name="device">The device to use.</param>
public OpenCLTrainingProfile(EncogCLDevice device)
: this(device, 1.0d, 1, 1.0d)
{
}
/// <summary>
/// Construct a training profile.
/// </summary>
///
/// <param name="device">The device to use.</param>
/// <param name="localRatio">The local ratio.</param>
/// <param name="globalRatio">The global ratio.</param>
/// <param name="segmentationRatio">The segmentation ratio.</param>
public OpenCLTrainingProfile(EncogCLDevice device, double localRatio,
int globalRatio, double segmentationRatio)
: base()
{
this.device = device;
if (localRatio < 0 || globalRatio < 0 || segmentationRatio < 0)
{
throw new OpenCLError("None of the ratios can be below zero.");
}
if (localRatio > 1.0d)
{
throw new OpenCLError(
"The local ratio cannot be greater than 1.0. That would cause the OpenCL device to have more local items than it can handle.");
}
if (globalRatio < 1.0d)
{
throw new OpenCLError(
"The global ratio cannot be less than 1.0. That would cause the global work area to be less than a local work area.");
}
if (segmentationRatio > 1.0d)
{
throw new OpenCLError(
"The segmentation ratio cannot be greater than 1.0. That would cause the trainer to require more training elements per iteration than exist.");
}
this.localRatio = localRatio;
this.globalRatio = globalRatio;
this.segmentationRatio = segmentationRatio;
}
/// <summary>
/// Evaluate the OpenCL device.
/// </summary>
private void EvalOpenCL()
{
try
{
// did the caller assign a device? If not, use the first GPU,
// failing that,
// use the first CPU. Failing that, as well, don't test OpenCL.
if (this.device == null)
{
if (EncogFramework.Instance.CL == null)
EncogFramework.Instance.InitCL();
this.device = EncogFramework.Instance.CL.ChooseDevice();
}
}
catch (Exception)
{
this.report.Report(EncogBenchmark.STEPS, EncogBenchmark.STEP2,
"No OpenCL devices, result: 0");
this.clScore = 0;
}
int small = 0, medium = 0, large = 0, huge = 0;
try
{
small = Evaluate.EvaluateTrain(device, 2, 4, 0, 1);
this.report.Report(EncogBenchmark.STEPS, EncogBenchmark.STEP2,
"Evaluate OpenCL, tiny= "
+ Format.FormatInteger(small / 100));
}
catch (Exception)
{
this.report.Report(EncogBenchmark.STEPS, EncogBenchmark.STEP2,
"Evaluate OpenCL, tiny FAILED");
}
try
{
medium = Evaluate.EvaluateTrain(device, 10, 20, 0, 1);
this.report.Report(EncogBenchmark.STEPS, EncogBenchmark.STEP2,
"Evaluate OpenCL, small= "
+ Format.FormatInteger(medium / 30));
}
catch (Exception)
{
this.report.Report(EncogBenchmark.STEPS, EncogBenchmark.STEP2,
"Evaluate OpenCL, small FAILED");
}
try
{
large = Evaluate.EvaluateTrain(device, 100, 200, 40, 5);
this.report.Report(EncogBenchmark.STEPS, EncogBenchmark.STEP2,
"Evaluate OpenCL, large= " + Format.FormatInteger(large));
}
catch (Exception)
{
this.report.Report(EncogBenchmark.STEPS, EncogBenchmark.STEP2,
"Evaluate OpenCL, large FAILED");
}
try
{
huge = Evaluate.EvaluateTrain(device, 200, 300, 200, 50);
this.report.Report(EncogBenchmark.STEPS, EncogBenchmark.STEP2,
"Evaluate OpenCL, huge= " + Format.FormatInteger(huge));
}
catch (Exception)
{
this.report.Report(EncogBenchmark.STEPS, EncogBenchmark.STEP2,
"Evaluate OpenCL, huge FAILED");
}
int result = (small / 100) + (medium / 30) + large + huge;
this.report.Report(EncogBenchmark.STEPS, EncogBenchmark.STEP2,
"OpenCL result: " + result);
this.clScore = result;
}
/// <summary>
/// Construct a device.
/// </summary>
///
/// <param name="device">The OpenCL device to base on.</param>
public EncogCLQueue(EncogCLDevice device)
{
EncogCLPlatform platform = device.Platform;
this.device = device;
this.commands = this.commands = new ComputeCommandQueue(platform.Context, device.Device, ComputeCommandQueueFlags.None);
}