/// <summary> /// Gets all devices of the platform that match the specified device type. /// </summary> /// <param name="deviceType">The type of devices that is to be retrieved.</param> /// <exception cref="OpenClException">If the devices could not be retrieved, then a <see cref="OpenClException"/> is thrown.</exception> /// <returns>Returns a list of all devices that matched the specified device type.</returns> public IEnumerable <Device> GetDevices(Devices.DeviceType deviceType) { // Gets the number of available devices of the specified type uint numberOfAvailableDevices; Result result = DevicesNativeApi.GetDeviceIds(Handle, (Interop.Devices.DeviceType)deviceType, 0, null, out numberOfAvailableDevices); if (result != Result.Success) { throw new OpenClException("The number of available devices could not be queried.", result); } // Gets the pointers to the devices of the specified type IntPtr[] devicePointers = new IntPtr[numberOfAvailableDevices]; result = DevicesNativeApi.GetDeviceIds(Handle, (Interop.Devices.DeviceType)deviceType, numberOfAvailableDevices, devicePointers, out numberOfAvailableDevices); if (result != Result.Success) { throw new OpenClException("The devices could not be retrieved.", result); } // Converts the pointer to device objects foreach (IntPtr devicePointer in devicePointers) { yield return(new Device(devicePointer)); } }
public uint GetDeviceCount(DeviceType deviceType) { Result result = DevicesNativeApi.GetDeviceIds( Handle, (Interop.Devices.DeviceType)deviceType, 0, null, out uint numberOfAvailableDevices ); return(numberOfAvailableDevices); }
/// <summary> /// Provides a list of available OpenCL devices on the system /// </summary> /// <returns>A list of OpenCL devices</returns> public static List <ComputeDeviceDesc> GetDevices() { List <ComputeDeviceDesc> ret = new List <ComputeDeviceDesc>(); // Gets the number of available platforms uint numberOfAvailablePlatforms; Result result = PlatformsNativeApi.GetPlatformIds(0, null, out numberOfAvailablePlatforms); if (result != Result.Success) { throw new OpenClException("The number of platforms could not be queried.", result); } // Gets pointers to all the platforms IntPtr[] platformPointers = new IntPtr[numberOfAvailablePlatforms]; result = PlatformsNativeApi.GetPlatformIds(numberOfAvailablePlatforms, platformPointers, out numberOfAvailablePlatforms); if (result != Result.Success) { throw new OpenClException("The platforms could not be retrieved.", result); } // Converts the pointers to platform objects int platformId = 0; foreach (IntPtr platformPointer in platformPointers) { ++platformId; // Gets the number of available devices of the specified type uint numberOfAvailableDevices; Result result_d = DevicesNativeApi.GetDeviceIds(platformPointer, DeviceType.All, 0, null, out numberOfAvailableDevices); if (result_d != Result.Success) { throw new OpenClException("The number of available devices could not be queried.", result_d); } // Gets the pointers to the devices of the specified type IntPtr[] devicePointers = new IntPtr[numberOfAvailableDevices]; result_d = DevicesNativeApi.GetDeviceIds(platformPointer, DeviceType.All, numberOfAvailableDevices, devicePointers, out numberOfAvailableDevices); if (result_d != Result.Success) { throw new OpenClException("The devices could not be retrieved.", result_d); } // Converts the pointer to device objects int deviceId = 0; foreach (IntPtr devicePointer in devicePointers) { ++deviceId; OpenCLComputeDeviceDesc devDesc = new OpenCLComputeDeviceDesc(); devDesc.platform = platformPointer; devDesc.device = devicePointer; devDesc.platformId = platformId; devDesc.deviceId = deviceId; ret.Add(devDesc); } } return(ret); }