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8 Module DocumentationNote:Note that this function may also return error codes from previous, asynchronous launches.See also:cudaGetErrorString, cudaErrorGenerated on Wed Apr 1 16:11:42 2009 for NVIDIA CUDA Library by Doxygen
3.4 Device Management 93.4 Device ManagementFunctions• cudaError_t cudaChooseDevice (int ∗device, const struct cudaDeviceProp ∗prop)Select compute-device which best matches criteria.• cudaError_t cudaGetDevice (int ∗device)Returns which device is currently being used.• cudaError_t cudaGetDeviceCount (int ∗count)Returns the number of compute-capable devices.• cudaError_t cudaGetDeviceProperties (struct cudaDeviceProp ∗prop, int device)Returns information about the compute-device.• cudaError_t cudaSetDevice (int device)Set device to be used for GPU executions.• cudaError_t cudaSetDeviceFlags (int flags)Sets flags to be used for device executions.• cudaError_t cudaSetValidDevices (int ∗device_arr, int len)Set a list of devices that can be used for CUDA.3.4.1 Detailed DescriptionThis section describes the device management functions of the CUDA runtime application programming interface.3.4.2 Function Documentation3.4.2.1 cudaError_t cudaChooseDevice (int ∗ device, const struct cudaDeviceProp ∗ prop)Returns in ∗device the device which has properties that best match ∗prop.Parameters:device - Device with best matchprop - Desired device propertiesReturns:cudaSuccess, cudaErrorInvalidValueNote:Note that this function may also return error codes from previous, asynchronous launches.See also:cudaGetDeviceCount, cudaGetDevice, cudaSetDevice, cudaGetDevicePropertiesGenerated on Wed Apr 1 16:11:42 2009 for NVIDIA CUDA Library by Doxygen
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