Functions

CUresult cuDeviceComputeCapability ( int* major, int* minor, CUdevice dev )

Returns the compute capability of the device.

Parameters

major

- Major revision number

minor

- Minor revision number

dev

- Device handle

Returns

CUDA_SUCCESS, CUDA_ERROR_DEINITIALIZED, CUDA_ERROR_NOT_INITIALIZED, CUDA_ERROR_INVALID_CONTEXT, CUDA_ERROR_INVALID_VALUE, CUDA_ERROR_INVALID_DEVICE

Deprecated

This function was deprecated as of CUDA 5.0 and its functionality superseded by cuDeviceGetAttribute().

Description

Returns in *major and *minor the major and minor revision numbers that define the compute capability of the device dev.

Note:

Note that this function may also return error codes from previous, asynchronous launches.

See also:

cuDeviceGetAttribute, cuDeviceGetCount, cuDeviceGetName, cuDeviceGetUuid, cuDeviceGet, cuDeviceTotalMem

CUresult cuDeviceGetProperties ( CUdevprop* prop, CUdevice dev )

Returns properties for a selected device.

Parameters

prop

- Returned properties of device

dev

- Device to get properties for

Returns

CUDA_SUCCESS, CUDA_ERROR_DEINITIALIZED, CUDA_ERROR_NOT_INITIALIZED, CUDA_ERROR_INVALID_CONTEXT, CUDA_ERROR_INVALID_VALUE, CUDA_ERROR_INVALID_DEVICE

Deprecated

This function was deprecated as of CUDA 5.0 and replaced by cuDeviceGetAttribute().

Description

Returns in *prop the properties of device dev. The CUdevprop structure is defined as:

‎     typedef struct CUdevprop_st {
           int maxThreadsPerBlock;
           int maxThreadsDim[3];
           int maxGridSize[3];
           int sharedMemPerBlock;
           int totalConstantMemory;
           int SIMDWidth;
           int memPitch;
           int regsPerBlock;
           int clockRate;
           int textureAlign
        } CUdevprop;

where:

• maxThreadsPerBlock is the maximum number of threads per block;

• maxThreadsDim[3] is the maximum sizes of each dimension of a block;

• maxGridSize[3] is the maximum sizes of each dimension of a grid;

• sharedMemPerBlock is the total amount of shared memory available per block in bytes;

• totalConstantMemory is the total amount of constant memory available on the device in bytes;

• SIMDWidth is the warp size;

• memPitch is the maximum pitch allowed by the memory copy functions that involve memory regions allocated through cuMemAllocPitch();

• regsPerBlock is the total number of registers available per block;

• clockRate is the clock frequency in kilohertz;

• textureAlign is the alignment requirement; texture base addresses that are aligned to textureAlign bytes do not need an offset applied to texture fetches.

Note:

Note that this function may also return error codes from previous, asynchronous launches.

See also:

cuDeviceGetAttribute, cuDeviceGetCount, cuDeviceGetName, cuDeviceGetUuid, cuDeviceGet, cuDeviceTotalMem