4.6. Device Management [DEPRECATED]

This section describes the device management functions of the low-level CUDA driver application programming interface.

Functions

CUresult cuDeviceComputeCapability ( int* major, int* minor, CUdevice dev )
Returns the compute capability of the device.
CUresult cuDeviceGetProperties ( CUdevprop* prop, CUdevice dev )
Returns properties for a selected device.

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
Deprecated

This function was deprecated as of CUDA 5.0 and its functionality superceded by cuDeviceGetAttribute().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, 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
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, cuDeviceGet, cuDeviceTotalMem