cuda.bindings._v2.driver.device_get_p2p_atomic_capabilities#

cuda.bindings._v2.driver.device_get_p2p_atomic_capabilities( intptr_t operations, unsigned int count, int src_device, int dst_device, ) → unsigned int#

Queries details about atomic operations supported between two devices.

Returns in *capabilities the details about requested atomic *operations over the the link between src_device and dst_device. The allocated size of *operations and *capabilities must be count. For each CUatomicOperation in *operations, the corresponding result in *capabilities will be a bitmask indicating which of CUatomicOperationCapability the link supports natively. Returns CUDA_ERROR_INVALID_DEVICE if src_device or dst_device are not valid or if they represent the same device. Returns CUDA_ERROR_INVALID_VALUE if *capabilities or *operations is NULL, if count is 0, or if any of *operations is not valid.

Parameters:

operations (intptr_t) – Requested operations.
count (unsigned int) – Count of requested operations and size of capabilities.
src_device (int) – The source device of the target link.
dst_device (int) – The destination device of the target link.

Returns:

Returned capability details of each requested: operation.

Return type:

unsigned int