NAME

       Interoperability with the CUDA Driver API -

   Functions
       static inline int hwloc_cuda_get_device_pci_ids (hwloc_topology_t topology , CUdevice
           cudevice, int *domain, int *bus, int *dev)
       static inline int hwloc_cuda_get_device_cpuset (hwloc_topology_t topology , CUdevice
           cudevice, hwloc_cpuset_t set)
       static inline hwloc_obj_t hwloc_cuda_get_device_pcidev (hwloc_topology_t topology,
           CUdevice cudevice)
       static inline hwloc_obj_t hwloc_cuda_get_device_osdev (hwloc_topology_t topology, CUdevice
           cudevice)
       static inline hwloc_obj_t hwloc_cuda_get_device_osdev_by_index (hwloc_topology_t topology,
           unsigned idx)

Detailed Description

       This interface offers ways to retrieve topology information about CUDA devices when using
       the CUDA Driver API.

Function Documentation

   static inline int hwloc_cuda_get_device_cpuset (hwloc_topology_t topology, CUdevicecudevice,
       hwloc_cpuset_tset) [static]
       Get the CPU set of logical processors that are physically close to device cudevice. Return
       the CPU set describing the locality of the CUDA device cudevice.

       Topology topology and device cudevice must match the local machine. I/O devices detection
       and the CUDA component are not needed in the topology.

       The function only returns the locality of the device. If more information about the device
       is needed, OS objects should be used instead, see hwloc_cuda_get_device_osdev() and
       hwloc_cuda_get_device_osdev_by_index().

       This function is currently only implemented in a meaningful way for Linux; other systems
       will simply get a full cpuset.

   static inline hwloc_obj_t hwloc_cuda_get_device_osdev (hwloc_topology_ttopology,
       CUdevicecudevice) [static]
       Get the hwloc OS device object corresponding to CUDA device cudevice. Return the hwloc OS
       device object that describes the given CUDA device cudevice. Return NULL if there is none.

       Topology topology and device cudevice must match the local machine. I/O devices detection
       and the NVML component must be enabled in the topology. If not, the locality of the object
       may still be found using hwloc_cuda_get_device_cpuset().

       Note:
           The corresponding hwloc PCI device may be found by looking at the result parent
           pointer.

   static inline hwloc_obj_t hwloc_cuda_get_device_osdev_by_index (hwloc_topology_ttopology,
       unsignedidx) [static]
       Get the hwloc OS device object corresponding to the CUDA device whose index is idx. Return
       the OS device object describing the CUDA device whose index is idx. Return NULL if there
       is none.

       The topology topology does not necessarily have to match the current machine. For instance
       the topology may be an XML import of a remote host. I/O devices detection and the CUDA
       component must be enabled in the topology.

       Note:
           The corresponding PCI device object can be obtained by looking at the OS device parent
           object.

           This function is identical to hwloc_cudart_get_device_osdev_by_index().

   static inline int hwloc_cuda_get_device_pci_ids (hwloc_topology_t topology, CUdevicecudevice,
       int *domain, int *bus, int *dev) [static]
       Return the domain, bus and device IDs of the CUDA device cudevice. Device cudevice must
       match the local machine.

   static inline hwloc_obj_t hwloc_cuda_get_device_pcidev (hwloc_topology_ttopology,
       CUdevicecudevice) [static]
       Get the hwloc PCI device object corresponding to the CUDA device cudevice. Return the PCI
       device object describing the CUDA device cudevice. Return NULL if there is none.

       Topology topology and device cudevice must match the local machine. I/O devices detection
       must be enabled in topology topology. The CUDA component is not needed in the topology.

Author

       Generated automatically by Doxygen for Hardware Locality (hwloc) from the source code.

Version 1.8                              Thu Dec 11 2Interoperability with the CUDA Driver API(3)