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Portable Hardware Locality (hwloc) Documentation: v1.4.1

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CUDA Driver API Specific Functions

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)

Function Documentation

static inline int hwloc_cuda_get_device_cpuset ( hwloc_topology_t topology  ,
CUdevice  cudevice,
hwloc_cpuset_t  set 
) [static]

Get the CPU set of logical processors that are physically close to device cudevice.

For the given CUDA Driver API device cudevice, read the corresponding kernel-provided cpumap file and return the corresponding CPU set. This function is currently only implemented in a meaningful way for Linux; other systems will simply get a full cpuset.

static inline int hwloc_cuda_get_device_pci_ids ( hwloc_topology_t topology  ,
CUdevice  cudevice,
int *  domain,
int *  bus,
int *  dev 
) [static]

Return the domain, bus and device IDs of device cudevice.

static inline hwloc_obj_t hwloc_cuda_get_device_pcidev ( hwloc_topology_t  topology,
CUdevice  cudevice 
) [static]

Get the hwloc object for the PCI device corresponding to device cudevice.

For the given CUDA Runtime API device cudevice, return the hwloc PCI object containing the device. Returns NULL if there is none.