16 #ifndef HWLOC_CUDART_H    17 #define HWLOC_CUDART_H    20 #include "hwloc/autogen/config.h"    21 #include "hwloc/helper.h"    22 #ifdef HWLOC_LINUX_SYS    23 #include "hwloc/linux.h"    27 #include <cuda_runtime_api.h>    47 static __hwloc_inline 
int    49                                 int idx, 
int *domain, 
int *bus, 
int *dev)
    52   struct cudaDeviceProp prop;
    54   cerr = cudaGetDeviceProperties(&prop, idx);
    60 #if CUDA_VERSION >= 4000    61   *domain = prop.pciDomainID;
    67   *dev = prop.pciDeviceID;
    88 static __hwloc_inline 
int    92 #ifdef HWLOC_LINUX_SYS    94 #define HWLOC_CUDART_DEVICE_SYSFS_PATH_MAX 128    95   char path[HWLOC_CUDART_DEVICE_SYSFS_PATH_MAX];
   106   sprintf(path, 
"/sys/bus/pci/devices/%04x:%02x:%02x.0/local_cpus", (
unsigned) domain, (
unsigned) bus, (
unsigned) dev);
   130   int domain, bus, dev;
   162                     && !strncmp(
"cuda", osdev->
name, 4)
   163                     && atoi(osdev->
name + 4) == (
int) idx)
 Operating system co-processor device. For instance "mic0" for a Xeon Phi (MIC) on Linux...
Definition: hwloc.h:336
int hwloc_bitmap_copy(hwloc_bitmap_t dst, hwloc_const_bitmap_t src)
Copy the contents of bitmap src into the already allocated bitmap dst. 
Structure of a topology object. 
Definition: hwloc.h:381
static hwloc_obj_t hwloc_get_pcidev_by_busid(hwloc_topology_t topology, unsigned domain, unsigned bus, unsigned dev, unsigned func)
Find the PCI device object matching the PCI bus id given domain, bus device and function PCI bus id...
Definition: helper.h:1092
int hwloc_topology_is_thissystem(hwloc_topology_t restrict topology)
Does the topology context come from this system? 
static hwloc_obj_t hwloc_cudart_get_device_pcidev(hwloc_topology_t topology, int idx)
Get the hwloc PCI device object corresponding to the CUDA device whose index is idx. 
Definition: cudart.h:128
static hwloc_obj_t hwloc_get_next_osdev(hwloc_topology_t topology, hwloc_obj_t prev)
Get the next OS device in the system. 
Definition: helper.h:1129
static int hwloc_cudart_get_device_pci_ids(hwloc_topology_t topology, int idx, int *domain, int *bus, int *dev)
Return the domain, bus and device IDs of the CUDA device whose index is idx. 
Definition: cudart.h:48
struct hwloc_obj_attr_u::hwloc_osdev_attr_s osdev
static hwloc_obj_t hwloc_cudart_get_device_osdev_by_index(hwloc_topology_t topology, unsigned idx)
Get the hwloc OS device object corresponding to the CUDA device whose index is idx. 
Definition: cudart.h:156
static int hwloc_cudart_get_device_cpuset(hwloc_topology_t topology, int idx, hwloc_cpuset_t set)
Get the CPU set of logical processors that are physically close to device idx. 
Definition: cudart.h:89
char * name
Object-specific name if any. Mostly used for identifying OS devices and Misc objects where a name str...
Definition: hwloc.h:393
int hwloc_linux_read_path_as_cpumask(const char *path, hwloc_bitmap_t set)
Convert a linux kernel cpumask file path into a hwloc bitmap set. 
struct hwloc_topology * hwloc_topology_t
Topology context. 
Definition: hwloc.h:667
hwloc_bitmap_t hwloc_cpuset_t
A CPU set is a bitmap whose bits are set according to CPU physical OS indexes. 
Definition: hwloc.h:140
union hwloc_obj_attr_u * attr
Object type-specific Attributes, may be NULL if no attribute value was found. 
Definition: hwloc.h:400
hwloc_const_cpuset_t hwloc_topology_get_complete_cpuset(hwloc_topology_t topology)
Get complete CPU set. 
int hwloc_bitmap_iszero(hwloc_const_bitmap_t bitmap)
Test whether bitmap bitmap is empty. 
hwloc_obj_osdev_type_t type
Definition: hwloc.h:641