20 #include <hwloc/autogen/config.h>    21 #include <hwloc/helper.h>    22 #ifdef HWLOC_LINUX_SYS    23 #include <hwloc/linux.h>    46 static __hwloc_inline 
int    48                               CUdevice cudevice, 
int *domain, 
int *bus, 
int *dev)
    52 #if CUDA_VERSION >= 4000    53   cres = cuDeviceGetAttribute(domain, CU_DEVICE_ATTRIBUTE_PCI_DOMAIN_ID, cudevice);
    54   if (cres != CUDA_SUCCESS) {
    61   cres = cuDeviceGetAttribute(bus, CU_DEVICE_ATTRIBUTE_PCI_BUS_ID, cudevice);
    62   if (cres != CUDA_SUCCESS) {
    66   cres = cuDeviceGetAttribute(dev, CU_DEVICE_ATTRIBUTE_PCI_DEVICE_ID, cudevice);
    67   if (cres != CUDA_SUCCESS) {
    91 static __hwloc_inline 
int    95 #ifdef HWLOC_LINUX_SYS    97 #define HWLOC_CUDA_DEVICE_SYSFS_PATH_MAX 128    98   char path[HWLOC_CUDA_DEVICE_SYSFS_PATH_MAX];
   100   int domainid, busid, deviceid;
   110   sprintf(path, 
"/sys/bus/pci/devices/%04x:%02x:%02x.0/local_cpus", domainid, busid, deviceid);
   111   sysfile = fopen(path, 
"r");
   140   int domain, bus, dev;
   165         int domain, bus, dev;
   173                 if (strncmp(osdev->
name, 
"cuda", 4))
   209                     && !strncmp(
"cuda", osdev->
name, 4)
   210                     && atoi(osdev->
name + 4) == (
int) idx)
 static hwloc_obj_t hwloc_cuda_get_device_pcidev(hwloc_topology_t topology, CUdevice cudevice)
Get the hwloc PCI device object corresponding to the CUDA device cudevice. 
Definition: cuda.h:138
struct hwloc_obj * parent
Parent, NULL if root (system object) 
Definition: hwloc.h:403
PCI device. These objects have neither CPU sets nor node sets. They are not added to the topology unl...
Definition: hwloc.h:246
static hwloc_obj_t hwloc_cuda_get_device_osdev(hwloc_topology_t topology, CUdevice cudevice)
Get the hwloc OS device object corresponding to CUDA device cudevice. 
Definition: cuda.h:162
unsigned char bus
Definition: hwloc.h:544
union hwloc_obj_attr_u * attr
Object type-specific Attributes, may be NULL if no attribute value was found. 
Definition: hwloc.h:373
static hwloc_const_cpuset_t hwloc_topology_get_complete_cpuset(hwloc_topology_t topology)
Get complete CPU set. 
Definition: helper.h:803
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:1215
struct hwloc_topology * hwloc_topology_t
Topology context. 
Definition: hwloc.h:633
struct hwloc_obj_attr_u::hwloc_pcidev_attr_s pcidev
static hwloc_obj_t hwloc_cuda_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: cuda.h:203
unsigned char dev
Definition: hwloc.h:544
hwloc_obj_osdev_type_t type
Definition: hwloc.h:567
unsigned char func
Definition: hwloc.h:544
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:132
char * name
Object-specific name if any. Mostly used for identifying OS devices and Misc objects where a name str...
Definition: hwloc.h:366
unsigned short domain
Definition: hwloc.h:543
void hwloc_bitmap_copy(hwloc_bitmap_t dst, hwloc_const_bitmap_t src)
Copy the contents of bitmap src into the already allocated bitmap dst. 
int hwloc_bitmap_iszero(hwloc_const_bitmap_t bitmap)
Test whether bitmap bitmap is empty. 
struct hwloc_obj_attr_u::hwloc_osdev_attr_s osdev
int hwloc_linux_parse_cpumap_file(FILE *file, hwloc_cpuset_t set)
Convert a linux kernel cpumap file file into hwloc CPU set. 
Operating system co-processor device. For instance "mic0" for a Xeon Phi (MIC) on Linux...
Definition: hwloc.h:297
hwloc_obj_type_t type
Type of object. 
Definition: hwloc.h:360
static int hwloc_cuda_get_device_cpuset(hwloc_topology_t topology, CUdevice cudevice, hwloc_cpuset_t set)
Get the CPU set of logical processors that are physically close to device cudevice. 
Definition: cuda.h:92
static int hwloc_cuda_get_device_pci_ids(hwloc_topology_t topology, CUdevice cudevice, int *domain, int *bus, int *dev)
Return the domain, bus and device IDs of the CUDA device cudevice. 
Definition: cuda.h:47
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:1252
Structure of a topology object. 
Definition: hwloc.h:358
int hwloc_topology_is_thissystem(hwloc_topology_t restrict topology)
Does the topology context come from this system?