56 #include <hwloc/autogen/config.h> 57 #include <sys/types.h> 65 #include <hwloc/rename.h> 71 #include <hwloc/bitmap.h> 95 #define HWLOC_API_VERSION 0x00020000 104 #define HWLOC_COMPONENT_ABI 5 175 #define HWLOC_OBJ_TYPE_MIN HWLOC_OBJ_MACHINE 367 #define HWLOC_UNKNOWN_INDEX (unsigned)-1 632 struct hwloc_topology;
810 static __hwloc_inline
int 826 static __hwloc_inline
int 846 static __hwloc_inline
int 936 hwloc_obj_t obj,
const char * __hwloc_restrict separator,
1006 static __hwloc_inline
const char *
1190 #ifdef hwloc_thread_t 1201 #ifdef hwloc_thread_t 1652 static __hwloc_inline
void *
2253 #include <hwloc/helper.h> 2256 #include <hwloc/inlines.h> 2259 #include <hwloc/export.h> 2262 #include <hwloc/distances.h> 2265 #include <hwloc/diff.h> 2268 #include <hwloc/deprecated.h> int hwloc_get_thread_cpubind(hwloc_topology_t topology, hwloc_thread_t thread, hwloc_cpuset_t set, int flags)
Get the current physical binding of thread tid.
struct hwloc_obj * io_first_child
First I/O child. Bridges, PCI and OS devices are listed here (io_arity and io_first_child) instead of...
Definition: hwloc.h:448
Value returned by hwloc_compare_types() when types can not be compared.
Definition: hwloc.h:340
hwloc_obj_type_t type
Type of object.
Definition: hwloc.h:359
void * hwloc_alloc(hwloc_topology_t topology, size_t len)
Allocate some memory.
char * name
Object-specific name if any. Mostly used for identifying OS devices and Misc objects where a name str...
Definition: hwloc.h:369
hwloc_const_bitmap_t hwloc_const_nodeset_t
A non-modifiable hwloc_nodeset_t.
Definition: hwloc.h:159
struct hwloc_obj * hwloc_obj_t
Convenience typedef; a pointer to a struct hwloc_obj.
Definition: hwloc.h:549
static hwloc_obj_t hwloc_get_obj_by_type(hwloc_topology_t topology, hwloc_obj_type_t type, unsigned idx)
Returns the topology object at logical index idx with type type.
unsigned char get_thisthread_membind
Definition: hwloc.h:1953
int hwloc_set_cpubind(hwloc_topology_t topology, hwloc_const_cpuset_t set, int flags)
Bind current process or thread on cpus given in physical bitmap set.
unsigned short vendor_id
Definition: hwloc.h:590
int hwloc_topology_set_io_types_filter(hwloc_topology_t topology, enum hwloc_type_filter_e filter)
Set the filtering for all I/O object types.
struct hwloc_topology * hwloc_topology_t
Topology context.
Definition: hwloc.h:637
unsigned char set_proc_membind
Definition: hwloc.h:1947
Bridge (filtered out by default). Any bridge that connects the host or an I/O bus, to another I/O bus. They are not added to the topology unless I/O discovery is enabled with hwloc_topology_set_flags(). I/O objects are not listed in the main children list, but rather in the dedicated io children list. I/O objects have NULL CPU and node sets.
Definition: hwloc.h:247
Operating system openfabrics device. For instance the "mlx4_0" InfiniBand HCA, or "hfi1_0" Omni-Path ...
Definition: hwloc.h:307
Set of flags describing actual support for this topology.
Definition: hwloc.h:1980
Migrate existing allocated memory. If the memory cannot be migrated and the HWLOC_MEMBIND_STRICT flag...
Definition: hwloc.h:1411
int hwloc_topology_get_depth(hwloc_topology_t restrict topology)
Get the depth of the hierarchical tree of objects.
unsigned char numa
Detecting the number of NUMA nodes is supported.
Definition: hwloc.h:1901
Avoid any effect on memory binding.
Definition: hwloc.h:1147
hwloc_obj_type_t hwloc_get_depth_type(hwloc_topology_t topology, int depth)
Returns the type of objects at depth depth.
hwloc_uint64_t local_memory
Local memory (in bytes)
Definition: hwloc.h:555
unsigned page_types_len
Size of array page_types.
Definition: hwloc.h:556
hwloc_uint64_t gp_index
Global persistent index. Generated by hwloc, unique across the topology (contrary to os_index) and pe...
Definition: hwloc.h:540
unsigned char get_area_memlocation
Definition: hwloc.h:1971
int hwloc_topology_abi_check(hwloc_topology_t topology)
Verify that the topology is compatible with the current hwloc library.
int hwloc_topology_dup(hwloc_topology_t *newtopology, hwloc_topology_t oldtopology)
Duplicate a topology.
Bind all threads of the current (possibly) multithreaded process.
Definition: hwloc.h:1101
Reset the memory allocation policy to the system default. Depending on the operating system...
Definition: hwloc.h:1332
unsigned char get_thisproc_cpubind
Definition: hwloc.h:1915
int depth
Vertical index in the hierarchy.
Definition: hwloc.h:380
hwloc_obj_t hwloc_topology_alloc_group_object(hwloc_topology_t topology)
Allocate a Group object to insert later with hwloc_topology_insert_group_object().
hwloc_cpuset_t complete_cpuset
The complete CPU set of logical processors of this object,.
Definition: hwloc.h:482
hwloc_nodeset_t nodeset
NUMA nodes covered by this object or containing this object.
Definition: hwloc.h:495
int hwloc_topology_set_flags(hwloc_topology_t topology, unsigned long flags)
Set OR'ed flags to non-yet-loaded topology.
Operating system network device. For instance the "eth0" interface on Linux.
Definition: hwloc.h:305
enum hwloc_obj_cache_type_e hwloc_obj_cache_type_t
Cache type.
unsigned kind
Internally-used kind of group.
Definition: hwloc.h:581
Ignore all objects of this type.
Definition: hwloc.h:2020
struct hwloc_info_s * infos
Array of stringified info type=name.
Definition: hwloc.h:531
Operating system co-processor device. For instance "mic0" for a Xeon Phi (MIC) on Linux...
Definition: hwloc.h:312
hwloc_obj_t hwloc_get_obj_by_depth(hwloc_topology_t topology, int depth, unsigned idx)
Returns the topology object at logical index idx from depth depth.
int hwloc_topology_set_synthetic(hwloc_topology_t restrict topology, const char *restrict description)
Enable synthetic topology.
NUMA node. An object that contains memory that is directly and byte-accessible to the host processors...
Definition: hwloc.h:230
unsigned misc_arity
Number of Misc children. These children are listed in misc_first_child.
Definition: hwloc.h:457
static hwloc_obj_t hwloc_get_next_obj_by_depth(hwloc_topology_t topology, int depth, hwloc_obj_t prev)
Returns the next object at depth depth.
unsigned depth
Definition: hwloc.h:607
hwloc_uint64_t size
Size of pages.
Definition: hwloc.h:563
unsigned char migrate_membind
Definition: hwloc.h:1969
int hwloc_topology_set_type_filter(hwloc_topology_t topology, hwloc_obj_type_t type, enum hwloc_type_filter_e filter)
Set the filtering for the given object type.
void * userdata
Application-given private data pointer, initialized to NULL, use it as you wish. See hwloc_topology_s...
Definition: hwloc.h:535
hwloc_membind_policy_t
Memory binding policy.
Definition: hwloc.h:1324
int hwloc_get_area_memlocation(hwloc_topology_t topology, const void *addr, size_t len, hwloc_bitmap_t set, int flags)
Get the NUMA nodes where memory identified by (addr, len ) is physically allocated.
int hwloc_obj_type_snprintf(char *restrict string, size_t size, hwloc_obj_t obj, int verbose)
Stringify the type of a given topology object into a human-readable form.
For each page bound with this policy, by next time it is touched (and next time only), it is moved from its current location to the local NUMA node of the thread where the memory reference occurred (if it needs to be moved at all).
Definition: hwloc.h:1363
Remove all objects that became CPU-less. By default, only objects that contain no PU and no memory ar...
Definition: hwloc.h:2111
int hwloc_get_proc_cpubind(hwloc_topology_t topology, hwloc_pid_t pid, hwloc_cpuset_t set, int flags)
Get the current physical binding of process pid.
unsigned char interleave_membind
Definition: hwloc.h:1965
int hwloc_get_cpubind(hwloc_topology_t topology, hwloc_cpuset_t set, int flags)
Get current process or thread binding.
int hwloc_set_area_membind(hwloc_topology_t topology, const void *addr, size_t len, hwloc_const_bitmap_t set, hwloc_membind_policy_t policy, int flags)
Bind the already-allocated memory identified by (addr, len) to the NUMA node(s) specified by set...
unsigned char get_proc_last_cpu_location
Definition: hwloc.h:1931
int hwloc_obj_add_info(hwloc_obj_t obj, const char *name, const char *value)
Add the given info name and value pair to the given object.
Physical package. The physical package that usually gets inserted into a socket on the motherboard...
Definition: hwloc.h:186
hwloc_membind_flags_t
Memory binding flags.
Definition: hwloc.h:1387
int hwloc_set_membind(hwloc_topology_t topology, hwloc_const_bitmap_t set, hwloc_membind_policy_t policy, int flags)
Set the default memory binding policy of the current process or thread to prefer the NUMA node(s) spe...
struct hwloc_obj_attr_u::hwloc_pcidev_attr_s pcidev
struct hwloc_obj * parent
Parent, NULL if root (Machine object)
Definition: hwloc.h:407
int hwloc_topology_set_pid(hwloc_topology_t restrict topology, hwloc_pid_t pid)
Change which process the topology is viewed from.
union hwloc_obj_attr_u::hwloc_bridge_attr_s::@0 upstream
int hwloc_set_thread_cpubind(hwloc_topology_t topology, hwloc_thread_t thread, hwloc_const_cpuset_t set, int flags)
Bind a thread thread on cpus given in physical bitmap set.
hwloc_get_type_depth_e
Definition: hwloc.h:766
struct hwloc_obj * next_cousin
Next object of same type and depth.
Definition: hwloc.h:403
unsigned char subordinate_bus
Definition: hwloc.h:603
Unified cache.
Definition: hwloc.h:287
int hwloc_type_sscanf(const char *string, hwloc_obj_type_t *typep, union hwloc_obj_attr_u *attrp, size_t attrsize)
Return an object type and attributes from a type string.
int hwloc_topology_set_xml(hwloc_topology_t restrict topology, const char *restrict xmlpath)
Enable XML-file based topology.
int hwloc_obj_add_other_obj_sets(hwloc_obj_t dst, hwloc_obj_t src)
Setup object cpusets/nodesets by OR'ing another object's sets.
hwloc_obj_bridge_type_t downstream_type
Definition: hwloc.h:606
Array of local memory page types, NULL if no local memory and page_types is 0.
Definition: hwloc.h:562
unsigned os_index
OS-provided physical index number. It is not guaranteed unique across the entire machine, except for PUs and NUMA nodes. Set to HWLOC_UNKNOWN_INDEX if unknown or irrelevant for this object.
Definition: hwloc.h:362
Consider the bitmap argument as a nodeset.
Definition: hwloc.h:1435
unsigned subkind
Internally-used subkind to distinguish different levels of groups with same kind. ...
Definition: hwloc.h:582
int hwloc_topology_restrict(hwloc_topology_t restrict topology, hwloc_const_cpuset_t cpuset, unsigned long flags)
Restrict the topology to the given CPU set.
Virtual depth for Misc object.
Definition: hwloc.h:773
unsigned char dev
Definition: hwloc.h:588
int hwloc_topology_set_all_types_filter(hwloc_topology_t topology, enum hwloc_type_filter_e filter)
Set the filtering for all object types.
Set policy for a specific thread of the current process. This flag is mutually exclusive with HWLOC_M...
Definition: hwloc.h:1397
Objects of given type exist at different depth in the topology (only for Groups). ...
Definition: hwloc.h:768
hwloc_type_filter_e
Type filtering flags.
Definition: hwloc.h:2006
void * hwloc_topology_get_userdata(hwloc_topology_t topology)
Retrieve the topology-specific userdata pointer.
int hwloc_set_proc_cpubind(hwloc_topology_t topology, hwloc_pid_t pid, hwloc_const_cpuset_t set, int flags)
Bind a process pid on cpus given in physical bitmap set.
struct hwloc_obj_attr_u::hwloc_numanode_attr_s numanode
void hwloc_topology_destroy(hwloc_topology_t topology)
Terminate and free a topology context.
int symmetric_subtree
Set if the subtree of normal objects below this object is symmetric, which means all normal children ...
Definition: hwloc.h:422
hwloc_cpuset_t cpuset
CPUs covered by this object.
Definition: hwloc.h:467
unsigned char firsttouch_membind
Definition: hwloc.h:1961
unsigned char get_thread_cpubind
Definition: hwloc.h:1927
Instruction cache (filtered out by default).
Definition: hwloc.h:289
Level 2 instruction Cache (filtered out by default).
Definition: hwloc.h:214
hwloc_cpubind_flags_t
Process/Thread binding flags.
Definition: hwloc.h:1098
Bind current thread of current process.
Definition: hwloc.h:1105
unsigned short domain
Definition: hwloc.h:602
unsigned char revision
Definition: hwloc.h:591
hwloc_topology_flags_e
Flags to be set onto a topology context before load.
Definition: hwloc.h:1802
int hwloc_compare_types(hwloc_obj_type_t type1, hwloc_obj_type_t type2)
Compare the depth of two object types.
hwloc_obj_bridge_type_e
Type of one side (upstream or downstream) of an I/O bridge.
Definition: hwloc.h:293
int hwloc_get_proc_last_cpu_location(hwloc_topology_t topology, hwloc_pid_t pid, hwloc_cpuset_t set, int flags)
Get the last physical CPU where a process ran.
unsigned short device_id
Definition: hwloc.h:590
Move I/O objects to ancestors if their parents are removed during restriction. If this flag is not se...
Definition: hwloc.h:2123
struct hwloc_obj * memory_first_child
First Memory child. NUMA nodes are listed here (memory_arity and memory_first_child) instead of in th...
Definition: hwloc.h:436
Avoid any effect on CPU binding.
Definition: hwloc.h:1424
Allocate memory on the specified nodes.
Definition: hwloc.h:1347
unsigned char alloc_membind
Definition: hwloc.h:1959
Level 5 Data (or Unified) Cache.
Definition: hwloc.h:211
unsigned short domain
Definition: hwloc.h:587
Only keep likely-important objects of the given type.
Definition: hwloc.h:2049
int hwloc_topology_init(hwloc_topology_t *topologyp)
Allocate a topology context.
struct hwloc_obj * last_child
Last normal child.
Definition: hwloc.h:419
Keep all objects of this type.
Definition: hwloc.h:2012
Allocate each memory page individually on the local NUMA node of the thread that touches it...
Definition: hwloc.h:1343
unsigned long hwloc_topology_get_flags(hwloc_topology_t topology)
Get OR'ed flags of a topology.
Structure of a topology object.
Definition: hwloc.h:357
unsigned char set_thisproc_cpubind
Definition: hwloc.h:1913
unsigned depth
Depth of cache (e.g., L1, L2, ...etc.)
Definition: hwloc.h:571
unsigned char bus
Definition: hwloc.h:588
Virtual depth for bridge object level.
Definition: hwloc.h:770
Level 3 instruction Cache (filtered out by default).
Definition: hwloc.h:215
enum hwloc_obj_osdev_type_e hwloc_obj_osdev_type_t
Type of a OS device.
hwloc_compare_types_e
Definition: hwloc.h:339
int hwloc_topology_is_thissystem(hwloc_topology_t restrict topology)
Does the topology context come from this system?
Flags describing actual discovery support for this topology.
Definition: hwloc.h:1897
struct hwloc_obj_attr_u::hwloc_group_attr_s group
struct hwloc_obj * prev_sibling
Previous object below the same parent (inside the same list of children).
Definition: hwloc.h:410
unsigned io_arity
Number of I/O children. These children are listed in io_first_child.
Definition: hwloc.h:445
int hwloc_topology_set_icache_types_filter(hwloc_topology_t topology, enum hwloc_type_filter_e filter)
Set the filtering for all instruction cache object types.
char * subtype
Subtype string to better describe the type field.
Definition: hwloc.h:360
const struct hwloc_topology_support * hwloc_topology_get_support(hwloc_topology_t restrict topology)
Retrieve the topology support.
Only ignore objects if their entire level does not bring any structure.
Definition: hwloc.h:2034
char * name
Info name.
Definition: hwloc.h:620
hwloc_uint64_t count
Number of pages of this size.
Definition: hwloc.h:564
hwloc_restrict_flags_e
Flags to be given to hwloc_topology_restrict().
Definition: hwloc.h:2106
Group objects. Objects which do not fit in the above but are detected by hwloc and are useful to take...
Definition: hwloc.h:217
int hwloc_topology_load(hwloc_topology_t topology)
Build the actual topology.
struct hwloc_obj * prev_cousin
Previous object of same type and depth.
Definition: hwloc.h:404
unsigned short subdevice_id
Definition: hwloc.h:590
struct hwloc_obj_attr_u::hwloc_numanode_attr_s::hwloc_memory_page_type_s * page_types
Set policy for all threads of the specified (possibly multithreaded) process. This flag is mutually e...
Definition: hwloc.h:1392
Operating system dma engine device. For instance the "dma0chan0" DMA channel on Linux.
Definition: hwloc.h:310
unsigned char get_thisthread_last_cpu_location
Definition: hwloc.h:1933
unsigned char set_thread_cpubind
Definition: hwloc.h:1925
Level 4 Data (or Unified) Cache.
Definition: hwloc.h:210
unsigned char get_proc_cpubind
Definition: hwloc.h:1919
int hwloc_get_memory_parents_depth(hwloc_topology_t topology)
Return the depth of parents where memory objects are attached.
int hwloc_topology_set_cache_types_filter(hwloc_topology_t topology, enum hwloc_type_filter_e filter)
Set the filtering for all cache object types.
int hwloc_set_proc_membind(hwloc_topology_t topology, hwloc_pid_t pid, hwloc_const_bitmap_t set, hwloc_membind_policy_t policy, int flags)
Set the default memory binding policy of the specified process to prefer the NUMA node(s) specified b...
void hwloc_topology_check(hwloc_topology_t topology)
Run internal checks on a topology structure.
unsigned hwloc_get_api_version(void)
Indicate at runtime which hwloc API version was used at build time.
hwloc_const_bitmap_t hwloc_const_cpuset_t
A non-modifiable hwloc_cpuset_t.
Definition: hwloc.h:141
int hwloc_get_type_depth(hwloc_topology_t topology, hwloc_obj_type_t type)
Returns the depth of objects of type type.
Group-specific Object Attributes.
Definition: hwloc.h:578
unsigned arity
Number of normal children. Memory, Misc and I/O children are not listed here but rather in their dedi...
Definition: hwloc.h:413
Data cache.
Definition: hwloc.h:288
unsigned char bind_membind
Definition: hwloc.h:1963
Get the set of allowed resources from the local operating system even if the topology was loaded from...
Definition: hwloc.h:1865
Level 1 instruction Cache (filtered out by default).
Definition: hwloc.h:213
struct hwloc_obj_attr_u::hwloc_bridge_attr_s bridge
NUMA node-specific Object Attributes.
Definition: hwloc.h:554
unsigned infos_count
Size of infos array.
Definition: hwloc.h:532
int hwloc_get_last_cpu_location(hwloc_topology_t topology, hwloc_cpuset_t set, int flags)
Get the last physical CPU where the current process or thread ran.
unsigned char set_area_membind
Definition: hwloc.h:1955
Allocate memory on the given nodes in an interleaved / round-robin manner. The precise layout of the ...
Definition: hwloc.h:1356
Detect the whole system, ignore reservations.
Definition: hwloc.h:1824
unsigned logical_index
Horizontal index in the whole list of similar objects, hence guaranteed unique across the entire mach...
Definition: hwloc.h:395
static void * hwloc_alloc_membind_policy(hwloc_topology_t topology, size_t len, hwloc_const_bitmap_t set, hwloc_membind_policy_t policy, int flags)
Allocate some memory on NUMA memory nodes specified by set.
void * hwloc_alloc_membind(hwloc_topology_t topology, size_t len, hwloc_const_bitmap_t set, hwloc_membind_policy_t policy, int flags)
Allocate some memory on NUMA memory nodes specified by set.
int hwloc_topology_get_type_filter(hwloc_topology_t topology, hwloc_obj_type_t type, enum hwloc_type_filter_e *filter)
Get the current filtering for the given object type.
enum hwloc_obj_bridge_type_e hwloc_obj_bridge_type_t
Type of one side (upstream or downstream) of an I/O bridge.
struct hwloc_topology_cpubind_support * cpubind
Definition: hwloc.h:1982
struct hwloc_obj * misc_first_child
First Misc child. Misc objects are listed here (misc_arity and misc_first_child) instead of in the no...
Definition: hwloc.h:460
int hwloc_type_sscanf_as_depth(const char *string, hwloc_obj_type_t *typep, hwloc_topology_t topology, int *depthp)
Return an object type and its level depth from a type string.
unsigned memory_arity
Number of Memory children. These children are listed in memory_first_child.
Definition: hwloc.h:433
int hwloc_obj_attr_snprintf(char *restrict string, size_t size, hwloc_obj_t obj, const char *restrict separator, int verbose)
Stringify the attributes of a given topology object into a human-readable form.
hwloc_uint64_t size
Size of cache in bytes.
Definition: hwloc.h:570
Operating system device (filtered out by default). They are not added to the topology unless I/O disc...
Definition: hwloc.h:263
float linkspeed
Definition: hwloc.h:592
unsigned char set_thisproc_membind
Definition: hwloc.h:1943
const char * hwloc_obj_type_string(hwloc_obj_type_t type)
Return a constant stringified object type.
struct hwloc_topology_membind_support * membind
Definition: hwloc.h:1983
unsigned sibling_rank
Index in parent's children[] array. Or the index in parent's Memory, I/O or Misc children list...
Definition: hwloc.h:408
int hwloc_get_membind(hwloc_topology_t topology, hwloc_bitmap_t set, hwloc_membind_policy_t *policy, int flags)
Query the default memory binding policy and physical locality of the current process or thread...
static int hwloc_get_nbobjs_by_type(hwloc_topology_t topology, hwloc_obj_type_t type)
Returns the width of level type type.
Virtual depth for NUMA nodes.
Definition: hwloc.h:769
Bridge specific Object Attribues.
Definition: hwloc.h:595
unsigned char set_proc_cpubind
Definition: hwloc.h:1917
unsigned char get_thisthread_cpubind
Definition: hwloc.h:1923
static const char * hwloc_obj_get_info_by_name(hwloc_obj_t obj, const char *name)
Search the given key name in object infos and return the corresponding value.
hwloc_obj_bridge_type_t upstream_type
Definition: hwloc.h:599
unsigned char set_thisthread_cpubind
Definition: hwloc.h:1921
Virtual depth for software device object level.
Definition: hwloc.h:772
unsigned char get_area_membind
Definition: hwloc.h:1957
Cache-specific Object Attributes.
Definition: hwloc.h:569
Operating system block device. For instance "sda" on Linux.
Definition: hwloc.h:300
unsigned char numa_memory
Detecting the amount of memory in NUMA nodes is supported.
Definition: hwloc.h:1903
hwloc_obj_t hwloc_topology_insert_group_object(hwloc_topology_t topology, hwloc_obj_t group)
Add more structure to the topology by adding an intermediate Group.
unsigned char nexttouch_membind
Definition: hwloc.h:1967
int hwloc_free(hwloc_topology_t topology, void *addr, size_t len)
Free memory that was previously allocated by hwloc_alloc() or hwloc_alloc_membind().
Request for strict binding from the OS.
Definition: hwloc.h:1130
Object type-specific Attributes.
Definition: hwloc.h:552
hwloc_obj_osdev_type_t type
Definition: hwloc.h:611
hwloc_obj_cache_type_t type
Cache type.
Definition: hwloc.h:575
int hwloc_get_proc_membind(hwloc_topology_t topology, hwloc_pid_t pid, hwloc_bitmap_t set, hwloc_membind_policy_t *policy, int flags)
Query the default memory binding policy and physical locality of the specified process.
Returned by get_membind() functions when multiple threads or parts of a memory area have differing me...
Definition: hwloc.h:1371
unsigned linesize
Cache-line size in bytes. 0 if unknown.
Definition: hwloc.h:572
hwloc_obj_osdev_type_e
Type of a OS device.
Definition: hwloc.h:299
static int hwloc_get_type_or_above_depth(hwloc_topology_t topology, hwloc_obj_type_t type)
Returns the depth of objects of type type or above.
static int hwloc_get_type_or_below_depth(hwloc_topology_t topology, hwloc_obj_type_t type)
Returns the depth of objects of type type or below.
Flags describing actual memory binding support for this topology.
Definition: hwloc.h:1941
static hwloc_obj_t hwloc_get_root_obj(hwloc_topology_t topology)
Returns the top-object of the topology-tree.
PCI-side of a bridge.
Definition: hwloc.h:295
unsigned char get_thisproc_last_cpu_location
Definition: hwloc.h:1929
Operating system GPU device. For instance ":0.0" for a GL display, "card0" for a Linux DRM device...
Definition: hwloc.h:302
No object of given type exists in the topology.
Definition: hwloc.h:767
Object info.
Definition: hwloc.h:619
Level 2 Data (or Unified) Cache.
Definition: hwloc.h:208
struct hwloc_obj_attr_u::hwloc_cache_attr_s cache
Level 3 Data (or Unified) Cache.
Definition: hwloc.h:209
unsigned char func
Definition: hwloc.h:588
unsigned short subvendor_id
Definition: hwloc.h:590
Miscellaneous objects (filtered out by default). Objects without particular meaning, that can e.g. be added by the application for its own use, or by hwloc for miscellaneous objects such as MemoryModule (DIMMs). These objects are not listed in the main children list, but rather in the dedicated misc children list. Misc objects may only have Misc objects as children, and those are in the dedicated misc children list as well. Misc objects have NULL CPU and node sets.
Definition: hwloc.h:271
union hwloc_obj_attr_u * attr
Object type-specific Attributes, may be NULL if no attribute value was found.
Definition: hwloc.h:376
unsigned depth
Depth of group object. It may change if intermediate Group objects are added.
Definition: hwloc.h:579
hwloc_obj_type_t
Definition: hwloc.h:176
union hwloc_obj_attr_u::hwloc_bridge_attr_s::@1 downstream
PCI Device specific Object Attributes.
Definition: hwloc.h:586
unsigned char pu
Detecting the number of PU objects is supported.
Definition: hwloc.h:1899
char * value
Info value.
Definition: hwloc.h:621
Host-side of a bridge, only possible upstream.
Definition: hwloc.h:294
Level 1 Data (or Unified) Cache.
Definition: hwloc.h:207
static hwloc_obj_t hwloc_get_next_obj_by_type(hwloc_topology_t topology, hwloc_obj_type_t type, hwloc_obj_t prev)
Returns the next object of type type.
unsigned hwloc_get_nbobjs_by_depth(hwloc_topology_t topology, int depth)
Returns the width of level at depth depth.
struct hwloc_obj_attr_u::hwloc_osdev_attr_s osdev
Processing Unit, or (Logical) Processor. An execution unit (may share a core with some other logical ...
Definition: hwloc.h:195
Move Misc objects to ancestors if their parents are removed during restriction. If this flag is not s...
Definition: hwloc.h:2117
struct hwloc_bitmap_s * hwloc_bitmap_t
Set of bits represented as an opaque pointer to an internal bitmap.
Definition: bitmap.h:67
int hwloc_topology_set_xmlbuffer(hwloc_topology_t restrict topology, const char *restrict buffer, int size)
Enable XML based topology using a memory buffer (instead of a file, as with hwloc_topology_set_xml())...
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:139
unsigned char secondary_bus
Definition: hwloc.h:603
unsigned short class_id
Definition: hwloc.h:589
Virtual depth for PCI device object level.
Definition: hwloc.h:771
unsigned char set_thisthread_membind
Definition: hwloc.h:1951
struct hwloc_topology_discovery_support * discovery
Definition: hwloc.h:1981
unsigned char dont_merge
Flag preventing groups from being automatically merged with identical parent or children.
Definition: hwloc.h:583
Core. A computation unit (may be shared by several logical processors).
Definition: hwloc.h:191
Assume that the selected backend provides the topology for the system on which we are running...
Definition: hwloc.h:1844
hwloc_obj_cache_type_e
Cache type.
Definition: hwloc.h:286
struct hwloc_pcidev_attr_s pci
Definition: hwloc.h:597
hwloc_obj_t hwloc_topology_insert_misc_object(hwloc_topology_t topology, hwloc_obj_t parent, const char *name)
Add a MISC object as a leaf of the topology.
hwloc_bitmap_t hwloc_nodeset_t
A node set is a bitmap whose bits are set according to NUMA memory node physical OS indexes...
Definition: hwloc.h:156
int associativity
Ways of associativity, -1 if fully associative, 0 if unknown.
Definition: hwloc.h:573
Machine. A set of processors and memory with cache coherency.
Definition: hwloc.h:177
Flags describing actual PU binding support for this topology.
Definition: hwloc.h:1911
int hwloc_get_area_membind(hwloc_topology_t topology, const void *addr, size_t len, hwloc_bitmap_t set, hwloc_membind_policy_t *policy, int flags)
Query the CPUs near the physical NUMA node(s) and binding policy of the memory identified by (addr...
struct hwloc_obj * next_sibling
Next object below the same parent (inside the same list of children).
Definition: hwloc.h:409
hwloc_nodeset_t complete_nodeset
The complete NUMA node set of this object,.
Definition: hwloc.h:515
OS Device specific Object Attributes.
Definition: hwloc.h:610
unsigned char get_proc_membind
Definition: hwloc.h:1949
const struct hwloc_bitmap_s * hwloc_const_bitmap_t
a non-modifiable hwloc_bitmap_t
Definition: bitmap.h:69
unsigned char get_thisproc_membind
Definition: hwloc.h:1945
struct hwloc_obj * first_child
First normal child.
Definition: hwloc.h:418
struct hwloc_obj ** children
Normal children, children[0 .. arity -1].
Definition: hwloc.h:417
PCI device (filtered out by default). They are not added to the topology unless I/O discovery is enab...
Definition: hwloc.h:256
void hwloc_topology_set_userdata(hwloc_topology_t topology, const void *userdata)
Set the topology-specific userdata pointer.
hwloc_uint64_t total_memory
Total memory (in bytes) in NUMA nodes below this object.
Definition: hwloc.h:374