info Namespace¶
[info_namespace]
Interfaces to query information about execution environment.
// Declared in header <oneapi/tbb/info.h>
namespace oneapi {
namespace tbb {
using numa_node_id = /*implementation-defined*/;
namespace info {
std::vector<numa_node_id> numa_nodes();
int default_concurrency(numa_node_id id = oneapi::tbb::task_arena::automatic);
}
} // namespace tbb
} // namespace oneapi
Types¶
numa_node_id - Represents NUMA node identifier.
Functions¶
-
std::vector<numa_node_id> numa_nodes()¶
Returns the vector of integral indexes that indicate available NUMA nodes.
Note
If error occurs during system topology parsing, returns vector containing single element that equals to
task_arena::automatic.
-
int default_concurrency(numa_node_id id = oneapi::tbb::task_arena::automatic)¶
Returns concurrency level of the given NUMA node. If argument is not specified, returns default concurrency level for current library configuration.