Predefined Concurrency Limits¶
[flow_graph.concurrency_limits]
Predefined constants that can be used as function_node, multifunction_node, and async_node
constructors arguments to define concurrency limit.
// Defined in header <oneapi/tbb/flow_graph.h>
namespace oneapi {
namespace tbb {
namespace flow {
std::size_t unlimited = /*implementation-defined*/;
std::size_t serial = /*implementation-defined*/;
} // namespace flow
} // namespace tbb
} // namespace oneapi
unlimited concurrency allows an unlimited number of invocations of the body to execute concurrently.
serial concurrency allows only a single call of body to execute concurrently.