@endcode

An executor can be reused to execute multiple taskflows.

In most workloads, you may need only one executor to run multiple taskflows

where each taskflow represents a part of a parallel decomposition.

@section C2_ExecuteATaskflow Execute a Taskflow

11: A.precede(B, C);

12:

13: std::future<void> fu = executor.run(taskflow);

14: fu.wait(); // block until the execution completes

15:

16: executor.run(taskflow, [](){ std::cout << "end of one execution\n"; }).get();

17: executor.run_n(taskflow, 4);

@li Line 19 runs the taskflow four times and invokes a callback at the end of the forth execution

@li Line 20 keeps running the taskflow until the predicate returns true

Issuing multiple runs on the same taskflow will automatically @em synchronize

to a sequential chain of executions in the order of run calls.

@code{.cpp}

executor.run(taskflow); // execution 1