# parallel_concurrency

query about the concurrency of the current execution context

## Calling Sequence

    C=parallel_concurrency()

## Description

parallel_concurrency() returns a non-zero value when called from a parallel execution context (such as parallel_run.

    function r=dummy_arg(n)
      r= parallel_concurrency();
      endfunction;
    parallel_concurrency() // returns 0
    // parallel_run requires a function taking at least one argument
    parallel_run(1:2,dummy_arg)// returns 2 non zero values