OpenMP-Examples/tasking/task_priority.tex

%\pagebreak
\section{Task Priority}
\label{sec:task_priority}
\index{task construct@\kcode{task} construct!priority clause@\kcode{priority} clause}
\index{priority clause@\kcode{priority} clause}
\index{clauses!priority@\kcode{priority}}


%\subsection{Task Priority}
%\label{subsec:task_priority}

In this example we compute arrays in a matrix through a \ucode{compute_array} routine.
Each task has a priority value equal to the value of the loop variable \ucode{i} at the
moment of its creation. A higher priority on a task means that a task is a candidate
to run sooner.

The creation of tasks occurs in ascending order (according to the iteration space of
the loop) but a hint, by means of the \kcode{priority} clause, is provided to reverse
the execution order.

\cexample[4.5]{task_priority}{1}

\ffreeexample[4.5]{task_priority}{1}