are also explained.</p>
<p>Start from the
-code <a href="../../../src/possion_2d/poisson_2d.c">poisson_2d.c</a> and
+code <a href="../../../src/poisson_2d/poisson_2d.c">poisson_2d.c</a> and
implement the parallel version. Pay particular attention to minimize
communications.</p>