+<Sect3>
+<Title>Scheduling policy for parallel threads
+<IndexTerm><Primary>Scheduling—parallel</Primary></IndexTerm>
+<IndexTerm><Primary>Parallel scheduling</Primary></IndexTerm></Title>
+
+<Para>
+In GUM we use an unfair scheduler, which means that a thread continues to
+perform graph reduction until it blocks on a closure under evaluation, on a
+remote closure or until the thread finishes.
+</Para>
+
+</Sect3>
+