From: Wolfgang Bangerth <bangerth@colostate.edu>
Date: Sat, 10 Mar 2018 05:47:10 +0000 (-0700)
Subject: Run the computation of projections from children in parallel.
X-Git-Tag: v9.0.0-rc1~324^2
X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e9999835f1f14b31a6e39a553787a7c2b2671ddd;p=dealii.git

Run the computation of projections from children in parallel.
---

diff --git a/include/deal.II/fe/fe_tools.templates.h b/include/deal.II/fe/fe_tools.templates.h
index a931c07b46..cb433bea45 100644
--- a/include/deal.II/fe/fe_tools.templates.h
+++ b/include/deal.II/fe/fe_tools.templates.h
@@ -2254,13 +2254,14 @@ namespace FETools
 
 
     // finally loop over all possible refinement cases
+    Threads::TaskGroup<> tasks;
     unsigned int ref_case = (isotropic_only)
                             ? RefinementCase<dim>::isotropic_refinement
                             : RefinementCase<dim>::cut_x;
     for (; ref_case <= RefinementCase<dim>::isotropic_refinement; ++ref_case)
-      {
-        compute_one_case (ref_case, mass, matrices[ref_case-1]);
-      }
+      tasks += Threads::new_task ([ &,ref_case]() { compute_one_case(ref_case, mass, matrices[ref_case-1]); });
+
+    tasks.join_all();
   }