fix ilu issues

apps/2021-tokamak/Tokamak.prm

@@ -6,8 +6,8 @@ Parameters
 
     elementType p1;
 
-    minLevel 0;
-    maxLevel 2;
+    minLevel 3;
+    maxLevel 3;
 
     // ##########
     // # domain #
@@ -59,13 +59,13 @@ Parameters
 
     solverType                gmg_wjac;
     coarseGridSolverType      cg_ginkgo;
-    cgHytegVerbose            false;
+    cgHytegVerbose            true;
     preSmooth                 3;
     postSmooth                3;
     relativeResidualReduction 1e-06;
     maxCoarseGridSolverIterations 1000000000;
-    gkoExecutor               reference;
-    useAgglomeration          true;
+    gkoExecutor               cuda;
+    useAgglomeration          false;
 
     // ################
     // # app settings #

src/hyteg/ginkgo/GinkgoCGSolver.hpp

@@ -404,10 +404,13 @@ class GinkgoCGSolver : public Solver< OperatorType >
             solver_ = solver_factory_->generate( matrix_ );
             if ( matrix_->get_size()[0] > 0 && matrix_->get_size()[1] > 0 )
             {
-               //auto par_ilu = gko::factorization::Ilu< valueType, int32_t >::build().on( solver_exec_ )->generate( matrix_ );
-               auto ilu = gko::preconditioner::Ilu<>::build().on( solver_exec_ )->generate( matrix_ );
-               auto jac = gko::preconditioner::Jacobi<valueType, int32_t>::build().on(solver_exec_)->generate(matrix_);
-               solver_->set_preconditioner( gko::share( jac ) );
+               auto ilu = gko::preconditioner::Ilu<>::build()
+                              .with_factorization_factory(
+                                  gko::share( gko::factorization::Ilu< valueType, int32_t >::build().on( solver_exec_ ) ) )
+                              .on( solver_exec_ )
+                              ->generate( matrix_ );
+               auto jac = gko::preconditioner::Jacobi< valueType, int32_t >::build().on( solver_exec_ )->generate( matrix_ );
+               solver_->set_preconditioner( gko::share( ilu ) );
             }
             x.getStorage()->getTimingTree()->stop( "Ginkgo CG Solver Set-Up" );
          }