#1053 Operator FromVertexMatching: keep the matrix pattern in storage.

Sources/OperatorInstances/NonConformInterpolator/FromVertexMatching.cpp

@@ -134,7 +134,10 @@ namespace HappyHeart
                                 }));
             
             
-            Wrappers::Petsc::MatrixPattern matrix_pattern(non_zero_pattern_per_line);
+            matrix_pattern_ = std::make_unique<Wrappers::Petsc::MatrixPattern>(non_zero_pattern_per_line);
+            
+            decltype(auto) matrix_pattern = GetMatrixPattern();
+            
             auto& interpolation_matrix = *interpolation_matrix_;
             
             const auto& mpi = source.GetFEltSpace().MpiHappyHeart();

Sources/OperatorInstances/NonConformInterpolator/FromVertexMatching.hpp

@@ -134,6 +134,14 @@ namespace HappyHeart
 
             //! Access to interpolation matrix.
             const GlobalMatrix& GetInterpolationMatrix() const noexcept;
+            
+            /*!
+             * \brief Pattern of the matrix.
+             *
+             * \note It is stored for the sake of tests; otherwise it could be dropped once the interpolation
+             * matrix is created/
+             */
+            const Wrappers::Petsc::MatrixPattern& GetMatrixPattern() const noexcept;
 
         private:
 
@@ -152,6 +160,14 @@ namespace HappyHeart
 
             //! Global matrix used for the interpolation.
             GlobalMatrix::unique_ptr interpolation_matrix_ = nullptr;
+            
+            /*!
+             * \brief Pattern of the matrix.
+             *
+             * \note It is stored for the sake of tests; otherwise it could be dropped once the interpolation
+             * matrix is created/
+             */
+            Wrappers::Petsc::MatrixPattern::const_unique_ptr matrix_pattern_ = nullptr;
 
         };
 

Sources/OperatorInstances/NonConformInterpolator/FromVertexMatching.hxx

@@ -38,6 +38,13 @@ namespace HappyHeart
             assert(!(!interpolation_matrix_));
             return *interpolation_matrix_;
         }
+        
+        
+        inline const Wrappers::Petsc::MatrixPattern& FromVertexMatching::GetMatrixPattern() const noexcept
+        {
+            assert(!(!matrix_pattern_));
+            return *matrix_pattern_;
+        }
 
 
     } // namespace NonConformInterpolatorNS

Sources/ThirdParty/Wrappers/Petsc/Matrix/MatrixPattern.hpp

@@ -118,8 +118,6 @@ namespace HappyHeart
                 //! jCSR part of the CSR pattern (see iCSR_ for more details).
                 std::vector<PetscInt> jCSR_;
             };
-
-            
             
             
         } // namespace Petsc