Call the base class constructor with MPI_COMM_NULL instead

diff --git a/include/deal.II/lac/petsc_precondition.h b/include/deal.II/lac/petsc_precondition.h
index 010d2fc750b6b8ec939904159987ed6c9c32040a..53b708ba39464cd7296dbb4be6bcae5cd9d205a2 100644 (file)
--- a/include/deal.II/lac/petsc_precondition.h
+++ b/include/deal.II/lac/petsc_precondition.h
@@ -62,7 +62,15 @@ namespace PETScWrappers
     /**
      * Constructor.
      */
-    explicit PreconditionBase(const MPI_Comm &mpi_communicator = MPI_COMM_NULL);
+    explicit PreconditionBase(const MPI_Comm &mpi_communicator);
+
+    /**
+     * Constructor. This constructor is deprecated.
+     *
+     * @deprecated
+     */
+    DEAL_II_DEPRECATED
+    PreconditionBase();
 
     /**
      * Destructor.
@@ -162,7 +170,7 @@ namespace PETScWrappers
      * Empty Constructor. You need to call initialize() before using this
      * object.
      */
-    PreconditionJacobi() = default;
+    PreconditionJacobi();
 
     /**
      * Constructor. Take the matrix which is used to form the preconditioner,
@@ -244,7 +252,7 @@ namespace PETScWrappers
      * Empty Constructor. You need to call initialize() before using this
      * object.
      */
-    PreconditionBlockJacobi() = default;
+    PreconditionBlockJacobi();
 
     /**
      * Constructor. Take the matrix which is used to form the preconditioner,
@@ -322,7 +330,7 @@ namespace PETScWrappers
      * Empty Constructor. You need to call initialize() before using this
      * object.
      */
-    PreconditionSOR() = default;
+    PreconditionSOR();
 
     /**
      * Constructor. Take the matrix which is used to form the preconditioner,
@@ -382,7 +390,7 @@ namespace PETScWrappers
      * Empty Constructor. You need to call initialize() before using this
      * object.
      */
-    PreconditionSSOR() = default;
+    PreconditionSSOR();
 
     /**
      * Constructor. Take the matrix which is used to form the preconditioner,
@@ -440,7 +448,7 @@ namespace PETScWrappers
      * Empty Constructor. You need to call initialize() before using this
      * object.
      */
-    PreconditionICC() = default;
+    PreconditionICC();
 
     /**
      * Constructor. Take the matrix which is used to form the preconditioner,
@@ -500,7 +508,7 @@ namespace PETScWrappers
      * Empty Constructor. You need to call initialize() before using this
      * object.
      */
-    PreconditionILU() = default;
+    PreconditionILU();
 
     /**
      * Constructor. Take the matrix which is used to form the preconditioner,
@@ -582,7 +590,7 @@ namespace PETScWrappers
      * Empty Constructor. You need to call initialize() before using this
      * object.
      */
-    PreconditionLU() = default;
+    PreconditionLU();
 
     /**
      * Constructor. Take the matrix which is used to form the preconditioner,
@@ -751,7 +759,7 @@ namespace PETScWrappers
      * Empty Constructor. You need to call initialize() before using this
      * object.
      */
-    PreconditionBoomerAMG() = default;
+    PreconditionBoomerAMG();
 
     /**
      * Constructor. Take the matrix which is used to form the preconditioner,
@@ -892,7 +900,7 @@ namespace PETScWrappers
      * Empty Constructor. You need to call initialize() before using this
      * object.
      */
-    PreconditionParaSails() = default;
+    PreconditionParaSails();
 
     /**
      * Constructor. Take the matrix which is used to form the preconditioner,
@@ -940,7 +948,7 @@ namespace PETScWrappers
      * Empty Constructor. You need to call initialize() before using this
      * object.
      */
-    PreconditionNone() = default;
+    PreconditionNone();
 
     /**
      * Constructor. Take the matrix which is used to form the preconditioner,
@@ -1041,7 +1049,7 @@ namespace PETScWrappers
      * Empty Constructor. You need to call initialize() before using this
      * object.
      */
-    PreconditionBDDC() = default;
+    PreconditionBDDC();
 
     /**
      * Constructor. Take the matrix which is used to form the preconditioner,

diff --git a/source/lac/petsc_precondition.cc b/source/lac/petsc_precondition.cc
index 6f145d31de4146550c6c4a1ad22256a017dc6754..f79e7ac1db7c1801c6ef736ee16acf4ff1aa0099 100644 (file)
--- a/source/lac/petsc_precondition.cc
+++ b/source/lac/petsc_precondition.cc
@@ -41,6 +41,12 @@ namespace PETScWrappers
 
 
 
+  PreconditionBase::PreconditionBase()
+    : PreconditionBase(MPI_COMM_NULL)
+  {}
+
+
+
   PreconditionBase::~PreconditionBase()
   {
     try
@@ -133,6 +139,13 @@ namespace PETScWrappers
 
 
   /* ----------------- PreconditionJacobi -------------------- */
+
+  PreconditionJacobi::PreconditionJacobi()
+    : PreconditionBase(MPI_COMM_NULL)
+  {}
+
+
+
   PreconditionJacobi::PreconditionJacobi(const MPI_Comm &      comm,
                                          const AdditionalData &additional_data_)
     : PreconditionBase(comm)
@@ -191,6 +204,9 @@ namespace PETScWrappers
 
   /* ----------------- PreconditionBlockJacobi -------------------- */
 
+  PreconditionBlockJacobi::PreconditionBlockJacobi()
+    : PreconditionBase(MPI_COMM_NULL)
+  {}
 
   PreconditionBlockJacobi::PreconditionBlockJacobi(
     const MPI_Comm &      comm,
@@ -250,6 +266,12 @@ namespace PETScWrappers
 
   /* ----------------- PreconditionSOR -------------------- */
 
+  PreconditionSOR::PreconditionSOR()
+    : PreconditionBase(MPI_COMM_NULL)
+  {}
+
+
+
   PreconditionSOR::AdditionalData::AdditionalData(const double omega)
     : omega(omega)
   {}
@@ -294,6 +316,12 @@ namespace PETScWrappers
 
   /* ----------------- PreconditionSSOR -------------------- */
 
+  PreconditionSSOR::PreconditionSSOR()
+    : PreconditionBase(MPI_COMM_NULL)
+  {}
+
+
+
   PreconditionSSOR::AdditionalData::AdditionalData(const double omega)
     : omega(omega)
   {}
@@ -342,6 +370,11 @@ namespace PETScWrappers
 
   /* ----------------- PreconditionICC -------------------- */
 
+  PreconditionICC::PreconditionICC()
+    : PreconditionBase(MPI_COMM_NULL)
+  {}
+
+
 
   PreconditionICC::AdditionalData::AdditionalData(const unsigned int levels)
     : levels(levels)
@@ -387,6 +420,12 @@ namespace PETScWrappers
 
   /* ----------------- PreconditionILU -------------------- */
 
+  PreconditionILU::PreconditionILU()
+    : PreconditionBase(MPI_COMM_NULL)
+  {}
+
+
+
   PreconditionILU::AdditionalData::AdditionalData(const unsigned int levels)
     : levels(levels)
   {}
@@ -537,6 +576,14 @@ namespace PETScWrappers
   } // namespace
 #  endif
 
+
+
+  PreconditionBoomerAMG::PreconditionBoomerAMG()
+    : PreconditionBase(MPI_COMM_NULL)
+  {}
+
+
+
   PreconditionBoomerAMG::PreconditionBoomerAMG(
     const MPI_Comm &      comm,
     const AdditionalData &additional_data_)
@@ -724,6 +771,12 @@ namespace PETScWrappers
 
 
 
+  PreconditionParaSails::PreconditionParaSails()
+    : PreconditionBase(MPI_COMM_NULL)
+  {}
+
+
+
   PreconditionParaSails::PreconditionParaSails(
     const MatrixBase &    matrix,
     const AdditionalData &additional_data)
@@ -822,6 +875,12 @@ namespace PETScWrappers
 
   /* ----------------- PreconditionNone ------------------------- */
 
+  PreconditionNone::PreconditionNone()
+    : PreconditionBase(MPI_COMM_NULL)
+  {}
+
+
+
   PreconditionNone::PreconditionNone(const MatrixBase &    matrix,
                                      const AdditionalData &additional_data)
     : PreconditionBase(matrix.get_mpi_communicator())
@@ -866,6 +925,12 @@ namespace PETScWrappers
 
 
 
+  PreconditionLU::PreconditionLU()
+    : PreconditionBase(MPI_COMM_NULL)
+  {}
+
+
+
   PreconditionLU::PreconditionLU(const MatrixBase &    matrix,
                                  const AdditionalData &additional_data)
     : PreconditionBase(matrix.get_mpi_communicator())
@@ -925,6 +990,13 @@ namespace PETScWrappers
 
 
 
+  template <int dim>
+  PreconditionBDDC<dim>::PreconditionBDDC()
+    : PreconditionBase(MPI_COMM_NULL)
+  {}
+
+
+
   template <int dim>
   PreconditionBDDC<dim>::PreconditionBDDC(
     const MPI_Comm        comm,