text: // Copyright 2020 Hannah Rittich
  //
  // Licensed under the Apache License, Version 2.0 (the "License");
  // you may not use this file except in compliance with the License.
  // You may obtain a copy of the License at
  //
  //     http://www.apache.org/licenses/LICENSE-2.0
  //
  // Unless required by applicable law or agreed to in writing, software
  // distributed under the License is distributed on an "AS IS" BASIS,
  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  // See the License for the specific language governing permissions and
  // limitations under the License.
  
  #include "init.hpp"
  
  #include <allium/config.hpp>
  #include <allium/la/petsc_util.hpp>
  
  namespace allium {
    #ifdef ALLIUM_USE_PETSC
    using petsc::chkerr;
    #endif
  
    Init::Init(int& argc, char** &argv)
      : mpi(argc, argv)
    {
      #ifdef ALLIUM_USE_PETSC
        PetscErrorCode ierr;
        ierr = PetscInitialize(&argc, &argv, nullptr, nullptr); chkerr(ierr);
      #endif
    }
  
    Init::~Init() {
      #ifdef ALLIUM_USE_PETSC
        PetscErrorCode ierr;
        ierr = PetscFinalize(); chkerr(ierr);
      #endif
    }
  }
  
  