350   KSP                  ksp;  in main()  local
688   PetscCall(KSPCreate(comm, &ksp));  in main()
691     PetscCall(KSPGetPC(ksp, &pc));  in main()
698     PetscCall(KSPSetType(ksp, KSPCG));  in main()
699     PetscCall(KSPSetNormType(ksp, KSP_NORM_NATURAL));  in main()
700     PetscCall(KSPSetTolerances(ksp, 1e-10, PETSC_DEFAULT, PETSC_DEFAULT, PETSC_DEFAULT));  in main()
702   PetscCall(KSPSetOperators(ksp, mat, mat));  in main()
704   PetscCall(KSPSetTolerances(ksp, 1e-10, PETSC_DEFAULT, PETSC_DEFAULT, 1));  in main()
706   PetscCall(KSPSolve(ksp, rhs, X));  in main()
711     PetscCall(KSPSetTolerances(ksp, 1e-10, PETSC_DEFAULT, PETSC_DEFAULT, ksp_max_it_clip[0]));  in main()
713     PetscCall(KSPSetTolerances(ksp, 1e-10, PETSC_DEFAULT, PETSC_DEFAULT, ksp_max_it_clip[1]));  in main()
715   PetscCall(KSPSetFromOptions(ksp));  in main()
719   PetscCall(PetscBarrier((PetscObject)ksp));  in main()
727   PetscCall(KSPSolve(ksp, rhs, X));  in main()
739     PetscCall(KSPGetType(ksp, &ksp_type));  in main()
740     PetscCall(KSPGetConvergedReason(ksp, &reason));  in main()
741     PetscCall(KSPGetIterationNumber(ksp, &its));  in main()
742     PetscCall(KSPGetResidualNorm(ksp, &rnorm));  in main()
793   PetscCall(KSPDestroy(&ksp));  in main()