[petsc-users] petsc init in class constructor

[Feng Xing]

Hello everyone, 

I would like to write a c++ class which solve a linear system with petsc (code 
as following). 
Petsc is used only in this class. So I call MPI_Init in main.cpp, but 
PetscInitialize and PetscFinalise are in constructor/destructor of class.
I am wondering if this way is safe? 

class solvepetsc{

        solvepetsc(int argc, char** argv){
                PetscInitialize(&argc, &argv, NULL, NULL);
        };

        ~solvepetsc(){
                PetscFinalize();
        };

        // ...
}

Thanks a lot and best regards,

Feng Xing 
Postdoc INRIA France