Implemented Function pointer for SOR, RB and RBA variants

BasicSolver/3D-mpi-io/src/solver.h

@@ -20,7 +20,7 @@ typedef struct {
     double *f, *g, *h;
     double *u, *v, *w;
     /* parameters */
-    double eps, omega;
+    double eps, omega, rho;
     double re, tau, gamma;
     double gx, gy, gz;
     /* time stepping */
@@ -36,6 +36,8 @@ typedef struct {
 void initSolver(Solver*, Parameter*);
 void computeRHS(Solver*);
 void solve(Solver*);
+void solveRB(Solver*);
+void solveRBA(Solver*);
 void normalizePressure(Solver*);
 void computeTimestep(Solver*);
 void setBoundaryConditions(Solver*);