572       PetscCall(VecMAXPY(X, s, w, rk->YdotRHS));  in TSEvaluateStep_RK()
580       PetscCall(VecMAXPY(X, s, w, rk->YdotRHS));  in TSEvaluateStep_RK()
584       PetscCall(VecMAXPY(X, s, w, rk->YdotRHS));  in TSEvaluateStep_RK()
643   Vec             *Y = rk->Y, *YdotRHS = rk->YdotRHS;  in TSRollBack_RK()  local
660   PetscCall(VecMAXPY(ts->vec_sol, s, w, YdotRHS));  in TSRollBack_RK()
782   Vec             *Y = rk->Y, *YdotRHS = rk->YdotRHS;  in TSStep_RK()  local
792   if (FSAL) PetscCall(VecCopy(YdotRHS[s - 1], YdotRHS[0]));  in TSStep_RK()
804       PetscCall(VecMAXPY(Y[i], i, w, YdotRHS));  in TSStep_RK()
810       PetscCall(TSComputeRHSFunction(ts, t + h * c[i], Y[i], YdotRHS[i]));  in TSStep_RK()
1077   PetscCall(VecMAXPY(X, s, b, rk->YdotRHS));  in TSInterpolate_RK()
1091   PetscCall(VecDestroyVecs(tab->s, &rk->YdotRHS));  in TSRKTableauReset()
1139   PetscCall(VecDuplicateVecs(ts->vec_sol, tab->s, &rk->YdotRHS));  in TSRKTableauSetUp()