<html><body><div style="color:#000; background-color:#fff; font-family:times new roman, new york, times, serif;font-size:12pt"><div>Dear Prof. Blaha</div><div><br></div><div style="color: rgb(0, 0, 0); font-size: 16px; font-family: times new roman,new york,times,serif; background-color: transparent; font-style: normal;">As you mentioned in the UG, hybrid functionals are more expensive. the issue is that we are working on PC with one processor (8 core) which is not fast enough. When I ran it for a structure with 15 atoms after 2 weeks just one scf finished while calculation has been performed with k-parallel. what's your advise? do you think, if I do it in mpi run it will be faster? </div><div style="color: rgb(0, 0, 0); font-size: 16px; font-family: times new roman,new york,times,serif; background-color: transparent; font-style: normal;"><br></div><div style="color: rgb(0, 0, 0); font-size: 16px; font-family: times new roman,new
york,times,serif; background-color: transparent; font-style: normal;">Best Regards <br></div><div style="color: rgb(0, 0, 0); font-size: 16px; font-family: times new roman,new york,times,serif; background-color: transparent; font-style: normal;">Ali</div></div></body></html>