Hi Keke, Please email me off list and I can explain more of the details to you. Best, Paul ________________________________ From: Nek5000-users <[email protected]> on behalf of [email protected] <[email protected]> Sent: Thursday, May 31, 2018 9:33:35 AM To: shivang agarwal Subject: [Nek5000-users] studying materials to understand genmap code Hi Neks, I want to have a thorough understand of the genmap code, especially subroutine "periodic_vtx" and "rec_bisect". Do you know if there are some existing documents that can help me quickly understand those code? Thanks, Keke