Hi all, First of all, is cell thread different from face thread? If I know boundary face thread (say tf) and face (f), can we use this data to get a cell (which has face f as one of it's face) and it's data at cell center using any macro? Thanks & regards, Vishal

use the following macro to return the cell threads on a boundary cell. t0 = THREAD_T0(tf); c0 = F_C0(f,tf);

c0 and t0 are the cell and cell thread

Thank you Aidan! One more question, does the thread t0 represent all cells having one face as the boundary or does it represent only for one particular cell having one face as a boundary? Thanks & Regards, Vishal