<HTML dir=ltr><HEAD>
<META http-equiv=Content-Type content="text/html; charset=unicode">
<META content="MSHTML 6.00.6000.16608" name=GENERATOR></HEAD>
<BODY>
<DIV><FONT face=Arial color=#000000 size=2>Dear all,</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>I'm sorry but it's not very clear for me how PUGH actually implement periodic boundary conditions. For example, I want to specify driver::periodic_x = "yes" and driver::global_nx = 65, driver::ghost_size = 1, then during partition will the driver automatically augment 2 appropriate ghost cells and my physical domain is still [0, 64] or it will use points 0 and 64 as ghost cells and my physical domain is only [1,63] ? I believe the latter is used in reflection symmetry but I'm not sure about the periodic boundary condition.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Thank you.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Best regards,</FONT></DIV>
<DIV><FONT face=Arial size=2>Tri</FONT></DIV></BODY></HTML>