<html><head><style type='text/css'>p { margin: 0; }</style></head><body><div style='font-family: Times New Roman; font-size: 12pt; color: #000000'>Hi,<br><div style="font-family: Times New Roman; font-size: 12pt; color: rgb(0, 0, 0);"><br>I am getting a 'Periodic Mismatch 1' error: <br><br>abort: PERIODIC MISMATCH 1:<br><br> 1 3 P ie <br> 1 6 E je <br> 6 1 E ke <br><br>I grep'd to the error in genmap.f and from what I can tell this bit of code is checking to ensure that the elements and faces I have said are periodic, match up with the other corresponding elements and faces. From the error, it seems to think that face 3 of element 1 is Periodic, and then returns this error because of course it is not.<br><br>I have attached the rea. I am not sure what the issue is here, and why it is not recognizing face 1 as periodic (as you will see in the rea, Elem 1 face 1 is periodic with elem 6 face 3). This error occurs at the first element. <span style="font-style: italic;">The values in the error message all seem to come from the periodic condition I have specified, but it is almost as if they are not in the correct order in the rea.</span><br><br>From my understanding: " P 1 1.00 6.00000 3.00000 0.00000 0.00000 0.00000 " states that element 1 face 1 is periodic with element 6 face 3. <br><br>Thanks for any help with this, <br>Michael M.<br><br></div></div></body></html>