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Eugene B. Postnikov (postnikov)
New member
Username: postnikov

Post Number: 1
Registered: 06-2004
Posted on Monday, June 28, 2004 - 10:29 am:   

Hello,
I've runed the simplest programm for calculation of the running wave and have got an error in the v. 4.0.6f .
But there is all OK in the ver 3.10.
The text of error message is the following:
Empty Diagonal Element
An internal rocessing error has occured
- Called from coupling: jmatrix
- Called from coupling: space_matrix
- Called from coupling: tr_matrix
- Called from timsolve: onestep
- Called from timsolve: startup

Thank you in advance,
Eugene B. Postnikov
application/octet-stream
wave.pde (0.4 k)
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Robert G. Nelson (rgnelson)
Moderator
Username: rgnelson

Post Number: 168
Registered: 06-2003
Posted on Monday, June 28, 2004 - 02:49 pm:   

There is a diagnostic in the treatment of periodic boundary conditions in version 4.0.6 that tries to report illegal conditions in the coupling matrix (zero diagonal elements).

Unfortunately, this diagnostic is overzealous, and sometimes blocks periodic BCs in systems of more than one equation.

We have corrected this error in version 4.0.7, which will be released in a day or two.

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