User-difined PC

[Michel Cancelliere]

Hello,

I have problems with the implementation of a user-defined pc, basically my
program is in a cycle, for with which he is called by matlab each time it
seeks to solve a linear system, the problem is that in the first iteration
of the for-cycle  the preconditioner works very well, then fails to
convergence. It may be some parameters that I setting wrong?
I'am attaching my program code.

Thank you,

Michel
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.mcs.anl.gov/pipermail/petsc-users/attachments/20080922/28a612b4/attachment.htm>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: solv.c
Type: text/x-csrc
Size: 28643 bytes
Desc: not available
URL: <http://lists.mcs.anl.gov/pipermail/petsc-users/attachments/20080922/28a612b4/attachment.c>