[petsc-users] MSVC debug runs in a different branch.

[Jed Brown]

On Mon, Jun 20, 2011 at 23:40, Tian(ICT) <rongtian at ncic.ac.cn> wrote:

> Using MSVC with Petsc, when debuging the code, the FormJacobian was never
> called, instead calling "MatMFFDComputeJacobian(SNES snes,Vec x,Mat *jac,Mat
> *B,MatStructure *flag,void *dummy)", though I donot use matrix free option.


Is there something in the environment, in a ".petscrc" in the directory MSVC
is running it in, or in an extra command-line parameter that MSVC is
implicitly passing?

If you can you use a command-line debugger like gdb, then you can set a
breakpoint in SNESSetJacobian() and see where it's getting changed from.
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