Hi, Good morning/evening! I have this issue for quite a while. 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.
However, when runing the same thing in command line (still a debug compilation), I can see FormJacobian was called correctly. Any hint? Rong
