On Wed, 14 Apr 2010 21:25:58 +0800 (CST), ??? <chenleping at yahoo.cn> wrote: > petsc teams, > > When I used the snes,as follows, > > call SNESSetFunction(snes,r,FormFunction,PETSC_NULL_OBJECT,ierr) > ? > subroutine FormFunction(snes,x,r,dummy,ierr)
The fourth argument is for all of this data. Here is an F90 example. http://www.mcs.anl.gov/petsc/petsc-as/snapshots/petsc-current/src/snes/examples/tutorials/ex5f90.F.html Jed
