DAMultiplyByJacobian1WithAdifor

Applies a ADIFOR provided Jacobian function on each processor that share a DA to a vector

#include "petscda.h"   
int DAMultiplyByJacobian1WithAdifor(DA da,Vec u,Vec v,Vec f,void *w)

	da	- the DA that defines the grid
	vu	- Jacobian is computed at this point (ghosted)
	v	- product is done on this vector (ghosted)
	fu	- output vector = J(vu)*v (not ghosted)
	w	- any user data

Notes: Does NOT do ghost updates on vu and v upon entry