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On Thu, Dec 29, 2011 at 08:10, Fatcharm wolfshow at gmail.com wrote:
We can see that the SNES Function norm is extremely large. I think it
is because that the initial value for the unknown function H(X,T) is
quite small and there is some terms like (1/H)(dH/dX) or
(1/H^2)(dH/dX) in my
2011/12/28, petsc-users-request at mcs.anl.gov petsc-users-request at
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Dear all,
I am working with an example of petsc-3.2-p5/src/ts/examples/tutorials/ex15.c
I noticed that in ex15.c,
Jtype == 0 means that /* use user provided Jacobian evaluation routine */
Jtype == 1 is for /* slow finite difference J; */
and Jtype == 2 is /* Use coloring to compute finite
