[petsc-users] Recommended examples for using KSP and multigrid with DM

[TAY wee-beng]

Hi,

I was following example ex29 in the past to write the code to solve my 
Poisson eqn using DM. Now it seems that ex29 is no longer valid. Which 
example should I follow now?

Also, I am using KSPBCGS to solve my momentum eqn in the past. Do I need 
to change much if I'm now using DM? If so, what is a good example?

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Thank you

Yours sincerely,

TAY wee-beng