[petsc-users] petsc4py and PCMGGetSmoother

[Klaij, Christiaan]

I'm attempting some rapid prototyping with petsc4py. The idea is basically to read-in a matrix and rhs, setup GAMG as ksppreonly, get the smoother and overrule it with a python function of my own, similar to the demo where the Jacobi method is user-defined in python. So far I have something like this:

pc = PETSc.PC().create()
pc.setOperators(A)
pc.setType(PETSc.PC.Type.GAMG)
pc.PCMGGetSmoother(l=0,ksp=smoother)

which triggers the following error:

AttributeError: 'petsc4py.PETSc.PC' object has no attribute 'PCMGGetSmoother'

1) Am I doing something wrong, or is this function just not available through python? 

2) How can I tell up front if a function is available, only if it is listed in libpetsc4py.pyx? 

3) Given the function description in C from the manual pages, how can I deduce the python syntax?
    (perhaps it's supposed to be ksp = pc.PCMGGetSmoother(l=0), or something else entirely)

Thanks for your help,
dr. ir. Christiaan Klaij
 | Senior Researcher | Research & Development
T +31 317 49 33 44 |  C.Klaij at marin.nl | https://urldefense.us/v3/__http://www.marin.nl__;!!G_uCfscf7eWS!fuGSX2r2dc6Uj05gGWmXIUBhKmH4GUWf4FdVk1fonAxLxhy9cN2iLnXPgauopyAAtW08jyABFGurfeZ-5GDS9n8$ 
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