[petsc-users] TaoSetVariableBounds in petsc4py

[Justin Chang]

Hi all,

I am attempting to use TaoSetVariableBounds via petsc4py. Is there a way to
set only lower bounds or upper bounds and not both? In PETSc I could
replace one of the Vecs with NULL, but how would I do that with
tao.setVariableBounds(...)?

It seems right now I can only do tao.setVariableBounds(lb_vec,ub_vec), and
from inspection of the python source code, it seems I have to specify both?

Thanks,
Justin
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