subramanya sadasiva <[email protected]> writes: > Hi, Is it possible to extend PETSC-SNES VI to handlie linear > inequality constraints. My problem has 4 variables . 2 of them have > bounds constraints, as well as a linear inequality. At present I've > implemented an augmented lagrangian method to handle the linear > inequality and I let SNES VI handle the bounds constraints. However, > the convergence of this method is very poor. I'd like to know if there > was an easy way to get SNES VI to handle the linear inequalities as > well. Thanks,
This would be a useful extension, though I think nonlinear inequality constraints may ultimately be necessary. We are integrating TAO as a module in PETSc, which will help with problem formulation. Does your problem have an "energy" or objective functional, or is it a general variational inequality?
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