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[FiPy](<a href="https://www.ctcms.nist.gov/fipy" class="">https://www.ctcms.nist.gov/fipy</a>) is a finite volume code that can use PETSc as one possible solver suite. See:


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<div class=""><a href="https://github.com/usnistgov/fipy/tree/master/fipy/solvers/petsc" class="">https://github.com/usnistgov/fipy/tree/master/fipy/solvers/petsc</a></div>


<div class=""><a href="https://github.com/usnistgov/fipy/blob/master/fipy/matrices/petscMatrix.py" class="">https://github.com/usnistgov/fipy/blob/master/fipy/matrices/petscMatrix.py</a><br class="">


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<div class="">Caveat: It’s not intended as an instructional example, if that’s what you’re looking for.<br class="">


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<div class="">On Feb 22, 2021, at 2:59 PM, Lisandro Verga <lisandro.verga.bega@gmail.com> wrote:</div>


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<div class="">Dear PETSc Team,


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<div class="">I would like to ask you if there a finite volume solver build using the PETSc data structure. I have found several manuscripts or presentations that mention that but I cannot retrieve an example it.</div>


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<div class="">Thank you.</div>


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<div class="">Regards,</div>


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