Dear PETSc Users,
I use the MUMPS wrapper in PETSc (loaded from dealii). I know that MUMPS computes a factorization based on the mulrifrontal method and since I have a very memory-strapped problem, I would like to run some test on the memory requirements for the factorizations across some sets of parameters in my underlying FEM-problem. My question is if there is a native way to check memory (as a measure of fill-in) for the MUMPS factorization in PETSc. I would prefer not to go through the operating system since that feels somewhat inconclusive to me. Does PETSc provide such functionality in any way? I would prefer to know the memory consumption for storing the factorization if that is possible, I would also take the total memory consumption of the direct solver if there is no other way, and, if nothing else is possible, I guess I would have to go with the memory requirement of the whole application if all else fails. Is anyone aware of something I can do? Kind regards, Pascal -------------------------------------------------------------------------- Karlsruhe Institute of Technology (KIT) Institute for Applied and Numerical Mathematics Kraft, Pascal Research scientist Englerstraße 2 Gebäude 20.30 76130, Germany Phone: +49 721 608-42801 Mobile: +49 163 6927612 E-mail: pascal.kraft∂kit.edu Web: www.math.kit.edu/ianm2/~kraft/de<http://www.math.kit.edu/ianm2/~kraft/de> KIT – The Research University in the Helmholtz Association Since 2010, the KIT has been certified as a family-friendly university.
