UMFPACK is a set of routines for solving unsymmetric sparse linear
systems, Ax=b, using the Unsymmetric MultiFrontal method.
This package is part of SuiteSparse.
This requires a BLAS implementation. Choose one of these package sets:
* OpenBLAS
* atlas
* blas (the Netlib reference implementation)
If more than one set is installed (assuming there are no packaging conflicts)
then the auto-detection will use the first implementation from this list that
it finds. If in doubt, choose the Netlib reference implementations; other
packages that require a BLAS or LAPACK implementation may not build if they
are not configured to detect/use alternate implementations.
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