3.2 Optional third party libraries

We provide interfaces to the following third-party software libraries; note that these are optional, but if you enable them some defaults for multilevel preconditioners may change to reflect their presence.

UMFPACK

[14] A sparse LU factorization package included in the SuiteSparse library, available from faculty.cse.tamu.edu/davis/suitesparse.html; it provides sequential factorization and triangular system solution for double precision real and complex data. We tested version 4.5.4 of SuiteSparse. Note that for configuring SuiteSparse you should provide the right path to the BLAS and LAPACK libraries in the SuiteSparse_config/SuiteSparse_config.mk file.

MUMPS

[1] A sparse LU factorization package available from mumps.enseeiht.fr; it provides sequential and parallel factorizations and triangular system solution for single and double precision, real and complex data. We tested versions 4.10.0 and 5.0.1.

SuperLU

[15] A sparse LU factorization package available from crd.lbl.gov/~xiaoye/SuperLU/; it provides sequential factorization and triangular system solution for single and double precision, real and complex data. We tested versions 4.3 and 5.0. If you installed BLAS from ATLAS, remember to define the BLASLIB variable in the make.inc file.

SuperLU_Dist

[24] A sparse LU factorization package available from the same site as SuperLU; it provides parallel factorization and triangular system solution for double precision real and complex data. We tested versions 3.3 and 4.2. If you installed BLAS from ATLAS, remember to define the BLASLIB variable in the make.inc file and to add the -std=c99 option to the C compiler options. Note that this library requires the ParMETIS library for parallel graph partitioning and fill-reducing matrix ordering, available from glaros.dtc.umn.edu/gkhome/metis/parmetis/overview.