PETSc version 3.17.4
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# MATSOLVERSPQR

matrix type providing direct solvers (QR factorizations) for sequential matrices via the external package SPQR. Use ./configure --download-suitesparse to install PETSc to use CHOLMOD

Consult SPQR documentation for more information about the Common parameters which correspond to the options database keys below.

Note: SPQR is part of SuiteSparse http://faculty.cse.tamu.edu/davis/suitesparse.html

### See Also

PCQR, PCFactorSetMatSolverType(), MatSolverType

### Level

beginner

### Location

src/mat/impls/aij/seq/spqr/aijspqr.c
Index of all Mat routines
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Index of all manual pages