set reuse default lu->FactPattern = SamePattern

bugfix
Contributed-by: Kong, Fande <fande.kong@inl.gov>

enable option DOFACT for superlu_dist interface

Merge branch 'stefano_zampini/feature-mathypre'

Merge remote-tracking branch 'origin/hzhang/fix-superlu_dist-reuse-factornumeric'

set FactPattern = SamePattern_SameRowPerm as default when reuse matrix factor

Bugfix for repeated call of MatLUFactorNumeric_SuperLU_DIST()
Reported-by: Anton Popov <popov@uni-mainz.de>

Merge branch 'master' into stefano_zampini/feature-pcbddc-saddlepoint

This is needed to deal with some changes in MatNullSpace from commit 9d2471e

Merge remote-tracking branch 'origin/maint'

MatHYPRE: create new matrix type

The conversion from AIJ to HYPRE has been taken from src/dm/impls/da/hypre/mhyp.c
HYPRE to AIJ is new

pastix: some build issues are fixed in the latest release
Time: .1h
Reported-by: "Garth N. Wells" <gnw20@cam.ac.uk>
Reported-by: Pierre Jolivet <pierre.jolivet@enseeiht.fr>

fix typos in manual pages

Reported-by: Peter J. Puchyr <pjpuchyr@gmail.com>

Merge remote-tracking branch 'origin/karlrupp/feature-viennacl-preconditioners/master'

Fixes for MatMPIXXXSetPreallocation(), they were not reentrant, since they kept the information used for matrix-vector products

from the previous load as well as the incorrectly sized aij->B matrix.

Fixes for MatMPIXXXSetPreallocation(), they were not reentrant, since they kept the information used for matrix-vector products

from the previous load as well as the incorrectly sized aij->B matrix.
Time: 1.75 hours
Reported-by: Satish Balay <balay@mcs.anl.gov>

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Merge branch 'maint'

Conflicts:
config/BuildSystem/config/packages/boost.py
src/mat/impls/aij/mpi/mumps/mumps.c
src/sys/objects/ftn-custom/zstart.c

Merge branch 'stefano_zampini/feature-convert-matnest-matis' into stefano_zampini/feature-pcbddc-saddlepoint

I have to merge it here, since there's an API addition for MatIS in stefano_zampini/featu

Merge branch 'stefano_zampini/feature-convert-matnest-matis' into stefano_zampini/feature-pcbddc-saddlepoint

I have to merge it here, since there's an API addition for MatIS in stefano_zampini/feature-pcbddc-saddlepoint
that prevents me to smoothly merge stefano_zampini/feature-convert-matnest-matis into next.

This will also facilitate merging stefano_zampini/feature-pcbddc-saddlepoint into master

Conflicts:
src/docs/website/documentation/changes/dev.html

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Mat: MatSetBlockSizes as a MATOP.

it allows to change the block sizes at a later stage.
For the block formats, the default op raise an error if the user tries to change them

MAT: introduce setlateblocksize function that allows to change the block size after matrix setup

MatMUMPS: fix conversion from SeqAIJ to mumps upper triangular format in case of missing diagonal

MatSeqAIJ: if nonew is 0, allow setting a nonzero diagonal value

MatSeqAIJ: prevent from accessing outside the row

CUSP,ViennaCL: Fixed ILU and Cholesky preconditioner fallback.

The new registration mechanism for matrix factorizations was not
applied for CUSP and ViennaCL, thus the default ILU preconditioners di

CUSP,ViennaCL: Fixed ILU and Cholesky preconditioner fallback.

The new registration mechanism for matrix factorizations was not
applied for CUSP and ViennaCL, thus the default ILU preconditioners did not work.
This commit adds the missing registrations for these packages.

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Merge branch 'maint'

bugfix for MatPtAPNumeric_SeqAIJ_SeqAIJ_SparseAxpy()
Reported-by: Stefano Zampini <stefano.zampini@gmail.com>
The size of apj array needs to be AP->rmax(not available), not C->rmax.
Stefano provided

bugfix for MatPtAPNumeric_SeqAIJ_SeqAIJ_SparseAxpy()
Reported-by: Stefano Zampini <stefano.zampini@gmail.com>
The size of apj array needs to be AP->rmax(not available), not C->rmax.
Stefano provided a Pmat for ex94.c which gives smaller C->rmax. Use cn fixed the bug.

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initialize variables so compiler doesn't think they may be used uninitialized