Merge remote-tracking branch 'origin/maint'

Merge branch 'stefanozampini/fix-matgetlocalsize-docs' into 'maint'

MatGetLocalSize: remove misleading comment from documentation

See merge request petsc/petsc!2944

MatGetLocalSize: remove misleading comment from documentation

Most external factorization packages do not use the ordering provided by PETSc, therefor only provide it when needed.

Adds MatOrderingType external to indicate not to generate an ordering and use wh

Most external factorization packages do not use the ordering provided by PETSc, therefor only provide it when needed.

Adds MatOrderingType external to indicate not to generate an ordering and use what the package needs
Now -pc_view will not print the wrong PETSc ordering when the ordering is done externally

Saves some memory and compute time.

Commit-type: optimization
Time: 1.2 hours
Reported-by: Junchao Zhang <junchao.zhang@gmail.com>
Thanks-to: Stefano Zampini <stefano.zampini@gmail.com>

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Merge branch 'stefanozampini/feature-cusparse-notransgen-herm' into 'master'

feature cusparse notransgen herm

See merge request petsc/petsc!2915

MATSEQAIJCUSPARSE: log transpose generation

MatMultHermitianTranspose: use MatTranspose directly for real builds

Merge branch 'jose/scalapack' into 'master'

MATSCALAPACK: new Mat type that wraps a ScaLAPACK matrix

See merge request petsc/petsc!2858

MATSCALAPACK: new Mat type that wraps a ScaLAPACK matrix

Merge branch 'maint'

Merge branch 'jolivet/fix-matmulttranspose-symmetric' into 'maint'

No need for ops->multtranspose if mat->symmetric (same with Hermitian transpose)

See merge request petsc/petsc!2851

Merge remote-tracking branch 'origin/barry/2020-05-30/trivial-sizeof-fixes'

Updated the use of sizeof() when possible instead of using hardwired sizes for...

See merge request petsc/petsc!2827

Updated the use of sizeof() when possible instead of using hardwired sizes for functions whose string arguments
need sizes. In particular done for PetscOptionsGetString(), PetscOptionsString(), and a

Updated the use of sizeof() when possible instead of using hardwired sizes for functions whose string arguments
need sizes. In particular done for PetscOptionsGetString(), PetscOptionsString(), and a few other utilities

Commit-type: style-fix

Development Tools: Vim, Emacs, Eclipse

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No need for ops->multtranspose if mat->symmetric

Merge branch 'jolivet/feature-kspmatsolve-deprecate-ksphpddmmatsolve' into 'master'

Change how solves with multiple RHS work

See merge request petsc/petsc!2811

Change how solves with multiple RHS work

* Deprecate KSPHPDDMMatSolve
* Add KSPMatSolve, previously known as KSPHPDDMMatSolve
* New option -ksp_matsolve_block_size
* New routines MatDense[Get|Restor

Change how solves with multiple RHS work

* Deprecate KSPHPDDMMatSolve
* Add KSPMatSolve, previously known as KSPHPDDMMatSolve
* New option -ksp_matsolve_block_size
* New routines MatDense[Get|Restore]SubMatrix

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Merge branch 'stefanozampini/feature-add-hpackages-rebased' into 'master'

Fixes to MatProduct + many bug fixes + new hierarchical matrix support

See merge request petsc/petsc!2800

Merge branch 'jose/elemental-header' into 'master'

MATELEMENTAL: move header to include/petsc/private so that it can be used from SLEPc

See merge request petsc/petsc!2815

Fix argument check

MatProduct: proper cleanup of additional data structure

Do not mess with view/destroy routine, add an extra slot to MatProduct struct to stash the data, destroy/view routines
Deprecate MatFreeInterm

MatProduct: proper cleanup of additional data structure

Do not mess with view/destroy routine, add an extra slot to MatProduct struct to stash the data, destroy/view routines
Deprecate MatFreeIntermediateStructures in favor of MatProductClear
Clean up base headers for matrix classes
Update tests (remove some todos from ex70 because now the tests work properly)
MatProductSetType should not set the setfromoptions operation!
MatProductClear should reset operations
Remove no longer needed function composition
Add few more PetscInfo messages
Single dispatch routine
MatProductSetFromOptions routines are now allowed to fail
MatProductSetFromOptions_SeqXBAIJ_SeqDense: support for MATPRODUCT_AtB
MatTransposeMatMultNumeric_SeqAIJ_SeqDense: fix bug with leading dimensions
Make internal functions PETSC_INTERN
Fix a couple of places where the destroy routine of the matrix was changed
Products should all use internal data (or composed data attached to the internal data)
Fix few bugs in MPIAIJ_MPIDENSE product with stages

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MatDiagonalScale: postpone check for operation

MatProduct: add support for basic AB and AtB products with B of type dense

do not fail if not supported
MatProductSetAlgorithm should copy the string, not the pointer!
Fix various checks
Fix new mat

MatProduct: add support for basic AB and AtB products with B of type dense

do not fail if not supported
MatProductSetAlgorithm should copy the string, not the pointer!
Fix various checks
Fix new mat/vec type propagation in few cases

Reported-by: "Jose E. Roman" <jroman@dsic.upv.es>, Pierre Jolivet <pierre.jolivet@enseeiht.fr>

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MATMPIDENSE: support CUDA

MatSeqDense: add support to check for symmetricity

Add array accessors routines

fix MatSetRandom for leading dimension

Use PetscSF for MatMult
- uses the right communica

MATMPIDENSE: support CUDA

MatSeqDense: add support to check for symmetricity

Add array accessors routines

fix MatSetRandom for leading dimension

Use PetscSF for MatMult
- uses the right communication pattern instead of point-to-point
- can take advantage of CUDA aware MPI

Fix bugs related with LDA
Fix direct usage of cpu memory: use MatDenseGetArray (and variants) instead
Fix MatZeroRows
Fix MatView in Binary for SeqDense

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MatConvert: add few other PetscInfo messages

Minor