PCView error with MUMPS, GAMG, and LMVM

Merge remote-tracking branch 'origin/maint'

Double CHKERRQ

MATCHOLMOD: support for MatMatSolve and MatGetInfo

Fix bug with complex matrices: cholmod requires hermitian matrices (upper triangular)
Add missing prefix for options: all the other factorization p

MATCHOLMOD: support for MatMatSolve and MatGetInfo

Fix bug with complex matrices: cholmod requires hermitian matrices (upper triangular)
Add missing prefix for options: all the other factorization packages search for options prefixed by the matrix prefix

KSP ex62: add umfpack test and disable few cases for complex

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MATSBAIJ: Fix Hermitian MatMult for Seq and MPI code paths

we can reuse the same MatMult operation with no impact for non-complex builds
Remove improper check for the hermitian complex case from Mat

MATSBAIJ: Fix Hermitian MatMult for Seq and MPI code paths

we can reuse the same MatMult operation with no impact for non-complex builds
Remove improper check for the hermitian complex case from MatGetFactor and move it where it actually belongs
Fix conversion routines from SBAIJ when the hermitian flag is set

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minor

CHOLMOD: expose customizable GPU parameters and number of methods

Merge branch 'maint'

Expose MatSeqBAIJ[Get|Restore]Array

Improves MatConvert([MPI|Seq][S]BAIJ)

MatMatMult_SeqSBAIJ_SeqDense

Merge remote-tracking branch 'origin/maint'

Replace use of 1 with appropriate error code; use PetscObjecComm() instead of PETSC_COMM_SELF for errors when appropriate

Commit-type: error-checking, testing-fix, style-fix, examples

Bug fix: computing MG complexity had integer overflow. Would only occur for very large problems

Also fixed code that computes parallel matrix storage information to communicate with PetscLogDouble i

Bug fix: computing MG complexity had integer overflow. Would only occur for very large problems

Also fixed code that computes parallel matrix storage information to communicate with PetscLogDouble instead of PetscReal.

Commit-type: bug-fix
Reported-by: Mark Lohry <mlohry@gmail.com>

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Double semicolons

Fixes and improvements for PCHPDDM and KSPHPDDM

PetscLayout: forbid calling setup twice with different sizes

* PetscLayout objects should be considered immutable, especially because they can be shared.
* Make use of PetscLayoutCreateFromSizes().

PetscLayout: forbid calling setup twice with different sizes

* PetscLayout objects should be considered immutable, especially because they can be shared.
* Make use of PetscLayoutCreateFromSizes().
* setupcalled is now the single indicator that PetscLayout is ready.
* Insure the rest of variables (e.g. map->rstart) are calculated even if n, N and range are set.

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Same logic between MPIAIJ and MPI[SBAIJ,BAIJ].