PCHPDDM: new option -pc_hpddm_log_separate

PCGAMGSetUseSAEstEig: fix logic

We need to call setfromoptions before PCSetUp_MG to really
use the SA estimates, otherwise the chebyshev smoother will keep
estimating the eigenvalues internally if t

PCGAMGSetUseSAEstEig: fix logic

We need to call setfromoptions before PCSetUp_MG to really
use the SA estimates, otherwise the chebyshev smoother will keep
estimating the eigenvalues internally if the transformation is
given at command line via -ksp_chebyshev_esteig x,y,z,w

fix function argument

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PCGAMG: use symbolic squaring for GEO variant

PCGAMG_AGG: we don't need the matrix entries to coarsen the graph

PCGAMG_AGG: propagate symmetry information in graph matrix

PCGAMG: fix performance regression with GAMG

when we reuse the interpolation between successive GAMG calls, it is better to generate the tranpose by default

hardwire AIJ Mat for GAMG setup matrix

Tune bjacobi gpu vector handling

PCASMGetSubKSP, PCGASMGetSubKSP: add fortran interface definitions

Fixes pflotran+gfortran-10 build.

Merge branch 'barry/2020-09-03/fix-agg-emax' into 'master'

Produce a hard error if the singular value computations for GAMG produce a zero maximum value

See merge request petsc/petsc!3178

Merge remote-tracking branch 'origin/maint' into master

PCFieldSplit used pc->mat in several places where it should have used pc->pmat which is more
likely to provide the needed matrix values.

Commit-type: bug-fix
Funded-by: SciDAC application partnershi

PCFieldSplit used pc->mat in several places where it should have used pc->pmat which is more
likely to provide the needed matrix values.

Commit-type: bug-fix
Funded-by: SciDAC application partnership
/spend 5m
Reported-by: "Blondel, Sophie" <sblondel@utk.edu>

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Fix several typos in error strings

Produce a hard error if the singular value computations for GAMG produce a zero maximum value

Removed unneeded MPI rank calls,
fix missing (double) cast for print,
fix docs regarding collectivity an

Produce a hard error if the singular value computations for GAMG produce a zero maximum value

Removed unneeded MPI rank calls,
fix missing (double) cast for print,
fix docs regarding collectivity and add checks,
general cleanup on PETSc style.

Commit-type: error-checking, style-fix, documentation
/spend 20m

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doc: fix build errors

Merge branch 'knepley/feature-plex-adaptive-interpolation' into 'master'

Knepley/feature plex adaptive interpolation

See merge request petsc/petsc!3018

Fix some %d that should be %D
Fix some source code style

Commit-type: style-fix
/spend 15m

Turn on checkbadSource test to generate an error when found; fix all source code that causes errors

Commit-type: portability-fix, testing-fix, style-fix, feature, maintainability
/spend 1.5h

DM+SNES: Preliminary adaptive interpolation
- Using the scheme from BootstrapAMG with some modifications to apply to GMG
- Moved adaptive interpolation into DM from Plex
- Added event for adaptation

DM+SNES: Preliminary adaptive interpolation
- Using the scheme from BootstrapAMG with some modifications to apply to GMG
- Moved adaptive interpolation into DM from Plex
- Added event for adaptation
- Added routine to check an interpolator
- Added viewer for coarse and fine vectors used for interpolation optimization
- Add coarse space determined by eigenvectors
- Right now adaptive interpolation is unweighted

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PCMG: Added adaptive interpolation
- Added coarse vectors to resolve at each level
- Added adaptation flag and API
- Added option -pc_mg_adapt_interp to turn on adaptation
- Use -dm_interpolator_ada

PCMG: Added adaptive interpolation
- Added coarse vectors to resolve at each level
- Added adaptation flag and API
- Added option -pc_mg_adapt_interp to turn on adaptation
- Use -dm_interpolator_adapt_k to set subspace size and -dm_interpolator_adapt_use_poly to select type of functions
- Doc fixes for functions
- Fix options for construction of a vanilla coarse space
- Require Galerkin matrices for adaptive interpolation
- Fixed problem with composed eigenvalue
- Normalize eigenvector in smoothing loop
- Added option to use generalized eigenvector basis (For some reason, this is worse on test problems)
- Make adaptive allocation happen only initially, protect adaptive functions from invalid levels

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PCFIELDSPLIT: Fixed indentation

Merge remote-tracking branch 'origin/maint'

Non-ASCII characters in source should be an immediate error, not allowed in master

I wasted a huge amount of time with Python 3 and difficulties reading files with stdin and friends
due to non-ASCII

Non-ASCII characters in source should be an immediate error, not allowed in master

I wasted a huge amount of time with Python 3 and difficulties reading files with stdin and friends
due to non-ASCII characters in the source

Commit-type: error-checking, portability-fix, testing-fix, style-fix, feature
/spend 5h

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Merge branch 'jolivet/feature-pcmatapply-asm' into 'master'

PCASM, PCSPAI, and PCGASM: add PCMatApply()

See merge request petsc/petsc!2959

Merge remote-tracking branch 'origin/maint'