PETSc

Documentation: Changes: Development

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General:

• Change MPIU_Allreduce() to always returns a MPI error code that should be checked with CHKERRMPI(ierr)

Configure/Build:

Sys:

PetscViewer:

• PetscViewerHDF5PushGroup(): if input path begins with /, it is taken as absolute, otherwise relative to the current group
• Add PetscViewerHDF5HasDataset()
• PetscViewerHDF5{Has,Read,Write}Attribute(), PetscViewerHDF5HasDataset() and PetscViewerHDF5HasGroup() support absolute paths (starting with /) and paths relative to the current pushed group
• PetscViewerHDF5ReadAttribute(): add input argument for default value that is used if attribute is not found in the HDF5 file

PetscDraw:

AO:

IS:

VecScatter / PetscSF:

PF:

Vec:

PetscSection:

PetscPartitioner:

Mat:

• Factorization types now provide their preferred ordering (which may be MATORDERINGEXTERNAL) to prevent PETSc PCFactor from, by default, picking an ordering when it is not ideal
• Deprecate MatFactorGetUseOrdering(); Use MatFactorGetCanUseOrdering() instead

PC:

KSP:

SNES:

SNESLineSearch:

TS:

TAO:

DM/DA:

• Change management of auxiliary data in DM from objet composition to DMGet/SetAuxiliaryVec(), DMCopyAuxiliaryVec()
• Remove DMGetNumBoundary() and DMGetBoundary() in favor of DS counterparts
• Remove DMCopyBoundary()
• Change interface for DMAddBoundary(), PetscDSAddBoundary(), PetscDSGetBoundary(), PetscDSUpdateBoundary()

DMSwarm:

• Add DMSwarmGetCellSwarm() and DMSwarmRestoreCellSwarm()

DMPlex:

• Add a PETSCVIEWEREXODUSII viewer type for DMView/Load and VecView/Load. Note that not all DMPlex can be saved in exodusII format since this file format requires that the numbering of cell sets be compact
• Add PetscViewerExodusIIOpen() convenience function
• Add PetscViewerExodusIISetOrder() PetscViewerExodusIISetOrder() to generate "2nd order" elements (i.e. tri6, tet10, hex27) when using DMView with a PETSCVIEWEREXODUSII viewer
• Change DMPlexComputeBdResidualSingle() and DMPlexComputeBdJacobianSingle() to take a form key

FE/FV:

• Change PetscFEIntegrateBdResidual() and PetscFEIntegrateBdJacobian() to take both PetscWeakForm and form key

DMNetwork:

DT:

• Add PetscWeakFormCopy() and PetscWeakFormRewriteKeys()
• Add PetscDSDestroyBoundary() and PetscDSCopyExactSolutions()

Fortran: