Changes: 3.13


  • Update make test to run the full test suite. Use make check to run the short test

  • Remove last PetscBool argument from PetscBinaryWrite() and PetscBinarySynchronizedWrite()

  • Change PetscLayoutFindOwner() and PetscLayoutFindOwnerIndex() to return a PetscMPIInt instead of a PetscInt

  • Support for Compaq F90 is removed along with supporting flags PETSC_HAVE_FORTRAN_STDCALL, PETSC_BLASLAPACK_STDCALL, HAVE_FORTRAN_MIXED_STR_ARG

  • Promote all example directories examples/tutorials/ and examples/tests/ to tutorials/ and tests/ respectively

  • Make title argument of PetscOptionsBegin() obligatory



  • Add ISSetInfo(): set local and global properties of an IS (whether the IS is sorted, unique, a permutation, an interval, or identity)

  • Add ISGetInfo(): query local and global properties of an IS



  • Fix few bugs in PETSCSFWINDOW when using PETSCSF_WINDOW_SYNC_LOCK or PETSCSF_WINDOW_SYNC_ACTIVE synchronization types

  • Add window reusage for PETSCSFWINDOW and support for different creation flavor types. See PetscSFWindowFlavorType man page for details

  • Set default of -use_gpu_aware_mpi from false to true



  • VecPinToCPU() is deprecated in favor of VecBindToCPU()

  • Add Vec{Set|Get}PinnedMemoryMin() and -vec_pinned_memory_min option. Note that VECCUDA now defaults to using pinned memory for host allocations




  • PetscPartitionerPartition() does not longer gets a DM as input. Vertex weights can be specified through PetscSection



  • Improve the performance of MatConvert_AIJ_BAIJ by preallocating the Mat before dispatching to MatConvert_Basic

  • Change the behavior of MatConvert_AIJ_SBAIJ for block size greater than one, the block structure is now preserved (even for the diagonal entries)

  • Fix various bugs related with matrix conversions from Hermitian SBAIJ matrices with complex numbers

  • Add MatPropagateSymmetryOptions to propagate symmetry information from one matrix to another

  • Fix a bug in MATSUPERLU_DIST interface when MATMPIAIJ with commsize 1 is used

  • Add MATCHOLMOD support for block solves

  • –download-suitesparse now uses the official SuiteSparse repository

  • MatPinToCPU() is deprecated in favor of MatBindToCPU()

  • Fix MatAXPY for MATSHELL

  • MatAXPY(Y,0.0,X,DIFFERENT_NONZERO_PATTERN) no longer modifies the nonzero pattern of Y to include that of X

  • Add support of selective 64-bit MUMPS, i.e., the regular/default build of MUMPS. One should still build PETSc –with-64-bit-indices to handle matrices with >2G nonzeros

  • Add MatProductCreate(), MatProductCreateWithMat(), MatProductSetType(), MatProductSetAlgorithm(), MatProductSetFill(), MatProductSetFromOptions(), MatProductSymbolic(), MatProductNumeric(), MatProductReplaceMats(), MatProductClear()

  • Deprecate MatMatMultSymbolic(), MatMatMultNumeric()

  • Deprecate MatMatTransposeMultSymbolic(), MatMatTransposeMultNumeric()

  • Deprecate MatPtAPSymbolic(), MatPtAPNumeric()

  • Deprecate MatRARtSymbolic(), MatRARtNumeric()

  • Fix a deadlock with MATELEMENTAL; if one configures PETSc with Elemental and has PETSC_COMM_WORLD != MPI_COMM_WORLD, it is now one’s responsability to explicitly call PetscElementalInitializePackage()/PetscElementalFinalizePackage() outside of PetscInitialize()/PetscFinalize(). PetscElementalInitializePackage()/PetscElementalFinalizePackage() are collective on MPI_COMM_WORLD.


  • Change the default behavior of PCASM and PCGASM to not automatically switch to PCASMType BASIC if the matrices are symmetric

  • Change the default behavior of PCCHOLESKY to use nested dissection ordering for AIJ matrix


  • Add KSPHPDDMGetDeflationSpace and KSPHPDDMSetDeflationSpace for recycling Krylov methods in KSPHPDDM


  • Deprecate -snes_test_jacobian_display and -snes_test_jacobian_display_threshold. -snes_test_jacobian accepts an optional threshold parameter (since v3.10) and -snes_test_jacobian_view should be used in favor of -snes_test_jacobian_display


  • Add SNESLineSearchGetType() in v3.13.1.



  • TAOPDIPM: A new solver in TAO for general NLP problems


  • DMCopyLabels(): add two additional input flags

  • DMPlexDistribute(): fix a bug associated with vertex partition weights and overlapped meshes

  • DMPlexDistribute(): vertex partition weights are now computed by summing all the local section dofs in the transitive closure of each cell

  • Add PetscTabulation to hold function tabulation data

  • Add DMEnclosureType to describe relations between meshes

  • Add DMGetEnclosureRelation() and DMGetEnclosurePoint() to discover relations between meshes

  • Add DMPolytopeType to describe different cell constructions


  • DMPlexInterpolate() now works correctly for distributed DMPlex

  • The idea of hybrid and ghost cells has been removed from Plex in favor of cell type

  • Plex can now classify points by cell type, stored in a DMLabel. This is useful for operations that require more than topological data, such as mesh interpolation, geometric calculations, and is also used an index to avoid repeated topological queries

  • Add DMPlexSetCellType() and DMPlexCreateReferenceCellByType()

  • Distribution sorts strata by cell type.

  • Plex can now allow any number of cell types in a single mesh. Interpolation, refinement, and extraction of submeshes mixed meshes work smoothly. Both oriented and tensor-product prisms can be used in the same mesh

  • Cell refiners have been abstracted. Currently there are two (regular refinement, and conversion to hexes). The plan is to add more, such as local extrusion and conversion to simplices

  • Remove SimplexToTensor in favor of DM_REFINER_TO_BOX

  • DMForest now responds to DMPlexGetOverlap() and propagates its overlap to the underlying Plex

  • Add DMPlexGetSimplexOrBoxCells() to replace DMPlexGetInteriorCellStratum()

  • Add DMPolytopTypeGetDim(), DMPolyTopeTypeGetConeSize(), DMPolytopeTypeGetNumVertices()

  • Add DMLabelSetStratumBounds()

  • Add DMPlexOrientCell() which orients a single cell

  • Add DMPlexCompareOrientations() which compares the cone point order of a single cell with the given reference cone

  • Add DMPlexIsInterpolated() which finds out whether the plex is interpolated

  • Add DMPlexIsInterpolatedCollective() which finds out whether the plex is interpolated on all ranks

  • Add DMPlexIsDistributed() which finds out whether the plex is distributed


  • Add DMNetworkSetComponentNumVariables(), DMNetworkGetComponentVariableOffset(), and DMNetworkGetComponentVariableGlobalOffset() to set number of variables for a component, and retrieve its local/global offsets.


  • All tabulated data is now stored in PetscTabulation structures. This changes interfaces in PetscDS, PetscFE, and PetscFV

  • Rename DefaultTabulation to CellTabulation everywhere

  • PetscDTGaussJacobiQuadrature() is now truly Gauss-Jacobi quadrature. The quadrature for the simplex (without weight function) is now called PetscDTStroudConicalQuadrature()

  • Add PetscDTJacobiEval(), PetscDTGaussLobattoJacobiQuadrature()

  • Add PetscDTIndexToBary() and PetscDTBaryToIndex() for barycentric lattice calculations

  • Add PetscDTNodeType to enumerate methods of defining interpolation nodes

  • PetscDualSpace now has PetscDualSpaceSetFormDegree() and PetscDualSpaceGetFormDegree() for governing functional pushforward/pullback behavior

  • PETSCDUALSPACELAGRANGE now has PetscDualSpaceGetTrimmed() and PetscDualSpaceSetTrimmed() for creating degrees of freedom for trimmed polynomial spaces

  • PETSCDUALSPACELAGRANGE now has PetscDualSpaceGetNodeType() and PetscDualSpaceSetNodType() for controlling the placement of interpolation nodes

  • PETSCDUALSPACEBDM is no longer a standalone type of PetscDualSpace: it is now a constructor alias for PETSCDUALSPACELAGRANGE


  • Remove last PetscBool argument from PetscViewerBinaryWrite()

  • Add “fieldnum” argument to PetscViewerVTKAddField() to indicate only one field of the vector should be viewed


  • Rename PetscSignalSegvCheckPointer() to PetscSignalSegvCheckPointerOrMpi()

  • Extend -info option controlling PetscInfo(). It now takes takes optional arguments -info [filename][:[~]list,of,classnames[:[~]self]]. See PetscInfo() manpage

  • Add new API to control PetscInfo() programatically:

    • Add PetscInfoEnabled() - Indicate whether a given PETSc class is allowed in PetscInfo()

    • Add PetscInfoSetFile() - Set output destination of PetscInfo()

    • Add PetscInfoGetFile() - Get output destination of PetscInfo()

    • Add PetscInfoSetClasses() - Sets the classes which PetscInfo() is filtered for/against

    • Add PetscInfoGetClass() - Indicates whether the provided classname is marked as a filter in PetscInfo() as set by PetscInfoSetClasses()

    • Add PetscInfoProcessClass() - Activates or deactivates a class based on the filtering status of PetscInfo()

    • Add PetscInfoGetInfo() - Returns the current state of several indicator flags for PetscInfo()

    • Add PetscInfoSetFilterCommSelf() - Sets PetscInfoCommFlag enum to control communicator size filtering for PetscInfo()

    • Add PetscInfoDestroy() - Destroys and resets internal PetscInfo() filter options

    • Change PetscInfoAllow() to only activate/deactivate PetscInfo(), file setting is now handled separately by PetscInfoSetFile()

  • Add PetscSubcommGetParent() - Gets the communicator that was used to create the PetscSubcomm

  • Add PetscSubcommGetContiguousParent() - Gets a communicator that that is a duplicate of the parent but has the ranks reordered by the order they are in the children

  • Add PetscSubcommGetChild() - Gets the communicator created by the PetscSubcomm

  • Change the default option of -build_twosided from ibarrier to allreduce for communicators with no more than 1024 ranks