PETSc

Documentation: Changes: 2.2.0

• Home
• Download
• Features
• Documentation
  • Manual pages and Users Manual
  • Referencing PETSc
  • Tutorials
  • Installation
  • SAWs
  • Changes
    • dev
    • 3.15
    • 3.14
    • 3.13
    • 3.12
    • 3.11
    • 3.10
    • 3.9
    • 3.8
    • 3.7
    • 3.6
    • 3.5
    • 3.4
    • 3.3
    • 3.2
    • 3.1
    • 3.0.0
    • 2.3.3
    • 2.3.2
    • 2.3.1
    • 2.3.0
    • 2.2.1
    • 2.2.0
    • 2.1.6
    • 2.1.5
    • 2.1.3
    • 2.1.2
    • 2.1.1
    • 2.1.0
    • 2.0.29
    • 2.0.28
    • 2.0.24
    • 2.0.22
    • 2.0.18-21
    • 2.0.17
    • 2.0.16
    • 2.0.15
  • Bug Reporting
  • Code Management
  • FAQ
  • License
  • Linear Solver Table
  • Nonlinear Solver Table
  • TAO Solver Table
• Applications/Publications
• Miscellaneous
• External Software
• Developers Site

General:

• Changed petscengine.h to petscmatlab.h
• Changed PetscOptionsEList() to return the index of the string selected by the user (error if user enters impossible string)

Vec:

• VecLoad() has a new argument giving the Vector type to be created

Mat:

• If you use MAT_SYMMETRIC as option for MatSetOption() you will likely need to also use the option MAT_SYMMETRY_ETERNAL otherwise at the next MatAssembly the matrix will likly lose the symmetry flag.
• Added MatISGetLocalMat() to allow preallocating the local matrix.

PC:

KSP:

• changed unmodifiedGramSchmidt name to classicalGramSchmidt everywhere.
• Eliminated KSPGMRESIROrthogonalize() now have KSPGMRESSetCGSRefinement() to decide when to use iterative refinement
• The SLES object has been removed from PETSc. All of this options are available via the KSP object. For example, -sles_view_binary ->ksp_view_binary, SLESCreate()->KSPCreate() The calling sequences SLESSetUp(sles,b,x) should be replaced with KSPSetRhs(ksp,b) KSPSetSolution(ksp,x) KSPSetUp(ksp). Similarly SLESSolve(sles,b,x) should be replaced with KSPSetRhs(ksp,b) KSPSetSolution(ksp,x) KSPSolve(ksp)
• removed its argument from KSPSolve. Obtain the number of iterations via KSPGetIterationNumber()

SNES:

• SNESSolve() no longer returns number of iterations, use SNESGetIterationNumber() to get the number of iterations required

TS:

DMMG:

• Added support for -dmmg_galerkin and DMMGSetUseGalerkin() for nonlinear problems (not sequential only)

SYS:

• added new PETSC_VIEWER_MATLAB for saving variables to Matlab .mat files
• eliminated PetscViewerXXXXType and PetscViewerXXXSetType() replaced with PetscViewerFileType and PetscViewerSetFileType()
• PETSC_BINARY_RDONLY,PETSC_BINARY_WRONLY,PETSC_BINARY_CREATE becomes PETSC_FILE_RDONLY,PETSC_FILE_WRONLY,PETSC_FILE_CREATE

Fortran:

ExternalPackages: