PETSc

Documentation: Changes: 2.2.0

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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: