Changes: 2.2.0ΒΆ
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: