petsc-3.14.6 2021-03-30
Documentation: Changes: 2.2.0
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: