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# Changes: 2.0.22
```{rubric} General:
```
- The Fortran90-specific routines such as `VecGetArrayF90()` now
work with the IBM Fortran compiler, the SGI Fortran 90 compiler,
and the Cray T3E Fortran compiler.
- The third argument for the Fortran versions of the routines
`VecGetArray()/VecRestoreArray(),`
`ISGetIndices()/ISRestoreIndices(), MatGetArray()/MatRestoreArray()`
and `DAGetGlobalIndices()` has been changed from `integer` to
`PetscOffset`. See src/snes/examples/tutorials/ex5f.F for
example usage.
- Changed the location of the manual pages from docs/www/www.html
and docs/www to `docs/manualpages/manualpages.html` and
`docs/manualpages`.
- The location of the mpiuni include files (used in the base.site
file when not compiling with an MPI) has moved from `src/mpiuni`
to `src/sys/src/mpiuni`
- Added the option `-log_summary_exclude <vec,mat,sles,snes>` to
limit the information printed in the summary table
- Added the option `-log_info_exclude <vec,mat,sles,snes>`
- Changed the calling sequences of
`PetscGetTime(), PetscGetCPUTime(), PetscGetFlops()`
to return error codes like all other PETSc functions.
- Changed the internal structure of the PETSc objects. This will not
effect most users but makes PETSc more extensible for the future.
- Removed the PETSc object child support and replaced it with
- `PetscObjectCompose(PetscObject,char *name,PetscObject);`
- `PetscObjectQuery(PetscObject,char *name,PetscObject *);`
- `PetscObjectComposeFunction(PetscObject,char *name, void *);`
- `PetscObjectQueryFunction(PetscObject,char *name,void **);`
These allow the user to attach objects and functions to any PETSc
object.
- Added a feeble example that demonstrates how to manage
partitioning a grid in parallel in
`src/mat/examples/tutorials/ex2.c`
- The build command 'make all' in \$\{PETSC_DIR} will build the PETSc
libraries, including the fortran interface.
```{rubric} AO (Application Orderings):
```
```{rubric} TS (Timestepping Solvers):
```
- The calling sequence of `TSSetType()` has changed; see the
manual page.
- `TSType` is now a string, rather than enum type
```{rubric} SNES (Nonlinear Solvers):
```
- The calling sequence of `SNESSetType()` has changed; see the
manual page.
- `SNESType` is now a string, rather than enum type
```{rubric} SLES (Linear Solvers):
```
- See PC and KSP
```{rubric} KSP (Krylov Subspace Methods):
```
- The calling sequence of `KSPSetType()` has changed; see the
manual page.
- `KSPType` is now a string, rather than enum type.
```{rubric} PC (Preconditioners):
```
- Added two new PC classes, `PCSLES` and `PCCOMPOSITE` that
allow use of any `SLES` object as a preconditioner and enable
combining several preconditioners.
- The calling sequence of `PCSetType()` has changed; see the
manual page.
- `PCType` is now a string, rather than enum type.
```{rubric} MAT (Matrices):
```
- Added support for partitioning using the ParMETIS parallel
partitioning package, see the manual page for
`PartitioningCreate()`
- Added `MatGetColumnVector()`
- Added argument column size to `MatGetSubMatrix()`
- Changed the memory allocation algorithm in
`MatLUFactorSymbolic()` and `MatILUFactorSymbolic()` based on
a suggestion by David Hysom of ODU.
- The third argument for the Fortran version of the routines
`MatGetArray()/MatRestoreArray()` has been changed from
`integer` to `PetscOffset`.
```{rubric} DA (Distributed Arrays):
```
- Changed `DAGetDistributedVector()` and `DAGetLocalVector()` to
`DACreateGlobalVector()` and `DACreateLocalVector()`. You
should destroy these vectors with a usual call to
`VecDestroy()`.
- The third argument for the Fortran version of the routine
`DAGetGlobalIndices()` has been changed from `integer` to
`PetscOffset`.
```{rubric} VEC (Vectors):
```
- Added
`VecSetBlockSize(), VecSetValuesBlocked(), VecSetValuesBlockedLocal(), VecSetLocalToGlobalMappingBlocked()`
- Added`VecCreatedShared(),` which creates a parallel vector in
shared memory on the SGI machines
- Changed `VEC_IGNORE_OFF_PROCESSOR_ENTRIES` to
`VEC_IGNORE_OFF_PROC_ENTRIES`
- The third argument for the Fortran versions of the routines
`VecGetArray()/VecRestoreArray(),` has been changed from
`integer` to `PetscOffset`. See
src/snes/examples/tutorials/ex5f.F for example usage.
- `VecGetArray(), VecRestoreArray()` now work from Fortran on all
machines, finally after 3 long years!
- Changed the calling sequence of `VecCreate()`, now takes both
local and global size, see the manual page.
```{rubric} IS (Index Sets):
```
- The third argument for the Fortran versions of the routines
`ISGetIndices()/ISRestoreIndices()` has been changed from
`integer` to `PetscOffset`.
```{rubric} Draw (Graphics):
```
```{rubric} Viewers:
```
```{rubric} System:
```
```{rubric} Error Handling:
```
```{rubric} Event Logging:
```
```{rubric} Fortran Interface:
```
- `PETSC_NULL` has been replaced with `PETSC_NULL_INTEGER`,
`PETSC_NULL_SCALAR`, `PETSC_NULL_DOUBLE` or
`PETSC_NULL_CHARACTER` depending on the context for usage. If
the function expects an integer, a scalar (double or complex
depending if you compile with BOPT=\*\_complex), a double precision
array, or a string.
- The Fortran include files are now located in the directory
"include/finclude/*.", rather than "include/FINCLUDE/*.h". The
include files that used to be in "include/finclude/*.h" (not
recommended) are now in "include/foldinclude/*.h"
- If you have stored PETSc objects in Fortran integer arrays, such
as `user(3) = vec` you have to declare those arrays to be of
type `PetscFortranAddr` instead of as integer. Note that
`PetscFortranAddr` is simply integer on 32 bit machines and
integer\*8 on 64-bit machines.
- The Fortran90-specific routines such as `VecGetArrayF90()` now
work with the IBM Fortran compiler, the SGI Fortran 90 compiler,
and the Cray T3E Fortran compiler.
- PETSc objects can now be passed between C and Fortran directly.
You do not have to use the commands
`PetscCObjectToFortranObject()` and
`PetscFortranObjectToCObject()` to translate the objects between
languages.
- Changed Fortran object argument from type int to type
PetscFortranAddr in the routines `PetscCObjectToFortranObject()`
and `PetscFortranObjectToCObject().`
- Added the routine `PetscInitializeFortran()` to assist in
mixed-language use of PETSc. See the manual page for details.
|
