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# Changes: 2.1.2
```{rubric} General:
```
- Win32fe now takes --nt4 option for compatibility on NT4
- Supports cygwinpaths in win32fe
- Better support for borland tools
- Added PetscOptionsInsertString()
- Allow full path of debugger to be specified using
-start_in_debugger option
- Better hyperlinks across documentation (including users manual)
```{rubric} ADIC:
```
- Support for global reductions on local functions
- Allow coloring of periodic grids
```{rubric} AO (Application Orderings):
```
```{rubric} TS (Timestepping Solvers):
```
```{rubric} DMMG:
```
```{rubric} SNES (Nonlinear Solvers):
```
- Removed all minimization support in PETSc. TAO package should be
used for this functionality.
```{rubric} SLES (Linear Solvers):
```
```{rubric} KSP (Krylov Subspace Methods):
```
- Support -ksp_unpreconditioned_norm in -ksp_type cr
```{rubric} PC (Preconditioners):
```
- Added support for PCType PCMAT (PC based on a matvec)
- Added support for PCType PCHYPRE (includes PILUT, EUCLID, and
BoomerAMG)
- Cholesky - additional info from factorization
```{rubric} MAT (Matrices):
```
- SBAIJ matmult - improve performance by optimizing communication.
- markdiagonal - performance optimization.
- SuperLU interface improved (check page 75 in the user's manual)
- DSCPACK interface inproved
- Spooles interface added
```{rubric} DA (Distributed Arrays):
```
```{rubric} VEC (Vectors):
```
```{rubric} IS (Index Sets):
```
```{rubric} Draw (Graphics):
```
- Added flag to support turning off axis resizing
```{rubric} Viewers:
```
- Allow drawing rectangles in postscript
```{rubric} System:
```
```{rubric} Error Handling:
```
```{rubric} Event Logging:
```
```{rubric} Fortran Interface:
```
|
