PETSc
    
    
    
    
    
    
    
      
      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)
ADIC:
      
        - Support for global reductions on local functions
- Allow coloring of periodic grids
AO (Application Orderings):
      TS (Timestepping Solvers):
      DMMG:
      SNES (Nonlinear Solvers):
      
        - Removed all minimization support in PETSc. TAO package should be used for this functionality.
SLES (Linear Solvers):
      KSP (Krylov Subspace Methods):
      
        - Support -ksp_unpreconditioned_norm in -ksp_type cr
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
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
DA (Distributed Arrays):
      VEC (Vectors):
      IS (Index Sets):
      Draw (Graphics):
      
        - Added flag to support turning off axis resizing
Viewers:
      
        - Allow drawing rectangles in postscript
System:
      Error Handling:
      Event Logging:
      Fortran Interface: