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<h1> Docs: Changes: 2.1.2</h1>
<p align="center"><font color="#FF0000" size="5"><a
name="CHANGES">CHANGES</a> in PETSc 2.1.2 </font></p>
<p><font size="4"><strong><u>General:</u></strong></font> <br>
<br>
Win32fe now takes --nt4 option for compatibility on NT4<br>
Supports cygwinpaths in win32fe<br>
Better support for borland tools<br>
<br>
Added PetscOptionsInsertString() <br>
Allow full path of debugger to be specified using -start_in_debugger option<br>
Better hyperlinks across documentation (including users manual)
<p><b><font size="4">ADIC:<br>
</font></b><br>
Support for global reductions on local functions<br>
Allow coloring of periodic grids<br>
<p><font size="4"><strong><u>AO (Application Orderings):</u></strong></font></p>
<p><font size="4"><strong><u>TS (Timestepping Solvers):</u></strong></font>
<p><font size="4"><strong><u>DMMG</u></strong></font><p><font size="4"><strong><u>SNES (Nonlinear Solvers):</u></strong></font>
<br>
<br>
Removed all minimization support in PETSc. TAO package should be used for
this functionality.<br>
<p><font size="4"><strong><u>SLES (Linear Solvers):</u></strong></font>
<p><font size="4"><strong><u>KSP (Krylov Subspace Methods):</u></strong></font>
<br>
<br>
Support -ksp_unpreconditioned_norm in -ksp_type cr<p><font size="4"><strong><u>PC (Preconditioners): </u></strong></font>
<br>
<br>
Added support for PCType PCMAT (PC based on a matvec)<br>
Added support for PCType PCHYPRE (includes PILUT, EUCLID, and BoomerAMG)<br>
Cholesky - additional info from factorization <br>
<br>
<p><font size="4"><strong><u>MAT (Matrices): <br>
<br>
</u></strong></font>
SBAIJ matmult - improve performance by optimizing communication.<br>
markdiagonal - performance optimization. <br>
SuperLU interface improved (check page 75 in the user's manual)<br>
DSCPACK interface inproved<br>
Spooles interface added<br>
<p><font size="4"><strong><u>DA (Distributed Arrays): </u></strong></font>
<p><u><strong><font size="4">VEC (Vectors): <br>
</font></strong></u>
<font size="4"><strong><u><br>
IS (Index Sets):</u></strong></font><p><font size="4"><strong><u>Draw
(Graphics):</u></strong></font>
<p> Added flag to support turning off axis resizing<br>
<p><strong><font size="4"><u>Viewers: </u></font>
<br>
</strong><br>
Allow drawing rectangles in postscript<br>
<font size="4"><strong><u><br>
System:</u></strong></font>
<p><font size="4"><strong><u>Error Handling:</u></strong></font></p>
<p><font size="4"><strong><u>Event Logging:</u></strong></font></p>
<p><font size="4"><strong><u>Fortran Interface:</u></strong></font> </p>
<p><br>
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