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<title>Documentation: Changes: 2.1.5</title>
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<div id="version" align=right><b>petsc-3.4.2 2013-07-02</b></div>
<h1>Documentation: Changes: 2.1.5</h1>
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<h2><a name="CHANGES">CHANGES in PETSc 2.1.5</a></h2>
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<h4>General:</h4>
<ul>
<li>Replace autoconf-configure with python-configure. Tested on Linux, IRIX, Alpha-OSF, Mac OSX</li>
<li>Added PETSc interface to UMFPACK (Seq)</li>
<li>
SuperLU & SuperLU_DIST insterface is updated to the latest
download versions. Complex version of these packages are now supported.
</li>
<li>Added Support for QR factorization into PETSc/SPOOLES interface (Seq)</li>
<li>
Added Support for installing PETSc with TAU instrumentation package.
Please check config files in bmake/linux_tau.
</li>
<li>Added support for Cray SX-6 vector machine</li>
</ul>
<h4>Vec:</h4>
<ul>
<li>Added VecMaxPointwiseDivide()</li>
</ul>
<h4>Mat:</h4>
<ul>
<li>Added MatTranspose() for SBAIJ</li>
<li>Added MatConvert_SeqAIJ_SeqSBAIJ()</li>
<li>Added MatGetInertia()</li>
<li>Added MatAXPY() to SBAIJ and BAIJ mat formats</li>
<li>Added MatSetValuesBlocked() for SEQSBAIJ and MPISBAIJ formats</li>
<li>Improved single precision SSE factorization routines</li>
<li>Added scalable parallel binary viewer for MPIAIJ matrix</li>
</ul>
<h4>SLES:</h4>
<ul>
<li>Added ICC preconditioner support for MATSEQAIJ</li>
<li>PCSetUp() now defaults to ICC for SBAIJ</li>
<li>BoomerAMG preconditioner now defaults to zero initial guess</li>
<li>Added GetTotalBlocks() and GetLocalBlocks() to PCBJacobi</li>
<li>
Improved LU and ILU damping for AIJ matrix type - New
factorization damping policy (check manual)
</li>
</ul>
<h4>SNES:</h4>
<h4>TS:</h4>
<ul>
<li>Added TSGetDuration()</li>
</ul>
<h4>Other:</h4>
<ul>
<li>Turned off logging of objects and actions by default - saves memory usage</li>
<li>Reduce memory usage for DA and SDA objects</li>
<li>Support generation of SBAIJ matrices from DA</li>
</ul>
<h4>Fortran:</h4>
<ul>
<li>Added f90 support for intel compilers on linux and linux64</li>
</ul>
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