---------------------------------------------------------------------------- Portable, Extensible Toolkit for Scientific Computation (PETSc) ---------------------------------------------------------------------------- http://www.mcs.anl.gov/petsc We are pleased to announce the release of the PETSc 2.3.1 parallel software libraries for the implicit solution of PDEs and related problems. There are no MAJOR interface changes, the minor changes are listed at http://www-unix.mcs.anl.gov/petsc/petsc-as/documentation/changes/231.html please check these changes before compiling your codes. You can download from http://www-unix.mcs.anl.gov/petsc/petsc-as/download/index.html and and the installataion instructions are at http://www-unix.mcs.anl.gov/petsc/petsc-as/documentation/installation.html As always, please send bug reports, questions, and requests for new features to [email protected]. Thanks for your continued support. The PETSc developers, Satish, Matt, Victor, Barry and Hong