From: Wolfgang Bangerth <bangerth@colostate.edu>
Date: Wed, 13 May 2020 23:08:18 +0000 (-0600)
Subject: Add announcement file.
X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a9939d8586f78280c40ed77b5e9013018b9e0ee0;p=release-papers.git

Add announcement file.
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+Version 9.2.0 of deal.II, the object-oriented finite element library awarded the
+J. H. Wilkinson Prize for Numerical Software, has been released. It is
+available for free under an Open Source license from the deal.II homepage at
+
+                   https://www.dealii.org/
+
+The major changes of this release are:
+
+  - Six new tutorial programs: step-47 solves the biharmonic equation;
+    step-50 demonstrates algebraic and geometric multigrid methods for
+    large, parallel computations on adaptively refined meshes, and
+    compares matrix-based and matrix-free implementations; step-58
+    solves the nonlinear Schroedinger equation; step-65 illustrates
+    working with complex geometries and curved domains; step-67 and
+    step-69 implementing different approaches for the Euler equations
+    in compressible gas dynamics.
+
+  - Substantial improvements to the Python interfaces, including
+    Jupyter versions of the step-49 and step-53 tutorial program.
+
+  - A new triangulation class (parallel::fullydistributed::Triangulation)
+    that completely distributes a triangulation, rather than keeping
+    the coarse mesh available on all processors.
+
+  - The DataOut and related classes now fully support outputting
+    complex-valued solution vectors, including complex-valued vector
+    and tensor fields.
+
+  - A number of fixes throughout the library for problems with more
+    than 2^32 (=4 billion) unknowns.
+
+  - Improvements to the support for particle based methods as well as
+    to parallel hp-adaptive finite element methods.
+
+  - More than 320 other new features, improvements, and bugfixes.
+
+For more information see
+  - the preprint at https://www.dealii.org/deal92-preprint.pdf
+  - the list of changes at
+    https://www.dealii.org/developer/doxygen/deal.II/changes_between_9_1_1_and_9_2_0.html
+
+The main features of deal.II are:
+  - Extensive documentation and 63 fully-functional example programs
+  - Support for dimension-independent programming
+  - Locally refined adaptive meshes
+  - Multigrid support
+  - A zoo of different finite elements
+  - Fast linear algebra
+  - Built-in support for shared memory and distributed parallel computing,
+    scaling from laptops to clusters with 100,000+ processor cores
+  - Interfaces to Trilinos, PETSc, METIS, UMFPACK and other external software
+  - Output for a wide variety of visualization platforms.
+
+Martin Kronbichler and Matthias Maier,
+on behalf of the deal.II developer team and many contributors.