= PALM - A '''PA'''rallelized '''L'''arge-Eddy Simulation '''M'''odel for Atmospheric and Oceanic Flows = [[TracNav(toc)]] PALM is a large-eddy simulation (LES) model for atmospheric and oceanic flows which is especially designed for performing on massively parallel computer architectures. PALM is free software. It can be redistributed and/or modified under the terms of the GNU General Public License (v3). {{{ #!div style="align:'left'; width: 300px; border: 0px solid; float:right" [[Image(htdocs:gallery/palm_logo_200px.jpg,nolink)]] }}} '''Some of PALM's highlights are''' * excellent scaling, so far tested up to 32,000 cores * online data analysis (during model runs) in order to avoid I/O bottlenecks * topography realized on cartesian grid (allows for steep topography) * non-cyclic horizontal boundary conditions including turbulent inflow * code can be switched to ocean version with salinity equation and equation of state for seawater * embedded parallelized Lagrangian particle model for various applications (footprint calculation, simulation of cloud droplet growth, visualization, etc.) * interface which allows users to plug in their own code extensions without modifying the default code * advanced shell scripts for installing and running the code in interactive and batch mode are available * code is permanently maintained and improved by the PALM group and other users; code management is based on subversion ---- '''PALM news''' {{{#!comment ############################################# ## NEWS RULES: This section containes only ## ## news, that are not older than 1 year ## ############################################# }}} '''[ 2017-05-30 ]''' ''New topography and surface-modeling concept implemented ([[wiki:doc/tec/changelog|details]]).''\\ '''[ 2017-02-10 ]''' ''PALM celebrates 10 years of code development using SVN.''\\ '''[ 2016-10-26 ]''' ''PALM now features an anelastic approximation for its model equations. This paves the way for the simulation of deep convective clouds with PALM ([[wiki:doc/app/inipar#approximation|details]])''\\ '''[ 2016-07-15 ]''' ''This years PALM seminar is held at Institute of Meteorology and Climatology, Leibniz Universität Hannover, 10th - 14th October ([wiki:seminar_2016 further information])''\\ '''[ 2016-07-07 ]''' ''A module for virtual flight measurements is now available ([[wiki:doc/app/flpar|details]])''\\ '''[ 2015-10-08 ]''' ''A new Doxygen based PALM source code documentation is now available ([[wiki:doc/tec/doxygen|details]])''\\ '''[ 2015-09-16 ]''' ''The PALM homepage and the subversion server are now accessible via the https-protocol''\\ '''[ 2015-08-13 ]''' ''Technical description paper of PALM 4.0 is published in Geoscienfic Model Development ([http://www.geosci-model-dev.net/8/2515/2015/gmd-8-2515-2015.html details])''\\ ---- '''PALM users world map'''[[FootNote(The world map shows groups that work with PALM and that have published at least one paper. You want to be listed in the map? Let [mailto:maronga@muk.uni-hannover.de us] know!)]] {{{ #!html
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