= 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)]] }}} '''Some of PALM's highlights are''' * excellent scaling, so far tested up to 32000 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 ## ############################################# }}} '''[ 2014/10/21 ]''' ''New code structure for the embedded plant canopy model ([[/wiki/doc/app/canpar#CanopyParameters|details]]) ''\\ '''[ 2014/07/23 ]''' ''The PALM group has contributed a visualization to the [[http://www.vapor.ucar.edu/gallery/movies|VAPOR Gallery]] ''\\ '''[ 2014/07/14 ]''' ''The PALM group/IMUK joined the Center for Wind Energy Research ([[http://www.forwind.de/forwind/index.php?article_id=1&clang=1|ForWind]]) ''\\ '''[ 2014/07/07 ]''' ''The PALM group has now its own [[https://www.youtube.com/user/palmhannover|Youtube Cannel]] and a [[gallery/movies/city#macau|new visualization]] has been added to the [[gallery/movies|Gallery]]''\\ '''[ 2014/03/19 ]''' ''PALM is now part of the SPEC ACCEL benchmark test for intensive parallel applications running under OpenACC ([[http://www.spec.org/accel/|more]]) ''\\ '''[ 2013/10/30 ]''' ''Nudging technique implemented ([[doc/tec/nudging|see here]])''\\ ---- '''PALM users world map''' {{{ #!html
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