{"id":19,"date":"2011-05-04T15:23:35","date_gmt":"2011-05-04T18:23:35","guid":{"rendered":"http:\/\/www.amuncode.org\/?page_id=19"},"modified":"2026-01-04T17:42:09","modified_gmt":"2026-01-04T20:42:09","slug":"documentation","status":"publish","type":"page","link":"https:\/\/blog.amuncode.org\/?page_id=19","title":{"rendered":"Documentation"},"content":{"rendered":"<p><strong data-start=\"348\" data-end=\"359\">GODUNOV<\/strong> and <strong data-start=\"364\" data-end=\"372\">AMUN<\/strong> are numerical codes developed for high-resolution simulations of astrophysical flows within the fluid and magnetohydrodynamic (MHD) approximations. Both codes are designed to address a broad range of problems in computational astrophysics, including compressible hydrodynamics, magnetized plasmas, relativistic flows, and turbulence. They are based on modern finite-volume, Godunov-type numerical schemes, ensuring robust shock capturing and accurate treatment of discontinuities on structured meshes.<\/p>\n<p>The <strong data-start=\"880\" data-end=\"891\">GODUNOV<\/strong> code is a mature and well-tested framework for simulations on uniform grids, supporting hydrodynamic and magnetohydrodynamic equations in both classical and special relativistic regimes. It provides a flexible selection of numerical methods\u2014such as different Riemann solvers, reconstruction schemes, and time integrators\u2014while maintaining a relatively simple and transparent code structure. GODUNOV is written entirely in Fortran 2003 and supports MPI parallelization, making it suitable for efficient large-scale simulations on distributed-memory systems.<\/p>\n<p>The <strong data-start=\"1454\" data-end=\"1462\">AMUN<\/strong> code represents a more recent and actively developed framework, extending the capabilities of GODUNOV toward greater flexibility, higher-order accuracy, and modern high-performance computing environments. AMUN supports both uniform and adaptive meshes, advanced high-order reconstruction methods, embedded time integrators with error control, and hybrid MPI\/OpenMP parallelism. Written in Fortran 2008, AMUN emphasizes modular design, scalability, and ease of extensibility, providing a powerful platform for current and future numerical studies in astrophysical fluid dynamics and plasma physics.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>GODUNOV and AMUN are numerical codes developed for high-resolution simulations of astrophysical flows within the fluid and magnetohydrodynamic (MHD) approximations. Both codes are designed to address a broad range of problems in computational astrophysics, including compressible hydrodynamics, magnetized plasmas, relativistic &hellip;<\/p>\n<p class=\"read-more\"><a href=\"https:\/\/blog.amuncode.org\/?page_id=19\">Read more &raquo;<\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"parent":0,"menu_order":1,"comment_status":"closed","ping_status":"closed","template":"page-without-sidebar.php","meta":{"footnotes":""},"class_list":["post-19","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/blog.amuncode.org\/index.php?rest_route=\/wp\/v2\/pages\/19","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.amuncode.org\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/blog.amuncode.org\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/blog.amuncode.org\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.amuncode.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=19"}],"version-history":[{"count":16,"href":"https:\/\/blog.amuncode.org\/index.php?rest_route=\/wp\/v2\/pages\/19\/revisions"}],"predecessor-version":[{"id":265,"href":"https:\/\/blog.amuncode.org\/index.php?rest_route=\/wp\/v2\/pages\/19\/revisions\/265"}],"wp:attachment":[{"href":"https:\/\/blog.amuncode.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=19"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}