https://ww8central.ww.uni-erlangen.de/ 2026-05-17T19:56:59+00:00 https://ww8central.ww.uni-erlangen.de/ https://ww8central.ww.uni-erlangen.de/_media/wiki/logo.png text/html 2018-06-10T14:20:37+00:00 Anonymous (anonymous@undisclosed.example.com) https://ww8central.ww.uni-erlangen.de/programming/atom?rev=1528640437&do=diff Atom.io Universal editor for programming. Addons: minimap project-manager C++ Addons autocomplete-clang or atom-clang Python Addons autocomplete-python ide-python To install the python-language-server: pip install --user python-language-server[all] text/html 2020-07-23T11:24:31+00:00 Anonymous (anonymous@undisclosed.example.com) https://ww8central.ww.uni-erlangen.de/programming/data_management?rev=1595503471&do=diff Data Management also take a look in sciencedata management. Compressing Data hdf5 and in memory compression <https://www.hdfgroup.org/2018/06/hdf5-or-how-i-learned-to-love-data-compression-and-partial-i-o/> text/html 2014-08-12T14:37:38+00:00 Anonymous (anonymous@undisclosed.example.com) https://ww8central.ww.uni-erlangen.de/programming/debuging?rev=1407854258&do=diff Debugging Valgrind valgrind --track-origins=yes ./executable gdb Debug with program with parameters. e.g. ./executable -p parameters.inp gdb --args ./executable -p parameters.inp text/html 2017-06-23T12:35:26+00:00 Anonymous (anonymous@undisclosed.example.com) https://ww8central.ww.uni-erlangen.de/programming/fortran?rev=1498221326&do=diff Fortran Fortran ABI Mismatch The two most popular open source fortran compilers are g77 and gfortran. Unfortunately, they are not ABI compatible, which means that concretely you should avoid mixing libraries built with one with another. You can check which fortran compiler was used by looking at the dependencies a library was build with: text/html 2016-08-24T08:28:16+00:00 Anonymous (anonymous@undisclosed.example.com) https://ww8central.ww.uni-erlangen.de/programming/introduction_to_parallel_programming?rev=1472027296&do=diff Parallel programming Basics to diverent parallel programming Models and Glossary. Tutorials, Lectures and Practicals with Youtube sessions from the ARCHER Sommer School. directives based data parallel model (pragma based): Serial code is made parallel by adding directives (which appear as comments in the serial code) that tell the compiler how to distribute data and work across the several processors and compute clients. text/html 2020-02-26T17:39:51+00:00 Anonymous (anonymous@undisclosed.example.com) https://ww8central.ww.uni-erlangen.de/programming/mpi?rev=1582738791&do=diff A specification for interprocess communication defined by the MPI-Forum. MPI There are no test or default implementations to guarantee the compatibility of different MPI-implementations. The most common implementations are OpenMPI and MPICH, both incompatible to each other. text/html 2015-01-26T10:14:53+00:00 Anonymous (anonymous@undisclosed.example.com) https://ww8central.ww.uni-erlangen.de/programming/openmp?rev=1422267293&do=diff OpenMP openmp index Actually in use * OpenMP v3.1 (Feb. 2011) implemented in GCC 4.7 (Aug. 2011) * OpenMP v3.0 (May 2008) implemented in GCC 4.4 (June 2008) * OpenMP v2.5 implemented in GCC 4.2 (March 2006) Future versions * OpenMP v4.0 (Oct. 2013) implemented in GCC 4.9rc text/html 2018-05-16T05:39:03+00:00 Anonymous (anonymous@undisclosed.example.com) https://ww8central.ww.uni-erlangen.de/programming/optimization?rev=1526449143&do=diff Optimization C++ Tools Interesting tool to count cpu cycles and see the resulting assembly code with diverent compilers and optimization levels. <http://gcc.godbolt.org> Intel Compilers Compiler Auto Vectorization The Intel compiler has several options for vectorization - text/html 2019-10-09T08:17:08+00:00 Anonymous (anonymous@undisclosed.example.com) https://ww8central.ww.uni-erlangen.de/programming/python?rev=1570609028&do=diff Python Website www.python.org Standard library Python 2 Python 3 First Steps * Use a Python Virtual environment If you are programming something more complex, use some python-packages not available in a simple python-environment, you should create a virtual-environment and store the used python-packages in a