Difference between revisions of "Programming Languages"

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(Books an Links)
(Books an Links)
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** Brian W. Kernighan, Dennis M. Ritchie: The C Programming Language - Prentice Hall; 2 edition (April 1, 1988). ISBN-13: 978-0131103627  
 
** Brian W. Kernighan, Dennis M. Ritchie: The C Programming Language - Prentice Hall; 2 edition (April 1, 1988). ISBN-13: 978-0131103627  
 
* C++
 
* C++
 +
** Ulrich Breymann: [http://www.cppbuch.de/ Der C++ Programmierer] - Hanser Verlag - 2017. ISBN-13: 978-3446448841 (in German)
 
** [http://cppreference.com/ online C++ reference]
 
** [http://cppreference.com/ online C++ reference]
 
* Fortran
 
* Fortran
 
** Stephen Chapman: Fortran for Scientists and Engineers -  McGraw-Hill Education. This book was ''the'' Fortran book for many years; the actual 4ed - 2017 seem to be overprised.
 
** Stephen Chapman: Fortran for Scientists and Engineers -  McGraw-Hill Education. This book was ''the'' Fortran book for many years; the actual 4ed - 2017 seem to be overprised.
 
** Michael Metcalf, John Reid, Malcolm Cohen: Modern Fortran Explained: Incorporating Fortran 2018 -  ISBN-13: 978-0198811893. Latest edition of Fortran books by those autors.
 
** Michael Metcalf, John Reid, Malcolm Cohen: Modern Fortran Explained: Incorporating Fortran 2018 -  ISBN-13: 978-0198811893. Latest edition of Fortran books by those autors.
** Walter S. Brainerd: Guide to Fortran 2008 Programming - 2015 - ISBN-13: 978-1447167587. Also available in olver editions for older fortran standards.
+
** Walter S. Brainerd: Guide to Fortran 2008 Programming - 2015 - ISBN-13: 978-1447167587. Also available in older editions for older Fortran standards.
 
** [http://gcc.gnu.org/wiki/GFortranStandards Fortran Standards Documents]
 
** [http://gcc.gnu.org/wiki/GFortranStandards Fortran Standards Documents]

Revision as of 16:22, 26 May 2020


Among the decades, very many programming languages has been evolved. We list some most widely used in the context of HPC here.

Low-Level programming languages

  • Machine code: That are 10001001011110 your computer can understand. You likely not.
  • Assembler: human-readable (to somehow extent; many says 'for special humans'), but still very low-level. Allows the programmer to get the very last possible performance crumbs from the hardware, but in turn is hardware-dependent and very tedious to program. Highly-tuned libraries often contain ASM parts, often making this software less-portable. You should not start at assembler level when programming an application.

High-level programming languages

... are readable by humans. The source code is a text file, to be translated to an executable file by a compiler (we do not want to introduce the definition bush about compiled and interpreted languages here). In addition to human-readablity these programs are portable, you just need to recompile your code on another hardware using a compiler understanding the same language. Note that being standard-compliant for both the code and the compiler greatly enhance the chances of porting to be a smooth, enjoyable procedure.

  • Fortran, the 1st wide-used high-level programming, used in HPC since 1954 and will likely be used for a long time, as there are still many Fortran projects and tons of libraries-canot-give-up around. Fortran handles multi-dimensional arrays very comfortably. Due to some restrictions in the memory handling the compiler has more optimisation freedom leading to quite well-performing code out of the box, usually.
  • C and C++ are related languages with the second being object-oriented, with a lot of programming comfort. “C programs are the fastest” is usually not true. As C has very few syntax limitations, this often gives the compiler a hard time optimizing. The passing of pointers is in most cases the biggest handicap. You can rid this, but need to take care.
  • JAVA is a widely used programming language, but due to performance issues in most cases not suited for true high performance computing.

Script / interpreted languages

  • Shell helps you to script many calls to a single program. The batch scripts are programmed in one of Shell languages.
  • Python evolves to very powerful scientific computing language nowadays, especially for those prepared to abadon MATLAB from the compute pipeline.
  • Perl is another scripting language with very powerful handling of regular expressions.
  • MATLAB is a powerful numerical computing environment with same-called programming language.

Books an Links

  • C
    • Brian W. Kernighan, Dennis M. Ritchie: Programmieren in C - Carl Hanser Verlag - 1990. ISBN-13: 978-3446154971 (in German)
    • Brian W. Kernighan, Dennis M. Ritchie: The C Programming Language - Prentice Hall; 2 edition (April 1, 1988). ISBN-13: 978-0131103627
  • C++
  • Fortran
    • Stephen Chapman: Fortran for Scientists and Engineers - McGraw-Hill Education. This book was the Fortran book for many years; the actual 4ed - 2017 seem to be overprised.
    • Michael Metcalf, John Reid, Malcolm Cohen: Modern Fortran Explained: Incorporating Fortran 2018 - ISBN-13: 978-0198811893. Latest edition of Fortran books by those autors.
    • Walter S. Brainerd: Guide to Fortran 2008 Programming - 2015 - ISBN-13: 978-1447167587. Also available in older editions for older Fortran standards.
    • Fortran Standards Documents