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GNU Compiler: Difference between revisions

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(added gcc basics and special for the Cray XT5m)
(Update module load command to reflect actual module system setup)
 
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| description = The '''GNU Compiler Collection''' (usually shortened to GCC) is a compiler system produced by the GNU Project supporting various programming languages. GCC is a key component of the GNU toolchain. As well as being the official compiler of the GNU operating system, GCC has been adopted as the standard compiler by most other modern Unix-like computer operating systems, including GNU/Linux, the BSD family and Mac OS X.
| description = The '''GNU Compiler Collection''' (usually shortened to GCC) is a compiler system produced by the GNU Project supporting various programming languages. GCC is a key component of the GNU toolchain. As well as being the official compiler of the GNU operating system, GCC has been adopted as the standard compiler by most other modern Unix-like computer operating systems, including GNU/Linux, the BSD family and Mac OS X.
| developer              = GNU Project
| developer              = GNU Project
| available on      = [[NEC Nehalem Cluster]]
| available on      =  
| category                  = [[:Category:Compiler | Compiler]]
| category                  = [[:Category:Compiler | Compiler]]
| license                = GNU General Public License (version 3 or later)
| license                = GNU General Public License (version 3 or later)
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On most platforms you will find additional versions beside the one provided by the base system. You can switch to an additional version with the module command
On most platforms you will find additional versions beside the one provided by the base system. You can switch to an additional version with the module command
{{Command|command =
{{Command|command =
module load compiler/gcc
module load gcc
}}
}}


=== XT5m special ===
To use the GNU compilers on the [[Cray XT5m]] you have to switch the environment
{{Command|command =
module load ProgEnv-gnu
}}
{{Warning|text =
{{Warning|text =
Do not use the regular GNU compiler commands on the XT5m. Instead call the compilers via <tt>cc</tt>, <tt>CC</tt> and <tt>ftn</tt> after loading the environment.
Do not use the <tt>-march=native</tt>, <tt>-mcpu=native</tt> or <tt>-mtune=native</tt> options as the frontend nodes are a different architecture than the compute nodes and you will lose performance!
}}
}}



Latest revision as of 21:53, 21 October 2022

The GNU Compiler Collection (usually shortened to GCC) is a compiler system produced by the GNU Project supporting various programming languages. GCC is a key component of the GNU toolchain. As well as being the official compiler of the GNU operating system, GCC has been adopted as the standard compiler by most other modern Unix-like computer operating systems, including GNU/Linux, the BSD family and Mac OS X.
Developer: GNU Project
Platforms:
Category: Compiler
License: GNU General Public License (version 3 or later)
Website: GCC homepage


General info

On most Systems the GNU compilers are available per default in form of the system compiler. To find out the default version execute

gcc --version


On most platforms you will find additional versions beside the one provided by the base system. You can switch to an additional version with the module command

module load gcc


Warning: Do not use the -march=native, -mcpu=native or -mtune=native options as the frontend nodes are a different architecture than the compute nodes and you will lose performance!


See also

External links