Difference between revisions of "GNU Compiler 2016"
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The GNU Compilers are available as module and as part of the operating system. | The GNU Compilers are available as module and as part of the operating system. The compiler of the operating system is GNU 4.8.5. <br/> | ||
module av | To see the other available versions of the GNU Compilers type | ||
[abcd1234@hpcl001]$ module av GCC/ | |||
which currently shows | which currently shows | ||
---------- /cm/local/modulefiles ---------- | ---------------- /cm/local/modulefiles ---------------- | ||
gcc/6.1.0 | '''gcc/6.1.0''' | ||
---------- /cm/shared/uniol/modules/compiler ---------- | ---------- /cm/shared/uniol/modules/compiler ---------- | ||
GCC/4.9.4-2.25 GCC/5.4.0-2.26 GCC/6.2.0-2.27 (D) | '''GCC/4.9.4-2.25''' '''GCC/5.4.0-2.26''' '''GCC/6.2.0-2.27''' (D) | ||
This output depends on the currently loaded environment. If you change to the newer environment, the output will differ: | |||
module load hpc-env/8.3 # change the environment | |||
module av GCC/ | |||
----------------------------------------- /cm/local/modulefiles ----------------------------------------- | |||
'''gcc/6.1.0''' | |||
--------------------------------- /cm/shared/uniol/modules/8.3/compiler --------------------------------- | |||
'''GCC/8.3.0''' (L) | |||
To load the module of your choice type e.g. | To load the module of your choice type e.g. | ||
module load | [abcd1234@hpcl001]$ module load GCC/4.9.4-2.25 | ||
The commands for the available languages are | [abcd1234@hpcl001]$ module list | ||
Currently loaded modules: ... GCC/4.9.4-2.25 | |||
The commands for the available languages are: | |||
{| style="background-color:#eeeeff;" cellpadding="10" border="1" cellspacing="0" | {| style="background-color:#eeeeff;" cellpadding="10" border="1" cellspacing="0" | ||
|- style="background-color:#ddddff;" | |- style="background-color:#ddddff;" | ||
| Line 32: | Line 45: | ||
* performance of resulting C++ usually good | * performance of resulting C++ usually good | ||
* most open source software tested with GNU | * most open source software tested with GNU | ||
== Disadvantages == | == Disadvantages == | ||
* optimization of code is moderate: performance of C, Fortran code can be moderate | * optimization of code is moderate: performance of C, Fortran code can be moderate | ||
Latest revision as of 14:26, 4 August 2020
The GNU Compilers are available as module and as part of the operating system. The compiler of the operating system is GNU 4.8.5.
To see the other available versions of the GNU Compilers type
[abcd1234@hpcl001]$ module av GCC/
which currently shows
---------------- /cm/local/modulefiles ---------------- gcc/6.1.0 ---------- /cm/shared/uniol/modules/compiler ---------- GCC/4.9.4-2.25 GCC/5.4.0-2.26 GCC/6.2.0-2.27 (D)
This output depends on the currently loaded environment. If you change to the newer environment, the output will differ:
module load hpc-env/8.3 # change the environment module av GCC/ ----------------------------------------- /cm/local/modulefiles ----------------------------------------- gcc/6.1.0
--------------------------------- /cm/shared/uniol/modules/8.3/compiler --------------------------------- GCC/8.3.0 (L)
To load the module of your choice type e.g.
[abcd1234@hpcl001]$ module load GCC/4.9.4-2.25 [abcd1234@hpcl001]$ module list Currently loaded modules: ... GCC/4.9.4-2.25
The commands for the available languages are:
| Name | Description |
|---|---|
| gcc | C compiler |
| g++ | C++ compiler |
| gfortran | Fortran compiler |
Advantages
- high availability, open source (free)
- new standards implemented
- fast compilation
- performance of resulting C++ usually good
- most open source software tested with GNU
Disadvantages
- optimization of code is moderate: performance of C, Fortran code can be moderate
