Compilers
Table of Contents
Overview
There are lots of compilers. Some are actually installed on the cluster.
| Compiler | C | C++ | Fortran | OpenMP | Notes |
|---|---|---|---|---|---|
| clang/LLVM | clang | clang++ | none | ||
| GCC 4.9 | gcc-4.9 | g++-4.9 | 2.5 | ||
| GCC 5.1 | gcc-5.1 | g++-5.1 | 2.5 | ||
| Imtel C Compiler 12 | icc | icc | 2.5 | evaluation license -> 10/20/2011 | |
| Intel Fortran Compiler 12 | ifc | 2.5 | evaluation license -> 10/20/2011 |
GNU Compiler Collection
clang/LLVM
Intel C/Fortran Compiler
Set the environment variables to run the intel compiler
source /opt/intel/bin/compilervars.sh intel64
needs packages: jre
LLVM/clang
The source code can be obtained using the git repository. For the rest of the build follow the generic instructions.
cd /usr/src/llvm
git clone http://llvm.org/git/llvm.git
| configure switch used | description |
|---|---|
--prefix=/opt |
installation prefix |
--enable-optimizations |
General software installation instructions
To install software from source make sure to check the respective build instructions (if there are any) for software specific hints. First, choose and fetch the source code to the directory /usr/src/SOFTWARE. There are several common build systems:
- automake (file "configure" exists and is executable)
- cmake (file "cmakelists" or similar exists)
Automake
It is sensible to build the software in a separate directory outside of the source tree, eg. /usr/src/SOFTWARE/objdir.
The configure script usually takes options that describe the target installation as well as the desired feature-set of the software.
The following example is for the GNU Compiler Collection (GCC)
cd /usr/src/gcc # download sources (eg from ftp://ftp.fu-berlin.de/unix/languages/gcc/releases/) wget ftp://ftp.fu-berlin.de/unix/languages/gcc/releases/gcc-x.y.z.tar.bz2 # untar release tarball to /usr/src/gcc/gcc-x.y.z tar -xf gcc-x.y.z.tar.bz2 # empty (from previous builds), recreate and switch to the build directory rm -r /usr/src/gcc/objdir ; mkdir /usr/src/gcc/objdir ; cd /usr/src/gcc/objdir # configure the build /usr/src/gcc/gcc-x.y.z/configure --prefix=/opt --program-suffix=-x.y # compile nice make -j 16 # install make install