C/C++ (GCC: GNU Compiler Collection)
GCC version: status of support for C and C++ language standards
The GCC versions and the conforming language specifications of the default state are as follows. (You can change the standard you are compliant with by adding options. For more information, refer to the manuals for each version).
Reference
About GCC versions for CentOS 7
For CentOS 7 systems of the NIG supercomputer
- The rpm package included in CentOS 7 is GCC ver.4.8. series. Ver. 4.8 is an old version, so it is recommended to install a newer version. You can switch to ver. 9 as a newer version, so just install and use ver. 9.
- GCC ver. 8 and ver. 9 are provided using Environmentl modules supplied with Bright Cluster Manager (BCM).
- BCM is a system for deploying operating systems and other software to individual computers composing a computer cluster.BCM official page.
- For an explanation of Environmental modules itself, see the page User Guide => Software => Environmental Modules.
- If you would like to use others, you can install GCC and change the GCC version using the spack package manager. In this case, it will take a little longer since GCC is compiled from source code.
- For an explanation of spack itself, see the page User Guide => software => spack.
How to switch GCC versions for Ubuntu Linux
- The deb package included in Ubuntu Linux 22.04 is GCC 12 series. If you do not need to specify a version, use GCC 12 series.
- If you would like to specify a version, you can install GCC and change the GCC version using the spack package manager. In this case, it will take a little longer since GCC is compiled from source code.
- For an explanation of spack itself, see the page User Guide => software => spack.
Loading GCC with Environmental Modules
- Check which version of GCC is currently available in your environment.
$ which gcc
/usr/bin/gcc
$ gcc --version
gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-44)
Copyright (C) 2015 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- Find the available GCCs in Environmental modules using the
module availcommand.
$ module avail
-------------------------------------------------------------------------- /cm/local/modulefiles --------------------------------------------------------------------------
apptainer/1.1.0 gcc/9.2.0 java/11.0.3 module-info r/3.5.2 singularity/3.2.0 singularity/3.8.7
cluster-tools/8.2 git/2.26.2 java/14.0.1 null ruby/1.9.3 singularity/3.3.0 singularity/3.10.2(default)
cmd ipmitool/1.8.18 java/hotspot-8u252-b09 openldap ruby/2.6.0 singularity/3.4.1
dot java/1.6.0_45 java/openj9-8u252-b09 openmpi/mlnx/gcc/64/4.0.3rc4 ruby/2.6.5 singularity/3.5.2
freeipmi/1.6.2 java/1.8.0_45 lua/5.3.5 python/3.7.2 shared singularity/3.7.1
gcc/8.2.0 java/1.8.0_202 module-git python2 singularity/2.6.1 singularity/3.8.3
-
- On the NIG supercomputer, you will find
gcc/9.2.0andgcc/8.2.0.
- Use the
module loadcommand to load and usegcc.
$ module load gcc/9.2.0
$ which gcc
/opt/pkg/gcc/9.2.0/bin/gcc
$ gcc --version
gcc (GCC) 9.2.0
Copyright (C) 2019 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- To undo, use the
module unloadcommand.
$ module unload gcc/9.2.0
$ which gcc
/usr/bin/gcc
$ gcc --version
gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-44)
Copyright (C) 2015 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
Installing GCC with Spack
1, Check which version of GCC is currently available in your environment.
$ which gcc
/usr/bin/gcc
$ gcc --version
gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-44)
Copyright (C) 2015 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- Check the available GCC versions and compilation options with the
spack infocommand.
$ spack info gcc
AutotoolsPackage: gcc
Description:
The GNU Compiler Collection includes front ends for C, C++, Objective-C,
Fortran, Ada, and Go, as well as libraries for these languages.
Homepage: https://gcc.gnu.org
Preferred version:
13.1.0 https://ftpmirror.gnu.org/gcc/gcc-13.1.0/gcc-13.1.0.tar.xz
Safe versions:
master [git] git://gcc.gnu.org/git/gcc.git on branch master
13.1.0 https://ftpmirror.gnu.org/gcc/gcc-13.1.0/gcc-13.1.0.tar.xz
12.3.0 https://ftpmirror.gnu.org/gcc/gcc-12.3.0/gcc-12.3.0.tar.xz
12.2.0 https://ftpmirror.gnu.org/gcc/gcc-12.2.0/gcc-12.2.0.tar.xz
12.1.0 https://ftpmirror.gnu.org/gcc/gcc-12.1.0/gcc-12.1.0.tar.xz
11.3.0 https://ftpmirror.gnu.org/gcc/gcc-11.3.0/gcc-11.3.0.tar.xz
11.2.0 https://ftpmirror.gnu.org/gcc/gcc-11.2.0/gcc-11.2.0.tar.xz
11.1.0 https://ftpmirror.gnu.org/gcc/gcc-11.1.0/gcc-11.1.0.tar.xz
10.4.0 https://ftpmirror.gnu.org/gcc/gcc-10.4.0/gcc-10.4.0.tar.xz
10.3.0 https://ftpmirror.gnu.org/gcc/gcc-10.3.0/gcc-10.3.0.tar.xz
10.2.0 https://ftpmirror.gnu.org/gcc/gcc-10.2.0/gcc-10.2.0.tar.xz
10.1.0 https://ftpmirror.gnu.org/gcc/gcc-10.1.0/gcc-10.1.0.tar.xz
9.5.0 https://ftpmirror.gnu.org/gcc/gcc-9.5.0/gcc-9.5.0.tar.xz
9.4.0 https://ftpmirror.gnu.org/gcc/gcc-9.4.0/gcc-9.4.0.tar.xz
9.3.0 https://ftpmirror.gnu.org/gcc/gcc-9.3.0/gcc-9.3.0.tar.xz
9.2.0 https://ftpmirror.gnu.org/gcc/gcc-9.2.0/gcc-9.2.0.tar.xz
9.1.0 https://ftpmirror.gnu.org/gcc/gcc-9.1.0/gcc-9.1.0.tar.xz
8.5.0 https://ftpmirror.gnu.org/gcc/gcc-8.5.0/gcc-8.5.0.tar.xz
8.5.0 https://ftpmirror.gnu.org/gcc/gcc-8.5.0/gcc-8.5.0.tar.xz
8.4.0 https://ftpmirror.gnu.org/gcc/gcc-8.4.0/gcc-8.4.0.tar.xz
8.3.0 https://ftpmirror.gnu.org/gcc/gcc-8.3.0/gcc-8.3.0.tar.xz
8.2.0 https://ftpmirror.gnu.org/gcc/gcc-8.2.0/gcc-8.2.0.tar.xz
8.1.0 https://ftpmirror.gnu.org/gcc/gcc-8.1.0/gcc-8.1.0.tar.xz
7.5.0 https://ftpmirror.gnu.org/gcc/gcc-7.5.0/gcc-7.5.0.tar.xz
7.4.0 https://ftpmirror.gnu.org/gcc/gcc-7.4.0/gcc-7.4.0.tar.xz
7.3.0 https://ftpmirror.gnu.org/gcc/gcc-7.3.0/gcc-7.3.0.tar.xz
7.2.0 https://ftpmirror.gnu.org/gcc/gcc-7.2.0/gcc-7.2.0.tar.xz
7.1.0 https://ftpmirror.gnu.org/gcc/gcc-7.1.0/gcc-7.1.0.tar.bz2
6.5.0 https://ftpmirror.gnu.org/gcc/gcc-6.5.0/gcc-6.5.0.tar.bz2
6.4.0 https://ftpmirror.gnu.org/gcc/gcc-6.4.0/gcc-6.4.0.tar.bz2
6.3.0 https://ftpmirror.gnu.org/gcc/gcc-6.3.0/gcc-6.3.0.tar.bz2
6.2.0 https://ftpmirror.gnu.org/gcc/gcc-6.2.0/gcc-6.2.0.tar.bz2
6.1.0 https://ftpmirror.gnu.org/gcc/gcc-6.1.0/gcc-6.1.0.tar.bz2
5.5.0 https://ftpmirror.gnu.org/gcc/gcc-5.5.0/gcc-5.5.0.tar.bz2
5.4.0 https://ftpmirror.gnu.org/gcc/gcc-5.4.0/gcc-5.4.0.tar.bz2
5.3.0 https://ftpmirror.gnu.org/gcc/gcc-5.3.0/gcc-5.3.0.tar.bz2
5.2.0 https://ftpmirror.gnu.org/gcc/gcc-5.2.0/gcc-5.2.0.tar.bz2
5.1.0 https://ftpmirror.gnu.org/gcc/gcc-5.1.0/gcc-5.1.0.tar.bz2
4.9.4 https://ftpmirror.gnu.org/gcc/gcc-4.9.4/gcc-4.9.4.tar.bz2
4.9.3 https://ftpmirror.gnu.org/gcc/gcc-4.9.3/gcc-4.9.3.tar.bz2
4.9.2 https://ftpmirror.gnu.org/gcc/gcc-4.9.2/gcc-4.9.2.tar.bz2
4.9.1 https://ftpmirror.gnu.org/gcc/gcc-4.9.1/gcc-4.9.1.tar.bz2
4.8.5 https://ftpmirror.gnu.org/gcc/gcc-4.8.5/gcc-4.8.5.tar.bz2
4.8.4 https://ftpmirror.gnu.org/gcc/gcc-4.8.4/gcc-4.8.4.tar.bz2
4.7.4 https://ftpmirror.gnu.org/gcc/gcc-4.7.4/gcc-4.7.4.tar.bz2
4.6.4 https://ftpmirror.gnu.org/gcc/gcc-4.6.4/gcc-4.6.4.tar.bz2
4.5.4 https://ftpmirror.gnu.org/gcc/gcc-4.5.4/gcc-4.5.4.tar.bz2
Deprecated versions:
None
Variants:
Name [Default] When Allowed values Description
=========================== ================ ==================== ===========================================================================================
binutils [off] -- on, off Build via binutils
bootstrap [on] -- on, off Enable 3-stage bootstrap
build_system [autotools] -- autotools Build systems supported by the package
build_type [RelWithDebInfo] -- Debug, Release, CMake-like build type. Debug: -O0 -g; Release: -O3; RelWithDebInfo: -O2 -g; MinSizeRel: -Os
RelWithDebInfo,
MinSizeRel
graphite [off] -- on, off Enable Graphite loop optimizations (requires ISL)
languages [c,c++,fortran] -- ada, brig, c, c++, Compilers and runtime libraries to build
d, fortran, go,
java, jit, lto,
objc, obj-c++
nvptx [off] -- on, off Target nvptx offloading to NVIDIA GPUs
piclibs [off] -- on, off Build PIC versions of libgfortran.a and libstdc++.a
profiled [off] [%gcc+bootstrap] on, off Use Profile Guided Optimization
strip [off] -- on, off Strip executables to reduce installation size
Build Dependencies:
autoconf automake binutils cuda diffutils flex gawk gmake gmp gnat gnuconfig iconv isl libtool m4 mpc mpfr perl texinfo zip zlib zstd
Link Dependencies:
binutils cuda gmp gnat iconv isl mpc mpfr zlib zstd
Run Dependencies:
binutils
- Compile and install gcc itself with the
spack installcommand.
The version can be omitted if it matches the Preferred version.
spack install -j 8 gcc@13.1.0 binutils=True bootstrap=True
- In this example, after compiling spack's gcc (ver. 13.1.0) using the gcc (ver. 4.8.5) currently used in your environment in 1, the compiled spack's gcc ver. 13.0.1 is used to Compiled. (
bootstrap=True)
If you would like to install other versions, specify the version.
spack install -j 8 gcc@12.3.0 binutils=True bootstrap=True
- Load and make available the installed gcc with the
spack loadcommand.
You can find available versions that have been the spack install command with the spack find command.
$ spack find gcc
-- linux-centos7-x86_64_v3 / gcc@4.8.5 --------------------------
gcc@13.1.0
==> 1 installed package
To use GCC that has been installed with spack, execute the spack load command.
$ spack load gcc@13.1.0
$ gcc --version
gcc (Spack GCC) 13.1.0
Copyright (C) 2023 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
$ which gcc
/lustre7/home/lustre4/youraccount/spack/opt/spack/linux-centos7-x86_64_v3/gcc-4.8.5/gcc-13.1.0-j4uonbxx6sjxhg4tx3dd5q6mej62pgcd/bin/gcc
- The first time, use the
spack compiler findcommand to make spack recognise GCC.
By executing the following command, spack will find the compiler pre-installed on the NIG supercomputer.
spack compiler find
Then, a $HOME/.spack/linux/compilers.yaml file will be created and the recognised information will be stored there.
To make spack recognise GCC compiled by spack with the spack compiler find command, execute the spack compiler find command with thespack load gcc command executing.
- Confirmation of operation
Make spack recognise gcc ver 13.1.0 made with the spack install gcc command and try installing other spack packages with it.
spack load gcc@13.1.0
spack compiler find
spack install tree %gcc@13.1.0
An example of an execution is shown below.
$ spack load gcc@13.1.0
$ spack compiler find
==> Added 1 new compiler to /home/oogasawa/.spack/linux/compilers.yaml
gcc@13.1.0
==> Compilers are defined in the following files:
/home/oogasawa/.spack/linux/compilers.yaml
$ spack install tree %gcc@13.1.0
==> Installing tree-2.1.0-ah6zdt2znzoc7ie7kpenwj6t255mr3wp
==> No binary for tree-2.1.0-ah6zdt2znzoc7ie7kpenwj6t255mr3wp found: installing from source
==> Fetching https://mirror.spack.io/_source-cache/archive/01/0160c535bff2b0dc6a830b9944e981e3427380f63e748da96ced7071faebabf6.tgz
==> No patches needed for tree
==> tree: Executing phase: 'install'
==> tree: Successfully installed tree-2.1.0-ah6zdt2znzoc7ie7kpenwj6t255mr3wp
Stage: 1.15s. Install: 1.54s. Post-install: 0.16s. Total: 2.96s
[+] /lustre7/home/lustre4/oogasawa/spack/opt/spack/linux-centos7-zen/gcc-13.1.0/tree-2.1.0-ah6zdt2znzoc7ie7kpenwj6t255mr3wp
$ spack find
-- linux-centos7-x86_64_v3 / gcc@4.8.5 --------------------------
autoconf@2.69 binutils@2.40 gcc@13.1.0 gmp@6.2.1 libxml2@2.10.3 ncurses@6.4 readline@8.2 zlib@1.2.13
autoconf-archive@2023.02.20 bzip2@1.0.8 gdbm@1.23 libiconv@1.17 m4@1.4.19 perl@5.36.0 tar@1.34 zstd@1.5.5
automake@1.16.5 diffutils@3.9 gettext@0.21.1 libsigsegv@2.14 mpc@1.3.1 pigz@2.7 texinfo@7.0.3
berkeley-db@18.1.40 gawk@5.2.1 gmake@4.4.1 libtool@2.4.7 mpfr@4.2.0 pkgconf@1.9.5 xz@5.4.1
-- linux-centos7-zen / gcc@13.1.0 -------------------------------
tree@2.1.0
- Now, you can see that the tree has been compiled with gcc@13.1.0.
- Since bootstrap=True when executing the
spack install gcccommand, gcc 13.1.0 is compiled without problems even with older version of the C compilers.
- Unloading gcc
To undo, execute the spack unload command.
$ spack unload gcc
$ gcc --version
gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-44)
Copyright (C) 2015 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
$ which gcc
/usr/bin/gcc