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incoming_spack/ 2021-04-29 17:04 -
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rpms/ 2020-05-11 18:37 -
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rpms_contrib/ 2022-11-21 13:37 -
rpms_contrib_test/ 2019-03-22 13:04 -
rpms_test/ 2020-05-11 18:27 -
rpms_updates/ 2023-10-30 21:17 -
source_buildinfo/ 2020-10-08 12:51 -
spack/ 2021-04-05 21:54 -
tarFiles/ 2023-10-31 17:27 -
temp_for_bh/ 2023-07-08 08:40 -
test.txt 2023-01-17 12:52 0
test/ 2022-05-18 19:54 -
tmp/ 2020-12-07 13:48 -
LCG RELEASES
Welcome to the LCG Releases provided by the SPI team in EP-SFT at CERN.
In this CVMFS repository /cvmfs/sft.cern.ch you can find a software stack containing over 450 external
packages as well as HEP specific tools and generators. There are usually two releases per year as well
as development builds every night.
The releases start with the prefix LCG_ followed by the major version of the release, e.g. 96. A
major release implies major version changes in all packages of the software stack. For patches, we
append lowercase letters like a, b, ... to the name of the release.
Example: The release 96 provides the following version:
- A release candidate used for testing an upcoming major release:
LCG_96rc1
- A new major release:
LCG_96
- A patch release (only if necessary) to fix problems in this major release:
LCG_96a
These versions are based on Python 2.x. For most versions we also provide a Python 3.x build e.g.
LCG_96python3. For the Nightlies we provide the following configurations:
dev4 Based on the latest stable version of ROOT and Python 2.xdev3 Based on the latest git HEAD of ROOT and Python 2.x (called 'Bleeding Edge' in SWAN)dev3python3 Based on the latest git HEAD of ROOT and Python 3.x (called 'Bleeding Edge Python 3')
There are also builds with CUDA support and specific SIMD instruction sets.
PREQUESITES
We try to use as many packages from the operating system as possible. That's why a curated list of
packages for SLC 6, CentOS 7, Ubuntu 16.04 and Ubuntu 18.04 exists called HEP_OSlibs.
These basic packages need to be present on your machine in order for the LCG releases to work.
More information can be found at CERN's GitLab.
USAGE
For most of our distributed software you can find both a Bash script (ending in .sh) as well as a
C Shell script (ending in .csh). By using the source command in your local shell with these
scripts you can change your current shell environment to use the software on CVMFS instead of your
locally installed packages. These changes only last until you close the current terminal session.
In this section we introduce the most used features of the LCG Releases in /cvmfs/sft.cern.ch/lcg/:
contrib
- Used for compilers, CMake and other build tools
- We provide and maintain
gcc, clang, CMake. The compilers come bundled with binutils.
- The other subfolders in
contrib are not as well maintained as the three mentioned above
- Example: Use the latest stable GCC 9 on a CentOS 7 machine in a Bash shell:
source /cvmfs/sft.cern.ch/lcg/contrib/gcc/9/x86_64-centos7/setup.sh
views
- You can make all 450+ packages of the LCG software stack available in your current shell
without any installations
- The setup takes a couple of seconds in the CERN network. Outside it might take a bit longer.
- For the nightly builds, there's a
latest symlink that links to the latest stable build
- Example: Use the LCG release 96 built with GCC 8 on a CentOS 7 machine in a Bash shell:
source /cvmfs/sft.cern.ch/lcg/views/LCG_96/x86_64-centos7-gcc8-opt/setup.sh
- Example: Use the Nightly dev4 built with Clang 8 on a CentOS 7 machine in a Bash shell:
source /cvmfs/sft.cern.ch/lcg/views/dev4/latest/x86_64-centos7-clang8-opt/setup.sh
releases
- If you only need a specific package (including its dependencies) you can also do that
- Example: Use only
Geant4 from the LCG_96 release for CentOS 7 and Clang 8 in a Bash shell:
source /cvmfs/sft.cern.ch/lcg/releases/LCG_96/Geant4/10.05.p01/x86_64-centos7-clang8-opt/Geant4-env.sh
nightlies
- Same as
releases for the nightly builds: Use single packages instead of an entire view
- Example: Use only
rootpy from Monday's dev3 Nightly for CentOS 7 and GCC 9 in a Bash shell:
source /cvmfs/sft.cern.ch/lcg/nightlies/dev3/Mon/rootpy/1.0.1/x86_64-centos7-gcc9-opt/rootpy-env.sh
SUPPORT
If you experience any issues while using our software stack, please don't hesitate to
raise a JIRA issue
or write an email to the SPI team
FURTHER INFORMATION
FILE SYSTEM LAYOUT
```
/cvmfs/sft.cern.ch/lcg/
releases/
/ # This is the place where the actual package files are living
-/ # hex hash value calculated from package dependencies
/ # platform tag ---
-env.sh # script to set the environment
logs/ # log files generated during the build process
include/
lib/
bin/
...
...
LCG/ # Collection of all packages, versions and hashes that were used in this release
/
/
# link to ../../..//-/
LCG_<YY>/
...
...
views/
dev<AA>/
latest/
<platform>/ # link to latest stable ../<weekday>/<platform>
<weekday>/
<platform>/
setup.csh
setup.sh
bin/
<binaryA> # link to previous release /cvmfs/sft.cern.ch/lcg/releases/<package>/<version>-<hash>/<platform>/bin/<binaryA>
<binaryB> # link nightly build (increment) -> /cvmfs/sft-nightlies.cern.ch/lcg/nightlies/dev<AA>/<weekday>/<package>/<version>/<platform>/bin/<binaryB>
...
include/
<includeA> # link to previous release /cvmfs/sft.cern.ch/lcg/releases/<package>/<version>-<hash>/<platform>/include/<includeA>
<includeB> # link nightly build (increment) -> /cvmfs/sft-nightlies.cern.ch/lcg/nightlies/dev<AA>/<weekday>/<package>/<version>/<platform>/include/<includeB>
...
lib/
<libraryA> # link to previous release /cvmfs/sft.cern.ch/lcg/releases/<package>/<version>-<hash>/<platform>/lib/<libraryA>
<libraryB> # link nightly build (increment) -> /cvmfs/sft-nightlies.cern.ch/lcg/nightlies/dev<AA>/<weekday>/<package>/<version>/<platform>/lib/<libraryB>
lib64/
...
...
Tue/
Wed/
Thu/
...
dev<AA>python3/
dev<BB>/
LCG<XX>/
<platform>/
setup.csh
setup.sh
bin/
<binary> # link to release /sft.cern.ch/lcg/releases/<package>/<version>-<hash>/<platform>/bin/<binary>
...
include/
<include> # link to release /cvmfs/sft.cern.ch/lcg/releases/<package>/<version>-<hash>/<platform>/include/<include>
...
lib/
<library> # link to release /sft.cern.ch/lcg/releases/<package>/<version>-<hash>/<platform>/lib/<library>
...
lib64/
...
...
LCG<XX>python3/
LCG<YY>/
...
contrib/
CMake/
latest # link to latest stable version, e.g ./3.13.4
13.3.4/
Linux-x86_64/
bin/
cmake
ctest
...
...
...
gcc/
8 # link to stable version ./8.2.0
8binutils # link to stable version ./8.2.0
8testing # link to experimental version ./8.3.0
8.2.0/
x86_64-centos7 # link to /cvmfs/sft.cern.ch/lcg/releases/gcc/8.2.0-<hash>/x86_64-centos7/
x86_64-slc6 # link to /cvmfs/sft.cern.ch/lcg/releases/gcc/8.2.0-<hash>/x86_64-slc6/
setup.csh # Setup script for this gcc compiler in C shell
setup.sh # Setup script for this gcc compiler in bash
bin/
...
...
clang/
8 # link to stable version ./8.0.0
8binutils # link to stable version ./8.0.0
8.0.0/
x86_64-centos7 # link to /cvmfs/sft.cern.ch/lcg/releases/clang/8.0.0-<hash>/x86_64-centos7/
setup.csh # Setup script for this clang compiler in C shell
setup.sh # Setup script for this clang compiler in bash
bin/
...
x86_64-slc6 # link to /cvmfs/sft.cern.ch/lcg/releases/clang/8.0.0-<hash>/x86_64-slc6/
...
```
ALTERNATIVES
If you don't want to use the the LCG software stack in a Bash environment, we also provide other
pre-built distributions:
- Tarballs, accessible via
- XRootD:
root://eosuser.cern.ch//eos/project/l/lcg/www/lcgpackages/tarFiles/releases/
- EOS Fuse client:
/eos/project/l/lcg/www/lcgpackages/tarFiles/releases/
- HTTP
https://lcgpackages.web.cern.ch/lcgpackages/tarFiles/releases
- RPMs
```
[lcg]
name=LCG Releases Legacy
baseurl=http://lcgpackages.web.cern.ch/lcgpackages/rpms
enabled=1
gpgcheck=0
protect=0
[lcg-updates]
name=LCG Releases
baseurl=http://lcgpackages.web.cern.ch/lcgpackages/rpms_updates
enabled=1
gpgcheck=0
protect=0
[lcg-contrib]
name=LCG Contrib
baseurl=http://lcgpackages.web.cern.ch/lcgpackages/rpms_contrib
enabled=1
gpgcheck=0
protect=0
```