Thomas Cluzel requested to merge tcluzel/Gaudi:cmake-modernisation into master May 24, 2019

CMake modernization

See on JIRA.

Goal

Modernize the CMake of Gaudi to speed up the configuration of the project.

What needs to be done before merging?

Ask someone from ATLAS if share/PartPropSvc.py and share/PDGTABLE* still need to be installed
LHCb needs to be able to use the new configuration of Gaudi

How to compile? The new way with modern CMake

Set up the build environment (platform)

hpx_source /cvmfs/lhcb.cern.ch/lib/etc/cern_profile.sh
source /cvmfs/sft.cern.ch/lcg/views/LCG_96/x86_64-centos7-gcc8-opt/setup.sh
export CMAKE_PREFIX_PATH="$CMAKE_PREFIX_PATH:/cvmfs/sft.cern.ch/lcg/releases/LCG_95/vectorclass/1.30/x86_64-centos7-gcc8-opt/"
export CMAKE_PREFIX_PATH="$CMAKE_PREFIX_PATH:/cvmfs/projects.cern.ch/intelsw/psxe/linux/x86_64/2019/vtune_amplifier" # optional
lb-set-platform x86_64-centos7-gcc8-opt

⚠ You need at least cmake 3.15 to be able to configure Gaudi. If needed do the following:

export PATH="/cvmfs/lhcb.cern.ch/lib/contrib/CMake/3.15.2/Linux-x86_64/bin:$PATH"
cmake --version

If you do not feel like sourcing a view, you may use a toolchain but be aware that toolchains inside Gaudi are not meant to stay here, they are examples. ln -s cmake/toolchains/x86_64-centos7-gcc8-opt.cmake toolchain.cmake

Compilation

git clone ...
cd ...
# Configure
cmake -S . -B build.$BINARY_TAG [-D CMAKE_TOOLCHAIN_FILE=toolchain.cmake]
# Build
cmake --build build.$BINARY_TAG -j `nproc`
# Run the tests
cmake --build build.$BINARY_TAG -t test
# Package Gaudi
cmake --build build.$BINARY_TAG -t package

# Or

git clone ... ; cd ...
make
make test
make package

Every optional dependency of Gaudi (namely AIDA XercesC CLHEP HepPDT CppUnit unwind gperftools Doxygen IntelAmplifier jemalloc) can be disabled at configure time by passing -DGAUDI_USE_<DEPENDENCY>=OFF to cmake.