Running Gaussino

Please note that Gaussino is an experiment-independent package. If you are looking for a concrete experiment implementation, here is the list:

Gauss-on-Gaussino (LHCb Experiment)

Running from the nighlties

Currently it is only possible to build Gaussino with the help of nightly builds.

You can check the nighlty build status by visiting https://lhcb-nightlies.web.cern.ch/nightly/. The nightly slot currently available for Gaussino is lhcb-gaussino. You can either install the latest build or one from the past in case the current one is failed.

Configuring the environment

Make sure you’re using LbEnv on lxplus or similar. You can run this to be sure:

source /cvmfs/lhcb.cern.ch/lib/LbEnv

Configure the platform

lb-set-platform x86_64_v2-centos7-gcc11-opt

Note

Use x86_64_v2-centos7-gcc10+dd4hep-opt if you want work with Detector/DD4hep.

Building from source

Note

This is the recommended way for now.

Fetch the nightlies locally

lbn-install --verbose --platforms=x86_64_v2-centos7-gcc11-opt --projects=Gaudi,Geant4,DBASE,Detector,LHCb,Run2Support lhcb-gaussino Today
export CMAKE_PREFIX_PATH=$PWD:${CMAKE_PREFIX_PATH}

Note

Use x86_64_v2-centos7-gcc11+dd4hep-opt if you want work with Detector/DD4hep.

OR (less recommended) add the nightlies path to CMAKE_PREFIX_PATH directly from the destination

export CMAKE_PREFIX_PATH=/cvmfs/lhcbdev.cern.ch/nightlies/lhcb-gaussino/latest:${CMAKE_PREFIX_PATH}

Clone the repository.
```
git clone ssh://git@gitlab.cern.ch:7999/Gaussino/Gaussino.git
cd Gaussino
```
Note

Don’t forget to merge all pending merge requests with a label `lhcb-gaussino`!

Configure, build and install:

cmake -DCMAKE_TOOLCHAIN_FILE=toolchain.cmake -B build
make -C build -j4 install

Run

./build/run gaudirun.py your_options.py

Working on a satellite project

Warning

This is not working yet.

Get a skeleton of your project by typing:

lb-dev --nightly lhcb-gaussino/Today Gaussino/HEAD -c x86_64-centos7-gcc9-opt

Additional configuration.

cd GaussinoDev_HEAD

git lb-use Gaussino https://gitlab.cern.ch/Gaussino/Gaussino

Configure the package you’d like to develop. Here Sim/Gaussino
```
git lb-checkout Gaussino/master Sim/Gaussino
```
Build.
```
make
```

Working on a satellite project with nightlies locally

Warning

This is not working yet.

This might be useful if you want a local copy of the projects in the nighlt slot or if you’re looking for a nightly slot that is no longer present in /cvmfs/lhcbdev.cern.ch/nightlies/lhcb-gaussino

ll /cvmfs/lhcbdev.cern.ch/nightlies/lhcb-gaussino

Here is an exemplary list of nighlty slots:

total 5.0K
drwxr-xr-x. 12 cvmfs cvmfs 224 Apr 24 01:44 931
drwxr-xr-x. 12 cvmfs cvmfs 224 Apr 26 01:05 932
drwxr-xr-x. 12 cvmfs cvmfs 224 Apr 27 01:43 933
drwxr-xr-x. 12 cvmfs cvmfs 224 Apr 29 01:20 934
drwxr-xr-x. 12 cvmfs cvmfs 224 Apr 30 02:30 935
drwxr-xr-x. 12 cvmfs cvmfs 224 May  2 02:53 936
lrwxrwxrwx.  1 cvmfs cvmfs   3 Apr 30 01:11 Fri -> 935
lrwxrwxrwx.  1 cvmfs cvmfs   3 May  2 00:10 latest -> 936
lrwxrwxrwx.  1 cvmfs cvmfs   3 May  2 00:10 Sun -> 936
lrwxrwxrwx.  1 cvmfs cvmfs   3 Apr 29 00:35 Thu -> 934

```Today```` nighlty slot will be used in further steps.

Create a base directory for your nighlties.
```
mkdir gaussino_base
```

Install the nightlies in your base directory.

lbn-install --verbose --projects Gaussino --platforms x86_64-centos7-gcc9-opt --dest gaussino_base/lhcb-gaussino/Today lhcb-gaussino Today

Use the nightlies in your base directory to work on a satellite project.

lb-dev --nightly-base gaussino_base --nightly lhcb-gaussino/Today Gaussino/HEAD -c x86_64-centos7-gcc9-opt

Additional configuration.

cd GaussinoDev_HEAD

git lb-use Gaussino https://gitlab.cern.ch/Gaussino/Gaussino

Configure the package you’d like to develop. Here Sim/Gaussino
```
git lb-checkout Gaussino/master Sim/Gaussino
```
Build.
```
make
```