BM@N (Baryonic Matter at Nuclotron) is the first experiment to be realized at the accelerator complex of NICA-Nuclotron at JINR (Dubna, Russia). The aim of the experiment is to study interactions of relativistic heavy ion beams with energy up to 5.5 AGeV with fixed targets. The research program of the experiment includes studies of strange mesons, multi-strange hyperons and light hyper-nuclei which are produced in nucleus-nucleus collisions close to the kinematic threshold.
Software.
BM@N software has been actively developed since 2014 and is implemented in C++ for Linux/MacOS using FairRoot. BM@N software is deployed on the CVMFS system. The BmnRoot package is available in GitLab@JINR: https://git.jinr.ru/nica/bmnroot. Automatic software deployment is also performed via Gitlab@JINR.
/CVMFS/NICA/JINR.RU/CENTOS7
FAISOFT
FAIRROOT
BMNROOT
The BmnRoot framework is designed for realistic simulation events, reconstruction of experimental or simulated data, and subsequent physical analysis of ion collisions with a fixed target obtained at the BM@N facility, has been actively developing since 2014.
BM@N uses the DIRAC loading and data management system.
Computing platforms for BM@N:
- GRID Tier1&2 lxui.jinr.ru; Tier1: 4000 cores (for NICA),
Tier2: 1000 cores (for NICA) - NICA Cluster ncx[101-106].jinr.ru ; 300 cores (per user), SLURM: 1800 cores;
- HybriLIT (SC «Govorun») hydra.jinr.ru; SLURM: 192 cores
- BM@N Online Cluster ddc.jinr.ru : SLURM: ≈700 cores.
BM@N Storage System:
For data storage, BM@N uses the following storage systems:
- CICC: EOS 3800.00 TB EOS-CTA: 500 TB (Tape robotic systems – a long-term storage, store raw and gedata, online raw data backup to tapes);
- CLOUD: Ceph 2.8 PB;
- HybtiLIT: Lustre 300 TBssd;
- NICA Cluster EOS: 1.3 PB (replica); NFS: 300 TB (for NICA);
- BM@N Online Cluster: CEPH: 2.8 PB (replica), CEPH (hot): 100 TBssd.