ARIS – Greek Tier-1 HPC System
ARIS (Advanced Research Infromation System) is an HPC cluster based on IBM’s NeXtScale platform, incorporating the Intel ® Xeon ® E5 v2 processors, (Ivy Bridge) and has a theoretical peak performance (Rpeak) of 190,85 TFlops and a sustained performance (Rmax) of 179,73 TFlops on the Linpack benchmark. With a total of 426 compute nodes that incorporate 2, 10 core CPUs (Ivy Bridge – Intel Xeon E5-2680v2, 2.8 GHZ), it will offer more than 8500 processor cores (CPU cores) interconnected through FDR Infiniband network, a technology offering very low latency and high bandwidth. Each compute node offers 64 Gbyte of RAM. In addition, the system offers about 1 Petabyte (quadrillion bytes) of storage, based on the IBM General Parallel File System (GPFS). The system software allows developing and running scientific applications and provides several pre-installed compilers, scientific libraries and popular scientific application suites. Other technical information is provided in the table below.
Administrative data
| Name | ARIS |
| Short Description | Greek Tier-1 HPC System |
| Owner | GRNET S.A. |
| Country | Greece |
Dedication to VI-SEEM
| CPU (percent) | 5% |
| Storage (percent) | 5% |
| CPU (core-hours per year) | 3,000,000 |
| Storage in TB | 50 |
Integration
| System operational since | Jul 15 |
| Available to the project from | PM01 |
| Expected date to be phased | - |
| Interfaces | SSH |
Computational Power
| Number of servers | 426 | Interconnect type | FDR-14 Infiniband | Peak performance (Tflops) | 190.85 | |
| Server specification | IBM NeXtScale nx360 M4 | Interconnect latency | 2.5 μs | Real performance (Tflops) | 179.73 | |
| CPU per server | 2 | Interconnect bandwidth | 40 Gbps | Operating system | RedHat Enterprise Linux | |
| RAM per server | 64 GB | Local filesystem type | IBM GPFS | Version | 6.6 | |
| Total number of CPU-cores | 8,520 | Total storage (TB) | 1 TB | Batch system/scheduler | SLURM | |
| Max number of parallel processes | 8,520 | Peak performance CPU (Tflops) | 190.85 | |||
| Development tools | intel, pgi, gnu, intelmpi, openmpi, gdb, gdb-ia, pgdbg, ddd, VTune, Scalasca, mpiP, gprof, pgprof | |||||
| Libraries | ACML, ATLAS, BOOST, ElmerFEM, ELPA, FFTW, GSL, libFLAME, Libint, Libxc, METIS, MKL, OPENBLAS, PARMETIS, SCALAPACK, Voro++, GLPK, JasPer, NETCDF, HDF5, UDUNITS, MED | |||||
| Applications | ABinit, AByS, BigDFT, CP2K, Desmond, GAMESS US, GROMACS, LAMMPS, MDynaMix, MPQC, NAMD, NWChem, Octopus, OpenMD, PLUMED, Quantum ESPRESSO, WRF, WRF-CHEM, Code Saturne, OpenFOAM | |||||