Hardware Overview
ARIS is the name of the first Greek supercomputer at GRNET ( Greek Research and Technology Network) in Athens.
Technical Info
| ARIS compute nodes |
|
| Architecture |
x86-64 |
| System |
IBM NeXtScale nx360 M4 |
| Total number of nodes |
426 |
| Total number of cores |
8520 |
| Total ammount of RAM [TByte] |
27 |
| Total Linpack Performance [TFlop/s] |
180 |
| Components |
|
| Processor Type |
Ivy Bridge - Intel Xeon E5-2680v2 |
| Nominal Frequency [GHz] |
2.8 |
| Processors per Node |
2 |
| Cores per Processor |
10 |
| Cores per Node |
20 |
| Hyperthreading |
OFF |
| Memory |
|
| Memory per Node [GByte] |
64 (usable 57) |
| Interconnect |
|
| Technology |
Infiniband FDR |
| Topology |
Fat tree |
| Bandwidth [Gb/s] |
56 |
| Storage |
|
| Type |
IBM GPFS |
| Size [PByte] |
1 |
| Bandwidth [GB/s] |
6 |
| System Sofware |
|
| Operating system |
RedHat Linux 6.6 |
| Batchsystem |
SLURM |
| System Management |
xCat IBM |
| Monitoring |
Nagios, Ganglia |
| Login nodes |
|
| Number of Nodes |
2 |
| Processor Type |
Intel(R) Xeon(R) CPU E5-2640 v2 |
| Nominal Frequency [GHz] |
2.00GHz |
| Processors per Node |
1 |
| Cores per Processor |
16 |
| Threads per Processor |
32 |
| Hyperthreading |
ON |
| Memory per Node [GByte] |
132 |
Storage
There are two shared file systems on ARIS, HOME and WORKDIR . All login and compute nodes may access same dat on shared filesystems.
File system overview
| File system |
Type |
Env. Variable |
Size |
Lifetime |
Backup |
Quata (per project) |
Description |
| /users |
GPFS |
$HOME |
250 TB |
Project duration |
YES |
10 GB |
source files, input data |
| /work |
GPFS |
$WORKDIR |
500 TB |
Project duration |
NO |
10 GB |
short term, fast storage |
Quotas