Rironseppyou Network (Rironnet)
General information
- The Rironseppyou Network (Rironnet) is the Linux network operated by
the Glacier and Ice Sheet Research Group at the
Institute of Low Temperature Science, Hokkaido University.
- The central server is the computer wwwice,
which distributes the users (via NIS = Network Information Service),
the home directories (via NFS = Network File System)
and the websites (via the Apache web server).
- The home directories are located at /uchi/<username>
(= /home/<username>/mnthome).
In addition, each user can use work directories such as
/work/earth1/<username> etc.
Model |
Name (1) |
Room |
OS |
CPU |
RAM |
HD |
Exported directories |
Dell Precision 7920 |
trillian |
306 |
OpenSUSE Leap 15.3 |
12-Core Intel Xeon Gold 6256,
3.6 GHz (4.5 GHz Turbo) |
64 GB |
4 x 2 TB SATA |
/work/trillian1 (1.8 TB),
/work/trillian2 (1.6 TB),
/work/trillian3 (1.4 TB) |
Dell Precision 7910 |
earth |
307 |
OpenSUSE Leap 15.3 |
2 x 14-Core Intel Xeon E5-2690 v4,
2.6 GHz |
128 GB |
4 x 2 TB SATA |
/work/earth1 (1 TB),
/work/earth2 (1 TB),
/work/earth3 (1 TB),
/work/earth5 (1 TB),
/work/earth6 (1 TB),
/work/earth7 (1 TB),
/work/earth9 (1.1 TB) |
Dell Precision 7610 |
deepthought |
306 |
OpenSUSE Leap 15.3 |
12-Core Intel Xeon E5-2697 v2,
2.7 GHz |
128 GB |
2 x 1 TB SATA,
1 x 2 TB SATA |
/work/deepthought7 (1 TB),
/work/deepthought9 (350 GB) |
Dell Optiplex 990 |
eddie |
306 |
OpenSUSE Leap 15.3 |
Quad-Core Intel Core i5-2400,
3.1 GHz |
8 GB |
1 x 1 TB SATA |
--- |
Dell OptiPlex 7040 |
wwwice (server) |
306 |
OpenSUSE Leap 15.3 |
Quad-Core Intel Core i5-6500,
3.2 GHz |
8 GB |
2 x 2 TB SATA |
/uchi
(home directories) |
(1) Full name: <name>.lowtem.hokudai.ac.jp
Backups
- A backup of all home directories /uchi/<username>
(= /home/<username>/mnthome)
is written every night on the external hard disk of the computer wwwice.
- No backups of the work directories
(/work/earth1/<username> etc.) are made.
- Compilers:
- Python interpreter.
- MATLAB 9.12 (R2022a)
(network license for 5 concurrent users).
- GNU Octave
(free software, largely compatible to MATLAB).
- QGIS -
free and open-source geographic information system (GIS).
- Visualization tools
GMT
and GrADS.
- NetCDF - Network
Common Data Form (software libraries and self-describing, machine-independent
data formats for scientific data),
Ncview -
NetCDF visual browser,
NCO - NetCDF Operators,
CDO - Climate Data Operators.
- Typesetting systems LaTeX (with editor kile) and LyX.
- Various Linux standard software...
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