Hardware and OS
by
Henrik R. Nagel
—
last modified
Feb 16, 2010 04:29 PM
Contents
Key Numbers about njord.hpc.ntnu.no
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| Njord.hpc.ntnu.no and Vice-Dean John Krogstie. Photo:Kai Torgeir Dragland | ||||
| Aggregated |
Per Node | |||
|---|---|---|---|---|
| Peak performance |
23 Teraflops/s |
121 Gigaflops/s |
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| # Nodes |
192 | IBM System p5 575 POWER5+ 1.9 GHz | ||
| # CPU's/# Cores |
1536 / 3072 |
8 / 16 | ||
| Processors |
1536 | 8 x POWER5+ 1.9 GHz (1900098000 Hz) | ||
| Total memory |
6.5 TiB |
32 GiB (182 nodes) / 128 GiB (6 nodes) / 16GiB (4 nodes) |
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| Centralized storage |
100 TiB |
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| Operating System |
IBM AIX 5L (Linux affinity), version 5.3 |
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| Interconnect | IBM HPS Switch (Federation), MPI latency 3.6 μs, MPI bandwidth 3.77 GB/s (unidirectional) 5.80 GB/s (bidirectional) |
Shared Memory |
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| Compute Racks |
22 |
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| Infrastructure racks |
2 |
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| Storage racks |
4 | |||
| Dimensions |
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| Weight |
30Tons |
Determining the AIX OS revision
Precise information on the current AIX OS release is obtained with the oslevel command:
$ oslevel -s 5300-09-02-0849
This system runs AIX 5.3.9.2, or AIX 5.3 TL9 SP 2. This means AIX5, version 3, technology level (TL) 9 and service pack (SP) 2, released week 49, 2008. A technology level contains new features compared to previous levels, while service packs contains fixes only. The first digit is actually the POWER processor architecture of the system. An AIX4 system runs POWER4, AIX5 runs POWER5 and so on.
