Nuredduna Computer Cluster

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Nodes (computational units)

Nuredduna mosix cluster has currently 70 nodes and a grand total of 200 computational cores.
40 nodes with Intel Core2 E6600 dual-core processors running at 2.4 Ghz on Intel DQ965GF and Asus P5B-VM microATX motherboards with Intel 965 chipsets
30 nodes with Intel Core2 Q6700 quad-core processors running at 2.66 GHz on a Gigabyte GA-G33M-DS2R microATX motherboard with Intel G33 chipset
The amount of memory of each node ranges from 2 to 8 GB of DDR2 running at 667 MHz, for a total of about 280 GB of RAM
Nodes are diskless. That implies less power consumption, less heat generation, more reliability and less cost.
Nodes are boxed in slim form factor cases Aopen H360 with 300 W PFC power supply.

Communications

We use three 48-port Gigabit Ethernet switches. One HP Procurve 2448 and two D-Link DGS-1248T. Each of them have a switching capacity of 96Gbps.
Switches are connected among them through the IFISC Vlan on the campus network.
Node 1 is directly connected to the IFISC Vlan.
The other nodes are connected to one of the switches using the Gigabit Ethernet interface integrated on the motherboard.
The disk server Dolsa is also directly connected to the IFISC Vlan through two Ethernet cables in channel bonding configuration, providing higher speed and more reliability.
The whole cluster is located on floor 0 of the "Instituts Universitaris" building, in a room specially designed for it, including technical floor for cabling. We have a 40A triphasic electrical supply backed up by UPS and a power generator. The cooling capability is 20000 frigories