Università di Pisa PARALLEL ARCHITECTURE LAB
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Pianosa

pianosa is a blade cluster from RLX Technologies, made up of 2 racks holding 34 Pentium III boards.
Processing boards: 800MHz Pentium III, 1 Gb RAM, 2x18 Gbyte ATA disks, 3x Pro100 Ethernet connections.
Computing nodes currently run several versions of the LINUX O.S; PVFS1.6 parallel file system.
The pianosa cluster is installed in our Dept. Computing Center.
News: The second rack has been added; there are 34 permanently connected blades, the inter-rack connection is a Gigabit link. Newer blades have slightly more disk space.


Backus

Backus is a PC cluster running the LINUX O.S. PCs in the cluster are connected via (100Mbit) Fast Ethernet.
It comprises 10 Pentium II - 266 Mhz nodes and 6 Intel Celeron - 400 Mhz nodes with 128Mb RAM.
The backus cluster is installed in the Computing Center of the Teaching and Laboratory Building.
NEWS! Backus is currently under maintenance. It's being reinstalled with Fedora core 2 and Globus 3.0 support to become part of the ISTI/C.S. Dept. Grid test-bed.


C1

C1 is made up of 8 nodes.
Machine configuration: Pentium 4 2GHz, 512 Mb RAM, double Ethernet network (1Gbit + 100Mbit), 40Gb hard disk; dual boot Red Hat 7.3/ 9, PVFS 1.6 parallel file system.
The C1 cluster is installed in our Dept. Computing Center.


GRID Isti/DipInf

We are setting up a Globus 3.0 based ISTI / C.S.Dept. Computational Grid.
Nodes are Intel/LINUX workstations in everyday use. They differ in computing power, main and secondary memory availability.

OLD previously, 9 nodes were distributed over 2 sites. Of the first 9 nodes, 4 are located within the C.S.Dept. local network, and 5 belong to the ISTI local network.
The status of this small grid was tested approx. daily. Latest results at the link above, clicking on the "Grid Check" link.

NEWS! Several of the ISTI-DipInf Grid machines are currently being re-cabled, in order to become part of an experimental Grid platform whose backbone is a dynamically reconfigurable optical ring metropolitan network. In the process of moving the machines, more are being added. Details and progress status of the work will soon appear here. Current connectivity tests are run from the ISTI local network, and can be found at Nicola Tonellotto's Home page, here.