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In January 2020 the A2(KNL) partition has been shut down and replaced with a new partition with GPU accelerators called MARCONI100. The new cluster is described in a separate document (UG3.1.12: MARCONI100 UserGuide)


System A1 (Broadwell) - out of production since September 26th, 2018


Model: Lenovo NeXtScale

Racks: 10
Nodes: 1512 (then reduced to 720)
Processors: 2 x 18-cores Intel Xeon E5-2697 v4 (Broadwell) at 2.30 GHz
Cores: 36 cores/node, 25.920 cores in total
RAM: 128 GB/node, 3.5 GB/core
Peak Performance single node: 1.3 TFlop/s
Peak Performance: about 2 PFlop/s


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For information about data transfer from other computers please follow the instructions and caveats on the dedicated section Data storage, or the document  Data Management.

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For accounting information please consult our dedicated section.

The account_no (or project) is important for batch executions. You need to indicate an account_no to be accounted for in the scheduler, using the flag "-A"

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The storage organization conforms to the CINECA infrastructure (see Section Data Storage and Filesystems). 

In addition to the home directory $HOME, for each user is defined a scratch area $CINECA_SCRATCH, a large disk for the storage of run time data and files. 

$WORK area is defined for each active project on the system, reserved for all the collaborators of the project. This is a safe storage area to keep run time data for the whole life of the project.

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