Access

Revision as of 15:51, 31 December 2017

Access to the C3P facility is gained by opening / annually renewing an account. This is done simply by compiling the form that can be downloaded at the end of this page. There are different types of accounts, each giving access to different kinds of hardware, to be chosen based on the needs of the research conducted (i.e. the kind of computations that need to be carried out).

Definitions

Account: is the username/password pair that gives access to one or more computational resources. A share quota is associated to each account, per cluster. The share counts the amount of resources that can be used with respect to the other accounts. Such a quota enters in the fairshare (see Support page) management of the cluster queue, thus it affects how the priority of the job changes in time. The latter will decrease (or increase) as the account usage of the HPC resources increases (or decreases) in time. Each account remains active for 1 year and can be opened / renewed by ensuring the amount reported in the table below. Three main categories of account are available: base, extended and complete. They are all briefly described in the table below. Please, take a look at the Clusters page for more information on the available HPC resources.

Account referent: is the referent for the payment and the one responsible of the good behaviour of the users. An account referent can request to open more than one account, which can be of different type. Each account remains active for one year. After this period, the account(s) will be closed without any explicit renewal request from the account referent.

Annual costs

The table below reports the types of accounts that are available and their annual cost.

Contributions to C3P

The HPC facility, beyond the normal maintenance, requires updates in the power and conditioning plants, as well as, update of the computers. While the accounts prices are calculated to guarantee the normal function of the facility, the more expensive updates require much more funding. Such a contribution had always come from funds of research project of whom that are interested in keeping C3P alive, and we hope that these contributions will continue. To thank colleagues that partecipated and partecipate to the update of the C3P facility, we propose two types of benefits.

Expenses for the structure

Discounts are applied for whom that in the last 5 years contributed to the update of the structures (power and conditioning plants). The discount is calculated as...

Expenses for the clusters

The second benefit is an increase of the share to whom that in the last 5 years contributed to the purchase of new nodes on the clusters. See the Support page, in the fairshare section, to see how the benefit is applied.

Account request

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