New user registration

In order to request an account on Centrale Nantes’s supercomputer: Liger, you must have (or be associated to) a Liger project. The flowchart below illustrates the registration process and can help you choose what to do. Sections with more detailed information can be found after the flowchart.

User registration forms

Make sure to have a Liger Project and the associated Liger Project ID (LIPID)*. You will also need:

» Your project supervisor details

» If you do not have a Centrale Nantes account, you will need to provide a static external IP address of your machine (the one assigned by your internet provider) to be able to connect to the cluster.

To validate your request – read, fill and sign the following forms:

– New Liger account request

– Resource usage T&Cs

Send a scanned copy of both documents to cnsc-help@ec-nantes.fr to request a Liger account.

Accounts are usually opened within 72 hours (working-day) upon receiving the PI’s approval and the signed forms.

* Don’t know your LIPID ? Ask your supervisor or institution if they have an already existing project or ask for a project.

Liger project request

All accounts need to be related to a Liger project. A project can have multiple users whose compute time (computational hours used) is accounted to the Liger project.

A project is linked to a type of funding. Please refer to the flowchart at the top of this document to understand what projects are available depending on your organisation. Below, a detailed list of all project types:

» To apply for a specific project in one of the categories below, please send an email to csnc-help@ec-nantes.fr with project type and description
» For more information on project types, please contact direction.ici@ec-nantes.fr

Industrial trial/test projects

They are intended for industrial users who are NEW to ICI-CNSC to allow them to port and test their codes before applying for full project schemes. These projects are generally granted a limited total of core hours over a finite and small amount of compute resources

Industrial paid projects

They are intended for companies or startups to work on research and development topics with private funding. Unlimited resources are granted to these types of projects. It is advised to set a maximum budget as a safe limit to avoid consuming more compute time than the budget allows.

See billing information for payment options.

Academic paid projects

They are intended for academic institutions (such as research laboratories) to use compute time in Liger with private funding. Unlimited resources are granted to these types of projects. It is advised to set a maximum budget as a safe limit to avoid consuming more compute time than the budget allows.

See billing information for or payment options.

Academic “free” projects – Centrale Nantes laboratories agreement

They are intended for projects with R&D Collaborations with ICI and ECN lab partners (internal MCA signed with AAU, LMJL, GeM, LHEEA and LS2N). These projects are generally granted a compute time limit over a finite amount of compute resources. Compute hours are funded by Centrale Nantes’ Research Department.

Academic “free” projects – external laboratories agreement

They are intended for academic institutions (such as research laboratories) external to Centrale Nantes. These projects are generally granted a compute time limit over a finite amount of compute resources. Compute hours are funded by GLICID, a public academic organisation.

Billing information

Approximate* computing costs:

industrial projects and startups: 0.05 € – 0.07 € / core-hour
academic projects: 0.03 € core-hour.

The total amount of compute time for a project is billed at the end of each academic year.

* prices are updated every year and therefore may vary

FAQ

What is the procedure to open a new account?

Why do I need a project to open an account?

I have some funds for compute time in Liger, how much does it cost?

What are the payment method?

I don’t have any funding dedicated to my project, can I still use Liger?

I am a student / PhD in a lab at Centrale Nantes, can I open an account?

My company wants to try Liger, what can I do?

When filling the forms

Please note that as soon as you submit your form, you agree to the ICI-CNSC User Regulations stated here »

Please provide proper information:

» Institutional email address (gmail, hotmail, etc. will not be accepted)

» Institutional address and phone (your private data will not be accepted)

» Correct information (title, name, etc.)