DARI portal¶

The DARI portal (Demande d'Attribution de Ressources Informatiques, computing resource allocation requests) lets you request IDCS digital resources — HPC/AI computing, cloud, storage —, manage the resulting projects and open access for their members.

Address: https://dari.idcs.polytechnique.fr

Signing in¶

Two ways in, on the sign-in page:

• Username and password from the Ecole polytechnique's directory, then "Sign in".
• Through the identity federation, under "Or sign in with": choose your federation, then authenticate with your home institution. Your password is never typed on the portal.

If the portal says your address "already belongs to a portal account", you already have an account opened another way: sign in that way, then link your federated identity from My profile (see below).

Requesting resources¶

1. Open Forms and choose the form for the resource you need.
2. Describe the project: name, acronym, organisation, requested resources, desired end date.
3. Submit. The request appears under Submissions, with its status:

You are notified by email of every decision.

Managing a project¶

Each project has project managers and members. From the project page (Projects), a project manager:

• adds members by searching for their name or address. Someone who does not have an account yet gets an enrolment request, submitted to the administrators;
• sets each person's role and rights on the resource: a level (None, Read, Standard, Advanced, Admin) pre-fills the detailed rights;
• removes members: their rights on the resource are withdrawn;
• keeps an eye on the project's end date. A reminder is sent as it approaches; an extension is requested from the operations team, the only one able to move that date. Nothing closes automatically at the end date.

Accessing the resource¶

• SSH key. Access to the computing resources is by key. Upload your public key (the .pub file, never the private key) in My profile. Accepted types: Ed25519, ECDSA, RSA of at least 3072 bits, FIDO2 hardware keys (sk-…).

• Slurm account. On a Slurm cluster, every job must name its project, shown on the project page:

  sbatch --account=<project-account> my_job.sh
  

  There is no default account: without --account, the submission is refused.

Access is opened automatically, usually within a minute of being added to the project. On the project page, Check shows what is in place on the resource.

Following usage¶

The Dashboard summarises your requests and projects, and shows your projects' usage (jobs, CPU and GPU hours), read from Slurm accounting, by project and by user.

My profile and preferences¶

• My profile: your projects and rights, your SSH keys, and your federated identities. Link a federated identity to be able to sign in through the federation too: you go through it once, while already signed in, to prove both identities are yours.
• Preferences: light or dark theme, accent colour, density, language (French or English) and the page opened after signing in.

Rules, security and contacts¶

The links at the bottom of the sign-in page give:

• the terms of service;
• the privacy policy;
• the security incident response policy.