Astrophysical and Cosmological Relativity Group

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===== Applying for a Hypatia (HTC) account =====

** This also applies if you want "only" to use the GPU machines! **

As Hypatia's HTCondor headnodes are public ones, //to access Hypatia from outside// you will need a personal **Grid Certificate** (often referred to as X.509 cert), and a **gsi-enabled ssh** client. Please see [[confluence:clusters:hypatia:grid_certificates_and_gsi_ssh|Grid Certificates and GSIssh]]  for details.
**Also be aware that port 2222 must be used for gsissh access.** //(I know that recent macoses have issues with that, and I'm aware of the terrible state of gsi-openssh.)//

There is no such limitation for access from the AEI internal network, you may use normal **ssh** (with a key pair) then.

With a valid AEI account, you may also use **VPN** (which effectively adds your computer to the internal network).

  * (This is becoming obsolete:) Apply for a certificate if you don't have one yet (or it expired).
    * A LIGO certificate will do **but will stop working the day you leave LIGO**.
    * If you are employed by the AEI but not working for LIGO (or do not want to use the LIGO certificate), you may submit your request [[https://gridka-ca.kit.edu/|here]]. Fill in / print the PDF from the start page, and come and see me (or one of the other RAs) afterwards, to present your ID card or passport. //Note that KIT is phasing out their service, which will be operated until May 2023.//
  * If you have your certificate ready, **or** are at the AEI (this includes VPN) you may apply for a user account.

  * In the process of account creation, you will be added to the //hypatia-users// mailinglist - which will be used for any further discussion about Hypatia.
    The greeting email is your confirmation that account setup has been finished.


==== Please provide some more information:====

  * For external users only:
    * Will you join AEI in the near future? (If so, when?) //(The rationale behind this is that information will be copied from AEI's user database, to avoid UID clashes)//
    * Your preferred account name (if not defined by the above)
  * For users with an AEI account, that username will be used by default (**but you may change it - right now**).

  * Your full name (e.g. as shown in the LSC roster) contact details
  * Your host (AEI staff member overseeing your activities) - important if you're a guest or about to leave soon
  * Your email address (no googlemail please)
  * LSC membership? (I can look this up in the roster, of course)
  * If you got an AEI contract, I'll look up the expiration date, otherwise I'll make up one (extendable)
  * If applicable: Your X.509 certificate subject (the one with "CN=Your Name", can be the output of ''grid-cert-info -subject'', or of ''grid-proxy-info -issuer'' **if the output contains your name, please double-check**)
  * Send your **ssh public key** //as an attachment// (unless you prefer to use GSIssh only)

  * For approval, please provide the scientific reason, and an estimate of the usage of the cluster.

Once again: We're using **gsissh** to access the public **port 2222** on the head nodes. **ssh** access to **port 22** is only open from **within the AEI network**.

Some initial information about Hypatia can be found at https://hypatia.aei.mpg.de

===== Important: =====
**To apply for a Hypatia account, send a request to [[hpc-support@aei...]] with the necessary information, and CC [[alessandra.buonanno@aei...]] for approval!**

For access to the GPU machines, also [[jonathan.gair@aei...]] must approve.

Note: @aei... means @aei.mpg.de, email addresses have been truncated for spam protection!

(last modified by Steffen Grunewald on 27 Nov 2023)