[Users] Acesso, Reunião

Wed Feb 12 10:49:59 CST 2025

Olá,

Hoje haverá reunião?
Caso sim, que horas?
Haverá pessoas que também falam idioma português.

Valdir Vitalino
+55 11 98923-1559

Em ter., 11 de fev. de 2025 15:00, <users-request at einsteintoolkit.org>
escreveu:

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> Today's Topics:
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>    1. Agenda for Thursday's Meeting (rhaas at illinois.edu)
>    2. Re: installation of ET on a cluster (IOSIF PANAGIOTIS)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Mon, 10 Feb 2025 15:18:02 -0600
> From: rhaas at illinois.edu
> To: users at einsteintoolkit.org
> Subject: [Users] Agenda for Thursday's Meeting
> Message-ID: <E1thbAI-00000001oBn-0FQr at ekohaes8.ncsa.illinois.edu>
> Content-Type: text/plain; charset="ANSI_X3.4-1968"
>
> Please update the Wiki with agenda items for Thursday's meeting. Thanks!
>
> https://docs.einsteintoolkit.org/et-docs/meeting_agenda
>
> --The Maintainers
>
>
> ------------------------------
>
> Message: 2
> Date: Tue, 11 Feb 2025 12:02:36 +0000
> From: IOSIF PANAGIOTIS <PANAGIOTIS.IOSIF at units.it>
> To: Roland Haas <rhaas at illinois.edu>
> Cc: "users at einsteintoolkit.org" <users at einsteintoolkit.org>
> Subject: Re: [Users] installation of ET on a cluster
> Message-ID:
>         <
> GV1P250MB08577CB34D2E4C4D4AAFBE3FF9FD2 at GV1P250MB0857.EURP250.PROD.OUTLOOK.COM
> >
>
> Content-Type: text/plain; charset="iso-8859-1"
>
> Dear Roland,
>
> thank you for gathering these links, they are indeed useful to point me in
> the right direction.
>
> I also found this seminar talk by Erik Schnetter on using Spack to install
> the ET dependencies.
> I also copy it in this thread, so that it is grouped with the other
> resources you gathered:
>
> https://einsteintoolkit.org/seminars/2022_05_19/index.html
>
> I will work my way through this material and let you know if I encounter
> other problems.
>
> Best,
> Panagiotis
>
>
> ________________________________
> From: Roland Haas
> Sent: Friday, February 7, 2025 6:41 PM
> To: IOSIF PANAGIOTIS
> Cc: users at einsteintoolkit.org
> Subject: Re: [Users] installation of ET on a cluster
>
> Hello Panagiotis,
>
> Thank you for your inquiry.
>
> This may help:
>
> http://einsteintoolkit.org/seminars/2022_02_24/index.html
>
> https://youtu.be/8dnOfQIk32c?feature=shared
>
> whose slides are:
>
> https://github.com/rhaas80/2024_LSU/blob/main/CactusBuildSytemTour.ipynb
>
> There's also some advanced simulation factory docs here:
>
> https://docs.einsteintoolkit.org/et-docs/Configuring_a_new_machine
>
> (linked on
> https://docs.einsteintoolkit.org/et-docs/Main_Page#Documentation)
>
> > The CactusTutorial jupyter notebook for new users does not tackle
> > this scenario in detail. Understandably, it would be unrealistic to
> > provide generic instructions that cover all cluster configurations.
> > How about guidelines that cover some common scenarios though? (e.g. a
> > cluster that organizes libraries and packages as modules and also
> > uses the Spack manager)
>
> See above. Spack is tricky and often does not work out of the box
> unless one really builds everything from scratch. Some of the ET users
> have experience and they may be able to provide help.
>
> > Is there some documentation that gives basic guidelines as to how
> > setup ET on a cluster aimed at a user profile that has (obviously) no
> > previous experience with ET, simfactory etc and (quite possibly) also
> > limited experience on how HPC clusters are setup, how packages are
> > installed etc?
>
> The recording of the seminar (and the slides therein) tries to do that.
> I would give it a try.
>
> > This request stems from the fact that I have been discovering
> > little-by-little and through trial-and-error that e.g. running
> > `./simfactory/bin/sim setup-silent` as outlined in the
> > CactusTutorial,  makes no sense for the case of a cluster. In my
> > opinion, and if I may offer a suggestion, it would be a good idea to
> > underline this distinction in a future revision of the tutorial.
>
> Unfortunately each cluster is different and often one needs specific
> detailed workarounds. A lot of that unfortuntely comes down to
> experience.
>
> >
> > Furthermore, another crucial step to setup ET on a cluster seems to
> > be that the user must create "manually" their respective
> > "<my_cluster>.cfg" and "<my_cluster>.ini" files and possibly the
> > corresponding run and submit scripts. Could you confirm that this is
> > indeed the case? What is the recommended course of action to do this?
> > Maybe one should start by copying a sample ".cfg" file and amend it
> > with information found from their cluster's technical documentation?
>
> I'd start with an existing cluster that uses the same compiler / queuing
> system. Queueing system these days should always be SLURM and one can
> then try and see if the cluster supports the GNU compilers which should
> make things easy.
>
> The only libraries that one really needs from the cluster are MPI.
> Everything else can be built by the EinsteinToolkit if needed (by
> setting the various FOO_DIR variable to the string BUILD).
>
> > I can follow up with more specific questions about problems I
> > encountered during my so far unsuccessful attempts to install ET on a
> > cluster, but to avoid people having to repeat explanations already
> > given in the past, I would like first to make sure that I am not
> > missing some source of information/documentation already available.
>
> There is no real good docs unfortunately. Even the ones that I had
> linked above are (were, they are now) not collected in a single place.
>
> > Also, in the long shot that someone has already installed ET on one
> > of the CINECA clusters in Italy (I am trying to install ET on the
> > Leonardo cluster), I would be grateful if you could share your
> > insights!
>
> Bruno Giacommazzo installed the ET on some of the CINECA clusters in the
> past. I would try and reach out to him and his group at Milan. The
> newest machine still in simfactory is marconiA3 which however is
> already quite old. He also is subscribed to this mailing list.
>
> Yours,
> Roland
>
> --
> My email is as private as my paper mail. I therefore support encrypting
> and signing email messages. Get my PGP key from http://pgp.mit.edu .
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