Present: Chris, Eloisa, Erik, Helvi, Ian, Sam, Roland, Yosef, Bill, Gabrielle
NixOS: * package manager for Cactus * works a bit different from eg dpkg or rpm package manager instead it is geared towards the user that installs packages * allows sub-projects with different sets of packages (like modules) which can roll back previous OS * can be used on Supercomputers and laptops. Erik tried on Ubuntu and OSX where things seems to work mostly fine. Works with pseudo-packages for intel compilers. Still some issues. Has currently growing set of packages (10s of thousands). * needs some polishing to make fully usable * Erik will push a number of scripts into the CactusUtils scripts directory * Erik will give a hands-on presentation next week if there is time * NixOS aims at reproducibility by beginning to install specific versions of compilers so everything should be portable * link is: https://docs.einsteintoolkit.org/et-docs/meeting_agenda Youtube channel: * currently have a couple of playlists from schools and past workshops * please have a look to make sure eg you like the playlist title * want to promote this on the ET website * https://www.youtube.com/channel/UC8IObWZ7_wEbWnbIKVIQRYQ * currently have playlist by institution, suggestion to also have some per type of object * can likely have "feature" videos that are shown more prominently * suggest sending submission of videos to [email protected] or [email protected] * incorporate youtube video into cycler Help optimization from BSC: * https://pop-coe.eu/services * PRACE offers code optimization services, and since Helvi has a large PRACE grant this may be something to take advantage of * Gabrielle mentioned that NCSA has connections to NAG for optimization as well * would be good to have a EU counterpart to the efforts in Canada and the US, also in connection Cost Action * what works best if there is a particular science driver or interest is behind it so that one has a usage case that one wants to optimize * if linked to Helvi's science project would be linked to her science goal ** multiple issues affect optimization ** different for for deep AMR runs and wide shallow runs * suggest to have a phone call between ET person(s) and center. Needs to have commitment of time by center as well. * Ian would be interested, Helvi would be interested, Erik would be interested * suggest having a common machine to test things on (Marenostrum) * BSC is part of JLESC which includes NCSA, Roland to find out what is involved * good project for optimization working group ET "starting body" for new users * reduce barriers for new users to get involved * email list suggestion was for "buddy" system to pair a new user with a more experienced user * had "virtual office hours" in the past that were however not very well attended * to revive suggest some sign up procedure * make sure that the barrier is low and that there is no perception of people being inapproachable. * announce conference attendance eg on ET website and/or facebook page * action item: link "news" and/or other changing page on starting page to document that we are not yet dead. Add facebook page and twitter feed to news page * action item: added new users to education and communication working group * action item: NCSA post communication (undergraduate level) position Next week: * ET EU workshop post-workshop discussion. Material is here: https://docs.einsteintoolkit.org/et-docs/meeting_agenda#2017-10-23 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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