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Einstein Toolkit Meeting Reminder
by Roland Haas 27 Feb '17

27 Feb '17

Hi Please consider joining the weekly Einstein Toolkit phone call at 9:30 am US central time on Mondays. As usual, you can find instructions how to join on the following web site: http://einsteintoolkit.org/community/support/ We use a Google hangout, using this https://hangouts.google.com/call/yhqwnfyq4jakffiqetzwdyoxzqe URL if it is still functioning on Monday otherwise I will announce a new one on this list about 15 minutes before the meeting. Due to Mardi Gras (and Fastnacht or your local equivalent) we may have reduced attendance. Topics to cover (please reply on the mailing list to suggest extra ones): * status of ET on comet * testsuite status * (summer) student projects involving the ET Roland Haas -- My email is as private as my paper mail. I therefore support encrypting and signing email messages. Get my PGP key from http://keys.gnupg.net. _______________________________________________ Users mailing list Users(a)einsteintoolkit.org http://lists.einsteintoolkit.org/mailman/listinfo/users

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web-development session postponed
by Frank Loeffler 24 Feb '17

24 Feb '17

Hi everyone, I am sorry, but I am unable to host the web-development session today. Quite likely I'll re-schedule it some time next week. Frank

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Is "sudo ln -sf libmpichcxx.so libmpicxx.so" safe?
by 赵志超 23 Feb '17

23 Feb '17

Dear all, I am using Scientific Linux 7, and I get an error when I try to building the toolkit: " /usr/bin/ld: cannot find -lmpicxx /usr/bin/ld: cannot find -lmpi " It seems that the library libmpi is missed, but I have installed mpich and mpich-devel and mpich-autoload. And there exist "libmpichcxx.so" and "libmpich.so". So I try to run this command "sudo ln -sf libmpichcxx.so libmpicxx.so" and "sudo ln -sf libmpich.so libmpi.so" and the build has done. I want to know if this operation safe? Will it have some harmful effect on the result of EinsteinToolkit?

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adding inner refinement levels with Carpet
by Miguel Zilhão 22 Feb '17

22 Feb '17

hi all, i was wondering whether there is a way to add inner refinement levels with CarpetRegrid2 (or CarpetRegrid) as a simulation progresses. let's say that i have some configuration that collapses to a black hole, and i want to keep resolving accurately the inner region. is there some way for me to tell CarpetRegrid to add inner levels whenever a certain condition is fulfilled, ie, enough time elapses, or some grid quantity (like the lapse) grows beyond a certain value? thanks, Miguel

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Thorn documentation on homepage
by Jens Mahlmann 22 Feb '17

22 Feb '17

Dear all, I have been trying to access the thorn documentation on the homepage this morning. I keep receiving "Not found" prompts. Sorry to use this channel - however, I did not find a webmaster on the homepage for direct contact. Thank you so much and my best! Jens

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CarpetRegrid2 Warnings
by Gwyneth Allwright 21 Feb '17

21 Feb '17

Hi All, My BBH simulation produces warnings that look like this: WARNING level 1 from host srvslshpc605.uct.ac.za process 8 while executing schedule bin (none), routine (no thorn)::(no routine) in thorn CarpetRegrid2, file /opt/exp_soft/EinsteinToolkit/Cactus/configs/ET/build/CarpetRegrid2/regrid.cc:389: -> Could not enforce grid structure properties in this round, starting another round Could anyone tell me what this means and how to fix it? Thanks, Gwyneth

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CUDA support in McLachlan
by Haas, Roland 20 Feb '17

20 Feb '17

Hello all, does McLachlan/Kranc/ET have support for CUDA or only OpenCL? I am mostly asking since I would like to try and see how hard it would be to couple the RHS computation in ML to an existing CUDA PDE framework. 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://keys.gnupg.net.

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Is there a call today?
by Khamesra, Bhavesh 20 Feb '17

20 Feb '17

Hey Frank, Is there a call today? For some reason, I am still not getting the email with the hangout link. Could you please also guide me which mailing list I should subscribe to for this? Sorry for inconvenience. Thanks, Bhavesh ............................. Bhavesh Khamesra Graduate Student Centre of Relativistic Astrophysics Georgia Institute of Technology

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meeting minutes for 2017-02-20
by Roland Haas 20 Feb '17

20 Feb '17

Present: Frank, Roland, Eliu, Gwyneth, Peter, Steve, Ian, Bhavesh, Vassilios CT_Elliptic: * NHwave coastal code, would need an elliptic solve be done at every timestep which is a Poisson equation * Steve and Eloisa to interact directly, have the Poisson equation as example in gallery Tickets: * not sure if MoL has been made to work yet, will make minimal revert to make it compile again Website: * will go life with new website * some rendering issues remain. Will try and fix them as we go along. * content discussion on Friday Feb 24th 2017 at 10am CT / 11am ET / 5pm CEST using Google hangout. Frank will send out an hangout URL 15 minutes before Mailing list questions: * try and make sure to identify unanswered ones before the call Test failures: * Roland has to still look into the NaNChecker failures * Roland observed again file corruption on comet and gordon * compact_format is not sufficient to produce processor independent output if splitting in components happens in the x or y direction since then ouput is first by component then in z then in y then in x Roland will host next week's call. 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://keys.gnupg.net.

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help
by zitouni hannachi 20 Feb '17

20 Feb '17

Hi, I did not find my results in the directory /simulations/ when I launched the einstein toolkit sim on qb2 . Thanks Dr Zitouni Hannachi

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