Users September 2017

users@lists.einsteintoolkit.org

11 participants
17 discussions

Re: [Users] [ET Trac] [Einstein Toolkit] #1326: running loopcontrol on strange number of threads fails
by Erik Schnetter 11 Apr '19

11 Apr '19

Do you have a backtrace? -erik On Sunday, March 22, 2015, Einstein Toolkit < trac-noreply(a)einsteintoolkit.org> wrote: > #1326: running loopcontrol on strange number of threads fails > ------------------------------------+--------------------------------------- > Reporter: rhaas | Owner: > Type: defect | Status: new > Priority: minor | Milestone: > Component: EinsteinToolkit thorn | Version: > Resolution: | Keywords: LoopControl > ------------------------------------+--------------------------------------- > > Comment (by rhaas): > > This still happens even with current (Sun Mar 22 18:46:21 CET 2015) trunk, > though failure looks a bit different now: > {{{ > actus_sim: > /data/rhaas/postdoc/gr/ET_trunk/configs/sim/build/LoopControl/loopcontrol.cc:312: > T {anonymous}::divexact(T, T) [with T = int]: Assertion `i % j == 0' > failed > }}} > > -- > Ticket URL: <https://trac.einsteintoolkit.org/ticket/1326#comment:1> > Einstein Toolkit <http://einsteintoolkit.org> > The Einstein Toolkit > _______________________________________________ > Trac mailing list > Trac(a)einsteintoolkit.org > http://lists.einsteintoolkit.org/mailman/listinfo/trac > -- Erik Schnetter <schnetter(a)cct.lsu.edu> http://www.perimeterinstitute.ca/personal/eschnetter/

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Agenda for Monday's Meeting
by Steven R. Brandt 30 May '18

30 May '18

Please update the Wiki with agenda items for Monday's meeting. Thanks! https://docs.einsteintoolkit.org/et-docs/meeting_agenda --Steve

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Einstein Toolkit Meeting Reminder
by Steven R. Brandt 27 Nov '17

27 Nov '17

Hi Please consider joining the weekly Einstein Toolkit phone call at 9:30 am US central time on Mondays. For details on how to connect and what agenda items are to be discussed, use the link below. https://docs.einsteintoolkit.org/et-docs/Main_Page#Weekly_Users_Call --Steve

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Re: [Users] Jenkins down due to suspected security compromise
by Ian Hinder 29 Sep '17

29 Sep '17

On Fri, Jun 2, 2017 at 11:25 AM, Ian Hinder <ian.hinder(a)aei.mpg.de> wrote: > Hi all, > > The security team at NCSA have blocked access to the ET Jenkins server due to a suspected security compromise. We are investigating. > > If you have in the past configured a jenkins build node which can be accessed from the jenkins master via ssh (i.e. you have added the jenkins public ssh key to an authorized_keys file), then you should immediately remove this key. > > Note that none of the jenkins build nodes apart from the one also hosted at NCSA was working at the time, so it's unlikely that any further attack was possible to those machines. > > We have backups from before the incident, so assuming we can fix the vulnerability, we should be able to get the system up and running in a few days. Hi, A quick update: I have recreated the Jenkins master and build nodes from backups, and have the new machines running. I am still waiting to hear from the NCSA security team concerning exactly what the vulnerability was. I can't make Jenkins available publicly until we are confident that the vulnerability is not still exposed. The same 5 tests that had been failing before are still failing, but I don't see any failures in McLachlan. GRHydro.GRHydro_test_shock_weno/1procs GRHydro.GRHydro_test_shock_weno/2procs SphericalHarmonicRecon.regression_test/2procs SphericalHarmonicReconGen.SpEC-dat-test/2procs SphericalHarmonicReconGen.SpEC-h5-test/2procs -- Ian Hinder http://members.aei.mpg.de/ianhin

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Re: [Users] SPH in einstein toolkit
by Philip Chang 26 Sep '17

26 Sep '17

Hi Erik, When you say most people, what do you mean? Is there an implementation of SPH in a true dynamical spacetime? I know there are a few under the assumption of conformal flatness, but I am not aware of anyone with SPH in dynamical spacetime. Related to this, is there a reference I can look at which write out the hydro equations in detail. It is not immediately obvious to me that Rosswog's paper writes it as a hydrodynamic equation on the coordinate manifold with lapse and shift. Cheers, Phil On 9/26/17 6:38 PM, Erik Schnetter wrote: > Phil > > Most people let SPH particles move on the background ("coordinate") > manifold, with equations of motion similar to those for the > hydrodynamics field equations, i.e. taking lapse and shift into > account. This is a straightforward approach, as e.g. the shape of a > particle remains fixed in coordinate shape. The simplicity of this > approach is very attractive. > > -erik > > > On Tue, Sep 26, 2017 at 3:29 AM, Philip Chang <chang65(a)uwm.edu > <mailto:chang65@uwm.edu>> wrote: > > Dear developers, > > I saw that there was a discussion back in 2015 in regard to SPH in the > Einstein toolkit. Have any progress been made in this regard? I am > especially interested in how the sph particles move (and what it means > to move) in a 3+1 split. > > Cheers, > > Phil Chang > > _______________________________________________ > Users mailing list > Users(a)einsteintoolkit.org <mailto:Users@einsteintoolkit.org> > http://lists.einsteintoolkit.org/mailman/listinfo/users > <http://lists.einsteintoolkit.org/mailman/listinfo/users> > > > > > -- > Erik Schnetter <schnetter(a)cct.lsu.edu <mailto:schnetter@cct.lsu.edu>> > http://www.perimeterinstitute.ca/personal/eschnetter/ >

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SPH in einstein toolkit
by Philip Chang 26 Sep '17

26 Sep '17

Dear developers, I saw that there was a discussion back in 2015 in regard to SPH in the Einstein toolkit. Have any progress been made in this regard? I am especially interested in how the sph particles move (and what it means to move) in a 3+1 split. Cheers, Phil Chang

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meeting minutes for 2017-09-25
by Roland Haas 25 Sep '17

25 Sep '17

Present: Steve, Roland, Peter, Sam, Bill, Vassili, Erik, Gabrielle, Yosef Cactusmaint email list: * mentioned all over the ET place, but no longer exists * Steve will get cactusmaint working again * Steve and Gabrielle will at leisurely pace go through page and find places where users(a)cactuscode.org would be better * task force: Steve, Erik, Gabrielle, Roland to define Cactus projects vs ET projects Historical pictures for Cactus: * call for photos still ongoing send to Gabrielle https://www.dropbox.com/s/mpmcwmw6ewdklkf/EdFest.mp4?dl=0 ET demo machine at NCSA: * as of this morning is responding to web-access: http://www.einsteintoolkit.nationaldataservice.org/ Working group updates * Gabrielle added material to the wiki * first one ready here https://docs.einsteintoolkit.org/et-docs/Data_Dependant_Task_Scheduler * working group definitions here https://docs.einsteintoolkit.org/et-docs/ET_Working_Group_Policies_and_Proc… * have meetings for this at beginning of month presync scheduler: * Sam has presync code working with ML_BSSN Next release * regular schedule would call for November release * multiple dislikes for this * next date would be February * what to include in release? ** two new thorns: GiRAFFE, RNDID ** SI2 deliverables * need release manager for schedule, wiki page etc ET call * Roland will host call on Oct 2nd * likely no call on Oct 9th 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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meeting minutes for 2017-09-18
by Roland Haas 18 Sep '17

18 Sep '17

Present: Bill, Chris, Etik, Gabrielle, Sam, Steve, Yosef, Roland, Qian, Ian, Vassili, Peter, Tutorial machine at NCSA: * have final confirmation, about to deploy instance, should happen this week * contact current outstanding requests about current status * Roland suggests to take down tutorial page using QueenBee and instead point to Simplified tutorial instead for the time being Working groups * need to pick this up, last action was sending around working group document * Ian suggests working group for lower level infrastructure in the ET * add to next week's agenda ET workshop in Mallorca: * creating video of early days of Cactus, request old photos Supercomputing: * Steve is going, will have poster about Cactus * not ET related demo planned, no planned use of Cactus * NCSA has demo (Wolfram and NVIDIA) about deep learning with Daniel George and Eliu Huerta KNL status update * Peter has his cosmology code running on KNL, gets fairly decent performance * this code is quite different from eg McLachlan 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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cactusmaint@cactuscode.org
by Steven R. Brandt 18 Sep '17

18 Sep '17

The cactusmaint(a)cactuscode.org email address seems to not work. Do we want to fix it, or just steer users to this list? --Steve

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Splitting CarpetHDF5 data into smaller domains
by Ashok Choudhary 18 Sep '17

18 Sep '17

Hi, I have a big CarpetHDF5 3D data file which I want to visualize with ViSit. I am only interested in a small subset of complete data. Is there any HDF5 utility within einsteintoolkit which I can use to extract data in a smaller sub domain ? Thank you, Ashok

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Users September 2017