Users May 2018

users@lists.einsteintoolkit.org

17 participants
31 discussions

Einstein Toolkit Meeting Reminder
by Steven R. Brandt 31 Oct '19

31 Oct '19

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] [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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GCC 8 -- may need to update Cactus configure script
by Erik Schnetter 26 Jun '18

26 Jun '18

GCC 8 was just released. The release notes contain this in their fine print: "Character variables longer than HUGE(0) elements are now possible on 64-bit targets. Note that this changes the procedure call ABI for all procedures with character arguments on 64-bit targets, as the type of the hidden character length argument has changed. The hidden character length argument is now of type INTEGER(C_SIZE_T)." In other words, strings can now be longer than 2e9 characters. This is a good change. To make this possible, the length of strings is now passed as ptrdiff_t instead of as int, and consequently, the C/Fortran interoperability mechanism in Cactus may need to be updated. Without this, there might be a segfault e.g. when calling CCTK_INFO from Fortran. (It might also be that things just work most of the time, although this would be an unreliable coincidence.) The respective include file that will need to be modified is "cctk_FortranString.h" in the flesh. -erik -- Erik Schnetter <schnetter(a)gmail.com> http://www.perimeterinstitute.ca/personal/eschnetter/

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update on wiki login
by helvi witek 18 Jun '18

18 Jun '18

Dear all, is there an update on how to access our wiki? I just tried to add the meeting minutes of the ET Working Group "Cosmology and Particles" call and was asked to login. When trying to create an account I just get a "reCAPTCHA V1 is shutdown" message. Is there a workaround that I missed? Incidentally, I tried to add this question to the ticket https://trac.einsteintoolkit.org/ticket/2135 but got an error "Submission rejected as potential spam" when I submitted the comment. cheers, Helvi =========================================== Dr. Helvi Witek Royal Society University Research Fellow Theoretical Particle Physics and Cosmology Department of Physics King's College London ===========================================

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problems of reproducing the simulation of binary neutron star with different mass
by 林家暉 13 Jun '18

13 Jun '18

Dear whom it may concern, I am trying to reproduce the simulation of binary neutron star (http://einsteintoolkit.org/gallery/bns/index.html) with different mass. I use Lorene code to produce the initial data . The parameter files I used is locate in /Lorene/Codes/Bin_star/Parameters/Polytrope_irrot/Test_GR . And I changed central enthalpy of each star in par_init.d to get different mass (Is there other way I can get different mass?). And then I simulate with the ET. However I met some problems: 1.I requested 48 cores with 10 hours to run the code , however the code terminated after running ~4 hours. And the end of .err file reads: cactus_sim: /global/u1/c/chlin/Cactus/arrangements/Carpet/Carpet/src/helpers.cc:275: int Carpet::Abort(const _cGH *, int): Assertion `0' failed. cactus_sim: /global/u1/c/chlin/Cactus/arrangements/Carpet/Carpet/src/helpers.cc:275: int Carpet::Abort(const _cGH *, int): Assertion `0' failed. Rank 0 with PID 47930 received signal 6 Writing backtrace to nsnstohmns/backtrace.0.txt Rank 1 with PID 47931 received signal 6 Writing backtrace to nsnstohmns/backtrace.1.txt cactus_sim: /global/u1/c/chlin/Cactus/arrangements/Carpet/Carpet/src/helpers.cc:275: int Carpet::Abort(const _cGH *, int): Assertion `0' failed. cactus_sim: /global/u1/c/chlin/Cactus/arrangements/Carpet/Carpet/src/helpers.cc:275: int Carpet::Abort(const _cGH *, int): Assertion `0' failed. Rank 2 with PID 13239 received signal 6 Rank 3 with PID 13240 received signal 6 Writing backtrace to nsnstohmns/backtrace.2.txt Writing backtrace to nsnstohmns/backtrace.3.txt srun: error: nid05930: tasks 2-3: Aborted srun: Terminating job step 9192104.0 srun: error: nid05920: tasks 0-1: Aborted The code is aborted without completing the whole process until the merger. How can I perform the complete process? 2. When I use visit to do the visualization ,I found the file rho.xy.h5 only has half of the whole simulation as : [cid:e66a53d5-d406-4599-997f-00e90a864dc0] The tutorial(scripts.tar.gz<http://einsteintoolkit.org/gallery/bns/scripts.tar.gz>) tells that I should use symmetric reflection to perform the whole visualization. However I cannot use this method since I simulated binary star with different mass . So there is no symmetry. How can I get the whole picture instead of only half ? Thank you. Best regards, Chia-Hui Lin

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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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Re: [Users] Toolkit
by ian.hinder＠aei.mpg.de 30 May '18

30 May '18

> On 30 May 2018, at 15:35, Feyisso Sado <bsfeyiso(a)gmail.com> wrote: > > Dear Ian Hinder > > Many Thanks > > I'm searching google, but still not resolved > > My Ubuntu version: Ubuntu 14.04.5 LTS > and > curl --version: curl 7.52.1 (x86_64-pc-linux-gnu) libcurl/7.52.1 OpenSSL/1.0.2l zlib/1.2.8 > Protocols: dict file ftp ftps gopher http https imap imaps pop3 pop3s rtsp smb smbs smtp smtps telnet tftp Hi, (Please can you leave users(a)einsteintoolkit.org <mailto:users@einsteintoolkit.org> in the CC, with "reply all", so that others will benefit from and contribute to the discussion? Thanks!) OK, that all looks good. This is weird. Can you check that the right host is being connected to with host raw.githubusercontent.com <http://raw.githubusercontent.com/> and also that you can connect using openssl: openssl s_client -connect raw.githubusercontent.com:443 You should see something like Verify return code: 0 (ok) at the end. (Use ctrl-C to exit from the connection). If you get some error message, please post it here. > > With Best Regards!!! > ------------------------------------------------------------------- > Feyiso Sado Bedecha (PhD), Student > Addis Ababa University, Department of Physics > Cell Phone: +251910626090 <tel:%2B251911089463> > E-mail: bsfeyiso(a)gmail.com <mailto:bsfeyiso@gmail.com> > P.O.Box: 1176 > Ethiopia > > On Tue, May 29, 2018 at 11:43 PM, <ian.hinder(a)aei.mpg.de <mailto:ian.hinder@aei.mpg.de>> wrote: > > >> On 26 May 2018, at 08:06, Feyisso Sado <bsfeyiso(a)gmail.com <mailto:bsfeyiso@gmail.com>> wrote: >> >> After installing all requirements, I just typed the following commands in Ubuntu terminal: >> >> !curl -kLO https://raw.githubusercontent.com/gridaphobe/CRL/ET_2018_02/GetComponents <https://raw.githubusercontent.com/gridaphobe/CRL/ET_2018_02/GetComponents> >> !chmod a+x GetComponents > >>> Due to my machine failure I'm reinstalling Toolkit, but I faced the following error. >>> curl: (35) error:140770FC:SSL routines:SSL23_GET_SERVER_HELLO:unknown protocol >>> > > Hi, > > I copied that command and ran it on Mac OS and Linux, and it worked OK. What version of Ubuntu are you using? You can get this from the output of > > cat /etc/issue > > Can you send the output of > > curl --version > > A quick google search says that that particular error message occurs if you try to access an http server with https. Is it possible that there is some firewall or redirection happening on your network to prevent you from accessing https servers? > > -- > Ian Hinder > http://members.aei.mpg.de/ianhin <http://members.aei.mpg.de/ianhin> > -- Ian Hinder http://members.aei.mpg.de/ianhin

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ET Workshop 2018: Registration closing on June 1st
by Khamesra, Bhavesh 30 May '18

30 May '18

Hi everyone, this is the last reminder for registration for North American ET workshop 2018. The registration closes this Friday (June 1st, 2018). Please complete the registration if you are plan to attend the workshop and haven't done so. Then workshop will be hosted at Georgia Tech from June 18th-20th. We also have some travel funds available for any participants who need financial support. If you wish to apply for these funds, please submit an application on the registration page for the same. The last date of application is also June 1st, 2018. You can find more information about registration here - http://et-workshop18.physics.gatech.edu/register/ Please let us know if you have any questions. Thanks, Bhavesh ............................. Bhavesh Khamesra Graduate Student Center of Relativistic Astrophysics Georgia Institute of Technology

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Re: [Users] Toolkit
by ian.hinder＠aei.mpg.de 29 May '18

29 May '18

> On 26 May 2018, at 08:06, Feyisso Sado <bsfeyiso(a)gmail.com> wrote: > > After installing all requirements, I just typed the following commands in Ubuntu terminal: > > !curl -kLO https://raw.githubusercontent.com/gridaphobe/CRL/ET_2018_02/GetComponents <https://raw.githubusercontent.com/gridaphobe/CRL/ET_2018_02/GetComponents> > !chmod a+x GetComponents >> Due to my machine failure I'm reinstalling Toolkit, but I faced the following error. >> curl: (35) error:140770FC:SSL routines:SSL23_GET_SERVER_HELLO:unknown protocol >> Hi, I copied that command and ran it on Mac OS and Linux, and it worked OK. What version of Ubuntu are you using? You can get this from the output of cat /etc/issue Can you send the output of curl --version A quick google search says that that particular error message occurs if you try to access an http server with https. Is it possible that there is some firewall or redirection happening on your network to prevent you from accessing https servers? -- Ian Hinder http://members.aei.mpg.de/ianhin

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Problems of the Einstein Workbench
by 徐泽坤 29 May '18

29 May '18

Hello all, I'm trying to work out the simulation of the binary neutron star in the Einstein toolkit gallery https://einsteintoolkit.org/gallery/bns/index.html using the Einstein Workbench. But what should I do after compiling using ./simfactory/bin/sim build --thornlist thornlists/nsnstohmns.th ? I have tried to use command like %cd ~/Cactus !./simfactory/bin/sim create-run nsnstohmns \ --parfile=par/nsnstohmns.par --procs=2 --num-threads=1 --ppn-used=2 --walltime=8:0:0 | cat but there is something wrong. The outcome has been sent. Thanks in advance. Yours, Zekun

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Users May 2018