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Meeting Minutes 2020-09-03
by Gabella, William E 03 Sep '20

03 Sep '20

Present: Bill G, Yosef Z, Roland H, Ken S, Peter D, Zach E, Steve B, Peter S, Federico C, Atul Chair: Yosef Minutes: Bill [short agenda] * Peter S, request to add another plot for the Binary Black Hole example. Yosef, what about the ringdown ramping up at the end? Peter, just used the POWER routines. Choice of mass determines the timescale. Roland, M_Adm early is 1.0, or after GWs pass is 1.0. Either choice is defensible. LIGO and ET make the opposite choice. Style: Be Sensitive to blue-green color blindness; can google for color pallettes. Recent gnuplot (4 and beyond?) has good color palettes for that. * Steve, we have a replacement for cactuscode.org. Current one is on old system and full of stuff that no one wants to maintain. No one liked making it a sub-page off of ET. Ian Hinder built a version on GitHub on Jekyll and has some things missing. Need smaller, easier to maintain website. Yosef, if it is good enough and make it live and let the complainers help fix it. Steve, we should tweak a couple of things: there are a bunch of tickets that talk about what are wrong with it. Some issues to fix to make it live. https://test.cactuscode.org https://github.com/EinsteinToolkit/cactuscode.org/issues?q=is:open+is:issue… * Unanswered Questions mailing list o No one waiting for help. * Open tickets sorted by update time o Roland, #1717 from 2014, about libraries and automatic build which does not pick them up. Suggestion is to build dynamically, but then harder for systems that need static library building (Cray). Proper solution is to have the actual build stage of the libs return build variables. o #2448 remove the support_old_CalcTmunu_mechanism interface to Tmunu, probably the only thing that is visible to people. * Tickets ready for review Any comments? o Roland, a lot have existed for a while. Tmunu mentioned above. #2449 NewRad extrapolate the Gammas (Christoffel) from data interior to the boundary, there is code that grid has min size in all three Cartesian dimensions but fails with Cartoon2D because it will not have that many points (one interior)...because symmetry conditions. This should not do anything for a real run...you need five points. Only effects the extrapolation. o Roland, #2458 Simfactory Done for the correct date. These have a Pull Request and need someone to review the Pull Request. oo Current "policy": More things up for review than people willing to review them, typically if they are there for a while, 2 weeks put in "any suggestions" marker and after another two weeks tey are Pushed in the code. Pure enhancements are not treated this way. They need real second pair of eyes checking them out. o Yosef, should we assign reviewers? Roland, sure, I often give them to Steve to look at. A lot fo these are one line change. Bill will review #2458, Simfactory Done with time. Steve, #2389 make error messages better for checkpoint files, this looks good to him. Steve logged in to the Pull Request and approved the changes. * Working group reports o Zach's IllinoisGRMHD WG update: IllinoisGRMHD is getting a more robust conservative-to-primitives solver, more along the lines of what HARM does. Basically IllinoisGRMHD evolves the entropy as an additional conservative variable, and uses this new variable when the usual conservative-to-primitive solver fails. This adds robustness to modeling highly magnetized, relativistic fluid flows. We'd like to make this update public in a month or so... everything is implemented and we're debugging now. o No other groups reporting. * Other business o Ken Sibel, post-bac researcher with Zach, and will be applying to grad school for CS. Did all the work on the early version on NRPy LaTeX interpreter. Next week may have latest bits in place. REady for testing/experimentation in notebooks. Insert LaTeX equations and will output symbolic expressions for Mathematica and for Pythone etc. Next project is GPU support in NRPy. o Atul, announcement of the virtual conference "Midwest Relativity Meeting 2020"---is the 30th year, Oct 22-24, 2020. Hosted by Notre Dame. Topics from grav physics, num rel, rel astrophysics, cosmology. Abstract submission is open. Can I send an email to the user list. * People to run the call... o Have next weeks volunteers. o Sept 17th: chair Peter D, minutes Steve -- ===================================== William Gabella Research Assistant Professor Department of Physics and Astronomy Vanderbilt University Nashville, TN USA b.gabella(a)vanderbilt.edu (o) 615-343-2713

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.h5 file issue.
by Bilal Hameed 01 Sep '20

01 Sep '20

Dear Users, I am trying to open a .h5 file in jupyter-notebook. Please anyone guide me about reading of HDF files. *_Command;_* import h5py filename = "ct_multilevel-err.h5" with h5py.File(filename, "r") as f: # List all groups print("Keys: %s" % f.keys()) a_group_key = list(f.keys())[0] # Get the data data = list(f[a_group_key]) *_Error;_* IOError Traceback (most recent call last) <ipython-input-12-769b4593257a> in<module>() 1 filename= "ct_multilevel-err.h5" ----> 2with h5py.File(filename, "r") as f: 3 # List all groups 4 print("Keys: %s" % f.keys()) 5 a_group_key= list(f.keys())[0] /usr/local/lib/python2.7/dist-packages/h5py/_hl/files.pyc in__init__(self, name, mode, driver, libver, userblock_size, swmr, rdcc_nslots, rdcc_nbytes, rdcc_w0, track_order, **kwds) 406 fid = make_fid(name, mode, userblock_size, 407 fapl, fcpl=make_fcpl(track_order=track_order), --> 408swmr=swmr) 409 410 if isinstance(libver, tuple): /usr/local/lib/python2.7/dist-packages/h5py/_hl/files.pyc inmake_fid(name, mode, userblock_size, fapl, fcpl, swmr) 171 if swmrand swmr_support: 172 flags|= h5f.ACC_SWMR_READ --> 173fid= h5f.open(name, flags, fapl=fapl) 174 elif mode== 'r+': 175 fid= h5f.open(name, h5f.ACC_RDWR, fapl=fapl) h5py/_objects.pyx inh5py._objects.with_phil.wrapper() h5py/_objects.pyx inh5py._objects.with_phil.wrapper() h5py/h5f.pyx inh5py.h5f.open() *IOError**: Unable to open file (unable to open file: name = 'ct_multilevel-err.h5', errno = 2, error message = 'No such file or directory', flags = 0, o_flags = 0)*

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Agenda for Thursday's Meeting
by users＠einsteintoolkit.org 31 Aug '20

31 Aug '20

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

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Restarting simulations using simfactory
by Atul Kedia 28 Aug '20

28 Aug '20

Hello, I want to restart a simulation to make it run for longer. It currently stopped at the time it was asked it at my par file. It has checkpoints enabled in the par file. I have increased the time in the par file at <sim_name>/output-0000/ and at <sim_name>/SIMFACTORY/par and I tried the commands : simfactory/bin/sim cleanup <sim_name> followed by simfactory/bin/sim run <sim_name> and set the added a line "jobid = 999999" as suggested at : http://lists.einsteintoolkit.org/pipermail/users/2018-September/006528.html and I get the error message : "Error: Internal error: Cannot submit simulation <sim_name> because it is already active" Another email thread I used for reference was this one: http://lists.einsteintoolkit.org/pipermail/users/2018-May/006281.html I am using ET_Mayer with the default simfactory that it comes with (simfactory 2, I think). Any help would be really appreciated. Thank you, -- Atul Kedia PhD student, Physics department, University of Notre Dame.

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Fwd: Fwd: NS matter: Snowmass LOI
by Helvi Witek 28 Aug '20

28 Aug '20

FYI --------------------------------------------- Dr. Helvi Witek Assistant Professor Department of Physics University of Illinois at Urbana-Champaign 247 Loomis Lab 1110 W Green St Urbana, IL 61801 --------------------------------------------- -------- Forwarded Message -------- Subject: Fwd: NS matter: Snowmass LOI Date: Fri, 28 Aug 2020 15:15:20 +0200 From: Tim Dietrich <diet.tim(a)gmail.com> To: Katy Clough <katy.clough(a)physics.ox.ac.uk>, Helvi Witek <hwitek(a)illinois.edu> Hi Katy, Helvi, now our time to send an LOI around :) Can you also forward it to whoever might be interested in it? Thank you very much, Tim ---------- Forwarded message --------- Von: *Tim Dietrich* <diet.tim(a)gmail.com <mailto:diet.tim@gmail.com>> Date: Fr., 28. Aug. 2020 um 14:54 Uhr Subject: NS matter: Snowmass LOI To: <cbc+nsmatter(a)ligo.org <mailto:cbc%2Bnsmatter@ligo.org>>, CBC Group <cbc(a)ligo.org <mailto:cbc@ligo.org>>, <itews(a)lanl.gov <mailto:itews@lanl.gov>> Dear all, In response to the call for the submission of Letter of Intent (LOI) for Snowmass-2021, a few people from the extreme matter group and outside collaborators have also prepared an LOI on the topic ‘*/Compact binaries as probes of dense matter and QCDphase transitions/*’. The overleaf link to the document is here: https://www.overleaf.com/8743961373pphphrhxbgys <https://www.google.com/url?q=https://www.overleaf.com/8743961373pphphrhxbgy…> and a (current) pdf-version is attached. If you would like to support this LOI, please add your name, affiliation, and email address in the author list in alphabetical order at the end of the document, or send us an email. If you have any comments on the draft, please send it via email to someone listed at the top under "contact information", this is easier than directly changing something in the draft (please don't do this). Best wishes, Jocelyn, Michael, Phil, Ingo, Nick, Reed, Tim

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Snowmass 2021 Letter of Interest
by Helvi Witek 27 Aug '20

27 Aug '20

Dear all, We have prepared a letter of interest (LOI) to be submitted to the Computational Frontier (CompF) of Snowmass 2021 entitled "Numerical relativity for next-generation gravitational-wave probes of fundamental physics"; see https://www.overleaf.com/9274281251jnbpqyqjqpfr Snowmass is similar to the US Astro2020 Decadal Survey, although the process is a bit different. For more information see https://snowmass21.org/cosmic/start <https://snowmass21.org/cosmic/start> LOIs are the initial step in the process to help coordinate the writing of White Papers on different topics whose focus will be particle and high-energy physics enabled by current and future facilities (funded or unfunded). If you would like to support the LOI, could you please add your name, affiliation, and your email in the author list in the alphabetical order at the end of the document? If you have any comments on the document, could you please send them to us instead of editing the document yourself? The document will be open until Sunday, 29 August, and submitted to Snowmass soon after. Best wishes Pablo, Geoffrey, and Helvi -- --------------------------------------------- Dr. Helvi Witek Assistant Professor Department of Physics University of Illinois at Urbana-Champaign 247 Loomis Lab 1110 W Green St Urbana, IL 61801 ---------------------------------------------

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-nan output.
by Bilal Hameed 27 Aug '20

27 Aug '20

Dear Users. I am runing --parfile repos/ctthorns/CT_MultiLevel/par/twopunctures.par. ###################################### # Flesh parameters ###################################### Cactus::cctk_run_title = "Solving the Hamiltonian constraint for two punctures with CT_MultiLevel (multigrid setup, FMG) and with TwoPunctures" Cactus::cctk_full_warnings = yes Cactus::highlight_warning_messages = no Cactus::cctk_timer_output = "off" Cactus::terminate = "any" Cactus::cctk_initial_time = 0 Cactus::cctk_final_time = 30 Cactus::cctk_itlast = 200 ############################################################################################# ActiveThorns = "Boundary CartGrid3D CoordBase Slab SymBase" ############################################################################################# CoordBase::domainsize = "minmax" CoordBase::xmin = -40.00 CoordBase::ymin = -40.00 CoordBase::zmin = -40.00 CoordBase::xmax = +40.00 CoordBase::ymax = +40.00 CoordBase::zmax = +40.00 CoordBase::dx = 10 CoordBase::dy = 10 CoordBase::dz = 10 CoordBase::boundary_size_x_lower = 3 CoordBase::boundary_size_y_lower = 3 CoordBase::boundary_size_z_lower = 3 CoordBase::boundary_size_x_upper = 3 CoordBase::boundary_size_y_upper = 3 CoordBase::boundary_size_z_upper = 3 CoordBase::boundary_shiftout_x_lower = 1 CoordBase::boundary_shiftout_y_lower = 1 CoordBase::boundary_shiftout_z_lower = 1 CoordBase::boundary_shiftout_x_upper = 1 CoordBase::boundary_shiftout_y_upper = 1 CoordBase::boundary_shiftout_z_upper = 1 CartGrid3D::type = "coordbase" ################################################################################## ActiveThorns = "IOUtil Carpet CarpetLib CarpetInterp LoopControl CarpetReduce CarpetSlab" ################################################################################## Carpet::adaptive_stepsize = "no" Carpet::schedule_barriers = no CarpetLib::output_bboxes = no Carpet::init_fill_timelevels = "yes" Carpet::domain_from_coordbase = yes Carpet::max_refinement_levels = 5 driver::ghost_size = 3 Carpet::use_buffer_zones = yes Carpet::prolongation_order_space = 5 Carpet::prolongation_order_time = 2 Carpet::convergence_level = 0 Carpet::poison_new_timelevels = yes CarpetLib::poison_new_memory = yes Carpet::output_timers_every = 0 CarpetLib::print_timestats_every = 0 CarpetLib::print_memstats_every = 0 CarpetLib::max_allowed_memory_MB = 12288 ################################################################## ActiveThorns = "CarpetRegrid2" ################################################################## Carpet::grid_structure_filename = "grid_structure.asc" Carpet::grid_coordinates_filename = "grid_coordinates.asc" CarpetRegrid2::num_centres = 1 CarpetRegrid2::num_levels_1 = 4 CarpetRegrid2::radius_1[1] = 50 CarpetRegrid2::radius_1[2] = 25 CarpetRegrid2::radius_1[3] = 12 #CarpetRegrid2::radius_1[4] = 50 #CarpetRegrid2::radius_1[5] = 25 #CarpetRegrid2::radius_1[6] = 12 #CarpetRegrid2::radius_1[7] = 6 ################################# ActiveThorns = "AEILocalInterp" ActiveThorns = "BLAS LAPACK" ActiveThorns = "Fortran" ActiveThorns = "GenericFD" ActiveThorns = "HDF5" ActiveThorns = "InitBase" ActiveThorns = "LocalInterp" ################################# ################################# ActiveThorns = "MoL Time" ################################# MoL::ODE_Method = "RK4" MoL::MoL_Intermediate_Steps = 4 MoL::MoL_Num_Scratch_Levels = 1 Time::dtfac = 0.2 ################################################################################################### ActiveThorns = "CT_MultiLevel CT_Analytic ADMBase ML_BSSN ML_BSSN_Helper CoordGauge StaticConformal TmunuBase ADMCoupling ADMMacros TwoPunctures" ################################################################################################### ADMBase::metric_timelevels = 3 ADMBase::lapse_timelevels = 3 ADMBase::shift_timelevels = 3 ADMBase::metric_type = "physical" ADMBase::initial_data = "twopunctures" ADMBase::initial_lapse = "twopunctures-averaged" ADMBase::initial_shift = "zero" ADMBase::initial_dtlapse = "zero" ADMBase::initial_dtshift = "zero" ADMBase::evolution_method = "ML_BSSN" ADMBase::lapse_evolution_method = "ML_BSSN" ADMBase::shift_evolution_method = "ML_BSSN" ADMBase::dtlapse_evolution_method = "ML_BSSN" ADMBase::dtshift_evolution_method = "ML_BSSN" ADMBase::admbase_boundary_condition = "none" TwoPunctures::par_b = 1.168642873 TwoPunctures::par_m_plus = 0.453 TwoPunctures::par_m_minus = 0.453 TwoPunctures::par_P_plus [1] = +0.3331917498 TwoPunctures::par_P_minus[1] = -0.3331917498 #TwoPunctures::grid_setup_method = "evaluation" TwoPunctures::TP_epsilon = 1.0e-2 TwoPunctures::TP_Tiny = 1.0e-2 TwoPunctures::keep_u_around = "yes" CT_MultiLevel::cycle_type = "FMG cycle" CT_MultiLevel::tol = 1e-12 CT_MultiLevel::omega = 1 CT_MultiLevel::fd_order = 4 CT_MultiLevel::output_norms = "yes" CT_MultiLevel::output_walk = "yes" CT_MultiLevel::nrelsteps_down = 700 CT_MultiLevel::nrelsteps_up = 650 CT_MultiLevel::nrelsteps_bottom = 700 CT_MultiLevel::nrelsteps_top = 650 CT_MultiLevel::topMGlevel = 4 CT_MultiLevel::number_of_equations = 1 CT_MultiLevel::number_of_auxiliaries = 1 CT_MultiLevel::fill_ADM = "yes" CT_MultiLevel::fill_Aij = "Analytic Aij" CT_MultiLevel::boundary_conditions = "TwoPunctures" CT_MultiLevel::compare_to_exact = "yes" CT_MultiLevel::exact_solution_gfname[0] = "TwoPunctures::puncture_u" CT_MultiLevel::exact_offset = -1.0 CT_MultiLevel::inipsi_gfname[0] = "CT_Analytic::testinipsi" CT_MultiLevel::cxx_gfname[0] = "CT_Analytic::testcxx" CT_MultiLevel::cyy_gfname[0] = "CT_Analytic::testcyy" CT_MultiLevel::czz_gfname[0] = "CT_Analytic::testczz" CT_MultiLevel::n0[0] = -7 CT_MultiLevel::c0_gfname[0] = "CT_MultiLevel::ct_auxiliary[0]" CT_MultiLevel::a0_gfname[0] = "CT_Analytic::testa0" CT_MultiLevel::model = "Bowen-York" CT_Analytic::free_data = "Bowen-York" CT_Analytic::ampI = 1 CT_Analytic::ampC = 1 CT_Analytic::massa = 0.453 CT_Analytic::massb = 0.453 CT_Analytic::xa = 1.168642873 CT_Analytic::xb = -1.168642873 CT_Analytic::Pay = 0.3331917498 CT_Analytic::Pby = -0.3331917498 CT_Analytic::other_timelevels = 3 ################################# ActiveThorns = "CarpetIOBasic" ################################# IOBasic::outInfo_every = 1 IOBasic::outInfo_reductions = "norm2" IOBasic::outInfo_vars = " CT_MultiLevel::psi Carpet::physical_time_per_hour " ################################# ActiveThorns = "CarpetIOScalar" ################################# IO::out_dir = $parfile IOScalar::one_file_per_group = yes IOScalar::outScalar_every = 0 IOScalar::outScalar_vars = " " ################################# ActiveThorns = "CarpetIOASCII" ################################# IOASCII::one_file_per_group = yes IOASCII::output_symmetry_points = yes IOASCII::out3D_ghosts = yes IOASCII::out0D_criterion = "divisor" IOASCII::out0D_every = 0 IOASCII::out0D_vars = " " IOASCII::output_all_timelevels = "no" IOASCII::out1D_criterion = "divisor" IOASCII::out1D_every = 1 IOASCII::out1D_vars = " CT_MultiLevel::psi CT_MultiLevel::residual CT_MultiLevel::err ADMBase::metric ADMBase::curv ML_BSSN::ML_log_confac ML_BSSN::ML_ham TwoPunctures::puncture_u " IOASCII::out2D_every = 0 IOASCII::out2D_criterion = "divisor" IOASCII::out2D_vars = " " IOASCII::out3D_every = 0 IOASCII::out3D_criterion = "divisor" IOASCII::out3D_vars = " CT_MultiLevel::psi CT_MultiLevel::coeffs " ################################# Activethorns = "CarpetIOHDF5" ################################# IOHDF5::out_criterion = "divisor" IOHDF5::out_every = 1 IOHDF5::one_file_per_group = yes IOHDF5::compression_level = 0 IOHDF5::out_vars = " CT_MultiLevel::psi CT_MultiLevel::err CT_MultiLevel::residual ML_BSSN::ML_log_confac ML_BSSN::ML_ham TwoPunctures::puncture_u " IOHDF5::checkpoint = "no" ################################# ActiveThorns = "Formaline" ################################# ################################# ActiveThorns = "TimerReport" ################################# TimerReport::out_every = 512 TimerReport::out_filename = "TimerReport" *My ouput shows -nan after first itration. * 0 0.000 | 1.0013688 | 0.0000000 2 0.250 | -nan | 1.128073e+03 4 0.500 | -nan | 1.382569e+03 6 0.750 | -nan | 1.318078e+03 8 1.000 | -nan | 1.399377e+03 10 1.250 | -nan | 1.336436e+03 12 1.500 | -nan | 1.395822e+03 14 1.750 | -nan | 1.364895e+03 16 2.000 | -nan | 1.398991e+03 18 2.250 | -nan | 1.359115e+03 20 2.500 | -nan | 1.393235e+03 I set refinement levels, radius, topMG. no error found in running. Kindly,

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Re: [Users] [ET Trac] #2414: include con2prim framework by Siegel, Moesta et al. into ET
by Vasileios Paschalidis 27 Aug '20

27 Aug '20

Hi Roland, I am cc'ing Pedro to this email. He has made quite a bit progress, but there are some outstanding issues. Perhaps sharing the progress with the community would be useful, since you may have good feedback to give. I will let Pedro decide though. Cheers, Vasilis On Thu, Aug 27, 2020 at 10:58 AM Gabriele Bozzola < trac-noreply(a)einsteintoolkit.org> wrote: > #2414: include con2prim framework by Siegel, Moesta et al. into ET > Reporter: Roland Haas > Status: on hold > Milestone: > Version: > Type: proposal > Priority: major > Component: EinsteinToolkit thorn > > Comment (by Gabriele Bozzola): > > My part of the project consisted of porting GRMHD_con2prim to the Einstein > Toolkit. Given the tremendous work done by Dan Siegel et al, this was > rather straightforward to do. The code is implemented in a thorn > ConservativeToPrimitive that provide a Cactus function con2prim. The code > is tested with a separate thorn that implements the same test implemented > in GRMHD_con2prim. I don’t think that there’s much more to say about this. > > Pedro Espino is actively working on the more challenging problem of > integrating this into IllinoisGRMHD. I will relay the request to him. > > ‌ > > ‌ > > -- > Ticket URL: > https://bitbucket.org/einsteintoolkit/tickets/issues/2414/include-con2prim-… > _______________________________________________ > Trac mailing list > Trac(a)einsteintoolkit.org > http://lists.einsteintoolkit.org/mailman/listinfo/trac > -- Vasileios Paschalidis Assistant Professor Departments of Astronomy and Physics Theoretical Astrophysics Program University of Arizona Tucson https://lavinia.as.arizona.edu/~vpaschal/

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meeting minutes for 2020-08-27
by Roland Haas 27 Aug '20

27 Aug '20

Present: Roland, Atul, Peter D., Bill, Peter S., Yosef, Steve, Miguel, Maria, Zach BBH gallery: Atul and Peter uploaded the suggested changes: http://einsteintoolkit.org/gallery/bbh/index.html * move trajectory and waveform plots earlier * added links to codes used to produce figures (VisIt, MMA, MMA scripts) * some more changes planned but not quite done yet * Peter S. suggested adding an acknowledgement for cluster that was used to produce data (requested by center) * all agree to add ack section, also add link to extra README file with instructions Zoom hosts: * Steve will try to add others as co-hosts new tutorial server: * have switched over to https://etk.cct.lsu.edu * https://etkhub.ndslabs.org points to it * updating tutorial page on ET site now * some cleanup of server still in progress ** Steve is documenting setup ** will create repository with information * Steve calls for more tutorial notebooks questions * HDF5 output ticket https://bitbucket.org/einsteintoolkit/tickets/issues/2451/reg-hdf5-output-o… * no other tickets * no outstanding questions AOB: * Steve updated https://docs.einsteintoolkit.org virtual machine. Removes TLS 1.0, forced old Debian version ** would like to newest version of Debian, but needs updates to packages * Zach reported on LaTeX -> SymPy expression converter. Person working on it returning to work with Zach on September 1st, will go for wide spread testing, will work on GPU cdoe generation afterwards * LSU tutorial recordings: no ETA yet, order of week, we are second on the TODO list. Raw videos are available Next chairs: Yosef Zlochower, Zach Etienne 2 weeks (Sept 10) Next minute takers: Bill Gabella, Miguel Gracia 2 weeks (Sept 10) 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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Reg. HDF5 output of QuasiLocalMeasures variables
by Vaishak P 26 Aug '20

26 Aug '20

Dear All, I am currently facing an issue when attempting to output QuasiLocalMeasures variables in HDF5 (in a BBH simulation similar to the gallery one) files instead of ASCII. I only face this issue when I request any QuasiLocalMeasures variables to be output in IOHDF5. I feel I might have done something silly here. Requesting your help. I am getting the same error message as in 005361 <http://lists.einsteintoolkit.org/pipermail/users/2017-March/005361.html> ( http://lists.einsteintoolkit.org/pipermail/users/2017-March/005361.html). . I am attaching the parameter file, the backtrace and the out and err files from the run. Thanking you in advance -- Vaishak P PhD Scholar, Shyama Prasad Mukherjee Fellow Inter-University Center for Astronomy and Astrophysics (IUCAA) Pune, India

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