Hello Maria, that parameter file uses very low resolution. This is partially what is repsonsible for all that (beautiful but incorrect) ejected material.
It is possible that after a while the leftover star in the center just goes crazy. I would suggest opening the 2d hydrobase-rho.xy.h5 files generated in VisIt to check if anything crazy is going on. If you want to run it for that long I would increase the resolution (decrease grid spacing) in the parfile from: CoordBase::dx = 18.00 CoordBase::dy = 18.00 CoordBase::dz = 18.00 to CoordBase::dx = 9.00 CoordBase::dy = 9.00 CoordBase::dz = 9.00 which gives you a resolution of ~0.140625Msun = 200m over the star. This is still on the low end of "good" resolutions eg see in https://arxiv.org/abs/1212.1191 where Christian and I used ∆x = 0.1875 Msun = 0.278 km, ∆x = 0.15 Msun = 0.222 km and ∆x = 0.12 Msun = 0.176 km for the low, medium, high resolutions respectively. Yours, Roland > Hi, > > I've been running nsnstohmns.par for longer than the set time in the > parameter file, and it fails at time=3913 with the error: > > WARNING level 0 from host trcis001.hpc.wvu.edu process 23 > in thorn CarpetLib, file > /gpfs20/users/mbh0012/Cactus/configs/etk/build/CarpetLib/dh.cc:2103: > -> The grid structure is inconsistent. It is impossible to continue. > > Do I need higher resolution, or /and AHFinder? > > I tried the same parameter again, with higher resolution and disabling the > RotationSymmetry180 and I have those warnings: > > WARNING level 1 from host compute-7.marshall.local process 21 > while executing schedule bin Hydro_Analysis_LocationSearch, routine > Hydro_Analysis::Hydro_Analysis_LocationSearch_Combine > in thorn Hydro_Analysis, file > /home/babiuc/ET_2020_11/Cactus/configs/bns/build/Hydro_Analysis/Hydro_Analysis.c:228: > -> Could not find grid point with maximum density 0.000734882 on grid. > Using old location (11.25,4.75,0). > Could not find grid point with maximum density 0.000734882 on grid. Using old > location (11.25,4.75,0).WARNING level 1 from host compute-7.marshall.local > process 23 > while executing schedule bin Hydro_Analysis_LocationSearch, routine > Hydro_Analysis::Hydro_Analysis_LocationSearch_Combine > in thorn Hydro_Analysis, file > /home/babiuc/ET_2020_11/Cactus/configs/bns/build/Hydro_Analysis/Hydro_Analysis.c:228: > -> > Could not find grid point with maximum density 0.000734882 on grid. Using old > location (11.25,4.75,0). > Could not find grid point with maximum density 0.000734882 on grid. Using old > location (11.25,4.75,0). > INFO (NSTracker): New star location not set (11.25,4.75,0) because too far > from old (0,12.625,0). > > This is an easy fix, I expect, and I'd really appreciate a hint. > > Maria > _______________________ > Maria C. Babiuc Hamilton, Ph.D. > Professor, Department of Physics > College of Science, Marshall University, > 1 John Marshall Drive, Huntington, WV, 25755 > Room S 257, Phone: (304)696-2754 > -- 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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