#2621: keep running into nan ,need help
Reporter: Artectek
Status: new
Milestone: ET_2022_05
Version: ET_2022_05
Type: bug
Priority: minor
Component: EinsteinToolkit thorn
Comment (by Artectek):
@{557058:59e031ba-9bb5-4298-a472-7b99d0ae6f22} ,thanks a lot,but i see there are some suggestions regarding this problem? may I know what are them?
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Ticket URL: https://bitbucket.org/einsteintoolkit/tickets/issues/2621/keep-running-into…
#2622: Cactus: Improve run-time error message when aliased function is registered twice
Reporter: Erik Schnetter
Status: new
Milestone:
Version:
Type: enhancement
Priority: minor
Component: Cactus
Comment (by Roland Haas):
Please apply \(but see additional suggestions in review\).
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Ticket URL: https://bitbucket.org/einsteintoolkit/tickets/issues/2622/cactus-improve-ru…
#2621: keep running into nan ,need help
Reporter: Artectek
Status: new
Milestone: ET_2022_05
Version: ET_2022_05
Type: bug
Priority: minor
Component: EinsteinToolkit thorn
Comment (by Artectek):
I also tried using FMR instead of AMR,it just keep running into nan:
```none
INFO (NSTracker): Found star at (-5.90625,7.03125,0)
95572 1343.981 | 59.3475136 | 0.0000945 0.0020815 | 0.0008303 | 1.6975849 | 0.0068918 | 2402
INFO (NSTracker): Found star at (-5.90625,7.03125,0)
95576 1344.038 | 59.3481466 | 0.0000945 0.0020816 | 0.0008302 | 1.6958857 | 0.0068909 | 2390
INFO (NSTracker): Found star at (-5.90625,7.03125,0)
95580 1344.094 | 59.3485846 | 0.0000945 0.0020817 | 0.0008302 | 1.6936211 | 0.0068890 | 2395
INFO (NSTracker): Found star at (-5.90625,7.03125,0)
95584 1344.150 | 59.3489886 | 0.0000945 0.0020818 | 0.0008302 | 1.6895956 | 0.0068864 | 2390
INFO (NSTracker): Found star at (-5.90625,7.03125,0)
95588 1344.206 | 59.3487586 | 0.0000945 0.0020819 | 0.0008302 | 1.6834992 | 0.0068836 | 2395
INFO (NSTracker): Found star at (-5.90625,7.03125,0)
95592 1344.263 | 59.3493541 | 0.0000945 0.0020819 | 0.0008302 | 1.6749728 | 0.0068800 | 2390
INFO (NSTracker): Found star at (-5.90625,7.03125,0)
95596 1344.319 | 59.3496240 | 0.0000945 0.0020820 | 0.0008302 | 1.6658542 | 0.0068756 | 2395
INFO (NSTracker): Found star at (-5.90625,7.03125,0)
-----------------------------------------------------------------------------------------------------------------------
Iteration Time | *me_per_hour | GRHYDRO::dens | *ROBASE::rho | *::w_lorentz | *STRAINTS::H | *axrss_mb
| | sum maximum | maximum | maximum | maximum | maximum
-----------------------------------------------------------------------------------------------------------------------
95600 1344.375 | 59.3502048 | 0.0000945 0.0020820 | 0.0008302 | 1.6612792 | 0.0068712 | 2390
INFO (NSTracker): Found star at (-5.90625,7.03125,0)
95604 1344.431 | 59.3502108 | 0.0000945 0.0020820 | 0.0008301 | 1.6612805 | 0.0068671 | 2402
INFO (NSTracker): Found star at (-5.90625,6.75,0)
95608 1344.488 | 59.3509198 | 0.0000945 0.0020820 | 0.0008301 | 1.6559333 | 0.0068783 | 2390
INFO (NSTracker): Found star at (-25.6585,-0.0634766,25.6993)
95612 1344.544 | 59.3509957 | -nan 1.552986e-11 | 1.000000e-11 | 1.0000000 | 0.0008295 | 2395
```
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Ticket URL: https://bitbucket.org/einsteintoolkit/tickets/issues/2621/keep-running-into…
#2621: keep running into nan ,need help
Reporter: Artectek
Status: new
Milestone: ET_2022_05
Version: ET_2022_05
Type: bug
Priority: minor
Component: EinsteinToolkit thorn
Changes (by Artectek):
I try to run a double neutron star sim,using a cold eos table,but i keep running into nan for months,the par file and the output and err file are in the attachments.please give me some hints on where could be going wrong,I really have no clue.
there are other sim i used,but the result are the same,usually it started normal,everything looks fine,the center density the stable,the rotation looks ok,but later on,just when the matter from two stars started to interact with each other,something always happen,either
nan on the start of the interaction,or nan in the process of [merge. At](http://merge.at) first i thought maybe it became a blackhole,but the i checked the center density,it did not show signs of continue increase,often it just running normally and nan just happened.
i can provide the eos table,or anything you need,please,i just need some hint,i tried everything i know,i am drying out here
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Ticket URL: https://bitbucket.org/einsteintoolkit/tickets/issues/2621/keep-running-into…