[Users] error after activating IllinoisGRMHD and VolumeIntegrals_GRMHD

Zach Etienne zachetie at gmail.com
Tue Jul 17 08:53:20 CDT 2018


Dear Chia-Hui,

> Is there a thorn called VolumeIntegrals ?

No, there isn't, and this *might* be evidence that the parameter file you
chose is outdated (try to find one that depends on VolumeIntegrals_GRMHD):
the old "VolumeIntegrals" thorn was split into the VolumeIntegrals_GRMHD
and VolumeIntegrals_vacuum thorns. The former can use IllinoisGRMHD
gridfunctions and the latter can use McLachlan gridfunctions.
VolumeIntegrals_GRMHD
is used to find the center of masses of the neutron stars so their motion
can be tracked by the AMR grids.

> And I am curious about: what is the main difference between the parameter
file (nsnstohmns.par) in the gallery example and nsns_test.par ?

The nsns_test.par is designed to evolve the "Missing Link" case (
https://arxiv.org/abs/1101.4298), which is probably different than the
gallery example. To run this case, you'll need to use the LORENE initial
data file here (credit: Meudon group; you can find this case on the LORENE
website -- https://lorene.obspm.fr/ -- as well, but you'll need to hunt for
it):
http://math.wvu.edu/~zetienne/resu.d

-Zach

*     *     *
Zachariah Etienne
Assistant Professor of Mathematics
West Virginia University
*https://math.wvu.edu/~zetienne/ <https://math.wvu.edu/~zetienne/>*
https://blackholesathome.net

On Tue, Jul 17, 2018 at 9:26 AM, 林家暉 <r06222015 at ntu.edu.tw> wrote:

> Dear Zach,
>
> Sorry for late reply. I have tried one of the parameter file you mentioned
> ( nsns_test.par ). I have a question for this file that the thorn
> VolumeIntegrals should be activated but I can only find VolumeIntegrals_GRMHD
> and VolumeIntegrals_vacuum. After I tried both thorns, I chose
> VolumeIntegrals_GRMHD(that is, I change all VolumeIntegrals into VolumeIntegrals_GRMHD
> in the nsns_test.par).However the code stopped after several minutes
> running. So what I want to ask is: Is there a thorn called VolumeIntegrals ?
> Since I cannot find after searching and I think it is the reason
> terminating the code.
>
> And I am curious about: what is the main difference between the
> parameter file (nsnstohmns.par) in the gallery example and nsns_test.par ?
>
>
> Thank you.
>
> Best regards,
>
> Chia-Hui
> ------------------------------
> *寄件者:* Zach Etienne <zachetie at gmail.com>
> *寄件日期:* 2018年7月14日 上午 02:41:24
>
> *收件者:* 林家暉
> *副本:* Einstein Toolkit Users
> *主旨:* Re: [Users] error after activating IllinoisGRMHD and
> VolumeIntegrals_GRMHD
>
> Hi Chia-Hui,
>
> If you really want to use VolumeIntegrals_GRMHD, you are more than welcome
> to do so. However, the parameter file you are using from the examples
> gallery will need to be significantly modified to be compatible with
> IllinoisGRMHD. My immediate thought (which may be correct or incorrect) is
> that it is attempting to initialize both GRHydro and IllinoisGRMHD
> simultaneously.
>
> If you want to use IllinoisGRMHD, the easiest route would be to start with
> a parameter file in the following wvuthorns_diagnostics directory:
> https://bitbucket.org/zach_etienne/wvuthorns_diagnostics/
> src/master/Meudon_Bin_NS-modified/par/
>
> I haven't had time yet to fully set up a gallery example for this BNS
> case, so beware: you may need to modify the parameter file a bit to make it
> work properly. I'm hoping to schedule the next IllinoisGRMHD Working Group
> telecon in the next few weeks, so please stay tuned if you are interested.
>
> -Zach
>
> *     *     *
> Zachariah Etienne
> Assistant Professor of Mathematics
> West Virginia University
> http://math.wvu.edu/~zetienne/
> http://blackholesathome.net
>
> On Fri, Jul 13, 2018 at 11:50 AM, 林家暉 <r06222015 at ntu.edu.tw> wrote:
>
>> Dear Zach,
>> Becasue if I only activate VolumeIntegrals_GRMHD but not IllinoisGRMHD ,
>> there will be following error in the .out file:
>>
>> Error: Implementation 'ILLINOISGRMHD' not activated.
>>        This implementation is required by activated thorn(s):
>>            VolumeIntegrals_GRMHD (implementing VolumeIntegrals_GRMHD)
>>        This implementation is provided by compiled thorn(s):
>>            IllinoisGRMHD
>>        Add a thorn providing this implementation to the ActiveThorns
>> parameter.
>> Activation failed - 1 errors in activation sequence
>>
>> It seems it is required to activate IllinoisGRMHD  in order to use
>> VolumeIntegrals_GRMHD.
>>
>> Thanks,
>> Chia-Hui
>> ------------------------------
>> *寄件者:* Zach Etienne <zachetie at gmail.com>
>> *寄件日期:* 2018年7月13日 下午 09:04:30
>> *收件者:* 林家暉
>> *副本:* Einstein Toolkit Users
>> *主旨:* Re: [Users] error after activating IllinoisGRMHD and
>> VolumeIntegrals_GRMHD
>>
>> Hi Chia-Hui,
>>
>> Is there a reason you are using IllinoisGRMHD for this particular
>> example? The example was written for GRHydro.
>>
>> -Zach
>>
>> *     *     *
>> Zachariah Etienne
>> Assistant Professor of Mathematics
>> West Virginia University
>> http://math.wvu.edu/~zetienne/
>> http://blackholesathome.net
>>
>> On Thu, Jul 12, 2018 at 11:35 PM, 林家暉 <r06222015 at ntu.edu.tw> wrote:
>>
>>> Dear whom it may concern,
>>> I tried to solve the tracking problem of unequal mass binary neutron (
>>> http://einsteintoolkit.org/gallery/bns/index.html ) star by using the
>>> thorn WVUThorns_Diagnostics / VolumeIntegrals_GRMHD . Therefore I
>>> activate both IllinoisGRMHD and VolumeIntegrals_GRMHD. However I met
>>> the error which showed in both .err file and .out file.
>>>
>>> In .err file:
>>> Thu Jul 12 08:03:04 2018: [unset]:_pmi_alps_init:alps_get_placement_info
>>> returned with error -1
>>> Thu Jul 12 08:03:04 2018: [unset]:_pmi_init:_pmi_alps_init returned -1
>>>
>>> In .out file:
>>> INFO (IllinoisGRMHD): Font fix failed!
>>> INFO (IllinoisGRMHD): i,j,k = 78 31 41, stats.failure_checker = 10000
>>> x,y,z = -1.800000e+01 -7.593750e+00 1.068750e+01 , index=574610 st_i = -nan
>>> -nan -nan, rhostar = 2.902693e+243, Bi = 0.000000e+00 0.000000e+00
>>> 0.000000e+00, gij = 1.295702e+00 0.000000e+00 0.000000e+00 1.295702e+00
>>> 0.000000e+00 1.295702e+00, Psi6 = 1.474883e+00
>>> INFO (IllinoisGRMHD): Couldn't find root from: -nan 2.902693e+243 -nan
>>> -nan -nan, rhob approx=1.968084e+243, rho_b_atm=1.000000e+200,
>>> Bx=0.000000e+00, By=0.000000e+00, Bz=0.000000e+00, gij_phys=1.295702e+00
>>> 0.000000e+00 0.000000e+00 1.295702e+00 0.000000e+00 1.295702e+00,
>>> alpha=8.746533e-01
>>>
>>> I am not sure what these error exactly mean and how to solve it.
>>>
>>> Thanks.
>>> Chia-Hui
>>>
>>>
>>> _______________________________________________
>>> Users mailing list
>>> Users at einsteintoolkit.org
>>> http://lists.einsteintoolkit.org/mailman/listinfo/users
>>>
>>>
>>
>
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