[Users] Users Digest, Vol 135, Issue 16
Lorenzo Ennoggi
lorenzo.ennoggi at gmail.com
Mon Jun 14 05:38:07 CDT 2021
Ok, thank you so much Federico. I think I will try to enlarge the grid up
to a radius of 25 following the suggestion Frank just gave me and, in case
I still have problems, I will try enlarging it a bit more.
Thank you again,
Lorenzo
Il giorno lun 14 giu 2021 alle ore 12:12 Federico Cipolletta <
cipo87 at gmail.com> ha scritto:
> That could be one easy workaround, but it specifically depends on your
> needs (i.e. the region in which you need more accuracy, the resolution you
> are interested in and most of all the resources that are available to you).
>
> Best,
> Federico Cipolletta.
>
> Il lun 14 giu 2021, 12:06 Lorenzo Ennoggi <lorenzo.ennoggi at gmail.com> ha
> scritto:
>
>> Hi Federico,
>> great to hear from you! And thank you for your quick answer. So you are
>> suggesting to enlarge the finest refinement level a bit more, right?
>>
>> Thank you,
>> Lorenzo
>>
>> Il giorno lun 14 giu 2021 alle ore 11:56 Federico Cipolletta <
>> cipo87 at gmail.com> ha scritto:
>>
>>> Hello Lorenzo,
>>>
>>> I recall that I obtained something similar to what you are describing,
>>> when attempting a regrinding for very small radii of the finest refinement
>>> level (let's say a most refinement radius near 5.0).
>>>
>>> I wasn't able to control precisely this setting and I concluded that it
>>> could be related to the number of buffer/ghost zones that are required (of
>>> course it also depends on the most refined resolution, though).
>>>
>>> Adopting greater radii, instead, it seems that I could have better
>>> control.
>>>
>>> I am sorry of not being of any more help and I wonder if someone could
>>> add more.
>>>
>>> Best regards,
>>> Federico Cipolletta.
>>>
>>> Il lun 14 giu 2021, 11:45 <users-request at einsteintoolkit.org> ha
>>> scritto:
>>>
>>>> Send Users mailing list submissions to
>>>> users at einsteintoolkit.org
>>>>
>>>> To subscribe or unsubscribe via the World Wide Web, visit
>>>> http://lists.einsteintoolkit.org/mailman/listinfo/users
>>>> or, via email, send a message with subject or body 'help' to
>>>> users-request at einsteintoolkit.org
>>>>
>>>> You can reach the person managing the list at
>>>> users-owner at einsteintoolkit.org
>>>>
>>>> When replying, please edit your Subject line so it is more specific
>>>> than "Re: Contents of Users digest..."
>>>>
>>>>
>>>> Today's Topics:
>>>>
>>>> 1. Issue with thorn Trigger (Lorenzo Ennoggi)
>>>>
>>>>
>>>> ----------------------------------------------------------------------
>>>>
>>>> Message: 1
>>>> Date: Mon, 14 Jun 2021 11:45:37 +0200
>>>> From: Lorenzo Ennoggi <lorenzo.ennoggi at gmail.com>
>>>> Subject: [Users] Issue with thorn Trigger
>>>> To: users at einsteintoolkit.org
>>>> Message-ID:
>>>> <CAG9ZJAyU0akW7iOrViD5OSHENw5_soDVNS=
>>>> T1N+TgFtoV9u_aw at mail.gmail.com>
>>>> Content-Type: text/plain; charset="utf-8"
>>>>
>>>> Dear all,
>>>> I would like to restart a simulation from a checkpoint enlarging the
>>>> finest
>>>> refinement level in my grid. In particular, I would like to change
>>>> CarpetRegrid2::radius_1[5]
>>>> = 20.1 to CarpetRegrid2::radius_1[5] = 25. I tried to do that by making
>>>> the
>>>> parameter CarpetRegrid2::radius_1 always steerable and adding the
>>>> following lines to my parameter file:
>>>>
>>>>
>>>> ActiveThorns = "Trigger"
>>>> Trigger::Trigger_Number = 1
>>>>
>>>> Trigger::Trigger_Checked_Variable[0] = "hydrobase::rho"
>>>> Trigger::Trigger_Relation[0] = ">"
>>>> Trigger::Trigger_Checked_Value[0] = 1.e-4
>>>> Trigger::Trigger_Reduction[0] = "maximum"
>>>>
>>>> Trigger::Trigger_Reaction[0] = "steerparam"
>>>> Trigger::Trigger_Steered_Parameter_Thorn[0] = "CarpetRegrid2"
>>>> Trigger::Trigger_Steered_Parameter_Name[0] = "radius_1[5]"
>>>> Trigger::Trigger_Steered_Parameter_Value[0] = "25." #New value of the
>>>> above
>>>> parameter
>>>> Trigger::Trigger_Once[0] = 1 #It means "yes"
>>>> Trigger::Trigger_Debug = 1 #It means "yes"
>>>>
>>>>
>>>> In this way, the trigger should act immediately, as the maximum of rho
>>>> is
>>>> ~1e-3 in my case. Indeed, it looks like the trigger is working fine, as
>>>> the
>>>> standard output says
>>>>
>>>> [...]
>>>> INFO (Trigger): Testing triggers
>>>> INFO (Trigger): last_checked: -1
>>>> INFO (Trigger): reducing trigger 0 red_handle 2 varindex 428
>>>> INFO (Trigger): reducing was ok
>>>> INFO (Trigger): trigger nr. 0 fullfilled for rho (0.000804>0.000100)
>>>> INFO (Trigger): Steering parameter
>>>> INFO (Trigger): Parameter steered
>>>> [...]
>>>>
>>>> but unfortunately, looking at the 2D output with VisIt, the finest
>>>> refinement level does not get enlarged (i.e. radius_1[5] does not
>>>> appear to
>>>> have been steered at all). Do you have any suggestions on how to get
>>>> this
>>>> trigger to work? Or, are you aware of other ways of obtaining the same
>>>> result without using the thorn Trigger?
>>>>
>>>> I attach the parameter file in case you need it.
>>>>
>>>> Thank you very much in advance for your help.
>>>>
>>>> Sincerely,
>>>> Lorenzo Ennoggi
>>>> -------------- next part --------------
>>>> An HTML attachment was scrubbed...
>>>> URL:
>>>> http://lists.einsteintoolkit.org/pipermail/users/attachments/20210614/96210e68/attachment.html
>>>> -------------- next part --------------
>>>> A non-text attachment was scrubbed...
>>>> Name: BNS_IF_1.5_1.5_Ab2.2_lorenz_damp_fac_0.89_dx0125_MissingLink.par
>>>> Type: application/octet-stream
>>>> Size: 30523 bytes
>>>> Desc: not available
>>>> Url :
>>>> http://lists.einsteintoolkit.org/pipermail/users/attachments/20210614/96210e68/attachment.obj
>>>>
>>>> ------------------------------
>>>>
>>>> _______________________________________________
>>>> Users mailing list
>>>> Users at einsteintoolkit.org
>>>> http://lists.einsteintoolkit.org/mailman/listinfo/users
>>>>
>>>>
>>>> End of Users Digest, Vol 135, Issue 16
>>>> **************************************
>>>>
>>> _______________________________________________
>>> Users mailing list
>>> Users at einsteintoolkit.org
>>> http://lists.einsteintoolkit.org/mailman/listinfo/users
>>>
>>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.einsteintoolkit.org/pipermail/users/attachments/20210614/076fca83/attachment-0001.html
More information about the Users
mailing list