[FLASH-USERS] Question about 1D MHD simulation

[Mark Richardson]

Yes, I agree, the value for jmin / jmax are not changed from 1 for NDIM =1,
so the loop over jmin-2 : jmax+2 would cause issues.

I wonder if a simple fix would be to set a variable, say jbuff, to 2 in the
case of NDIM >= 2, and 0 for NDIM=1, where the loops go over jmin-jbuff,
jmax+jbuff. Likely something similar needs to be done for k loops for the
case with NDIM < 3.

-Mark


On 2 June 2017 at 18:56, Siyi Yu <siyiyu at lbl.gov> wrote:

> Hi! Thank  you very much for your answer. Here is the response of the code:
> :[image: Inline image 1]
> I think in this case no way can I run 1D simulation in such example, isn't
> it?
> Best
> Siyi
>
> On Fri, Jun 2, 2017 at 1:07 AM, Mark Richardson <
> mark.richardson.work at gmail.com> wrote:
>
>> Hello Siyi,
>>>
>>>   Are you running in serial, or parallel? If some processors do not have
>>> any blocks (common in small 1D problems), I used to get a similar crash. If
>>> it is serial, you can recompile with the -debug flag during setup, and then
>>> you should get information about what is causing the crash.
>>>
>>> Cheers,
>>>   -Mark
>>>
>>>
>>> On 2 June 2017 at 06:31, Siyi Yu <siyiyu at lbl.gov> wrote:
>>>
>>>> Dear all,
>>>> I tried to lance a 1d simulation MHD simulation. But after one
>>>> simulation step the terminal gave me this information:.
>>>> [image: Inline image 1]
>>>>
>>>> My set up line is here:
>>>> /setup -auto magnetoHD/NohCylindrical/ -1d +cylindrical -nxb=300 +usm
>>>> -objdir=Test2
>>>> I have taken directly the NohCylindrical example. It seems to me well a
>>>> 1D problem. Had anyone met the same problem? Why the 1D simulation doesn't
>>>> work here?
>>>>
>>>> Best
>>>> Siyi
>>>>
>>>
>>>
>>>
>>> --
>>>
>>> Mark Richardson
>>> Beecroft Postdoctoral Fellow, Department of Physics
>>> Denys Wilkinson Building - 555F
>>> University of Oxford
>>> Mark.Richardson at physics.ox.ac.uk
>>> My Website <https://sites.google.com/site/marklarichardson/>
>>> +44 1865 283020 <+44%201865%20283020>
>>>
>>
>>
>>
>> --
>>
>> Mark Richardson
>> Beecroft Postdoctoral Fellow, Department of Physics
>> Denys Wilkinson Building - 555F
>> University of Oxford
>> Mark.Richardson at physics.ox.ac.uk
>> +44 1865 280793 <+44%201865%20280793>
>>
>
>


-- 

Mark Richardson
Beecroft Postdoctoral Fellow, Department of Physics
Denys Wilkinson Building - 555F
University of Oxford
Mark.Richardson at physics.ox.ac.uk
+44 1865 280793
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