[FLASH-USERS] 2D SN Core-Collapse Leakage scheme problem

[kiyarash Taghiniyarami]

Dear Haakon Andresen,

Thanks for your reply. for the second error do you have any parfile or time
and resolution available to suggest?
I changed the resolution to:
# Grid / Refinement
nblockx = 15
nblocky = 30
nblockz = 1

gr_lrefineMaxRedDoByLogR   = .true.
gr_lrefineMaxRedDoByTime   = .FALSE.
gr_lrefineMaxRedLogBase    = 10.0
gr_lrefineMaxRedRadiusFact = 0.15
gr_lrefineMaxRedTRef   = 2.0
gr_lrefineMaxRedTimeScale  = 0.5
lrefine_max   = 11
nrefs   = 2
lrefine_min   = 1
refine_var_1   =     "dens"
refine_var_2               = "pres"
refine_var_3               = "entr"
refine_var_4               = "none"
refine_cutoff_1   = 0.8
refine_cutoff_2   = 0.8
refine_cutoff_3            = 0.8
refine_cutoff_4            = 0.8

but this time instead of 231 ms it gave me the same error at later time
(260 ms). changing the  *tstep_change_factor * , and *dtinit* did not
resolve the issue.

Kind regards,
Kiya

On Sun, May 15, 2022 at 1:42 PM Haakon Andresen <haakon.andresen at astro.su.se>
wrote:

> Dear Kiyarash Taghiniyarami,
>
>
> The first error (for LS180) seem to indicate a lack of storage space on
> your drive.
>
> You see this written by the error handler in your first screenshot. Make
> sure that there is space
>
> and that you are not trying to create files larger than the maximum
> filesize allowed by your system.
>
>
> The second errors seems to be related to physics. During bounce things
> change very fast and it
>
> might be that you need to reduce your timestep during this time. However,
> I am not sure about this
>
> because I do not know exactly how flash regulates the timestep. The error
> is in the EOS module where the
>
> routine fails to converge, I have seen this happen around bounce and for
> me it always helped to restrict dt or
>
> the resolution. However, I was working with an other code at the time.
>
>
> Best,
> Haakon Andresen
> ------------------------------
> *From:* flash-users <flash-users-bounces at flash.rochester.edu> on behalf
> of kiyarash Taghiniyarami <kiyarash.niyarami at gmail.com>
> *Sent:* 15 May 2022 10:03:41
> *To:* flash-users at flash.rochester.edu
> *Subject:* [FLASH-USERS] 2D SN Core-Collapse Leakage scheme problem
>
> Dear all FLASH users,
> I tried to run 2D supernova core collapse for two different nuclear EOS of
> Lattimer and Sewsty (https://ttt.astro.su.se/~eoco/eos.html)  with K=180
> and K=220 but I got the errors which I attached the images of them.
> for the case of k=220 it runs into problem after 231 ms (it seems before
> the bounce) and for k=180 just after 24 ms
> Could anyone tell me what I have done wrong?
> (changing the resolution also did not resolve the issue)
>
> P.S. Trying to compile the FLASH, I also changed the Flash.h file and
> replace the line  as Dr. O'Connor  proposed:
> #FLASH_HAVE_HDF5_MOD
> with
> #define IO_USE_HDF5_MOD 1
>
> I also attached the sample flash.par file
>
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