[petsc-users] DMDACreateSection

Barry Smith bsmith at mcs.anl.gov
Mon May 2 03:13:53 CDT 2016


> On May 2, 2016, at 1:55 AM, Åsmund Ervik <asmund.ervik at ntnu.no> wrote:
> 
> Hi all,
> 
> On 27. april 2016 10:21, Matthew Knepley <knepley at gmail.com> wrote:
>> 
>> I will also note that I think this is correct for the future as well since
>> the DMForest implementation (the
>> wrapper Toby Isaac wrote for p4est) uses PetscSection as well, is memory
>> efficient, and does structured
>> AMR. I am switching everything I had on DMDA to use this. If you want help
>> in this direction, of course
>> I am at your service. I am currently getting my magma dynamics code to work
>> in this way.
>> 
> 
> Pardon me for intruding, but this DMForest looks very interesting if it
> can get me structured AMR for "cheap". Questions:
> 
> Will DMForest provide a more-or-less drop in replacement for usual DMDA
> for a finite difference/volume code? Does it do this already, or is it
> planned to?
> 
> 
> By the way, I see web rendering for my simple'n'stupid DMDA example is
> broken with 3.7.0 (and it's not linked to from the DM examples page):
> http://www.mcs.anl.gov/petsc/petsc-current/src/dm/examples/tutorials/ex13f90.F90.html

   I suspect that it is the non-ASCII character in your name that that is causing the problem.
> 
> 
> Best regards,
> Åsmund
> 



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