On Sat, Mar 23, 2019 at 2:51 PM Maahi Talukder wrote:
> Thank you for your reply.
>
> In my PETSC directory, there is only one "arch..." directory called
> arch-linux2-c-debug. And with that one, I can only run my code in debugging
> mode. But I want to run them in non-debugging mode, so I was wo
On Sat, Mar 23, 2019 at 2:13 PM Maahi Talukder via petsc-users <
petsc-users@mcs.anl.gov> wrote:
> I think I didn't build with PETSC-ARCH=arch-opt.
> So just to make sure, now I just run the command - ./configure PETSC_ARCH
> = arch-opt - and it will create the missing directory and I can switch
Before further looking into it, can you try these:
* It seems you used petsc 3.9.4. Could you update to petsc master branch? We
have an optimization (after 3.9.4) that is very useful for VecScatter on DMDA
vectors.
* To measure performance, you do not want that many printfs.
* Only measure the p
