Thanks Bruno and Martin for the swift reply. For starters i will try with
-march=native .
Cheers,
Denis.
On Thursday, September 15, 2016 at 2:04:58 PM UTC+2, Denis Davydov wrote:
>
> Dear all,
>
> From the matrix-free tutorials 37 and 48, I see that the recommended flags
> for VectorizedArrays
Dear Bruno,
On Thursday, September 15, 2016 at 5:37:28 PM UTC+5:30, Bruno Turcksin
wrote::
>
> 1. What is wrong with the embedded method? Does the problem lie in my
>> understanding?
>>
> It's hard to say what is wrong from here. Is coarsen_param greater than
> one? Have you reached
Dear Bruno,
On Thu, Sep 15, 2016 at 11:15 PM, Bruno Turcksin
wrote:
>
> I would need to see your code to understand why this happens. That
> part of the library is pretty simple, we just check that the error is
> less than coarsen_tol and if it is, delta_t_guess is
Hi Denis,
> From the matrix-free tutorials 37 and 48, I see that the recommended
> flags for VectorizedArrays with GCC are
>
> -DCMAKE_CXX_FLAGS="-march=native"
>
> How about using -O3, -ffast-math, -funroll-loops ? Any other
> recommended flags for GCC?
-march=native gives you AVX vectorization
Vaibhav
On Thursday, September 15, 2016 at 5:52:41 AM UTC-4, Vaibhav Palkar wrote:
> 1. What is wrong with the embedded method? Does the problem lie in my
> understanding?
>
It's hard to say what is wrong from here. Is coarsen_param greater than
one? Have you reached max_delta? Finally, just
Hello Wolfgang,
Ok, good. The commit is fine. I'll see if I can pinpoint the exact cause of
segmentation faults.
One more question, in fact a small inconsistency that is of my interest:
the function VectorTools::interpolate_boundary_values is not templated for
the generic Number type but for
Dear all,
>From the matrix-free tutorials 37 and 48, I see that the recommended flags
for VectorizedArrays with GCC are
-DCMAKE_CXX_FLAGS="-march=native"
How about using -O3, -ffast-math, -funroll-loops ? Any other recommended
flags for GCC?
Regards,
Denis.
--
The deal.II project is
Hello All,
I'm solving a multiple component non-linear reaction-diffusion problem with
dealii and for time stepping I'm using the embedded explicit methods
available within the dealii framework.
If I understand the documentation correctly, the embedded method should
coarsen the time step if