DASSL is now in the official package list! You can install it via
Pkg.add("DASSL").
W dniu wtorek, 6 maja 2014 16:25:34 UTC+2 użytkownik Tomas Lycken napisał:
>
> Re licensing:
>
> I don't think it can be considered an implementation from scratch if
> you've looked at the code, unfortunaltely.
>
> However, the origin of the file seems to be a group at Polytecnico da Bari
> [1] and they have graciously released the code into public domain [2], so
> we're all good anyway =)
>
> [1]: http://www.dm.uniba.it/~testset/solvers/dassl.php and also
> http://www.dm.uniba.it/~testset/testsetivpsolvers/
> [2]: http://www.dm.uniba.it/~testset/report/dassl.pdf
>
> // Tomas
>
> On Tuesday, May 6, 2014 12:07:01 PM UTC+2, Viral Shah wrote:
>>
>> Sure. Usually what we do is have people submit a few PRs and once they
>> have the hang of it, we give push access.
>>
>> -viral
>> On 06-May-2014 3:08 pm, "Paweł Biernat" <[email protected]> wrote:
>>
>>> Could I get the push access to the METADATA repo?
>>>
>>> W dniu wtorek, 6 maja 2014 10:59:46 UTC+2 użytkownik Viral Shah napisał:
>>>>
>>>> Good idea - ODE.jl is certainly the place for this.
>>>>
>>>>
>>>> On Tue, May 6, 2014 at 1:51 PM, Ivar Nesje <[email protected]> wrote:
>>>>
>>>>> I think a DAE solver would be a great fit for ODE.jl. Currently I
>>>>> think it will be best to develop it outside, until a few important
>>>>> cleanups
>>>>> is performed on the ODE solvers. The state of ODE.jl is between a
>>>>> breaking
>>>>> API discussion and implementation of that described API. It would be very
>>>>> nice if you could read some of the
>>>>> discussion<https://github.com/JuliaLang/ODE.jl/search?q=api&ref=cmdform&type=Issues>
>>>>> and
>>>>> documentation<https://github.com/JuliaLang/ODE.jl/blob/master/doc/api.md>
>>>>> and
>>>>> comment from your point of view. Some consensus has been reached, but
>>>>> there
>>>>> are still possible to argue for different solutions.
>>>>>
>>>>> Ivar
>>>>>
>>>>> kl. 10:02:40 UTC+2 tirsdag 6. mai 2014 skrev Alex følgende:
>>>>>
>>>>>> Or submit a PR for including it in ODE.jl :-)
>>>>>>
>>>>>> Best,
>>>>>>
>>>>>> Alex.
>>>>>>
>>>>>>
>>>>>> On Tuesday, 6 May 2014 09:57:34 UTC+2, Viral Shah wrote:
>>>>>>>
>>>>>>> It's great to see a DASSL implementation in Julia! Do register it
>>>>>>> with METADATA.
>>>>>>>
>>>>>>> -viral
>>>>>>>
>>>>>>> On Tuesday, May 6, 2014 12:41:20 PM UTC+5:30, Paweł Biernat wrote:
>>>>>>>>
>>>>>>>> For the last several weeks I have been implementing [1] a DASSL
>>>>>>>> algorithm in Julia. The DASSL algorithm was developed by Linda
>>>>>>>> Petzold in late 80s to solve Differential Algebraic Equations (DAE)
>>>>>>>> and its Fortran 77 implementation is one of the most popular DAE
>>>>>>>> solvers. My implementation in Julia bases mainly on a book [3] and
>>>>>>>> partly on the source of the original implementation [2] (mostly in
>>>>>>>> places where the book was ambiguous). I tried to mimic the behavior
>>>>>>>> of the original implementation as much as I could but my code is not
>>>>>>>> in a one to one correspondence with the original (I aimed at
>>>>>>>> readability of the algorithm), so don't be surprised if you get
>>>>>>>> slightly different results from both versions.
>>>>>>>>
>>>>>>>> This is my first larger project in Julia so don't expect high end
>>>>>>>> quality or performance, but I tested my implementation for
>>>>>>>> convergence
>>>>>>>> on various simple index-0 and index-1 problems and it works just
>>>>>>>> fine. That said, I am open to any critique and suggestions, and any
>>>>>>>> help with improving the code. Ultimately, I would like to see this
>>>>>>>> code merged into the ODE.jl library, if the maintainers of the
>>>>>>>> latter
>>>>>>>> allow it.
>>>>>>>>
>>>>>>>> [1] https://github.com/pwl/dassl.jl
>>>>>>>> [2] http://www.netlib.org/ode/ddassl.f
>>>>>>>> [3] "Numerical Solution of Initial'Value Problems in
>>>>>>>> Differential-Algebraic Equations" K. E. Brenan, S. L. Campbell, L. R.
>>>>>>>> Petzold
>>>>>>>>
>>>>>>>>
>>>>
>>>>
>>>> --
>>>> -viral
>>>>
>>>
