Hi Aarjavee
For the proposal format, please see http://ascend4.org/GSOC2015.
Some comments below:
On 25/03/15 19:50, Aarjavee S. Kamdar wrote:
Respected John Pye Sir,
I am Aarjavee Kamdar, a third year Computer Engineering student from
Government Engineering College, Rajkot. Firstly, I would like to thank
you and your team for maintaining such good open source software for
the public use. I just read the ideas page of ASCEND and I am keenly
interested in contributing to your software.
I am familiar with the languages: c, c++, python and am willing to
learn other languages required in the following projects that
interested me a lot:
1) Improvements to conditional Modelling syntax
- willing to learn Flex / Bison
This work would start with scanner/parser work, but it would go deeper
than that, into the data structures that support our CONDITIONAL, WHEN,
EVENT syntax, and into how we pass back debugging messages to the user.
I will require an elegant approach. I think that the hard part is
probably not the scanner/parser part. You might like to compare/contrast
ASCEND syntax with that of Modelica. We can do a lot better here on
usability!
2)Dynamic Modelling Improvements
Our state of the art here is the 'ksenija2' branch in our repository. I
am very keep to improve our support for hybrid discrete/continuous
modelling. Ksenija and I recently identified what looks like some bugs
in the handling of ksenija2/models/johnpye/solardynamics_simple.a4c
model. We would like to improve the debugging tools associated with the
new boundary-handling IDA solver, because debugging these event-driven
models is difficult; we need to give more support to the modeller to
help them fix their bugs.
3)GUI Improvements
- ready to learn to read Tcl/Tk code
The main GUI development is in Python these days. A grab-bag of ideas
right now:
* better debugging of EVENTs in the ksenija2 branch (mentioned also above)
* better handling of solver interruption
* possible live-plotting of observed variables during integration progress
* improved line-routing in the canvas GUI, giving better visual feedback
from canvas model solving (eg green box means that part of the model is
solved)
* various fixed for the 'tree view' of the main GUI window, eg
hiding/showing variables/relations/WHENs, etc, improved usability for
entering values
* some solution for allowing celsius temperatures to be entered/reported
in the GUI. Currently we can only do absolute temperatures. We need a
nice elegant solution. without too much hacking.
4)Parallel optimization solver for ASCEND
We need someone with strong parallel programming experience for this
one. We would like to assess options for solvers like particle swarm
optimisation, genetic algorithnms, etc. This is quite a different class
of solver to what we have currently. I think it would be very
interesting to see how productively ASCEND can be used for that type of
problem, and whether we can build a sensible framework that's useful for
the modeller. This kind of problem become especially interesting when
there are non-continuous functions being optimised, eg models with WHEN
statements, or models with many local minima.
Please kindly guide me how to approach these projects. Also, Please do
let me know what format of proposal would you expect.
Thanking you,
Regards,
Aarjavee S. Kamdar
Hope this is helpful (also to others who might be working on submitting
ideas).
As I always say to people interested in our project, *please* don't just
repeat what I'm describing above. Break it down and show that you can go
to the next step, eg what exactly would be implemented, where is the
code that does this stuff and what needs to be changed, The more you
can show you have done already, and the more you can show that you
*really* understand what you would be doing, the better your proposal.
And of course, *use* the program. Don't write a proposal if you haven't
at least built and run ASCEND, and played around with some models.
Look forward to receiving your proposal!
Cheers
JP
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