pypy has some power in this direction http://www.strakt.com/~jacob/Pypy_for_the_rest_of_us.pdf http://morepypy.blogspot.com/
On Fri, Oct 24, 2008 at 12:38 PM, Tim Lahey <[EMAIL PROTECTED]> wrote: > On Oct 24, 2008, at 5:28 AM, peter wrote: > >> >> OK, sorry, I explain a little bit more in detail: >> - I work on thermal building simulation. We use for example one >> environment (TRNSYS) where you can connect models (for example >> building model to heating system model etc.). The models are mainly >> written in Fortran or C++ and compiled in DLL's that are then called >> by the equation solver. >> Our goal is to write the models not in C+++ or fortran anymore, but >> either in Matlab (and or Simulink), Scilab or Sage. >> So in clear, I want to profit of one of these mathematical >> environments, write models there and use them later in our simulation >> program. > > One thing you can do is prototype in Sage and python, make use of profiling > tools and then re-write the computation intensive portions using Cython or > Pysco. At the moment, there really aren't tools to generate C++ or Fortran > code from the Sage code. However, the latter tools are close to Python in > syntax and can work with Sage. > > That said, I'm fairly certain that it wouldn't be very difficult to write a > code generator for Sage. If one can get the underlying structure of each of > the expressions, it shouldn't be very difficult to convert that to C++ or > Fortran as long as the expressions can be represented in the language > without additional code. This is the approach that most the code generators > I've seen use. Maxima has GENTRAN if someone is interested in seeing how one > works and I know there is(are) paper(s) that discuss it. The main problem is > that someone doing this would need to be fairly familiar with Sage > internals. > > Cheers, > > Tim. > > --- > Tim Lahey > PhD Candidate, Systems Design Engineering > University of Waterloo -- Jurgis Pralgauskis tel: 8-616 77613; jabber: [EMAIL PROTECTED]; skype: dz0rdzas; Don't worry, be happy and make things better ;) --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sage-support URLs: http://www.sagemath.org -~----------~----~----~----~------~----~------~--~---
