Open GoogleCodeExporter opened 9 years ago
Actually an enhancement-request.
Original comment by alea...@gmail.com
on 28 Oct 2008 at 2:21
In http://www.mail-archive.com/cython-dev@codespeak.net/msg02827.html
there is a discussion on how to write a wrapper for GMP in Cython
which performs as well as gmpy.
In the attachment there is an implementation in Cython which is faster
than gmpy in the bench example in the above link, and which performs
as well as gmpy in running mpmath's runtests.py
What improves performance is caching, which is implemented using code
from Sage; the only difference is that in fast_tp_dealloc() the memory
is not freed; this improves performance (maybe the same could be done
in Sage), and it is analogous to the caching in gmpy.
The advantage in using Cython wrapped GMP is that other Cython
libraries can be developed independently that cimport it; this is true
in particular for mpmath.
Original comment by mario.pe...@gmail.com
on 4 May 2009 at 11:22
Attachments:
Great job, I like this a lot. This would be useful for sympy too, for our Cython
core. Thanks very much!
Original comment by ondrej.c...@gmail.com
on 4 May 2009 at 11:27
Thank you, this is very much appreciated. I'll make time in the next couple
days to
take a close look.
Original comment by casevh
on 5 May 2009 at 6:56
Very interesting!
Original comment by fredrik....@gmail.com
on 5 May 2009 at 7:22
Sorry for the delay in response.
It is faster than even the existing trunk version of gmpy. I've been working on
trying to make the existing gmpy compatible with Python 3 and I'm debating
which will
be easier: hacking the existing version or writing a new version in Cython.
I've posted a message to gmpy-dev to discuss the future of gmpy. Can we
continue the
discussion there?
Original comment by casevh
on 3 Jun 2009 at 7:18
Original issue reported on code.google.com by
ondrej.c...@gmail.com
on 24 Oct 2008 at 6:27