On Tue, Sep 20, 2011 at 9:44 PM, Robert Bradshaw <rober...@math.washington.edu> wrote: > 2011/9/19 Stéfan van der Walt <ste...@sun.ac.za>: >> Hi all, >> >> I only recently found out that the mailing list had shifted, so I hope >> my message reaches you this time! >> >> On the current development version of Cython, the attached script >> makes Cython go into an infinite loop, but let's hope that's just on >> my machine. >> >> Regards >> Stéfan >> >> ---------- Forwarded message ---------- >> Date: 2011/8/21 >> Subject: Speed of cython.compile >> To: cython-...@codespeak.net >> >> Hi all, >> >> I am trying to illustrate Cython's pure mode for a tutorial, and made >> up a quick fibonacci example (attached). But when I run the timings, >> I get: >> >> Cython: 5.515417099 >> Python: 0.123511791229 >> >> When I compile the module by hand (.pyx -> .c -> .so) the timings are >> perfect: >> >> Cython: 0.0394787788391 >> Python: 0.119538068771 >> >> Any idea what's going on? I cleared ~/.cython just to be sure, but >> that didn't help. > > Up until > https://github.com/cython/cython/commit/cc43e481654c802fb88620de45a3a14257911999 > , @cython.compile didn't correctly interpret pure directives. > Statements like > > @cython.compile > @cython.locals(n=int) > def fib(n): > ... > > are still on the todo list. Looks like I'm seeing the infinite loop > too; looking into it.
I think the "infinite loop" is re-parsing the code for each of your n=1000 iterations. - Robert _______________________________________________ cython-devel mailing list cython-devel@python.org http://mail.python.org/mailman/listinfo/cython-devel
