Thanks, I will investigate more on these things and get back to you early in the week. But for now numpy seems to be functioning pretty normally (log(2) gives the correct answer). thanks again. It would be great to figure this stuff out before 1.0, but we might not have time.
Brian On 10/20/06, Tim Hochberg <[EMAIL PROTECTED]> wrote: > Brian Granger wrote: > > When I set seterr(all='warn') I see the following: > > > > In [1]: import numpy > > /usr/common/homes/g/granger/usr/local/lib/python/numpy/lib/ufunclike.py:46: > > RuntimeWarning: invalid value encountered in log > > _log2 = umath.log(2) > > /usr/common/homes/g/granger/usr/local/lib/python/numpy/lib/scimath.py:19: > > RuntimeWarning: invalid value encountered in log > > _ln2 = nx.log(2.0) > > > [etc, etc] > > Wow! That looks pretty bad. What do you get if you try just > "numpy.log(2)" or "numpy.log(2.0)"? Is it producing sane results for > scalars at all? I suppose another possibility is that the error > reporting is broken on AIX for some reason. > > Hmmm. > > I'm betting that is is. The macro UFUNC_CHECK_STATUS is very platform > dependent. There is a version from AIX (ufuncobject.h line 301), but > perhaps it's broken on your particular configuration and as a result is > spitting out all kinds of bogus errors. This is only coming to light now > because the default error checking level got cranked up. > > I gotta call it a night and I'll be out tomorrow, so I won't be much > more help, but here's something that you might look into: have you > compiled numarray sucessfully? If you haven't you might want to try it. > It uses the same default error checking that numpy is now using. If you > have, you might want to look for the equivalent of UFUNC_CHECK_STATUS > (it might even have the same name) and splice it into numpy and see if > it fixes your problems. > > Of course, if numpy.log(2) is spitting out something bogus, there's > something much worse going on, but I suspect you would have noticed that > by now. > > Good luck, > > -tim > > > ------------------------------------------------------------------------- > Using Tomcat but need to do more? Need to support web services, security? > Get stuff done quickly with pre-integrated technology to make your job easier > Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo > http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 > _______________________________________________ > Numpy-discussion mailing list > Numpy-discussion@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/numpy-discussion > ------------------------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ Numpy-discussion mailing list Numpy-discussion@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/numpy-discussion
