On Tue, Mar 9, 2010 at 7:13 PM, David Reichert <[email protected]> wrote: > Hi, > > Just another update: > > signal.convolve and signal.fftconvolve indeed do not seem to have the > problem, > however, they are slower by at least a factor of 2 for my situation. > > Moreover, I also tried out the numpy 1.4.x branch and the latest scipy svn, > and a short test seemed to indicate that the memory leak still was present > (albeit, interestingly, memory usage grew much slower), but then something > else stopped working in my main program, so I converted back to scipy 7.1 > and numpy 1.3.0 for now. > > I might have confused things somewhere along the line, though, I'm > not an expert with these things. Maybe other people can confirm the problem > one way or another.
I ran your convolve2d example for a few minutes without any increase in memory with numpy 1.4.0 and scipy svn that is about 2 months old Josef > > Thanks, > > David > > On Tue, Mar 9, 2010 at 9:32 PM, <[email protected]> wrote: >> >> On Tue, Mar 9, 2010 at 4:24 PM, David Reichert >> <[email protected]> wrote: >> > Hm, upgrading scipy from 0.7.0 to 0.7.1 didn't do the trick for me >> > (still >> > running numpy 1.3.0). >> > I'm not sure if I feel confident enough to use developer versions, but >> > I'll >> > look into it. >> >> If you don't need the extra options, you could also use in the >> meantime the nd version signal.convolve >> or the fft version signal.fftconvolve >> >> Josef >> >> > >> > Cheers >> > >> > David >> > >> > On Tue, Mar 9, 2010 at 7:57 PM, Robert Kern <[email protected]> >> > wrote: >> >> >> >> On Tue, Mar 9, 2010 at 13:49, David Reichert >> >> <[email protected]> >> >> wrote: >> >> > Hi, >> >> > >> >> > I just reported a memory leak with matrices, and I might have found >> >> > another (unrelated) one in the convolve2d function: >> >> > >> >> > import scipy.signal >> >> > from numpy import ones >> >> > >> >> > while True: >> >> > scipy.signal.convolve2d(ones((1,1)), ones((1,1))) >> >> >> >> This does not leak for me using SVN versions of numpy and scipy. I >> >> recommend upgrading. >> >> >> >> -- >> >> Robert Kern >> >> >> >> "I have come to believe that the whole world is an enigma, a harmless >> >> enigma that is made terrible by our own mad attempt to interpret it as >> >> though it had an underlying truth." >> >> -- Umberto Eco >> >> _______________________________________________ >> >> NumPy-Discussion mailing list >> >> [email protected] >> >> http://mail.scipy.org/mailman/listinfo/numpy-discussion >> > >> > >> > The University of Edinburgh is a charitable body, registered in >> > Scotland, with registration number SC005336. >> > >> > _______________________________________________ >> > NumPy-Discussion mailing list >> > [email protected] >> > http://mail.scipy.org/mailman/listinfo/numpy-discussion >> > >> > >> _______________________________________________ >> NumPy-Discussion mailing list >> [email protected] >> http://mail.scipy.org/mailman/listinfo/numpy-discussion >> > > > The University of Edinburgh is a charitable body, registered in > Scotland, with registration number SC005336. > > _______________________________________________ > NumPy-Discussion mailing list > [email protected] > http://mail.scipy.org/mailman/listinfo/numpy-discussion > > _______________________________________________ NumPy-Discussion mailing list [email protected] http://mail.scipy.org/mailman/listinfo/numpy-discussion
