On Sat, Apr 23, 2011 at 3:47 PM, Charles R Harris <charlesr.har...@gmail.com > wrote:
> > > On Sat, Apr 23, 2011 at 3:38 PM, Christoph Gohlke <cgoh...@uci.edu> wrote: > >> >> >> On 4/23/2011 10:41 AM, Charles R Harris wrote: >> > >> > >> > On Sat, Apr 23, 2011 at 11:09 AM, Bruce Southey <bsout...@gmail.com >> > <mailto:bsout...@gmail.com>> wrote: >> > >> > On Sat, Apr 23, 2011 at 9:58 AM, Till Stensitzki <mail.t...@gmx.de >> > <mailto:mail.t...@gmx.de>> wrote: >> > > >> > > > Do you also have an earlier version of numpy installed? As David >> > says, this >> > > >should raise an error for recent numpy and >> > > >I'm wondering if you are inadvertently >> > > >running an earlier version.Chuck >> > > >> > > >> > > I only have one python installation and >> > > numpy.__version__ shows 1.6b. >> > > I could reinstall numpy, if it would help. >> > > >> > > _______________________________________________ >> > > NumPy-Discussion mailing list >> > > NumPy-Discussion@scipy.org <mailto:NumPy-Discussion@scipy.org> >> > > http://mail.scipy.org/mailman/listinfo/numpy-discussion >> > > >> > >> > Hi, >> > I can get this with 64-bit Win 7, 32-bit Python 2.6, 2.7 (below) and >> > 3.1 and numpy 1.6b (fresh install) IDLE and the command line. I can >> > also confirm the 'ValueError' with Python2.6 and numpy 1.51 on the >> > same system. >> > >> > Actually this is 'weird' when printing and crashed with the range - >> > accessing unassigned memory? >> > A smaller array gives an numpy error or memory error in idle. >> > >> > Bruce >> > >> > >> > > >> import numpy as np >> > > >> x=np.zeros((262144, 262144)) >> > > >> x >> > array([], shape=(262144, 262144), dtype=float64) >> > > >> x[0,0] >> > 2.1453735050108555e-314 >> > > >> x[1:10,1:10] >> > >> > > >> ================================ RESTART >> > ================================ >> > > >> import numpy as np >> > >> > > >> x=np.zeros((26214, 26214)) >> > >> > Traceback (most recent call last): >> > File "<pyshell#7>", line 1, in <module> >> > x=np.zeros((26214, 26214)) >> > ValueError: array is too big. >> > > >> >> > > >> x=np.zeros((262144, 26214)) >> > >> > Traceback (most recent call last): >> > File "<pyshell#8>", line 1, in <module> >> > x=np.zeros((262144, 26214)) >> > MemoryError >> > _____ >> > >> > >> > This was fixed before, maybe it got broken again. Since this looks >> > windows specific, I'm guessing it has something to do with the size of >> > long being 32 bits. >> > >> > The previous problem was integer overflow when multiplying the >> > dimensions together to get the array size when repeated divisions of the >> > maximum size should have be used instead. >> > >> > Chuck >> >> Could be related to this change: >> >> < >> https://github.com/numpy/numpy/commit/fcc6cc73ddcb1fc85446ba9256ac24ecdda6c6d8#L1L1121 >> > >> >> > My, that does look suspicious ;) Could you revert that loop and test it > out? > > There was also a function for doing that check, I don't recall which, and > it should probably be checked to make sure it remains as was. > > There was also a test that should have caught this. Evidently it wasn't quite up to snuff. Chuck
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