Hi, For a quick test, I was wondering if you were able to try the official packages:
Python 2.7.5 (http://www.python.org/ftp/python/2.7.5/python-2.7.5.msi), Numpy (http://sourceforge.net/projects/numpy/files/NumPy/1.7.1/numpy-1.7.1-win32-superpack-python2.7.exe/download), Scipy (http://sourceforge.net/projects/scipy/files/scipy/0.12.0/scipy-0.12.0-win32-superpack-python2.7.exe/download), wxPython (http://sourceforge.net/projects/wxpython/files/wxPython/2.8.12.1/wxPython2.8-win64-unicode-2.8.12.1-py27.exe/download?use_mirror=dfn). These are the links to the current 32-bit MS Windows packages (if you are currently reading this in the archives, you should find the more up-to-date packages). The reason is because there are currently no official 64-bit packages for Numpy, Scipy, and wxPython. Hmmmm, I'm wondering if that is because the 64-bit code is buggy and has precision issues! It will take longer to download than to install all four pre-compiled packages on a Windows system. I don't think you need to be an admin to do this. It would be good to see if this combination of official releases has the same terrible precision issue on your system. Cheers, Edward On 20 June 2013 10:19, Edward d'Auvergne <[email protected]> wrote: > Does this work with places=2 or 3 for the te value? That would be > better. The precision is shocking, I have to say. I would suggest > that in the comments, that something about this being the WinPython > distribution would also be useful for these precision records. I > would not think that it is the Microsoft C compiler that is a problem, > but rather the numpy packages bundled with this Python derivative. > The Microsoft compiler has never been an issue before, so I would > suggest that the WinPython people have a precision bug in their code. > Or maybe they have deliberately turned down their precision so that it > appears as if their distribution is much faster than standard > Python+numpy? Is it also WinPython that has problems with icons in > the menus? > > Regards, > > Edward > > > On 20 June 2013 09:18, Troels E. Linnet > <[email protected]> wrote: >> Follow-up Comment #5, bug #20821 (project relax): >> >> Reply to bug #20821: (https://gna.org/bugs/?20821) Optimisation failure / >> round error on windows 64 bit >> >> I experienced more precision problems. >> >> I had a terrible need, to turn down precision, quite a lot. >> >> So much, that I think something is wrong with the MS >> Visual Studio Express """ Professional """ 64 bit compilation. >> >> - self.assertAlmostEqual(spin.s2, s2, msg=mesg) >> + self.assertAlmostEqual(spin.s2, s2, places=6, msg=mesg) >> >> - self.assertAlmostEqual(spin.te / 1e-12, te, 5, msg=mesg) >> + self.assertAlmostEqual(spin.te / 1e-12, te, places=1, msg=mesg) >> >> - self.assertAlmostEqual(spin.rex * (2.0 * pi * >> cdp.spectrometer_frq[cdp.ri_ids[0]])**2, rex * (2.0 * pi * >> cdp.spectrometer_frq[cdp.ri_ids[0]])**2, msg=mesg) >> + self.assertAlmostEqual(spin.rex * (2.0 * pi * >> cdp.spectrometer_frq[cdp.ri_ids[0]])**2, rex * (2.0 * pi * >> cdp.spectrometer_frq[cdp.ri_ids[0]])**2, places=4, msg=mesg) >> >> # Optimisation values. >> s2 = 0.9699999999999995 >> te = 2048.000000000022283 >> rex = 0.14900000000000566 / (2.0 * pi * >> cdp.spectrometer_frq[cdp.ri_ids[0]])**2 >> >> My value >> # s2: 0.9700002183674102 : Diff -2.18367410709e-07 >> # te: 2048.015293187 Diff: -0.0152931869779 >> # rex: 0.14899473115727899 Diff: 5.26884272667e-06 >> >> # 64-bit Windows 7 (https://gna.org/bugs/?20821). >> # System: Windows >> # Release: 7 >> # Version: 6.1.7601 >> # Architecture: 64bit WindowsPE >> # Machine: AMD64 >> # Processor: Intel64 Family 6 Model 37 Stepping 2, GenuineIntel >> # Python version: 2.7.5 >> # numpy version: 1.7.1 >> # Compilation: Visual Studio Express 2012, Professional, for 64 bit >> compilation >> # s2: 0.9700002183674102 >> # te: 2048.015293187 >> # rex: 0.14899473115727899 >> # chi2: 2.3195994119090742e-10 >> # iter: 116 >> # f_count: 411 >> # g_count: 411 >> # h_count: 0 >> # warning: None >> >> (file #18123) >> _______________________________________________________ >> >> Additional Item Attachment: >> >> File name: patch3 Size:2 KB >> >> >> _______________________________________________________ >> >> Reply to this item at: >> >> <http://gna.org/bugs/?20821> >> >> _______________________________________________ >> Message sent via/by Gna! >> http://gna.org/ >> >> >> _______________________________________________ >> relax (http://www.nmr-relax.com) >> >> This is the relax-devel mailing list >> [email protected] >> >> To unsubscribe from this list, get a password >> reminder, or change your subscription options, >> visit the list information page at >> https://mail.gna.org/listinfo/relax-devel _______________________________________________ relax (http://www.nmr-relax.com) This is the relax-devel mailing list [email protected] To unsubscribe from this list, get a password reminder, or change your subscription options, visit the list information page at https://mail.gna.org/listinfo/relax-devel
