On Mon, Oct 12, 2020 at 1:00 AM Zachary Scherr <zsc...@gmail.com> wrote: > > That also crashes with: 86622 segmentation fault ./sage --python > > I tested this both with building sage against homebrew python 3.8.6 and > against sage's default python 3.8.5 and the same error occurred in both > cases. I don't have this problem using my system-wide numpy so it's possible > that because sage numpy is built from source that maybe one of my homebrew > libraries is causing issues. I found > https://github.com/numpy/numpy/issues/11551 which could be relevant and might > indicate that it's not a sage problem.
If you are talking about Homebrew's numpy, it should be more or less identical with Sage's numpy (assuming you use Homebrew's openblas in Sage) cf. https://github.com/Homebrew/homebrew-core/blob/master/Formula/numpy.rb > > I should also add that if I lower the dimension of x to 100000 then it works > without problem. > > On Sunday, October 11, 2020 at 3:26:11 PM UTC-4 dim...@gmail.com wrote: >> >> On Sun, Oct 11, 2020 at 8:14 PM Zachary Scherr <zsc...@gmail.com> wrote: >> > >> > Hi All, >> > >> > I was doing some bug hunting and noticed that scipy's pytests crashed >> > pretty early. I tracked down exactly what was causing the problem and >> > noticed it can be reproduced by the following sequence of commands: >> > >> > sage: import numpy as np >> > sage: x = np.random.randn(1000000,2) >> > sage: y = np.random.randn(2,2) >> > sage: x.dot(y) >> >> please test this in "plain" Sage python, i.e. does >> >> ./sage --python >> >> >>> import numpy as np >> >>> x = np.random.randn(1000000,2) >> >>> y = np.random.randn(2,2) >> >>> x.dot(y) >> >> reproduce the crash? >> >> >> >> > >> > produces: >> > >> > ------------------------------------------------------------------------ >> > 0 signals.cpython-38-darwin.so 0x00000001088bc62a print_backtrace + 58 >> > 1 signals.cpython-38-darwin.so 0x00000001088c0277 sigdie + 39 >> > 2 signals.cpython-38-darwin.so 0x00000001088c0212 sigdie_for_sig + 290 >> > 3 libsystem_platform.dylib 0x00007fff6c88e5fd _sigtramp + 29 >> > ------------------------------------------------------------------------ >> > Unhandled SIGBUS: A bus error occurred. >> > This probably occurred because a *compiled* module has a bug >> > in it and is not properly wrapped with sig_on(), sig_off(). >> > Python will now terminate. >> > ------------------------------------------------------------------------ >> > /Users/zscherr/sage/src/bin/sage-python: line 2: 78812 Bus error: 10 sage >> > -python "$@" >> > >> > I haven't tested on any other platforms, but for what it's worth I have >> > Catalina 10.15.7 with Xcode 12. >> > >> > Thanks, >> > Zach >> > >> > -- >> > You received this message because you are subscribed to the Google Groups >> > "sage-devel" group. >> > To unsubscribe from this group and stop receiving emails from it, send an >> > email to sage-devel+...@googlegroups.com. >> > To view this discussion on the web visit >> > https://groups.google.com/d/msgid/sage-devel/28f58136-d3c7-40b7-9a46-36fc347acc2en%40googlegroups.com. > > -- > You received this message because you are subscribed to the Google Groups > "sage-devel" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to sage-devel+unsubscr...@googlegroups.com. > To view this discussion on the web visit > https://groups.google.com/d/msgid/sage-devel/a67ca4b5-526b-40d7-a476-520d49890207n%40googlegroups.com. -- You received this message because you are subscribed to the Google Groups "sage-devel" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-devel+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/sage-devel/CAAWYfq0pYACMJSnoA968aoe86EGUY2V-TZspCtAcKWwp6semmQ%40mail.gmail.com.
