I can confirm that this particular test *sometimes* fails for me also. I also don't know what the cause is.
Here is my /proc/cpuinfo. processor : 0 vendor_id : AuthenticAMD cpu family : 6 model : 8 model name : AMD Athlon(tm) XP 2200+ stepping : 1 cpu MHz : 1799.380 cache size : 256 KB fdiv_bug : no hlt_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 1 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 mmx fxsr sse syscall mmxext 3dnowext 3dnow ts bogomips : 3603.04 Michel On Jun 18, 6:38 pm, Jonathan Bober <[EMAIL PROTECTED]> wrote: > I just compiled and tested sage on a machine that I haven't run it on > before, and got the following puzzling error: > > sage -t devel/sage-main/sage/rings/real_mpfr.pyx > ********************************************************************** > File "real_mpfr.pyx", line 1471: > sage: RealField(5)(-pi).exact_rational() > Expected: > -25/8 > Got: > 1610612736 > ********************************************************************** > > It works fine now, by which I mean, the test passes if I manually run > > ./sage -t devel/sage-main/sage/rings/real_mpfr.pyx > > and the following also works correctly: > > sage: RealField(5)(-pi) > -3.1 > sage: RealField(5)(-pi).exact_rational() > -25/8 > > Perhaps the error indicates a hardware failure (this is an old, battered > laptop) but I thought I would report it anyway. For reference, > from /proc/cpuinfo: > > processor : 0 > vendor_id : AuthenticAMD > cpu family : 6 > model : 6 > model name : mobile AMD Athlon(tm) 4 1600+ > stepping : 2 > cpu MHz : 498.364 > cache size : 256 KB > fdiv_bug : no > hlt_bug : no > f00f_bug : no > coma_bug : no > fpu : yes > fpu_exception : yes > cpuid level : 1 > wp : yes > flags : fpu vme de pse tsc msr pae mce cx8 sep mtrr pge mca > cmov pat pse36 mmx fxsr sse syscall mmxext 3dnowext 3dnow > bogomips : 997.70 > > I'm running 'make test' again, and might try to do some hardware tests. > I'll send another email if anything funny comes up. --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to sage-devel@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sage-devel URLs: http://sage.scipy.org/sage/ and http://modular.math.washington.edu/sage/ -~----------~----~----~----~------~----~------~--~---
