guppy.hpy() finds 149 objects dict of sympy.core.assumptions.ManagedProperties on the heap
Not sure where sympy is called here. While doing max() ? On Friday, February 16, 2018 at 7:55:33 AM UTC, Marco Caliari wrote: > > Maybe it was clear, but the offending part is > > g = coef02[M] > for i in [M-1..2,step=-1]: > g = x*g+coef02[i] > > Something like > > P = PolynomialRing(RRR,"x") > g = P(coef02[2:]) > > works without any problem. > > > > > On Friday, 9 February 2018 14:44:23 UTC+1, Nils Bruin wrote: >> >> On Friday, February 9, 2018 at 11:03:11 AM UTC, Marco Caliari wrote: >>> >>> Hi, the following script >>> >>> def test(m,c,precision): >>> M = 3*m >>> RRR = RealField(prec = precision) >>> coef02 = [RRR(1/i) for i in [1..M+1]] >>> g = coef02[M] >>> for i in [M-1..2,step=-1]: >>> g = x*g+coef02[i] >>> ME = 32 >>> disk = [exp (2*pi.n(precision)*I*i/ME) for i in range(ME)] >>> epsilon1 = max([abs(g(x=z)) for z in disk]) >>> return >>> m = 40 >>> for c in [1/2..10,step=1/2]: >>> for ell in [1..10]: >>> test(m,c,165) >>> >>> Indeed, comparing the objects on the heap that weren't there before the >> loop I find: >> >> [(<type 'builtin_function_or_method'>, 1), >> (<type 'sage.rings.rational.Rational'>, 1), >> (<type 'instancemethod'>, 1), >> (<type 'set'>, 1), >> (<type 'dict'>, 1), >> (<type 'tuple'>, 3), >> (<type 'list'>, 3), >> (<type 'frame'>, 3), >> (<type 'weakref'>, 28), >> (<type 'sage.rings.real_mpfi.RealIntervalFieldElement'>, 6200), >> (<type 'sage.rings.real_mpfr.RealNumber'>, 29999), >> (<type 'sage.rings.complex_number.ComplexNumber'>, 1457000)] >> >> The real numbers mostly seem to be approximations to pi. Using >> objgraph.show_backrefs I'm not getting anything useful. We're definitely >> leaking but I wasn't able to identify a cache that's keeping references. Is >> that any change that we're doing something wrong with an INCREF/DECREF ? >> > -- 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 post to this group, send email to sage-devel@googlegroups.com. Visit this group at https://groups.google.com/group/sage-devel. For more options, visit https://groups.google.com/d/optout.
