[SciPy-user] scipy.test() hang up

Pearu Peterson pearu at scipy.org
Fri Apr 23 02:04:02 CDT 2004



On Fri, 23 Apr 2004, Nils Wagner wrote:

> Dear experts,
> 
> scipy.test() hang up in latest cvs 0.3.1_273.4274.
> 
> ...Result may be inaccurate, approximate err = 1.60346233901e-11
> .............................................Ties preclude use of exact
> statistic.
> ..Ties preclude use of exact statistic.
> ................
> 
> Any pointer for this behavior ?

I think it is cobyla test that hangs here. The reason is that gcc 
over-optimizes trstlp function in cobyla causing infinite loop, with no 
optimization this test passes ok.
Also, I thought I have fixed it in CVS (try rebuilding everything from 
scratch). Now it works ok with gcc 3.3.3 here. What g77 version are you 
using?

Pearu



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