[Scipy-tickets] [SciPy] #1717: QZ segfault on Windows for 0.11.0rc1

SciPy Trac scipy-tickets@scipy....
Tue Aug 7 17:48:42 CDT 2012


#1717: QZ segfault on Windows for 0.11.0rc1
--------------------------+-------------------------------------------------
 Reporter:  rgommers      |       Owner:  somebody
     Type:  defect        |      Status:  new     
 Priority:  highest       |   Milestone:  0.11.0  
Component:  scipy.linalg  |     Version:  devel   
 Keywords:                |  
--------------------------+-------------------------------------------------

Comment(by rgommers):

 Easier than running the tests, here's a snippet that fails (from ML):
 {{{
 import numpy as np
 from scipy.linalg import qz

 A =   np.array([[3.9,  12.5, -34.5,  -0.5],
                  [ 4.3,  21.5, -47.5,   7.5],
                  [ 4.3,  21.5, -43.5,   3.5],
                  [ 4.4,  26.0, -46.0,   6.0 ]])

 B = np.array([[ 1.0,   2.0,  -3.0,   1.0],
                [1.0,   3.0,  -5.0,   4.0],
                [1.0,   3.0,  -4.0,   3.0],
                [1.0,   3.0,  -4.0,   4.0]])


 #sort = lambda ar,ai,beta : ai == 0  ## crashes
 sort = None                         ## runs

 print(qz(A,B,sort=sort))
 }}}

-- 
Ticket URL: <http://projects.scipy.org/scipy/ticket/1717#comment:6>
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