[Scipy-tickets] [SciPy] #1458: lu_factor gives different results, depending on whether the input is C or Fortran contiguous (also affects lu_solve)

SciPy Trac scipy-tickets@scipy....
Thu Jun 9 12:23:13 CDT 2011


#1458: lu_factor gives different results, depending on whether the input is C or
Fortran contiguous (also affects lu_solve)
--------------------------+-------------------------------------------------
 Reporter:  mike.wimmer   |       Owner:  somebody
     Type:  defect        |      Status:  new     
 Priority:  normal        |   Milestone:          
Component:  scipy.linalg  |     Version:  0.9.0   
 Keywords:                |  
--------------------------+-------------------------------------------------

Comment(by mike.wimmer):

 > The ticket indicates version 0.9.0 of scipy--is that the version that
 you are actually using?

 Yes, it is 0.9.0, downloaded from sourceforge.

 I think it might have to do with the configuration if the porblem occurs -
 specifically if there is a clapack. My configuration is

 {{{
 >>> import scipy
 >>> scipy.version.version
 '0.9.0'
 >>> scipy.show_config()
 umfpack_info:
   NOT AVAILABLE
 atlas_threads_info:
   NOT AVAILABLE
 blas_opt_info:
     libraries = ['f77blas', 'cblas', 'atlas']
     library_dirs = ['/clusterdata/wimmer/python/lib']
     define_macros = [('ATLAS_INFO', '"\\"3.8.3\\""')]
     language = c
 atlas_blas_threads_info:
   NOT AVAILABLE
 lapack_opt_info:
     libraries = ['lapack', 'f77blas', 'cblas', 'atlas']
     library_dirs = ['/clusterdata/wimmer/python/lib']
     define_macros = [('ATLAS_INFO', '"\\"3.8.3\\""')]
     language = f77
 atlas_info:
     libraries = ['lapack', 'f77blas', 'cblas', 'atlas']
     library_dirs = ['/clusterdata/wimmer/python/lib']
     language = f77
 lapack_mkl_info:
   NOT AVAILABLE
 blas_mkl_info:
   NOT AVAILABLE
 atlas_blas_info:
     libraries = ['f77blas', 'cblas', 'atlas']
     library_dirs = ['/clusterdata/wimmer/python/lib']
     language = c
 mkl_info:
   NOT AVAILABLE

 }}}

-- 
Ticket URL: <http://projects.scipy.org/scipy/ticket/1458#comment:4>
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