[Scipy-tickets] [SciPy] #1220: Arpack failures on 64-bit OS X 10.6

SciPy Trac scipy-tickets@scipy....
Sat Jul 3 01:43:03 CDT 2010


#1220: Arpack failures on 64-bit OS X 10.6
---------------------------------+------------------------------------------
 Reporter:  rgommers             |       Owner:  wnbell     
     Type:  defect               |      Status:  new        
 Priority:  normal               |   Milestone:  Unscheduled
Component:  scipy.sparse.linalg  |     Version:  devel      
 Keywords:  arpack, 64-bit, OSX  |  
---------------------------------+------------------------------------------
 Arpack test failures have been reported by several people, all on 64 bit
 OS X 10.6 only. On 32-bit it's fine, and 64-bit OS X 10.5 is also OK.
 {{{
 ======================================================================
 ERROR: test_nonsymmetric_modes (test_arpack.TestEigenNonSymmetric)
 ----------------------------------------------------------------------
 Traceback (most recent call last):
  File
 "/sw/lib/python2.6/site-
 packages/scipy/sparse/linalg/eigen/arpack/tests/test_arpack.py",
 line 204, in test_nonsymmetric_modes
    self.eval_evec(m,typ,k,which)
  File
 "/sw/lib/python2.6/site-
 packages/scipy/sparse/linalg/eigen/arpack/tests/test_arpack.py",
 line 186, in eval_evec
    eval,evec=eigen(a,k,which=which,**kwds)
  File "/sw/lib/python2.6/site-
 packages/scipy/sparse/linalg/eigen/arpack/arpack.py", line 397,
 in eigen
    params.iterate()
  File "/sw/lib/python2.6/site-
 packages/scipy/sparse/linalg/eigen/arpack/arpack.py", line 222,
 in iterate
    raise RuntimeError("Error info=%d in arpack" % self.info)
 RuntimeError: Error info=-8 in arpack
 }}}

 This is related to #725, and was discussed in this thread:
 http://thread.gmane.org/gmane.comp.python.scientific.devel/13878/focus=13882

 In 0.8.0 these are marked as knownfail.

-- 
Ticket URL: <http://projects.scipy.org/scipy/ticket/1220>
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