[Scipy-tickets] [SciPy] #1464: spsolve generates a memory error on windows when solving large linear system

SciPy Trac scipy-tickets@scipy....
Fri Jun 24 03:10:24 CDT 2011


#1464: spsolve generates a memory error on windows when solving large linear
system
---------------------------------+------------------------------------------
 Reporter:  richpsharp           |       Owner:  wnbell     
     Type:  defect               |      Status:  new        
 Priority:  normal               |   Milestone:  Unscheduled
Component:  scipy.sparse.linalg  |     Version:  0.9.0      
 Keywords:  spsolve              |  
---------------------------------+------------------------------------------
 I'm solving a sparse banded system of dimension 640k*640k.  After a few
 seconds, spsolve fails and reports this error message:

 ...Can't expand MemType 1: jcol 637811

 When watching my system monitor I can see I still have 2GB of ram left
 when I get this memory error.  This error only happens on several windows
 vista machines I've checked; it works without problems on two Linux
 machines I've checked.

 I've attached the two files I'm using that generate this error.  Run as:

 python water_quality.py

-- 
Ticket URL: <http://projects.scipy.org/scipy/ticket/1464>
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