[SciPy-dev] ARPACK wrapper

Neilen Marais nmarais at sun.ac.za
Mon Nov 20 10:29:15 CST 2006


Hi

On Mon, 20 Nov 2006 08:07:03 -0700, Aric Hagberg wrote:

> On Mon, Nov 20, 2006 at 03:57:37PM +0100, Nils Wagner wrote:
>> 
>> Please can you run the following
>> I get something like
>> 
>>  _naupd: Number of update iterations taken
>>  -----------------------------------------
>>     1 -    1:    61
> 
> [snip]
> 
>> Traceback (most recent call last):
>>   File "eigs1.py", line 11, in ?
>>     w1,v1 = arpack.speigs.eigvals(matvec,a.shape[0],nev=nev,ncv=ncv)
>>   File
>> "/usr/lib64/python2.4/site-packages/scipy/sandbox/arpack/speigs.py",
>> line 71, in eigvals
>>     if info != 0: raise "Hell" # Indicates some error during the
>> Arnouldi iterations
>> Hell
> 
> Yes, I get the same.  We'll wait for Neilen to reply here since
> he wrote that bit.

I'm actually busy playing with this right now. Part of the problem is that
there are a number of tunables. I'm also fixing the exception to be more
descriptive than the raise hell pun I forgot in there ;P  I'll be
committing to CVS soon.

Regards
Neilen

> 
> Aric

-- 
you know its kind of tragic 
we live in the new world
but we've lost the magic
-- Battery 9 (www.battery9.co.za)



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