[SciPy-User] iterative matrix methods seem slow

[Pauli Virtanen]

Fri, 24 Jun 2011 10:49:35 +0000, Pauli Virtanen wrote:
[clip]
>>         print ' system too large trying iteration' result =
>>         scipy.sparse.linalg.gmres(matrix,b)[0]

Also, you can specify the required tolerance with the tol= parameter:
often getting the solution down to machine precision is not needed.