[Boost-users] [uBLAS] howto combine sparse AND symmetric?

Subject: [Boost-users] [uBLAS] howto combine sparse AND symmetric?
From: Tim Odenthal (Tim.Odenthal_at_[hidden])
Date: 2010-01-22 12:03:12

Hi!

I need to solve the classical linear equation
A*x=b 
with x the unknown vector and A a very large, sparse and symmetrical matrix. I 
want to try the conjugate gradient iterative method to solve the problem 
(unless somebody knows a definitely much better one). Now I've seen that uBLAS 
provides the symmetric_adaptor class - should I use this one in combination 
with one of the sparse matrix classes? Does this reduce the memory usage as 
compared to only using a sparse matrix?

Many thanks in advance 

Tim Odenthal