[Insight-users] How to solve linear equations in ITK at a faster rate????

[Habib Baluwala]

Hi everyone , 
                  I needed help in solving the a set of large number of
linear equations in ITK. I am currently using the following list of programs 

vnl_vector<double>x(2*TotVox,0);
vnl_sparse_lu linear_solver(A, vnl_sparse_lu::estimate_condition);
linear_solver.solve(b,&x);

where S is a sparse matrix and b is a vector with all the values and x is
the solution that we get at the end of the equation . for a 256*256*2 no of
linear equations it takes around 20 minutes which is very large as Matlab
solves it in 30 seconds. I look forward to your reply and any help is
appreciated.   
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