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Improve efficiency of backslash operator for sparse matrices

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Xiaohan Du
Xiaohan Du 2016-11-28
编辑： Xiaohan Du 2016-11-28
Hi all,
I have a problem which needs to perform x = A\b for hundreds of times, where A is a sparse matrix of roughly 1500*1500. The sparsity of A is very good. These operations takes lots of time, is there a way to improve the performance of the backslash operator in x = A\b? or to make these operations efficient? In fact, figure shows what spy(A) looks like.
Many thanks!

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James Tursa
James Tursa 2016-11-28
You might find something in Tim Davis FEX submissions that would help:
http://www.mathworks.com/matlabcentral/fileexchange/?term=authorid%3A908

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