Just today I sped up a C++ program significantly by using the ublas sparse matrices.

If memory is an issue, and even sparse matrix implementations in Perl don't help, I think it's not too bold of me to recommend another library and programming language. (Maybe you can even out-source the matrix operations with Inline::CPP, but I've never tried that; the module looks a bit out-of-date...).

In reply to Re: Memory Efficient Sparse Matrix Handling by moritz
in thread Memory Efficient Sparse Matrix Handling by neversaint

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