I need to compute the n smallest magnitude eigen vectors of a very large sparse symmetric matrix in a C++ program. For my example, lets say n=30 and the matrix is 10k by 10k with about 70k non-zero...

I am using the normalized cuts package from http://www.cis.upenn.edu/~jshi/software/Ncut_9.zip (on Windows 7) This used to work fine with Matlab2010a. However I have upgraded to Matlab2013a (32 bi...

I was using scipy to do sparse matrix svd on some large data. The matix is around 200,000*8,000,000 size, with 1.19% non-zero entries. The machine I was using has 160G memory so i suppose memory sh...

Is it safe to use the ARPACK eigensolver from different threads at the same time from a program written in C? Or, if ARPACK itself is not thread-safe, is there an API-compatible thread-safe impleme...