Hi
I am using feast extremel eigenvalue solver (dexample_extremal_ev_c1.c). for finding lowest eigenvalues. My matrix size is big 1 million cross 1 million. There are around 31 non zero values in each row. I can find lower 300 eigenvalues easily, but when I try to find 310 lower eigenvalues(meaning 10 more), my code got just crashed down and shows an error.
mkl_sparse_d_ev output info 2
Routine mkl_sparse_d_ev returns code of ERROR: 2Time taken: 19.06s
Please help me regarding this.