I need to calculate the determinant of a large complex sparse matrix.
I start by LU factorization and then perform the sum of all logarithmic entries in order to avoid overflow.
To do the LU factorization I tried cusparseZcsrilu0, cusparseZcsrilu02 and others but all failed
in the manual, it says that using this methods the matrix becomes:
However, the results makes non-sense.
The is any better method in cusolver or cupsarse libraries to compute the determimant of a sparse matrix?
Or what is the best method to do the LU factorization?
Also, in some methods we have to create and pass a descriptor for U and L, there is any way to access to this matrices?