Sparse 3D Matrix repository


First I ask for excuses if my English is not very good.

I’m a student of University of Malaga and I’m starting with CUDA in my Project end of career. I need a repository of 3D Sparse Matrix. I found a lot of repositories of 2D Sparse Matrix but nothing in 3D.

If someone knows some place where I can get this matrices y would be very grateful.

Thank you very much in advance.