A Framework to Exploit Data Sparsity in Tile Low-Rank Cholesky Factorization - Cao, Qinglei; Alomairy, Rabab; Pei, Yu; Bosilca, George; Ltaief, Hatem; Keyes, David; Dongarra, Jack (2022 IEEE International Parallel and Distributed Processing Symposium (IPDPS), Parallel and Distributed Processing Symposium (IPDPS), 2022 IEEE International, IPDPS, 2022)