@inproceedings {1404, title = {Least Squares Solvers for Distributed-Memory Machines with GPU Accelerators}, journal = {ACM International Conference on Supercomputing (ICS {\textquoteright}19)}, year = {2019}, month = {2019-06}, pages = {117{\textendash}126}, publisher = {ACM}, address = {Phoenix, Arizona}, isbn = {9781450360791}, doi = {https://dl.acm.org/doi/abs/10.1145/3330345.3330356}, author = {Jakub Kurzak and Mark Gates and Ali Charara and Asim YarKhan and Jack Dongarra} }