@article {icl:424, title = {Using Mixed Precision for Sparse Matrix Computations to Enhance the Performance while Achieving 64-bit Accuracy}, journal = {ACM Transactions on Mathematical Software}, volume = {34}, number = {4}, year = {2008}, month = {2008-00}, pages = {17-22}, keywords = {plasma}, author = {Alfredo Buttari and Jack Dongarra and Jakub Kurzak and Piotr Luszczek and Stanimire Tomov} }