Using Mixed Precision for Sparse Matrix Computations to Enhance the Performance while Achieving 64-bit Accuracy.

Alfredo Buttari Jack Dongarra Jakub Kurzak Piotr Luszczek Stanimire Tomov Using Mixed Precision for Sparse Matrix Computations to Enhance the Performance while Achieving 64-bit Accuracy. 2008 34 ACM Trans. Math. Softw. 4 http://doi.acm.org/10.1145/1377596.1377597 db/journals/toms/toms34.html#ButtariDKLT08