L. Susan Blackford Andrew J. Cleary Antoine Petitet R. Clinton Whaley James Demmel Inderjit S. Dhillon H. Ren Ken Stanley Jack Dongarra Sven Hammarling Practical Experience in the Numerical Dangers of Heterogeneous Computing. 133-147 1997 23 ACM Trans. Math. Softw. 2 http://doi.acm.org/10.1145/264029.264030 db/journals/toms/toms23.html#BlackfordCPWDDRSDH97