Exploiting the Performance of 32-bit Floating-Point Arithmetic in Obtaining 64-bit Accuracy (Computing on Games)
Computer Science and Mathematics Division, ORNL by Jack Dongarra (January 25th 2007)

Advanced Numerical Techniques for Cluster Computing
SC06, Tampa, Florida by Piotr Luszczek (November 15th 2006)

Improving the Accuracy of Computed Eigenvalues Using 32 and 64 Bit Floating Point Arithmetric
ICL Friday Lunch talk by Jack Dongarra (June 9th 2006)

Exploiting the Performance of 32 bit Floating Point Arithmetic in Obtaining 64 bit Accuracy
ICL Friday Lunch talk by Julie Langou (May 19th 2006)