next up previous contents index
Next: Choosing a Faster BLACS Up: Performance of ScaLAPACK Previous: Performance Bottlenecks in the

Performance Improvement


Before experimenting with different data layouts, users should make sure that they are using the fastest BLACS and BLAS libraries.

Three major factors influence the performance of a ScaLAPACK routine: the flop rate achieved by the BLAS on each node, the computational load balance, and the communication costs.

Susan Blackford
Tue May 13 09:21:01 EDT 1997