Irregular array redistribution has been paid attention recently since it can distribute different size of data segment to processors according to their own computation ability. It's also the reason why it has been kept an eye on load balance. In this work, we present a two-phase degree-reduction (TPDR) method for scheduling HPF2 irregular data redistribution. An extended algorithm based on TPDR is also presented. Effectiveness of the proposed methods not only avoids node contention but also shortens the overall communication length. To evaluate the performance of our methods, we have implemented both algorithms along with the divide-and-conquer algorithm. The simulation results show improvement of communication costs. ? Springer-Verlag Berlin Heidelberg 2005.
Relation:
Lecture Notes in Computer Science 3606 , pp. 216-225
