In this paper, we propose a new statement reordering algorithm for DOACROSS loops that overcomes some of the problems in the previous schemes. The new algorithm uses a hierarchical approach to locate strongly dependent statement groups and to order these groups considering critical dependences. A new optimization problem, dependence covering maximization, which was not discussed before is also introduced. It is shown that this optimization problem is NP-complete, and a heuristic algorithm is incorporated in our algorithm. This new statement re-ordering scheme, combined with the dependence covering maximization, can be an important compiler optimization to parallelize loop structures for large scale coarse and fine grain parallelism.
|Original language||English (US)|
|Journal||Proceedings of the International Conference on Parallel Processing|
|State||Published - 1994|
|Event||23rd International Conference on Parallel Processing, ICPP 1994 - Raleigh, NC, United States|
Duration: Aug 15 1994 → Aug 19 1994