关键词: 并行代码自动生成, 并行分解, 维内通信, 优化

Abstract:

The code generation belongs to the backend of parallelizing compiler.The efficiency of the generated code effects on the parallel programs’.The offset inside of dimension between two parallel decomposition can casuse the Inner Dimension Communications（ID-Com）.The code generated by traditional algorithm for ID-Com brings redundant communication for its inaccurate.An optimization algorithm for ID-Com improving on traditional is presented.The algorithm builds the communication lists by combining the array variable，then generates code by the lists.The results show the algorithm can improve on the efficiency of ID-Com.

Key words: automatic parallel code generation, parallel decomposition, Inner Dimension Communication（ID-Com）, optimization