Abstract
A static scheduling scheme in OpenMP is presented in this paper to solve the loop load imbalance for load decreasing loop. Loop load balance is the key issue to improve the speedup of parallel program. Different from the traditional default static scheduling based on OpenMP specification, which the loop iterations are divided into chunks that are approximately equal in size, and the chunks are assigned to the threads in a round-robin fashion in the order of the thread number, the iterations allocation is modified based on the loop load. Especially, for load decreasing loop, the new static scheduling scheme hopes to calculate the load of each assigned chunks to keep the balance of work in the loop. The heuristic area calculation method could be used to calculate the load of each chunk. As a result, the load balance is improved by the new static scheduling scheme to ensure the parallel efficiency of OpenMP programs.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
