Task Level Parallelization of All Pair Shortest Path Algorithm in OpenMP 3.0
Eid Albalwi, Parimala Thulasiraman, Ruppa Thulasiram
Available Online July 2013.
- https://doi.org/10.2991/cse.2013.26How to use a DOI?
- OpenMP 3.0; All Pair Shortest Path; Task Paral-lelization
- OpenMP is a standard parallel programming lan-guage to develop parallel applications on shared memory ma-chines. OpenMP is very suitable for designing parallel algorithms for regular applications where the amount of work is known apriori and therefore, distribution of work among the threads can be done at compile time. In irregular applications, the load changes dynamically at runtime and distribution of work among the threads can be done only at runtime. In the literature, it has been shown that OpenMP produces poor performance for irreg-ular applications. In 2008, the OpenMP 3.0 version introduced new features such as ”tasks” to handle irregular computations. Not much work has gone into studying irregular algorithms in OpenMP 3.0. In this paper, we consider one graph problem, the all pair shortest path problem and its implementation in OpenMP 3.0. We show that for large number of vertices, the algorithm running on OpenMP 3.0 surpasses the one on OpenMP 2.5 by 1.6 times.
- Open Access
- This is an open access article distributed under the CC BY-NC license.
Cite this article
TY - CONF AU - Eid Albalwi AU - Parimala Thulasiraman AU - Ruppa Thulasiram PY - 2013/07 DA - 2013/07 TI - Task Level Parallelization of All Pair Shortest Path Algorithm in OpenMP 3.0 BT - 2nd International Conference on Advances in Computer Science and Engineering (CSE 2013) PB - Atlantis Press SP - 111 EP - 114 SN - 1951-6851 UR - https://doi.org/10.2991/cse.2013.26 DO - https://doi.org/10.2991/cse.2013.26 ID - Albalwi2013/07 ER -