Non-contiguous processor allocation strategy for 2D mesh connected multicomputers based on sub-meshes available for allocation

S. Bani-Mohammad*, M. Ould-Khaoua, I. Ababneh, Lewis M. Mackenzie

*المؤلف المقابل لهذا العمل

نتاج البحث: Conference contribution

22 اقتباسات (Scopus)

ملخص

Contiguous allocation of parallel jobs usually suffers from the degrading effects of fragmentation as it requires that the allocated processors be contiguous and has the same topology as the network topology connecting these processors. In non-contiguous allocation, a job can execute on multiple disjoint smaller sub-meshes rather than always waiting until a single sub-mesh of the requested size is available. Lifting the contiguity condition in non-contiguous allocation is expected to reduce processor fragmentation and increase processor utilization. However, the communication overhead is increased because the distances traversed by messages can be longer. The extra communication overhead depends on how the allocation request is partitioned and allocated to free sub-meshes. In this paper, a new non-contiguous processor allocation strategy, referred to as Greedy-Available-Busy-List, is suggested for the 2D mesh network, and is compared using simulation against the well-known non-contiguous and contiguous allocation strategies. To show the performance improved by proposed strategy, we conducted simulation runs under the assumption of wormhole routing and all-to-all communication pattern. The results show that the proposed strategy can reduce the communication overhead and improve performance substantially in terms of turnaround times of jobs and finish times.

اللغة الأصليةEnglish
عنوان منشور المضيفProceedings - 12th International Conference on Parallel and Distributed Systems, ICPADS 2006
الصفحات41-48
عدد الصفحات8
المعرِّفات الرقمية للأشياء
حالة النشرPublished - 2006
منشور خارجيًانعم
الحدث12th International Conference on Parallel and Distributed Systems, ICPADS 2006 - Minneapolis, MN, United States
المدة: يوليو ١٢ ٢٠٠٦يوليو ١٥ ٢٠٠٦

سلسلة المنشورات

الاسمProceedings of the International Conference on Parallel and Distributed Systems - ICPADS
مستوى الصوت2
رقم المعيار الدولي للدوريات (المطبوع)1521-9097

Other

Other12th International Conference on Parallel and Distributed Systems, ICPADS 2006
الدولة/الإقليمUnited States
المدينةMinneapolis, MN
المدة٧/١٢/٠٦٧/١٥/٠٦

ASJC Scopus subject areas

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بصمة

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