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공공누리This item is licensed Korea Open Government License

Title
Towards optimal scheduling policy for heterogeneous memory architecture in many-core system
Author(s)
박근철남덕윤김직수노승우
Publication Year
2018-07-25
Abstract
With the advent of Intels second-generation many-core processor (Knights Landing: KNL), high-bandwidth memory (HBM) with potentially five times more bandwidth than existing dynamic random-access memory has become available as a valuable computing resource for high-performance computing (HPC) applications. Therefore, resource management schemes should now be able to consider existing central processing unit cores, conventional main memory, and this newly available HBM to improve the overall system throughput and user response time. In this paper, we present our profiling mechanism and related scheduling policy that analyzes the resource usage patterns of various HPC workloads. By carefully allocating memory-intensive workloads to HBM in KNL, we show that the overall performance of multiple message passing interface workloads can be improved in terms of the execution time and system utilization. We evaluate and verify the effectiveness of our scheme for optimizing the use of HBM by using NAS Parallel Benchmarks.
Keyword
Many core; High-bandwidth memory (HBM); Scheduling; Parallel program
Journal Title
Cluster Computing
ISSN
1386-7857
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Appears in Collections:
7. KISTI 연구성과 > 학술지 발표논문
URI
https://repository.kisti.re.kr/handle/10580/14746
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