Parallelism point selection in nested parallelism situations with focus on the bandwidth selection problem평활량 선택문제 측면에서 본 중첩병렬화 상황에서 병렬처리 포인트선택
- Other Titles
- 평활량 선택문제 측면에서 본 중첩병렬화 상황에서 병렬처리 포인트선택
- Authors
- 조가영; 노호석
- Issue Date
- Jun-2018
- Publisher
- 한국통계학회
- Keywords
- 병렬처리; 병렬화 포인트 선택; 빅데이터; 평활량선택; bandwidth selection; big data; parallel computing; parallelism point selection
- Citation
- 응용통계연구, v.31, no.3, pp 383 - 396
- Pages
- 14
- Journal Title
- 응용통계연구
- Volume
- 31
- Number
- 3
- Start Page
- 383
- End Page
- 396
- URI
- https://scholarworks.sookmyung.ac.kr/handle/2020.sw.sookmyung/2032
- ISSN
- 1225-066X
- Abstract
- Various parallel processing R packages are used for fast processing and the analysis of big data. Parallel processing is used when the work can be decomposed into tasks that are non-interdependent. In some cases, each task decomposed for parallel processing can also be decomposed into non-interdependent subtasks. We have to choose whether to parallelize the decomposed tasks in the first step or to parallelize the subtasks in the second step when facing nested parallelism situations. This choice has a significant impact on the speed of computation; consequently, it is important to understand the nature of the work and decide where to do the parallel processing. In this paper, we provide an idea of how to apply parallel computing effectively to problems by illustrating how to select a parallelism point for the bandwidth selection of nonparametric regression.
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