Parallel loops are an important part of OpenMP programs. Efficient scheduling of parallel loops can improve performance of the programs. The current OpenMP specification only offers three options for loopscheduling, ...
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ISBN:
(纸本)9783030285968;9783030285951
Parallel loops are an important part of OpenMP programs. Efficient scheduling of parallel loops can improve performance of the programs. The current OpenMP specification only offers three options for loopscheduling, which are insufficient in certain instances. Given the large number of other possible scheduling strategies, standardizing each of them is infeasible. A more viable approach is to extend the OpenMP standard to allow a user to define loopscheduling strategies within her application. The approach will enable standard-compliant application-specific scheduling. This work analyzes the principal components required by user-definedscheduling and proposes two competing interfaces as candidates for the OpenMP standard. We conceptually compare the two proposed interfaces with respect to the three host languages of OpenMP, i.e., C, C++, and Fortran. These interfaces serve the OpenMP community as a basis for discussion and prototype implementation supporting user-definedscheduling in an OpenMP library.
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