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- W98247645 abstract "Iteration space tiling is a common strategy used by parallelizing compilers to reduce communication overhead. We address the problem of determining the optimal tile size (which minimizes the total execution time of the program), for a particular program schema. We use a realistic model of the architecture which accounts for coprocessors that permit overlapping of communication and computation, context switching times, etc. Determining the optimal tile size is shown to reduce to a non-linear optimization problem. We solve this analytically, yielding a closed form solution that involves only parameters of the architecture and program that are easily determined at compile time. It can thus be used by a compiler before code generation. Although we solve the problem for a particular schema of programs, our results can be generalized to uniform dependence loops and also to certain classes of loop programs with dynamic dependence vectors." @default.
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- W98247645 date "1994-01-01" @default.
- W98247645 modified "2023-09-25" @default.
- W98247645 title "Optimal tile sizing" @default.
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- W98247645 doi "https://doi.org/10.1007/3-540-58430-7_61" @default.
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