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Code Generation and Scheduling for Parallelization of Multi-Dimensional Perfectly Nested Loops

Saeed Parsa, Shahriar Lotfi

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دوازدهمین کنفرانس بین‌المللی سالانه انجمن کامپیوتر ایران

مربوط به کنفرانس

Tiling transformation is widely used to efficiently execute loops on parallel architectures. Automatic code generation for tiled loops can be a very complicated compiler work due to non-rectangular tile shapes and arbitrary iteration space bounds. A wave-front approach can simplify code generation for tiled loops. In this paper wave-fronts are applied to generate code for multi-dimensional irregular tiled loops. Also, an improved block scheduling strategy is presented to exploit wave-front parallelism for multi-dimensional tiled spaces. Experimental results show that the proposed scheduling strategy outperforms likely most currently implemented strategies.

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