Compiler Support for Accelerating C++11 Range-Based Loops on Heterogeneous Systems
Chaturapat Suwancharoen, Worawan Marurngsith · International Journal of Computer and Electrical Engineering · 2015
Using directive techniques for accelerating loops on heterogeneous systems, object-oriented programs can be hundreds of folds faster with a short learning curve required from programmers.Despite much research on various loop parallelization techniques, the opportunity to accelerate a compact construct like range-based loops using directive-based compilers has not yet been investigated.The paper addresses this issue and presents directive-based compiler techniques for accelerating range-based loops using OpenCL.The experimental results based on two workloads show the speedup of 3-135 folds achieved from accelerating range-based loops using the proposed compiler.The literature review depicts an average of 12-135 folds speedup gain by using traditional loop acceleration by existing directive-based compilers.This highlights the potential of exploiting loop-level parallelism by using range-based loop acceleration.