OMP2HMPP: Compiler Framework for Energy Performance Trade-off Analysis of Automatically Generated Codes
Albert Sa\`a-Garriga, David Castells-Rufas, Jordi Carrabina

TL;DR
OMP2HMPP is a compiler framework that automatically transforms OpenMP code into various HMPP versions, evaluates their performance and power consumption, and helps select the most efficient code variant, achieving significant speed-ups and energy savings.
Contribution
It introduces an automated method for exploring energy-performance trade-offs in code transformations from OpenMP to HMPP, matching expert manual optimizations.
Findings
Achieves an average speed-up of 31x over original code.
Attains a 5.86x improvement in operations per watt.
Automatically finds transformations equivalent to expert manual tuning.
Abstract
We present OMP2HMPP, a tool that, in a first step, automatically translates OpenMP code into various possible transformations of HMPP. In a second step OMP2HMPP executes all variants to obtain the performance and power consumption of each transformation. The resulting trade-off can be used to choose the more convenient version. After running the tool on a set of codes from the Polybench benchmark we show that the best automatic transformation is equivalent to a manual one done by an expert. Compared with original OpenMP code running in 2 quad-core processors we obtain an average speed-up of 31x and 5.86x factor in operations per watt.
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Taxonomy
TopicsParallel Computing and Optimization Techniques · Embedded Systems Design Techniques · Real-Time Systems Scheduling
