Regression Modelling of Power Consumption for Heterogeneous Processors
This thesis is composed of two parts, that relate to both parallel and heterogeneous processing. The first describes DistCL, a distributed OpenCL framework that allows a cluster of GPUs to be programmed like a single device. It uses programmer-supplied meta-functions that associate work-items to mem...
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| Language: | en_ca |
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2013
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| Online Access: | http://hdl.handle.net/1807/42818 |
| Summary: | This thesis is composed of two parts, that relate to both parallel and heterogeneous processing.
The first describes DistCL, a distributed OpenCL framework that allows a cluster of GPUs to be programmed like a single device.
It uses programmer-supplied meta-functions that associate work-items to memory.
DistCL achieves speedups of up to 29x using 32 peers.
By comparing DistCL to SnuCL, we determine that the compute-to-transfer ratio of a benchmark is the best predictor of its performance scaling when distributed.
The second is a statistical power model for the AMD Fusion heterogeneous processor.
We present a systematic methodology to create a representative set of compute micro-benchmarks using data collected from real hardware.
The power model is created with data from both micro-benchmarks and application benchmarks.
The model showed an average predictive error of 6.9% on heterogeneous workloads.
The Multi2Sim heterogeneous simulator was modified to support configurable power modelling. |
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