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using Multi-gpu acceleration to find view factors

2021

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Notably different than the rest of the projects in this portfolio, this page is to showcase my published conference paper that I presented at the International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics in 2021.

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Under the supervision of Dr. Matthew Barry at the University of Pittsburgh and in collaboration with NASA's Jet Propulsion Lab, I contributed to a project working to calculate the view factor of thermoelectric generators using ray-tracing. The view factor is a metric for the proportion of radiation shared between two bodies, while ray tracing is the method of tracking the trajectory of a path from an emitter to a receiver.

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The calculating program itself had already been established by previous student researchers, but my contribution was that of implementing multi-GPU acceleration. By subdividing the code onto each available GPU of a computer the total computational time could be reduced by a linear factor of how many GPUs were used. The maximum speed-up ratio achieved was 1.89, indicating near-perfect linear speed-up.

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