Experimental evaluation of GPUs radiation sensitivity and algorithm-based fault tolerance efficiency

Experimental results demonstrate that Graphic Processing Units are very prone to be corrupted by neutrons. We have performed several experimental campaigns at ISIS, UK and at LANSCE, Los Alamos, NM, USA accessing the sensitivity of the GPU internal resources as well as the error rate of common parallel algorithms. Experiments highlight output error patterns and radiation responses that can be fruitfully used to design optimized Algorithm-Based Fault Tolerance strategies and provide pragmatic programming guidelines to increase the code reliability with low computational overhead.