Paper accepted @ VTS 2018

General Purpose computing on Graphics Processing Unit offers a remarkable speedup for data parallel workloads, leveraging GPUs computational power. However, differently from graphic computing, it requires highly reliable operation in most of application domains.

In this new paper that will be presented at the IEEE VLSI Test Symposium 2018 (VTS’18) we talk about a “Multi-faceted Microarchitecture Level Reliability Characterization for NVIDIA and AMD GPUs“. The paper is the outcome of a collaboration between the TestGroup of  Politecnico di Torino and the Computer Architecture Lab of the University of Athens started under the FP7 Clereco Project. It presents an extended study based on a consolidated workflow for the evaluation of the reliability in correlation with the performance of four GPU architectures and corresponding chips: AMD Southern Islands and NVIDIA G80/GT200/Fermi. We obtained reliability measurements (AVF and FIT) employing both fault injection and ACE-analysis based on microarchitecture-level simulators. Apart from the reliability-only and performance-only measurements, we propose combined metrics for performance and reliability (to quantify instruction throughput or task execution throughput between failures) that assist comparisons for the same application among GPU chips of different ISAs and vendors, as well as among benchmarks on the same GPU chip.

VTS’18 will be held at the Hyatt Hotel, San Francisco, CA (USA)  on April 22-25, 2018.


Stefano Di CARLO





Paper Info:

Alessandro Vallero§ , Sotiris Tselonis, Dimitris Gizopoulos* and Stefano Di Carlo§, “Multi-faceted Microarchitecture Level Reliability Characterization for NVIDIA and AMD GPUs”, IEEE VLSI Test Symposium 2018 (VTS 2018), San Francisco, CA (USA),  April 22-25, 2018.

∗Politecnico di Torino, Italy. Email: stefano.dicarlo,
†University of Athens, Greece Email:

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