Algorithm-Based Checkpoint-Recovery for the Conjugate Gradient Method
Carlos Pachajoa, Christina Pacher, Markus Levonyak, Wilfried N. Gansterer · 2020
As computers reach exascale and beyond, the incidence of faults will increase. Solutions to this problem are an active research topic. We focus on strategies to make the preconditioned conjugate gradient (PCG) solver resilient against node failures, specifically, the exact state reconstruction (ESR) method, which exploits redundancies in PCG.