Software-only based Diverse Redundancy for ASIL-D Automotive Applications on Embedded HPC Platforms

High-Performance Computing (HPC) platforms become a must in automotive systems to enable autonomous driving. However, automotive platforms must avoid Common Cause Failures (CCFs), as indicated by the ISO26262 automotive safety standard. CCFs can be avoided enforcing diverse redundancy. Unfortunately, HPC platforms fail to provide such support. This paper proposes a flexible and efficient software-based scheme to implement diverse redundancy on HPC platforms. A software implementation on a Commercial Off-The-Shelf ARM multicore proves the effectiveness of this scheme to guarantee diverse redundancy with negligible performance degradation. Our solution is the first step towards an automotive-compliant HPC platform.