Fine-Grained Hardware Mitigation for Multiple Long-Duration Transients on VLIW Function Units

Rafail Psiakis (1) , Angeliki Kritikakou (1) , Olivier Sentieys (1)

1 CAIRN - Energy Efficient Computing ArchItectures with Embedded Reconfigurable Resources

Technology scaling makes hardware more susceptible to radiation, which can cause multiple transient faults with long duration. In these cases, the affected function unit is usually considered as faulty and is not further used. To reduce this performance degradation, the proposed hardware mechanism detects the faults that are still active during execution and re- schedules the instructions to use the fault-free components of the affected function units. The results show multiple long-duration fault mitigation with low performance, area, and power overhead.

Domaines: Systèmes embarqués; Architectures Matérielles [cs.AR]; Arithmétique des ordinateurs; Traitement du signal et de l'image [eess.SP]

Rafail Psiakis, Angeliki Kritikakou, Olivier Sentieys. Fine-Grained Hardware Mitigation for Multiple Long-Duration Transients on VLIW Function Units. DATE 2019 - 22nd IEEE/ACM Design, Automation and Test in Europe, Mar 2019, Florence, Italy. pp.976-979, ⟨10.23919/DATE.2019.8714899⟩. ⟨hal-01941860⟩