Fault Survivability of Lightweight Operating Systems for exascale

Technical Report · 01 September 2014

DOI:https://doi.org/10.2172/1459775· OSTI ID:1459775

Ferreira, Kurt Brian ^[1]

---

1. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

Concern is growing in the High-Performance Computing community regarding the reliability of proposed exascale systems. Current research has shown that the expected reliability of these machines will greatly reduce their scalability. In constrast to current fault tolerance methods whose reliability focus is only the application, this project investigates the benefits integrating reliability mechcanisms in the operating system and runtime, as well as the appli- cation. More specifically, this project has three broad contributions in the field: First, using failure logs from current leadership-class high-performance computing systems, we outline the failures common on these large-scale systems. Second, we describe a novel memory pro- tection mechcanism capable of protecting common observed failures that uses the similarity inherrant in many OS and applications state, thereby reducing overheads. Finally, using an analogy with OS jitter, we develop a highly effecient simulator capable predicting the performance of resilience methods at the scales expected for future extreme-scale systems.

• Research Organization: Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)
• Sponsoring Organization: USDOE National Nuclear Security Administration (NNSA); USDOE Laboratory Directed Research and Development (LDRD) Program
• DOE Contract Number: AC04-94AL85000
• Other Award/Contract Number: 158802
• OSTI ID: 1459775
• Report Number(s): SAND2014-17735; 665437
• Country of Publication: United States
• Language: English

Related Subjects

97 MATHEMATICS AND COMPUTING