Local rollback for fault-tolerance in parallel computing systems

US8103910B2 · kind B2 · utility

Assignee

• International Business Machines Corporation · US

Inventors

• Matthias A. Blumrich · Ridgefield, US
• Dong Chen · Scarsdale, US
• Alan Gara · Mount Kisco, US
• Mark E. Giampapa · Dobbs Ferry, US
• Philip Heidelberger · Somers, US
• Martin Ohmacht · Yorktown Heights, US
• Burkhard Steinmacher-Burow · Eßlingen, DE
• Krishnan Sugavanam · Yorktown Heights, US

Key dates

• Filing date: Jan 29, 2010
• Grant date: Jan 24, 2012
• Expiry date: Jan 29, 2030

Classification

• Technology area (CPC G): Physics
• CPC primary: G06F9/30072
• WIPO field: Computer technology
• WIPO sector: Electrical engineering

Abstract

A control logic device performs a local rollback in a parallel super computing system. The super computing system includes at least one cache memory device. The control logic device determines a local rollback interval. The control logic device runs at least one instruction in the local rollback interval. The control logic device evaluates whether an unrecoverable condition occurs while running the at least one instruction during the local rollback interval. The control logic device checks whether an error occurs during the local rollback. The control logic device restarts the local rollback interval if the error occurs and the unrecoverable condition does not occur during the local rollback interval.