Adaptive multi-stage slack borrowing for high performance error resilient computing

US8552765B2 · kind B2 · utility

Assignees

• STMicroelectronics International N.V. · NL
• STMicroelectronics SA

Inventors

• Chittoor Parthasarathy · Noida, IN
• Nitin Chawla · Noida, IN
• Kallol Chatterjee · Noida, IN
• Pascal Urard · Theys, FR

Key dates

• Filing date: Jun 30, 2011
• Grant date: Oct 8, 2013
• Expiry date: Aug 16, 2031

Classification

• Technology area (CPC H): Electricity
• CPC primary: H03K3/0375
• WIPO field: Basic communication processes
• WIPO sector: Electrical engineering

Abstract

Adaptive scaling digital techniques attempt to place the system close to the timing failure so as to maximize energy efficiency. Rapid recovery from potential failures is usually by slowing the system clock and/or providing razor solutions (instruction replay.) These techniques compromise the throughput. We present a technique to provide local in-situ fault resilience based on dynamic slack borrowing. This technique is non-intrusive (needs no architecture modification) and has minimal impact on throughput.