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Error Propagation Analysis (EPA) is a technique forunderstanding how errors affect a program's execution and resultin program failures. For this purpose, EPA usually compares thetraces of a fault-free (golden) run with those from a faulty run ofthe program. This makes existing EPA approaches brittle for multithreadedprograms, which do not typically have a deterministicgolden run. In this paper, we...
The Program Vulnerability Factor (PVF) has been proposed as a metric to understand the impact of hardware faults on software. The PVF is calculated by identifying the program bits required for architecturally correct execution (ACE bits). PVF, however, is conservative as it assumes that all erroneous executions are a major concern, not just those that result in silent data corruptions, and it also...
Hardware errors are becoming more prominent with reducing feature sizes, however tolerating them exclusively in hardware is expensive. Researchers have explored software-based techniques for building error resilient applications for hardware faults. However, software based error resilience techniques need configurable and accurate fault injection techniques to evaluate their effectiveness. In this...
Intermittent hardware faults are hard to diagnose as they occur non-deterministically at the same location. Hardware-only diagnosis techniques incur significant power and area overheads. On the other hand, software-only diagnosis techniques have low power and area overheads, but have limited visibility into many micro-architectural structures and hence cannot diagnose faults in them. To overcome these...
Hardware errors are on the rise with reducing feature sizes, however tolerating them in hardware is expensive. Researchers have explored software-based techniques for building error resilient applications. Many of these techniques leverage application-specific resilience characteristics to keep overheads low. Understanding application-specific resilience characteristics requires software fault-injection...
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