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HPCA
2009
IEEE

Eliminating microarchitectural dependency from Architectural Vulnerability

14 years 4 months ago
Eliminating microarchitectural dependency from Architectural Vulnerability
The Architectural Vulnerability Factor (AVF) of a hardware structure is the probability that a fault in the structure will affect the output of a program. AVF captures both microarchitectural and architectural fault masking effects; therefore, AVF measurements cannot generate insight into the vulnerability of software independent of hardware. To evaluate the behavior of software in the presence of hardware faults, we must isolate the software-dependent (architecture-level masking) portion of AVF from the hardware-dependent (microarchitecture-level masking) portion, providing a quantitative basis to make reliability decisions about software independent of hardware. In this work, we demonstrate that the new Program Vulnerability Factor (PVF) metric provides such a basis: PVF captures the architecture-level fault masking inherent in a program, allowing software designers to make quantitative statements about a program's tolerance to soft errors. PVF can also explain the AVF behavior...
Vilas Sridharan, David R. Kaeli
Added 25 Nov 2009
Updated 25 Nov 2009
Type Conference
Year 2009
Where HPCA
Authors Vilas Sridharan, David R. Kaeli
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