Aging-Aware Compiler-Directed VLIW Assignment for GPGPU Architectures

Provided by: Association for Computing Machinery
Topic: Hardware
Format: PDF
Negative Bias Temperature Instability (NBTI) adversely affects the reliability of a processor by introducing new delay-induced faults. However, the effect of these delay variations is not uniformly spread across functional units and instructions: some are affected more (hence less reliable) than others. This paper proposes a NBTI-aware compiler-directed Very Long Instruction Word (VLIW) assignment scheme that uniformly distributes the stress of instructions with the aim of minimizing aging of GPGPU architecture without any performance penalty.

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