Thermal-aware register allocation with loop-unrolling

High temperature can damage the hardware significantly in many aspects. The register file has been shown as a thermal hot spot while executing workloads. To avoid side effects caused by high temperature, reducing the temperature of a register file is a very efficient way. In this paper, we focus on compilation optimization to address this issue based on loop unrolling without hardware support. Our approach can distribute the temperature evenly across all registers with respect to a workload. The evaluation shows that our approach is effective for most cases.