Run-time demand estimation and modulation of on-chip decaps at system level for leakage power reduction in multicore chips

Leilei Wang, Cheng Zhuo, Pingqiang Zhou

Abstract: Highlights•We propose an approximate approach to estimate the demand capacitance of each decap at runtime.•We achieve runtime decap modulation by the idea of Gated decap, which can turn off part of each decap to save leakage power.•We did experiments to show the decap leakage saving and the efficiency of the improvement techniques.