Program power profiling based on phase behaviors

•We proposed a novel method for predicting the power consumption of a complete workload or application.•The model extrapolate the power consumption of only a few code segments of the same application obtained from measurement.•Our method employs a set of code analysis tools to capture the program's phase behavior and then adopts a multi-variable linear regression method to estimate the power consumption of the entire program.•Our method is compatible with both serial programs and parallel programs which can be widely used among personal computer or supercomputers.