Fig. 9From: Parallel acceleration of CPU and GPU range queries over large data setsSpeedups (vertical axes) for the GPU methods compared to the CPU reduction method (using the number of cores shown in the legend) grouped by the GPU range query method (horizontal axes). The Zipf data set skews are appended (e.g., Zipf0 is the Zipf data set with a skew of 0). The horizontal dashed line indicates a speedup of 1 ×. All plots share the same legendBack to article page