1. BWLOCK++: Protecting GPU Kernels on Integrated CPU-GPU Platforms
Waqar Ali, Heechul Yun
Department of Electrical Engineering and Computer Science
University of Kansas at Lawrence

2. Introduction
Platforms with integrated GPUs provide excellent SWaP benefits
Image Courtesy:
NVIDIA Tegra K-1
NVIDIA Tegra X-1
NVIDIA Tegra X-2

3. Problem Statement
Sharing of main memory between CPU and GPU can be harmful
(a) Solo Execution
(a) Co-run Execution

4. Solution: BWLOCK++ Step-1 Step-2 Step-3
Limit the bandwidth of non-RT CPU applications
Step-2
Periodically throttle the CPU bandwidth offenders
Step-3
Ensure that system is not stagnant