OS Support for Load Scheduling on Accelerator-based Heterogeneous Systems

Ayman Tarakji, Niels Ole Salscheider, David Hebbeker
2014 Procedia Computer Science  
The involvement of accelerators is becoming widespread in the field of heterogeneous processing, performing computation tasks through a wide range of applications. With the advent of the various computing architectures existing currently, the need for a system-wide multitasking environment is increasing. Therefore, we present an OpenCL-based scheduler that is designed as a multi-user computing environment to make use of the full potential of available resources while running as a daemon.
more » ... e tasks can be issued by means of a C++ API that relies on the OpenCL C++ wrapper. At this point, the daemon takes over the control immediately and performs load scheduling. Due to its implementation, our approach can be easily applicable to a common OS. We validate our method through extensive experiments deploying a set of applications, which show that the low scheduling costs remain constant in total over a wide range of input size. Besides the different CPUs, a variety of modern GPU and other accelerator architectures are used in the experiments.
doi:10.1016/j.procs.2014.05.021 fatcat:w6myygnte5g2zjefkrakyfvefy