RT info:eu-repo/semantics/conferenceObject
T1 Multi-Device Controllers: A Library To Simplify The Parallel Heterogeneous Programming
A1 Moretón Fernández, Ana
A1 González Escribano, Arturo
A1 Llanos Ferraris, Diego Rafael
AB Current HPC clusters are composed by several machines with different computation capabilities and different kinds and families of accelerators. Programming efficiently for these heterogeneous systems has become an important challenge. There are many proposals to simplify the programming and management of accelerator devices, and the hybrid programming mixing accelerators and CPU cores. However, the portability compromises in many cases the efficiency on different devices, and there are details about the coordinationof different types of devices that should be still tackled by the programmer. In this work we introduce the Multi-Controler (MCtrl), an abstract entity implemented in a library, that coordinates the management of heterogeneous devices, including accelerators withdifferent capabilities and sets of CPU-cores. Our proposal improves state-of-the-art solutions, simplifying the data partition, mapping, and transparent deployment of both, simple generic kernels portable across different device types, and specialized implementationsdefined and optimized using specific native or vendor programming models (such as CUDA for NVIDIA’s GPUs, or OpenMP for CPU-cores). The run-time system automatically selects and deploys the most appropriate implementation of each kernel for each device, managing the data movements, and hiding the launching details. Results of an experimental study with fourstudy cases indicates that our abstraction allows the development of flexible and high efficient programs, that adapt to the heterogeneous environment.
PB Universidad de Valladolid, Escuela de Ingeniería Informática
YR 2017
FD 2017
LK http://uvadoc.uva.es/handle/10324/29136
UL http://uvadoc.uva.es/handle/10324/29136
LA eng
NO HiPEAC 2017 Workshop on High-Level Parallel Programming for GPUs (HLPGPU), Estocolmo, Suecia, Jan. 2017
NO Producción Científica
DS UVaDOC
RD 23-dic-2024