Abstract
Large synchronization and communication overhead will become a major concern in future extreme-scale machines (e.g., HPC systems, supercomputers). These systems will push upwards performance limits by adopting chips equipped with one order of magnitude more cores than today. Alternative execution models can be explored in order to exploit the high parallelism offered by future massive many-core chips. This paper proposes the integration of standard cores with dedicated co-processing units that enable the system to support a fine-grain data-flow execution model developed within the TERAFLUX project. An instruction set architecture extension for supporting fine-grain thread scheduling and execution is proposed. This instruction set extension is supported by the co-processor that provides hardware units for accelerating thread scheduling and distribution among the available cores. Two fundamental aspects are at the base of the proposed system: the programmers can adopt their preferred programming model, and the compilation tools can produce a large set of threads mainly communicating in a producer–consumer fashion, hence enabling data-flow execution. Experimental results demonstrate the feasibility of the proposed approach and its capability of scaling with the increasing number of cores.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.