caa a22 4500 445852291 CHVBK 20180317145417.0 cr unu---uuuuu 170323e20110701xx s 000 0 eng 10.1007/s11227-011-0561-0 doi (NATIONALLICENCE)springer-10.1007/s11227-011-0561-0 Multi-CMP system with data communication on the fly [Elektronische Daten] [Marek Tudruj, Lukasz Masko, Miroslaw Thor] The paper concerns new communication solutions for hierarchical Chip Multiprocessor (CMP) systems composed of many CMP modules interconnected by a global data exchange network. New architectural solutions for internal module data communication are presented in the presence of hierarchical data caches in CMP modules. Inside CMP modules, dynamic shared memory core clusters are organized around L1-L2 data cache busses. Such clusters enable a group-oriented data communication based on reads on the fly to L1 banks of data present on the busses by many cores at a time. Dynamic switching of cores between such L1-L2 busses is done with porting data in core's L1 caches. Together with data reads on the fly, it provides a very efficient intercluster "communication on the fly,” especially useful for transfers of strongly shared data. It provides fast cache to cache group data transmissions and eliminates standard transactions based on shared memory in the system. Comparative experimental results based on automatic scheduling of program data flow graphs and execution in a simulator of the proposed architecture evaluate the assumed architectural solutions. The multi-CMP system structure is assessed while taking into account technological limitations of the size of the single CMP module. The Author(s), 2011 Modular CMP systems nationallicence Program execution control nationallicence Dynamic shared memory clusters nationallicence Communication on the fly nationallicence Tudruj Marek Institute of Computer Science of the Polish Academy of Sciences, ul. Ordona 21, 01-237, Warsaw, Poland aut Masko Lukasz Institute of Computer Science of the Polish Academy of Sciences, ul. Ordona 21, 01-237, Warsaw, Poland aut Thor Miroslaw Telemark University College, Hallvard Eikas plass, 3800, Bo i Telemark, Norway aut The Journal of Supercomputing Springer US; http://www.springer-ny.com 57/1(2011-07-01), 51-64 0920-8542 57:1<51 2011 57 11227 https://doi.org/10.1007/s11227-011-0561-0 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11227-011-0561-0 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Tudruj Marek Institute of Computer Science of the Polish Academy of Sciences, ul. Ordona 21, 01-237, Warsaw, Poland aut NATIONALLICENCE 700 1- Masko Lukasz Institute of Computer Science of the Polish Academy of Sciences, ul. Ordona 21, 01-237, Warsaw, Poland aut NATIONALLICENCE 700 1- Thor Miroslaw Telemark University College, Hallvard Eikas plass, 3800, Bo i Telemark, Norway aut NATIONALLICENCE 773 0- The Journal of Supercomputing Springer US; http://www.springer-ny.com 57/1(2011-07-01), 51-64 0920-8542 57:1<51 2011 57 11227 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer