Programming the FlexRAM parallel intelligent memory system

In an intelligent memory architecture, the main memory of a computer is enhanced with many simple processors. The result is a highly-parallel, heterogeneous machine that is able to exploit computation in the main memory. While several instantiations of this architecture have been proposed, the question of how to effectively program them with little effort has remained a major challenge. In this paper, we show how to effectively hand-program an intelligent memory architecture at a high level and with very modest effort. We use FlexRAM as a prototype architecture. To program it, we propose a family of high-level compiler directives inspired by OpenMP called CFlex. Such directives enable the processors in memory to execute the program in cooperation with the main processor. In addition, we propose libraries of highly-optimized functions called Intelligent Memory Operations (IMOs). These functions program the processors in memory through CFlex, but make them completely transparent to ...

• Type: Conference
• Year: 2003
• Where: PPOPP
• Authors: Basilio B. Fraguela, Jose Renau, Paul Feautrier, David A. Padua, Josep Torrellas
• Keywords: Distributed And Parallel Computing, Intelligent Memory, Intelligent Memory Architecture, Main Memory, PPOPP 2003