Through the proposed sda flow, the designer is relieved from implementation details and the design time of systems targeting heterogeneous nocbased mpsocs on fpga is significantly reduced. Fpga prototyping and design evaluation of a nocbased. In recent years, the number and variety of heterogeneous multiprocessor systemonchip mpsocs, such as for instance zynq platforms, has sensibly increased. Task mapping in heterogeneous mpsocs for system level design.
Acm transactions on embedded computing systems tecs, 141. Labview, synchronous data flow lee and messerschmitt 1987 or kahn process networks. Thus, further optimization is possible with such hardware design freedom. Based on an mpi program, a heterogeneous mpsoc for fpgas consisting of several microblaze processors and accelerators is generated. The proposed flow determines the minimum resources required to map and guarantee the. Building heterogeneous reconfigurable systems with a hardware microkernel.
Also, a fast and accurate method to explore the design space of heterogeneous mpsocs mapped on a csoc by performing the exploration in situ on the same target platform is also presented. In this paper, a complete design flow is proposed for partially reconfigurable heterogeneous mpsoc platforms. For such platforms, the software compilation approach of the previous chapter would not leverage all the computing power. Programming heterogeneous mpsocs multiprocessor systems on chip is a grand challenge for embedded soc providers and users today. Thus the mapping must be dynamically adapted depending on data and on communication loads between the. Cloudbased design and virtual prototyping environment for. Extend dsp design to heterogeneous hardware platforms.
A compiler infrastructure for embedded heterogeneous mpsocs. Poweraware software mapping of parallel applications onto. An heterogeneous compiler of dataflow programs for zynq. It is based on a set of steps that allow as to synthesize a soc integrating software and hardware components that respect the imposed design constraints e. The computational demand of signal processing algorithms is rising continuously. More specifically, the proposed design flow allows a system designer to specify both a system at an algorithm level of abstraction and also a high level of mixed hardware software system in simulink, as shown in fig. This leads to 100% accurate results, while at the same time accelerates the exploration time compared to a method based on using cycleaccurate models. A standard design flow is typically composed by four main steps. Heterogeneous multi and manyprocessor systems on chip mpsoc composed of different core architectures are seen as solution exploiting the advantages of mpsocs. This book provides embedded software developers with techniques for programmingheterogeneous multiprocessor systemsonchip mpsocs, capable of executing multiple applications simultaneously. In addition, it reduces possible design errors proposing a completely automated technique for fast prototyping.
Design exploration for heterogeneous mpsocs conclusions motivation 1 design complexity is outgrowing the traditional rtl method behavioral synthesis. Software compilation techniques for heterogeneous embedded multicore systems 5 fig. A design flow for partially reconfigurable heterogeneous. Benefits of a heterogeneous platformbased design flow heterogeneous platformbased design flows extend those design automation concepts adopted by the individual processor and fpga design flows to the entire platform. To achieve our goal, a platform template and a hardware software co design tool flow with design time analysis capability are required.
A modelbased design approach for heterogeneous nocbased. Page 1 platformbased synthesis for fieldprogrammable socs prof. Multicpufpga platform based heterogeneous multiprocessor. In this paper, we argue the need for and significance of positioning the language and tool design from the perspective of practicality to address this challenge. Current multimedia applications demand complex heterogeneous multiprocessor architectures with specific communication infrastructure in order to achieve the required performances.
Platformbased software design flow for heterogeneous mpsoc. Tool flows to close the software productivity authors. This paper presents an automatic development environment for heterogeneous mpsocs that decreases the software productivity gap. It describes a set of algorithms and methodologies to narrow the software productivity gap, as well as an indepth description of the underlying. Modern platform fpgas are now large enough to support complete heterogeneous multiprocessor systemonchips mpsocs, however standardized design flows and programming models for such platforms do. The front end checks for the lexical, syntactic and. Programming heterogeneous mpsocs tool flows to close the. Popovici k, guerin x, rousseau f, paolucci p, jerraya aa 2008 platformbased software design flow for heterogeneous mpsoc. We believe that the use of an efficient platformbased design methodology is a promising approach to close this gap. Sesame is a software framework that aims at developing a modeling and simulation environment for the efficient design space exploration of heterogeneous embedded systems. Chapter 1 explained how heterogeneous mpsocs for highend applications will continue to have hardware acceleration and specialized processors in order to meet tight energy constraints. Energy efficient scheduling algorithm for the multicore.
A hybrid task mapping algorithm for heterogeneous mpsocs. Coarse view of a mpsoc compiler a singlecore compiler is typically divided into three phases. Automating the design of mlut mpsopc fpgas in the cloud. However, today all design flow solutions capable of programming the different components of such platforms require to the designer either to modify the software or hardware based designs to obtain higher. This book provides embedded software developers with techniques for programming heterogeneous multiprocessor systemsonchip mpsocs, capable of executing multiple applications simultaneously. Sdsoc, on the other hand, is a commercial tool provided by xilinx that builds rapid prototypes of mixed hardware software systems on top of heterogeneous mpsocs by hiding from the user all the lowlevel architectural details of system integration e. The nucleus tool flow for efficient and portable software defined radio, analog integrated circuits and signal processing. Abstractthe hartesholistic approach to reconfigurable real time embedded systems design flow addresses the development of an holistic toolchain for reconfigurable heterogeneous platforms.
Tools and dataflowbased programming models for heterogeneous mpsocs jeronimo castrillon chair for compiler construction. Cloudbased design and virtual prototyping environment for embedded systems the design and test of multiprocessor systemonchips mpsocs and development of distributed applications andor operating systems executed on those hardware platforms is one of the biggest challenges in todays system design. An mpsoc compiler is a toolchain to tackle the problems of application modeling, platform description, software parallelization, software distribution and code generation for an efficient usage of the target platform. Building heterogeneous reconfigurable systems with a. Dma transfer management, platformbased design, etc. Proceedings of the conference on design, automation and test in europe, pp. The hw integration level of commercial mpsoc platforms increases at a. Programming heterogeneous mpsocs springer for research. Tool flows to close the software productivity gap authors. The tool flows are evaluated on virtual platforms vps, which mimic different. Programming heterogeneous mpsocs tool flows to close the software productivity gap.
The co design provides solutions for this type of development. Platformbased software design flow for heterogeneous. The basic tenets of platformbased design are to abstract away the. Design space exploration of heterogeneous mpsocs with. Considering the evolution towards highly variable data flow applications based on an increasing impact of dynamic actors, we must target at runtime the best matching between dataflow graphs and heterogeneous multiprocessor platforms. The tool flows are evaluated on virtual platforms vps, which mimic different characteristics of stateoftheart heterogeneous mpsocs. Extensions for software defined radio springerlink. But to be able to take advantage of these systems, new strategies are required to map applications to such a system and to evaluate the systems performance at a very early design. This chapter discusses various aspects of compilers for heterogeneous embedded multicore systems, using the wellestablished. Mapping application software onto heterogeneous mpsocs. A mapping framework based on packing for design space. However, one of the biggest hurdles to exploit multicore architectures from the software side is how to efficiently develop performance and power cooptimised parallel software. It describes a set of algorithms and methodologies to narrow the software productivity gap, as well as an indepth description of the underlying problems and.
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