Composing heterogeneous software architectures

Composing heterogeneous software architectures core. If cloud users are to be able to take advantage of the performance and ef. An introduction to heterogeneous multicore processing. Pdf on the definition of software system architecture. Sorry, we are unable to provide the full text but you may find it at the following locations. Formal frameworks for embedded software make programming models and software architectures reusable. In the past, grid computing and batch scheduling have. Design principles for making architectural tradeoffs between. We describe a model of pure styles and of their composition. Responsible frameworks for heterogeneous modeling and design. Mar 25, 20 in this article we demonstrate the potential of software optimized for highlyintegrated system on a chip soc architectures. There are some important mechanisms supporting abc to compose heterogeneous components from software architecting, composition, and deployment to runtime, including abcadl, automated generation of. We describe a model of pure styles, and a model of their composition.

But instead of viewing these heterogeneous architectures as. Roshandel, r calculating architectural reliability via modeling and analysis. He is currently working as technical architect at adeptchips, bengaluru. I assume that very few systems will ever exist in a consistent form for more than a short period of time. The different existing software entities offer different. Abdallah, a composing heterogeneous software architectures. We present a compositional theory of heterogeneous reactive systems. We examine the problem of providing a model for the composition of different architectural styles within software systems, i. Introduction to heterogeneous multicore processing architecture nowadays people look to achieve highperformance processing and low power requirements for their devices. A key to reuse, proceedings of the first acm sigsoft symposium on the. The hsa is being developed by the hsa foundation, which includes amd and arm. The platforms stated aim is to reduce communication latency between cpus, gpus. This is a side effect of the reality that software development, in most cases. Aiming at a sound approach, a proper description of the different architectural building blocks and their properties is required.

Composing heterogeneous software architectures semantic scholar. We also summarize the steps in our approach to solving. There is a lack of formally defined testing techniques at the architecture level. The emergence of software architectures and architectural styles has introduced a higher level of abstraction at which we can create and compose software systems. Toward a catalogue of architectural bad smells proceedings. Composing multiple parallel codes over heterogeneous.

Software projects involving integration of multiple commercial as well as inhouse components, often confront interoperability problems. We are working at the boundary between microserver system architecture and system software. Section 2 presents related work addressing functional abstraction as well as adldriven dse approaches. Composing and validating orthogonal concerns and heterogeneous models by guang yang b. But in the last couple of decades, mainstream computer systems typically include other processing elements as well.

Composing heterogeneous reactive systems albert benveniste and beno. Energyefficiency prediction of multithreaded workloads on. Frameworks are software architectures that define component ontology and interaction styles. We also evaluate the performance potential of the heterogeneous approach that utilizes cpu and ondie gpu within the same execution context. Though software designers may not precisely articulate the. Another way to reuse software architecture evolution. Little 10, ti omap 5 41 and nvidia tegra 3 9 which integrates a high performance big core with low power little core on a single chip. Hsa also defines a virtual isa for parallel routines or kernels, which is.

The hsa is being developed by the hsa foundation, which includes among many others amd and arm. As quantum computing architectures advance and become more widely available, lowerlevel, system software infrastructures will be needed to enable tighter, coprocessor programming and access models. A software compilation stack consisting of a compiler, linker and loader. Pdf composing heterogeneous software architectures ahmed. We examine the problem of providing formal semantics to the composition of. Phd thesis, university of southern california 1996.

This is a result of the component selection process being. Formerly supported by arpa software protoyping technologies prototech and domainspecifu. Composing heterogeneous software architectures ahmed abdallah. A persistent problem in software engineering is how to put complex software systems together out of smaller subsystems, the problem of software composition.

Composing heterogeneous software architectures semantic. What does heterogeneity mean in software engineering. The software flow used to place and route different benchmarks netlists on the two heterogeneous fpgas is shown in figure 9. Aiming at a sound approach, a proper description of the different architectural building blocks and their properties is. By performing interoperability analysis on the software architecture design of the system and its components, potential incompatibilities can be anticipated early in the design process. The emergence of software architectures and architectural styles has focused attention on a new set of abstractions with which we can create and compose software systems. The blif file is then passed through parser1 which. Design principles for making architectural tradeoffs. To achieve this vision, the hsa foundation is open to contributions from likeminded professionals across the computing industry ihvs, oemsodms, osvs, language and tools vendors, library and middleware vendors, and application vendors who want to help realize the next era in computer system architecture and innovation. Software architecture in the lifecycle software architecture 9 is. The platforms stated aim is to reduce communication latency between cpus, gpus and other compute devices, and make these various devices more compatible from a programmers perspective, relieving the programmer of the. Boehm, models for composing heterogeneous software architectures, university of southern california computer science department technical report usccse96505, 1996.

A constructive approach to compositional architecture design. They also look for a high degree of functional integration and want to perform complex operations with them. New techniques for composing heterogeneous components, and certifying the properties of those compositions. Pdf composing heterogeneous software architectures. The heterogeneity of the hardware units of abcs, the complexity of their api, and the adhoc nature of their. Hierarchical heterogeneous modeling approaches tame the design complexity by hierarchically composing semantically different modeling frameworks. Formalized software architecture description languages provide a significant opportunity for testing because they. Introduction in the following sections, we present a highlevel introduction to the field of software architectures and style composition, and a concise description of the problem which we propose to examine for this dissertation. This tutorial will bring in experts from member companies of the hsa foundation to describe the heterogeneous systems architecture and how it addresses the. Heterogeneous system architecture hsa is a particular processor architecture that combines a central processing unit cpu and a graphics processing unit gpu in order to speed up processes. Heterogeneity in software engineering is usually referring to the composition of a software system. Heterogeneous systems architecture a new compute platform infrastructure presents a nextgeneration hardware platform, and associated software, that allows processors of different types to work efficiently and cooperatively in shared memory from a single source program.

Ahmed abdallah, barry boehm, models for composing heterogeneous software architectures a persistent problem in software engineering is the problem of software composition. A heterogeneous hardware platform that integrates both lcusand tcus, which operate coherently in shared memory. Heterogeneous acceleratorbased clusters abcs are no longer a research curiosity. Using an architectural approach to integrate heterogeneous. Heterogeneous computing, however, poses a number of challenges to software engineering, especially in the architecture and deploy ment. Combined, these two components can be used for validating various data center configurations, evaluation. This dissertation defines a formal technique to test software systems at the architectural level, particularly software systems developed using software architecture description languages adl. Programming heterogeneous hardware components with software. He is a regular contributor to national newspapers, ieeemas section, and has published international papers on vlsi and networks. Sampath is a senior member of ieee and a member of institution of engineers india.

The second part is a virtual, interactive, collaboration and information exchange environment vickiee, for performing such evaluations. Software architectures that adapting themselves to their physical setting. Aug 31, 2012 to achieve this vision, the hsa foundation is open to contributions from likeminded professionals across the computing industry ihvs, oemsodms, osvs, language and tools vendors, library and middleware vendors, and application vendors who want to help realize the next era in computer system architecture and innovation. For example, certain failure propagation scenarios are not possible in certain operating modes, e. We also summarize the steps in our approach to solving the problem. This paper introduces an approach which constructs software architectures by composing architectural building blocks and which also assures architectural properties of these compositions. I follow a certain philosophy when developing system architectures. Functional abstraction driven design space exploration. Here we present xacc, a systemlevel software infrastructure for quantumclassical. Some might consider the use of new multicore cpus and accelerators as troublesome, stating the obvious problem that existing software is not designed for these architectures. The approach is based on the concept of tags marking the events of the signals of a system.

Tsinghua university, beijing, china 2000 a dissertation submitted in partial satisfaction of the requirements for the degree of doctor of philosophy in engineering electrical engineering and computer. Virtual interfaces for exploration of heterogeneous. Heterogeneous system architecture is a crossvendor set of specifications that allow for the integration of central processing units and graphics processors on the same bus, with shared memory and tasks. Scientific computing on heterogeneous architectures. Section 3 outlines our approach and the over all flow of our environment. The heterogeneous system architecture hsa aims to bridge this gap by providing a common system architecture and a basis for designing higherlevel programming models for all devices. Composing heterogeneous software architectures citeseerx.

As the componentbased software development cbsd becomes the prevalent approach to. Garlan, software architecturesperspectives on an emerging discipline, prentice hall, 1996. In this article we demonstrate the potential of software optimized for highlyintegrated system on a chip soc architectures. Composing multiple starpu applications over heterogeneous. Core architecture optimization for heterogeneous chip.

Composing heterogeneous reactive systems acm transactions. Composing multiple parallel codes over heterogeneous architectures storm inria group inria bordeaux sudouest andra hugo, terry cojean, jeanmarie couteyen, abdou guermouche, pierreandre wacrenier, raymond namyst. This file is converted into blif format using a modified version of vst2blif tool. A heterogeneous system is one that is made up of software that could be written in different languages, running on different operating systems, per. A systematic approach to composing heterogeneous componen. An hsa implementation is a system that passes the hsa compliance test suite. Citeseerx document details isaac councill, lee giles, pradeep teregowda. Initialproposals for heterogeneous multicore architectures demonstrated thepower efcienc y of such architectures. Composing heterogeneous software architectures, doctoral. Responsible frameworks for heterogeneous modeling and. We examine the problem of providing formal semantics to the composition of different architectural styles within software systems, i. Heterogeneous system architecture hsa is a crossvendor set of specifications that allow for the integration of central processing units and graphics processors on the same bus, with shared memory and tasks.

Heterogeneous architectures bsccns barcelona supercomputing. How does one detect potential architectural mismatches. The input to the software flow is a vst file structured vhdl. The impressive performance advantages provided by such clusters make them desirable computing facilities for researchers and enterprises alike barker et al. Garlan, software architectures perspectives on an emerging discipline, prentice hall, 1996. Architectural styles are a powerful means for grasping the design of large software systems. The emergence of software architectures and architectural styles has introduced a higher level of abstraction at which we can create and compose soft ware.