Powerefficient parallel architecture based on ibm powerxcell 8i dirk pleiter desy zeuthen site 17 september 2010, enahpc, hamburg. Subsequently, the cray xt5 jaguar became the top system in 2009. In this paper we present the design and implementation of the linpack benchmark for the ibm bladecenter qs22, which incorporates two ibm powerxcell 8i 1 processors. Ibm roadrunner used the powerxcell 8i version of the cell processor, manufactured using 65 nm technology and enhanced spus that can handle double precision calculations in the 128bit registers, reaching double precision 102 gflops per chip. Our primary aim is to aid application designers in better mapping their software to the most suitable architecture, with an additional goal of influencing future computing. In may 2008, an opteron and powerxcell 8i based supercomputer, the ibm roadrunner system, became the worlds first system to achieve one petaflops, and was the fastest computer in the world until third quarter 2009. Air force still using ps3 as 33rd largest computer toms. Cell microprocessor wikimili, the best wikipedia reader. The nodes are interconnected by a custom 3dimensional torus network implemented on an fpga. Understanding the design tradeoffs among current multicore. Stencil computation optimization and autotuning on state. Qpace is a novel massively parallel architecture optimized for lattice qcd simulations. The hybrid design consisted of dualcore opteron server processors manufactured by amd using the standard amd64 architecture. Architectural background and testbed in this section we describe the architecture of the powerxcell 8i, the version of the cell broadband engine that provides the bulk of the performance of.
The powerxcell 8i is a new implementation of the cell broadband engine 2 architecture and contains a set of specialpurpose processing cores known as synergistic processing elements spes. The ppe core is dual threaded and manifests in software as two independent. To realize a custom network a field programmable gate array fpga and six physical transceivers phy have been added. Situation overview hpcs strong market growth the hpc market has shown rapid growth in the five years since 2002, especially when compared with the background rate of it spending generally. Architectural design software from cad pro has helped thousands of architects and designers streamline their workflow while producing professional architectural designs for clients and colleagues. The commodity part of the node consists of a powerxcell 8i processor and 4 gbytes of main memory.
Cell is a microprocessor architecture jointly developed by sony computer entertainment, toshiba, and ibm, an alliance known as sti. Ios press programming the linpack benchmark for the ibm. Architectural design software presentations architectural. Accelerating the implicit integration of stiff chemical. The qs22 based on the powerxcell 8i processor was used for the ibm. Ibm powerxcell8i processor said to be last of its kind, but. Download scientific diagram powerxcell 8i architecture.
An ibm powerxcell 8i, one of the most powerful processors available at project start. A view at the hpc crossroads for scientific computing ersa keynote for reconfigurable supercomputing panel a. In this paper we present the design and implementation of the linpack benchmark for the ibm bladecenter qs22. Stencil computation autotuning on modern multicore. Nov 23, 2009 according to heise online, ibm vice president of deep computing david turek has confirmed that the companys current powerxcell 8i processor will be the last of its kind, and that there will not. The heart of the qs22 is the multicore ibm powerxcell 8i processor, a new generation processor based on the cell broadband engine cellb. Architectures introducing the arm architecture arm developer. The architecture exposes a common instruction set and workflow for software developers, also referred to as the programmers model. Vectorized opencl implementation of numerical integration for. Michael feldman over at hpcwire has dug up an article at heise online that claims that ibms powerxcell processor is at the end of the road. The suite includes all of the tools necessary for complete project management. Vlc system architecture, showing distribution of data and.
This put qpace in the number one spot on the green500 list. Cell broadband engine programming handbook including the powerxcell 8i processor version 1. According to heise, ibm vp of deep computing david turek confirmed that there will be no successor to the powerxcell 8i, the high performance cell variant ibm developed for the roadrunner supercomputer and its qs22 blades. The new powerxcell 8i processor builds on the cell broadband engine architecture and combines a generalpurpose power architecture core of modest performance with eight enhanced synergistic processing elements optimized for extreme double precision and single precision computational performance powerxcell 8i processor 65 nm 9 cores, 10 threads. Cell is a multicore microprocessor microarchitecture that combines a general purpose. Stitt nsf center for highperformance reconfigurable computing chrec ece department, university of florida, gainesville, fl 326116200. International conference on computational science, iccs 2011. A standalone cell computer on a pci express pcie card. Overall, our autotuning optimization methodology results in the fastest multicore stencil performance to date.
Qpace a qcd parallel computer based on cell processors. Jul 30, 2010 qpace is a novel massively parallel architecture optimized for lattice qcd simulations. Kerbyson,1 scott pakin1 1performance and architecture laboratory pal, computer science for hpc ccs1. Mar 19, 2020 in may 2008, an opteron and powerxcell 8i based supercomputer, the ibm roadrunner system, became the worlds first system to achieve one petaflops, and was the fastest computer in the world until third quarter 2009. Cell broadband engine powerxcell 8i processor has a standard core ppe working as a manager and eight cores spes, which are optimized for fast parallel processing of pixel and dp float data. In this paper, we empirically evaluate fundamental design tradeoffs among the most recent multicore processors and accelerator technologies. In qpace, however, each node comprises a commodity processor. Qpace architecture the main building block of the qpace architecture is the node card, see fig. Ibm officially announces powerxcell 8i dpenhanced 65nm cell. So were looking forward to working with the next generation of architecture. Sections iv and v highlight novog research activities that. Our work explores multicore stencil nearestneighbor computations a class of algorithms at the heart of many structured grid codes, including pde solvers.
I am a business and engineering savvy leader who will make this planet a distinctly better place through artificial intelligence ai. May 22, 2009 understanding the most efficient design and utilization of emerging multicore systems is one of the most challenging questions faced by the mainstream and scientific computing industries in several decades. Arcon evo architectural design software has been specially developed to provide architects, developers and building professionals with a onestop solution to their cad requirements product details arcon evo is the ideal solution for all building design needs. Ibm powerxcell8i processor said to be last of its kind. With the mvxcell 8i pcie accelerator board, matrix vision makes the power of ibm powerxcell 8i processor for standard pcs available. Title page cell broadband engine programming handbook. A device driver that communicates the application level software with the hardware.
Abstractwe present an interarchitectural comparison of single and doubleprecision direct nbody implementations on modern multicore platforms, including those based on the intel nehalem and amd barcelona systems, the sonytoshibaibm powerxcell8i processor, and nvidia tesla c870 and c1060 gpu systems. Understanding the most efficient design and utilization of emerging multicore systems is one of the most challenging questions faced by the mainstream and. Accelerating the implicit integration of stiff chemical systems with. This can affect code comprehensibility and reusability of the software. Programming the linpack benchmark for the ibm powerxcell.
It contains 12,240 ibm powerxcell 8i processors and 12,240 amd opteron cores in. Ibms powerxcelltm 8i product line, with its single instruction, multiple data simd isa and memory flow controller mfc, is to bring dataparallel computing back to hpc and deliver higher sustained performance and power efficiency to hpc workloads with a processing engine supported by volume economics. In the roadrunner system, 97% of the computational capability resides in the powerxcell 8i. List rank system vendor total cores rmax tflops rpeak tflops power kw 112012. Finally, we present several key insights into the architectural tradeoffs of emerging multicore designs and their implications on scienti. Stencil computation optimization and autotuning on stateof. A view at the hpc crossroads for scientific computing. We then briefly summarize the overall architecture of our testbed.
Tools and software for architecture visualization chameleon. The spes can be used as computational accelerators to augment the main powerpc processor. Offering extraordinary double precision floating point processing power, the qs22. Chief architect advanced computing at huawei technologies. Powerxcell 8i intel xeon x3230 intel xeon w5580 nvidia tesla c870 nvidia tesla c1060.
The roadrunner used red hat enterprise linux along with fedora as its operating systems and was managed with xcat distributed computing software. From an architectural point of view qpace may be considered to be a cluster of not particularly powerful powerpc cores with an attached accelerator. Cell is a multicore microprocessor microarchitecture that combines a generalpurpose powerpc core of modest performance with streamlined coprocessing elements which greatly accelerate multimedia and vector processing applications, as well as many other forms of dedicated computation. Application profiling on cellbased clusters hikmet dursun,1,2 kevin j. Powerxcell 8i processor the powerxcell 8i processor is a more recent implementation of the cell broadband engine architecture 3. The powerxcell 8i processor is an enhanced version of the cell processor which has been developed by sony, toshiba, and ibm, with sonyas playstation 3 as the first major commercial application. The cell broadband engine architecture integrates an ibm powerpc processor.
The basic features of the software developed for the system are 1. Citeseerx document details isaac councill, lee giles, pradeep teregowda. Case studies of top supercomputer systems brainkart. Onthefly computing on manycore processors in nuclear. Key components of the blade are the cell broadband enginetm, xdr memory, ddr2 dimm, and in this version two xilinx virtex4tm fpgas. Each qs22 has two powerxcell 8i cpus, running at 3. Illustration 1 shows a picture of the chameleon cell blade prototype. Ibm officially announces powerxcell 8i dpenhanced 65nm. It contains 12,240 ibm powerxcell 8i processors and 12,240 amd opteron cores in 3,060 compute nodes.
Each node comprises an ibm powerxcell 8i processor. Ios press programming the linpack benchmark for the ibm powerxcell 8i processor michael kistler, john gunnels, daniel brokenshire and brad benton ibm corporation emails. Entering the petaflop era proceedings of the 2008 acmieee. Latest news ibm shifts cell to 65nm server chip aims at supercomputing for the masses rick merritt ee times 052008 12. Petascale computing with accelerators researchgate. In 2009, the qpace qcd parallel computing on the cell architecture, based on the ibm powerxcell 8i processor. In this paper we present a detailed architectural description of roadrunner and a detailed performance analysis of the system. Onthefly computing on manycore processors in nuclear ap plications 665 vol.
Roadrunner is the first supercomputer to run linpack at a sustained speed in excess of 1 pflops. No future development for ibms powerxcell insidehpc. The architecture and performance of roadrunner abstract. Roadrunner bladecenter qs22ls21 cluster, powerxcell 8i. According to heise online, ibm vice president of deep computing david turek has confirmed that the companys current powerxcell 8i processor. Roadrunner bladecenter qs22ls21 cluster, powerxcell 8i 3. The ibm powerxcell 8i also referred as the cell extended doubleprecision, celledp is the latest implementation of the cell be featuring 108.
Providing server interface for the administrator of the system. Pc processor powers accelerator board vision systems design. White paper with its new powerxcell 8i product line, ibm. The architecture was systematically optimized with respect to power consumption. Nov 21, 2008 it contains 12,240 ibm powerxcell 8i processors and 12,240 amd opteron cores in 3,060 compute nodes. Again, the experience gathered with powerxcell can be used in designing code for other types of processors, sharing architectural details with powerxcell, such as e. Attached to each opteron core is a powerxcell 8i processor manufactured by ibm using power architecture and cell technology.
The powerxcell 8i is a new implementation of the cell broadband engine2 architecture and contains a set of specialpurpose processing cores known as synergistic processing elements spes. Cell is a multicore microprocessor microarchitecture that combines a generalpurpose power architecture core of modest performance with streamlined coprocessing elements which greatly accelerate multimedia and vector processing applications, as well as many other forms of dedicated computation. A good architectural design and presentation starts with good architectural design software presentations. Large shared register files and software controlled branching to allow deeper pipelines interface between user and networked world image rich information, virtual reality, shared reality flexibility and security multios support, including rtos nonrtos combine realtime and nonreal time worlds.
To optimize the datatransfer time, we implemented the software pipelining among the tasks. As a supercomputer, the roadrunner was considered an opteron cluster with cell accelerators, as each node consists of a cell attached to an opteron core and the opterons to each other. Ibm announced a revised variant of the cell called the ibm powerxcell 8i. Architectural background and testbed in this section we describe the architecture of the cell broadband engine and powerxcell 8i that provides the bulk of the performance of our target cluster and the focus of our profiler study. Today, as the director of sales enabling for intels. It was a hybrid design with 12,960 ibm powerxcell 8i and 6,480 amd opteron dualcore processors in specially designed blade servers connected by infiniband. In 2001, ibm joined with sony computer entertainment inc. Powerefficient parallel architecture based on ibm powerxcell 8i. The worlds three most energy efficient supercomputers, as represented by the green500 list, are similarly based on the. The ibm bladecenter qs22 is based on the innovative multicore ibm powerxcell 8i processor, a new generation processor based on the cell broadband engine cellb. The powerxcell 8i is the sec ond implementation of the cell broadband engine architecture 3, which unfortunately has been discontinued. Heiko joerg schick chief architect hisilicon turing department.
Moreover, opencl allows one to obtain a high performance code, thanks to the support of explicit memory hierarchy management and vector operations. Architecture 12,960 ibm powerxcell 8i cpus, 6,480 amd opteron dualcore processors, infiniband, linux memory103. Chameleon powers buildervision is the first suite of interactive tools for the homebuilding industry. More than 400 engineers came together to design the cell broadband engine multicore technology that would provide powerefficient and costeffective highperformance processing for a wide range of applications. The lacss provide medium to longterm computer science research relevant to the goals of the advanced simulation and computing asc program.
1061 238 231 904 907 758 1134 381 1342 1506 1175 604 884 1289 845 355 704 1255 1115 426 733 1224 1112 233 161 758 969 112 147 701 863 1089 305 908 1050 1382 402 833 881 722 582 37 590