Intel xeon phi coprocessors hewlett packard enterprise supports, on select hpe proliant servers, computational accelerator modules based on intel xeon phi coprocessors. Aug 18, 2016 the major functionality of the intel xeon phi coprocessor is a chip that does the heavy computation. Its architecture allows use of standard programming languages and application programming interfaces apis such as openmp since it was originally based on an earlier gpu design by intel, it shares application areas with gpus. It is intended for use in supercomputers, servers, and highend workstations. Parallel programming on any general purpose processor including intel xeon phi coprocessor needs careful considerations of various aspect of program organization, algorithm selection and implementation to achieve maximum performance gain. Introduction to intel xeon phi coprocessors part i.
An overview 2 understanding of intel xeon phi coprocessor architecture programming on intel xeon phi coprocessor performance issues on intel xeon phi coprocessor lecture outline following topics will be discussed an overview of prog. Optimizing noncontiguous memory access on intel xeon phi. Department of computer science, university of warwick, coventry, uk parallel computing lab, intel corporation, santa clara, ca email. The xeon phi hardware model from a software perspective. Check out an overview of programming for intel xeon processors and intel xeon phi coprocessors for well an overview. This doubles the effective memory availability as compared to more conventional designs.
Intel xeon phi coprocessor highperformance programming. Take cpu trends to an extreme, optimize for floating point. Parallel programming and optimization with intel xeon phi coprocessors. The intel xeon phi knc processor is essentially a 60core smp chip where each core has a dedicated 512bit wide sse streaming simd extensions vector unit. Intel xeon phi application design and implementation. Performance characterization and optimization for intel xeon. Nov, 2012 available today, these tools enable code optimization and, through using the same programming languages and models shared by intel xeon phi coprocessors and intel xeon processors e5 product family. Second edition of parallel programming and optimization. Intel xeon phi coprocessors are designed to extend the reach of applications that have demonstrated the ability to fully utilize the scaling capabilities of intel xeon processorbased systems and fully exploit available processor vector capabilities or memory bandwidth. Advice for successful parallel programming can be summarized as. Using intel math kernel library on intel xeon phi coprocessors.
Programming intel xeon phi coprocessors part 1, colfax international at oregon state university duration. Reaching one teraflop on intels new 60core coprocessor requires a little knowhow. Existing vectorization techniques in the optimization of gatherscatter overhead have been focusing on extracting data parallelism from interloop and intraloop in a decoupled means. Our first book, parallel programming and optimization with intel xeon phi coprocessors second edition is now available for free. Pdf openmp programming on intel xeon phi coprocessors. Intel xeon phi coprocessors promise to usher in a powerful new tool for discovery and innovation for high performance computing workloads. The following intel xeon phi coprocessor products are available from hpe, for use in hpe proliant sl250s and sl270s servers. Xeon phi has 512 bit vector extensions, but does not have mmx, sse, or avx extensions.
Parallel programming and optimization with intel r xeon phi tm coprocessors handbook on the development and optimization of parallel applications for intel r xeon r processors and intel r xeon phi tm coprocessors second edition andrey vladimirov, ryo asai and vadim karpusenko c colfax international, 202015. Intel xeon phi product family based on intel many integrated core intel mic architecture leading performance for highly parallel workloads common intel xeon programming model seamlessly increases developer productivity launching on 22nm with 50 cores single source compilers and runtimes intel xeon processor. Second edition of parallel programming and optimization with intel. Overview of performance optimization on intel xeon phi. Intel corporation xeon phi coprocessor 3120 series rev 20. In this book, rezaur rahman, an intel leader in the development of the xeon phi coprocessor and the optimization of its applications, presents and details all the features of xeon phi core design that are relevant to the practice of application developers, such as its vector units, hardware multithreading, cache hierarchy, and hostto. Second edition of parallel programming and optimization with.
Nov 20, 2012 the big news at this years event, being held in salt lake city utah, is intels launch of the intel xeon phi coprocessor built on intels many integrated core mic architecture. Part 1 introduction to intel mic programming it4innovations. In my opinion, the authors of parallel programming and optimization with intel xeon phi coprocessors, 2nd edition have done a phenomenal job on all three counts. This doubles the effective memory availability as compared. Scientific computing with intel xeon phi coprocessors. Xeon phi nodes 14 x intel xeon nodes 2 x 8core xeon processor 64 gbs memory 2x intel xeon phi 5110p cyan02. An overview 2 understanding of intel xeonphi coprocessor architecture programming on intel xeonphi coprocessor performance issues on intel xeonphi coprocessor lecture outline following topics will be discussed an overview of prog. Developers of applications for the intel xeon phi coprocessor can tune the performance of their software using the intel vtune amplifier xe performance profiler. Xeon phi than on host processors many more cores, lower frequency, support for higher memory bandwidth, etc. This oneday labs course features handson exercises on the available programming models and best optimization practices for the intel xeon phi coprocessor and intel xeon processor, and on the usage of the intel software development and diagnostic tools. The preproduction intel xeon phi coprocessors based on the knights corner knc chips can provide well over one teraflop of floatingpoint performance. Handbook on the development and optimization of parallel applications for intel xeon processors and intel xeon phi coprocessors. For fortran programmers, use openmp, do concurrent and mpi. Considerations of using intel math kernel library on intel xeon phi coprocessors 16 92520 high level parallelism is critical in maximizing performance blas level 3 and lapack with large problem size get the most benefit.
It is intended for use with the intel vtune amplifier xe performance profiler. Optimizing the mapreduce framework on intel xeon phi. There are some recommendations we can make based on what has been working well for developers. There is still room for improvement in the software. Parallel programming and optimization with intel xeon phi. Parallel programming and optimization with intel xeon phi coprocessors 2nd edition table of contents 1. The intel xeon phi coprocessor offers the convenience of porting an application that already runs on an intel xeon processor, because it supports wellknown parallel programming models. Optimization for performance is never easy on any machine, but.
An interesting notes is that up to 32 memory devices can be used, by using both sides of the motherboard to hold the memory. Intel delivers new architecture with intel xeon phi coprocessor. Xeon phi is not binary compatible with the host processor instruction set is similar to pentium, but not all 64 bit scalar extensions are included. Intel xeon phi processor highperformance programming is useful even before you ever program a system with an intel xeon phi processor.
The coprocessor prototype used for the evaluation has 61 cores clocked at 1090mhz and offers full cache coherency across all cores. Minimize data transfer overhead when offload offset data transfer overhead with enough computation. Mpi, openmp all are portable with the host no dedicated languages such as cuda traditional hosttype optimisations pay off intel refer this as closing the ninja gap you dont have to apply. Available today, these tools enable code optimization and, through using the same programming languages and models shared by intel xeon phi coprocessors and intel xeon processors e5 product family. Intel xeon phi coprocessors are designed to extend the reach of applications that have demonstrated. Intel epsd announces intel xeon phi coprocessor and more at. Performance optimization of openfoam for clusters of intel. Software tools for intel xeon phi coprocessors by vadim.
Exploring simd for molecular dynamics, using intelr xeon tmr processors and intelr xeon phi coprocessors s. Tuned performance on intel xeon phi common optimization techniques dual benefit based on an actual but confidential customer example. The guide for application developers provides developers a comprehensive introduction and indepth look at the intel xeon phi coprocessor architecture and the corresponding parallel data structure tools and algorithms used in the various technical computing applications for which it is suitable. Supercomputing12 is an exciting time for high performance computing. Intel xeon phi processor high performance programming. Intel corporation xeon phi coprocessor 3120 series rev 20 82. Nov 12, 2012 the intel xeon phi coprocessor is the first product based on the intel many integrated core architecture intel mic architecture. Microprocessordependent optimizations in this product are intended for use with intel microprocessors. Abstract this document assists the user in optimizing applications on the intel xeon phi coprocessor. The book is current, provides information that is directly applicable, and can be effectively read by a wide range of programmers. To help ensure that your applications run at maximum efficiency, the authors emphasize key techniques for programming any modern parallel computing system whether based on intel xeon processors, intel xeon phi. For such applications, the intel xeon phi coprocessors offer additional. Intel xeon phi coprocessor high performance programming structured parallel programming 1 6 11 16 21 26 31 36 41 46 51 56 61 66 71 76 81 86 91 96 101 106 111 116 1800 1600 1400 1200 800 600 400 200 0 performance threads intel xeon phi coprocessor peak intel xeon coprocessor peak. It gives an architectural overview and details about which events and metrics to use to analyze performance, along with tuning suggestions.
May 19, 2015 parallel programming and optimization with intel xeon phi coprocessors 2nd edition table of contents 1. An overview of for intel xeon processors and intel xeon. Intel xeon phi coprocessors also signal intels commitment to reaching exascale computing thousandfold increase over petascale by 2018. A family of coprocessors for diverse needs intel xeon phi coprocessors provide up to 61 cores, 244. Intel xeon phi coprocessors intel recently announced the intel r xeon phi tm coprocessor platform 7 that is based on the concepts of the intel architecture and that provides a standard sharedmemory architecure. Created by colfax international and intel, and based on the book, parallel programming and optimization with intel xeon phi coprocessors, this short video series provides an overview of practical parallel programming and optimization with a focus on using the intel many integrated core architecture intel mic architecture.
Xeon phi is a series of x86 manycore processors designed and made by intel. Book parallel programming and optimization with intel xeon phi. Feb 03, 2015 programming intel xeon phi coprocessors part 1, colfax international at oregon state university duration. Performance characterization and optimization for intel. Openmp programming on intel r xeon phi coprocessors. Some of the work focuses on implementing existing methods on coprocessors. To characterize the performance of the intel xeon phi, a system of dual 8core intel xeon e52670 processors is employed as a control platform, and a subset of the parsec benchmark suite is selected as the benchmark applications. Programming, compiling and optimizing for the intel xeon. Parallel programming and optimization with intel xeon.
The intel xeon phi is a manycore accelerator which focuses on the high performance applications. Intel delivers new architecture with intel xeon phi. Parallel programming with tbb, intel cilk plus, openmp, mpi, opencl enables cooperative processing between host and coprocessor use both simultaneously for parallel processing use host for serial code, coprocessor for dataparallel code 4 using the intel xeon phi coprocessor is a simple. Download intel xeon phi application design and implementation considerations pdf 608kb. Its architecture allows use of standard programming languages and application programming interfaces apis such as openmp. Optimizing the mapreduce framework on intel xeon phi coprocessor. Run on intel xeon phi coprocessor natively no offload.
This oneday labs course features handson exercises on the available programming models and best optimization practices for the intel xeon phi coprocessor and intel xeon processor, and on the usage of the intel software development and diagnostic. Intel inspector xe and threadreports in intel vtune amplifier xe are not available for the intel xeon phi coprocessor so use intel inspector xe on your code with offload disabled on host to identify correctness errors e. By patrick bohart patrick runs outbound marketing and communications for intels enterprise platforms and services division epsd. Introduction to intel xeon phi programming models hpcforge. Dec 10, 2012 a second installment, next week, will discuss how programming the phi compares with cuda programming. Page 1 intel xeon phi coprocessor system software developers guide revision. Intel xeon phi coprocessor system software developers guide. Intel does not guarantee the availability, functionality, or effectiveness of any optimization on microprocessors not manufactured by intel. In our work, we utilize advanced features of the xeon phi to achieve high performance. Intel xeon phi coprocessor and intel true scale fabric communication architecture download pdf while the overall compute power in a single node is important, to further scale performance these nodes must be interconnected by a highly efficient network infrastructure.
The same techniques deliver optimal performance for both, so the investment you make in parallelizing your code will deliver benefits across the full range of computing environments. Introduction to intel xeon phi coprocessors part i summer supercomputing institute june 19th 2014. Intel xeon phi coprocessor and intel true scale fabric. An overview of programming for intel xeon processors and intel. Jan 15, 2019 our first book, parallel programming and optimization with intel xeon phi coprocessors second edition is now available for free.
It is an application built to run exclusively on the xeon phi coprocessor. Certain optimizations not specific to intel microarchitecture are reserved for intel microprocessors. Pdf manytask computing on the intel xeon phi coprocessor. Native computing and optimization on the intel xeon phi. Electrical engineering and computer science osu 5,872 views 37. Illustrative example untuned performance on untuned performance on intel xeon phi coprocessor yeah.
896 919 17 1179 1234 1302 809 620 929 1571 860 985 645 1141 22 625 829 1417 1300 124 407 104 1438 627 507 1547 1386 1396 1664 1176 1686 1412 1447 939 1421 1247 1482 1305 1102 848