Intel® Advanced Vector Extensions

Links to instruction documentation

Executed instruction not valid for specified chip (PENTIUM4)

I encounter the following error message with the latest version (7.39-win) of Intel SDE, when I attempt the "-p4" switch. What is the preferred way of using the "-p4" switch?

 

TID 0 SDE-ERROR: Executed instruction not valid for specified chip (PENTIUM4): 0x7ffbaa344fa2: syscall
Image: C:\WINDOWS\SYSTEM32\ntdll.dll+0xa4fa2
Function: ZwSetEvent
Instruction bytes are: 0f 05

 

Putting Your Data and Code in Order: Data and layout - Part 2

In this pair of articles on performance and memory covers basic concepts to provide guidance to developers seeking to improve software performance. This paper expands on concepts discussed in Part 1, to consider parallelism, both vectorization (single instruction multiple data SIMD) as well as shared memory parallelism (threading), and distributed memory computing.
  • Desarrolladores
  • Estudiantes
  • Servidor
  • Windows*
  • C/C++
  • Fortran
  • Intermedio
  • Intel® Advisor
  • Intel® Cilk™ Plus
  • Módulos Intel® de subprocesamiento
  • Intel® Advanced Vector Extensions
  • OpenMP*
  • Modernización de código
  • Arquitectura Intel® para muchos núcleos integrados
  • Optimización
  • Computación en paralelo
  • Subprocesos
  • Vectorización
  • Highest valid sub-leaf index of CPUID(EAX = 0DH)

     

    I refer to the document of ISA extensions at <https://software.intel.com/sites/default/files/managed/07/b7/319433-023..... (page 2-18)

     

     

    The highest valid sub-leaf index, n, is

    (POPCNT(CPUID.(EAX=0D, ECX=0):EAX) + POPCNT(CPUID.(EAX=0D, ECX=0):EDX) - 1)

     

     

    How to obtain this formula of the highest valid sub-leaf index of CPUID.0DH?

    Putting Your Data and Code in Order: Optimization and Memory – Part 1

    This series of two articles discusses how data and memory layout affect performance and suggests specific steps to improve software performance. The basic steps shown in these two articles can yield significant performance gains. These two articles are designed at an intermediate level. It is assumed the reader desires to optimize software performance using common C, C++ and Fortran* programming options.
  • Desarrolladores
  • Profesores
  • Estudiantes
  • C/C++
  • Principiante
  • Intermedio
  • Intel® Math Kernel Library
  • MPI
  • Intel® Advanced Vector Extensions
  • Modernización de código
  • Computación en paralelo
  • Vectorización
  • Explore Intel® AVX-512 Code Paths with Intel® Advisor XE while not Having Compatible Hardware

    Many factors that can make programs difficult for automatic vectorization. We will examine some of the factors that can make vectorizing code problematic without providing the compiler with some additional hints. Vectorizing loops is critical for increasing your applications’ performance, and Intel Advisor XE is the tool that can guide you through the process of vectorization.

    Intel Advisor XE 2016 is a dynamic analysis tool that now contains a Vectorization Advisor feature. Using Vectorization Advisor you can survey all the loops in your application and see:

    Software Occlusion Culling

    This article details an algorithm and associated sample code for software occlusion culling which is available for download. The technique divides scene objects into occluders and occludees and culls occludees based on a depth comparison with the occluders that are software rasterized to the depth buffer. The sample code uses frustum culling and is optimized with Streaming SIMD Extensions (SSE) instruction set and multi-threading to achieve up to 8X performance speedup compared to a non-culled display of the sample scene.
  • Desarrolladores
  • Microsoft Windows* 10
  • Microsoft Windows* 8.x
  • Desarrollo de juegos
  • Windows*
  • C/C++
  • Intermedio
  • Módulos Intel® de subprocesamiento
  • GameCodeSample
  • GameDev
  • simd
  • AVX2
  • Software Occlusion Culling
  • Intel® Advanced Vector Extensions
  • Intel® Streaming SIMD Extensions
  • Desarrollo de juegos
  • Gráficos
  • Suscribirse a Intel® Advanced Vector Extensions