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Resultados da pesquisa: 447

  1. AVX horizontal sum and store

    https://software.intel.com/pt-br/forums/intel-isa-extensions/topic/346695

    The next thing is how to store only, one value of an AVX register. In SSE I just used _mm_store_sd. I could do a cast from __m256d to __m128d and use SSE ...

  2. AVX - Vector shifts

    https://software.intel.com/pt-br/forums/intel-isa-extensions/topic/343530

    I'm comparing two programmes, one is written using SSE and the other one AVX. My aim is to show that the avx version is running 2 times faster but I'm loosing ...

  3. AVX-512 is a big step forward - but repeating past mistakes!

    https://software.intel.com/pt-br/comment/1808767

    AVX512 is arguably the biggest step yet in the evolution of the x86 instruction set in terms of new instructions, new registers and new features. The first try was ...

  4. SSE vs AVX optimized code generation

    https://software.intel.com/pt-br/forums/intel-c-compiler/topic/326004

    I have both SSE and AVX versions working well for single-element processing - however, when I extended the code to support higher order parallelism, the ...

  5. Disabling AVX

    https://software.intel.com/pt-br/forums/intel-isa-extensions/topic/508413

    Hi all, Is there a way (under Windows 7) to disable the support of AVX. I wan't to make sure that on a pre-SB machine I don't get "Illegal Instruction exception".

  6. How to work with AVX on windows

    https://software.intel.com/pt-br/forums/intel-isa-extensions/topic/542384

    Hi, I am interested in AVX instructions set using in my application for speed up. But i am new to AVX. How can i know whether my system processor is able to ...

  7. AVX preprocessor macro in bvh.cpp, bvh_statistics.cpp, primitive.cpp

    https://software.intel.com/pt-br/node/660278

    8 jul. 2016 ... We noticed that while we are trying to move to embree 2.10.0 there are linkage errors when we link our codebase to an avx build embree:.

  8. Performance Issues on AVX Instructions

    https://software.intel.com/pt-br/forums/intel-isa-extensions/topic/280799

    It seems that the broadcast sets the saved flag in the avx status reg and the AVX instructions in the loop never clear this flag and all following AVX instructions ...

  9. AVX Performance Reduction Vs 128 SIMD

    https://software.intel.com/pt-br/forums/intel-isa-extensions/topic/282731

    Dear All, Legacy 128 Bit SIMD code replaced with AVX code, expected a performance gain or atleast status quo. But the performance has fallen to 10% of the ...

  10. AVX vs. SSE4.2 performance on Sandybridge

    https://software.intel.com/pt-br/forums/intel-visual-fortran-compiler-for-windows/topic/373604

    28 fev. 2013 ... I was expecting for the single precision an 8x peak performance improvement with AVX and a 4x improvement with SSE4.2 by vectorization.

  11. AVX: _mm_alignr_epi8 equivalent for YMM registers ?

    https://software.intel.com/pt-br/forums/intel-isa-extensions/topic/283576

    Hello,I am looking for an equivalent to the most useful intrinsic_mm_alignr_epi8 with AVX registers (I guess its equivalent to PALIGNR or VPALIGNR for the one ...

  12. Auto vectorisation with AVX not as expected

    https://software.intel.com/pt-br/forums/intel-c-compiler/topic/279500

    I have converted one of my numerical processed to use AVX on an 15-2500k and achieve good performance improvements in this way as shown in the attached ...

  13. Intel® AVX Special German and United Kingdom Discussion 2010 ...

    https://software.intel.com/pt-br/forums/intel-avx-special-german-and-united-kingdom-discussion-2010

    We will be inviting the top forum participants to to an event in early May 2011 to talk with Intel® Software Black Belts and Intel engineers about Intel® AVX and ...

  14. unaligned loads avx-128 vs. -256

    https://software.intel.com/pt-br/forums/intel-isa-extensions/topic/498711

    I just saw that my cases using _mm256_loadu_ps show better performance than _mm_loadu_ps on corei7-4, where the latter was faster on earlier AVX ...

  15. Avx vs avx2

    https://software.intel.com/pt-br/node/624461

    13 abr. 2016 ... Hoping to minimize use of multiple isa target options, I made some comparison of avx vs. Avx2 performance on haswell to characterize where ...

  16. Converting SSE packed integer handling to AVX

    https://software.intel.com/pt-br/forums/intel-isa-extensions/topic/282416

    Used SSE to work with for example, 6-bit packed integers.SSErequired a lot of heavy lifting thru masking and shifting and storing of results into temporary ...

  17. question on avx instruction encoding

    https://software.intel.com/pt-br/forums/intel-isa-extensions/topic/292273

    XDIS 0: AVX AVX C4C17458C5 vaddps ymm0, ymm1, ymm13 XDIS 5: AVX AVX ... In AVX, the other places that registers can be specified (MODRM.REG ...

  18. intel xe composer compiler with AVX code

    https://software.intel.com/pt-br/forums/intel-isa-extensions/topic/607403

    25 jan. 2016 ... When I compiled a sample of matrix multiplication with intel xe composer 2013 sp1 compiler using inline assembly avx code with visual c 2013 ...

  19. how do I know MKL FFT being called used AVX-512

    https://software.intel.com/pt-br/forums/intel-math-kernel-library/topic/542369

    Hi I am trying to look at MKL FFT performance by calling 5 lib functions as below, I configured the optimization and enabled AVX-512 etc in the project properties ...

  20. How to compile avx intrinsics in linux device driver?

    https://software.intel.com/pt-br/forums/intel-isa-extensions/topic/543853

    24 mar. 2015 ... Ubuntu on core i7 How to compile avx intrinsics in linux device driver? ... assembler in a Linux device driver than to use the AVX intrinsics.

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