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Questions tagged simd

18 questions

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9
votes
1
answers

SSE reduction of float vector

c++ sum sse simd reduction
asked 2013-07-20T10:16:49.817
8
votes
1
answers

How to store lower or higher values from AVX/AVX2(YMM) register to memory like the SSE movlps/movhps does?

x86 sse simd avx avx2
asked 2013-01-30T08:23:14.873
34
votes
4
answers

print a __m128i variable

c assembly sse simd intrinsics
asked 2012-11-06T18:34:33.680
22
votes
5
answers

SIMD prefix sum on Intel cpu

c++ sse simd prefix-sum
asked 2012-05-14T16:44:36.573
33
votes
3
answers

Intel AVX: 256-bits version of dot product for double precision floating point variables

c++ performance simd avx
asked 2012-05-04T18:21:57.153
10
votes
2
answers

Check XMM register for all zeroes

c++ sse simd intrinsics
asked 2012-04-16T14:08:15.900
18
votes
3
answers

How to dump all the XMM registers in gdb?

x86 gdb simd sse cpu-registers
asked 2012-03-30T19:52:43.650
23
votes
3
answers

Fastest way to do horizontal vector sum with AVX instructions

x86 sse simd avx vector-processing
asked 2012-03-19T18:11:59.497
14
votes
9
answers

How to quickly count bits into separate bins in a series of ints on Sandy Bridge?

c++ assembly x86 simd avx
asked 2011-10-17T12:51:10.427
13
votes
8
answers

Speed up float 5x5 matrix * vector multiplication with SSE

c++ vectorization matrix-multiplication sse simd
asked 2011-07-07T22:04:27.080
17
votes
5
answers

Does rewriting memcpy/memcmp/... with SIMD instructions make sense?

performance sse simd
asked 2011-03-16T05:21:57.310
18
votes
3
answers

Why does does SSE set (_mm_set_ps) reverse the order of arguments

c++ c simd sse intrinsics
asked 2011-03-08T20:30:15.977
19
votes
1
answers

Do I get a performance penalty when mixing SSE integer/float SIMD instructions

c assembly sse simd intrinsics
asked 2011-02-14T19:28:05.790
52
votes
5
answers

ARM Cortex-A8: Whats the difference between VFP and NEON

arm simd neon cortex-a8
asked 2010-11-04T13:16:56.297
15
votes
3
answers

How to use the multiply and accumulate intrinsics in ARM Cortex-a8?

c arm simd intrinsics neon
asked 2010-07-13T18:56:59.603
10
votes
8
answers

SIMD programming languages

programming-languages sse simd ispc
asked 2009-09-13T12:50:45.267
56
votes
5
answers

SSE SSE2 and SSE3 for GNU C++

c++ optimization simd sse sse2
asked 2009-03-19T07:32:22.857
12
votes
3
answers

How to get GCC to use more than two SIMD registers when using intrinsics?

gcc assembly x86 sse simd
asked 2008-09-23T22:49:22.830