simd

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Is SIMD Worth It? Is there a better option?

I have some code that runs fairly well, but I would like to make it run better.The major problem I have with it is that it needs to have a nested for loop.The outer one is for iterations (which must h[详细]

2023-01-07 15:05 分类：问答
Haskell math performance on multiply-add operation

I\'m writing a game in Haskell, and my current pass at the UI involves a lot of procedural generation of geometry. I am currently focused on identifying performance of one particular operation (C-ish[详细]

2023-01-04 21:36 分类：问答
SIMD/SSE newbie: simple image filtering

I\'m very new to SIMD/SSE and I\'m trying to do some simple image filtering (blurring). The code below filters each pixel of a 8-bit gray bitmap with a simple [1 2 1] weighting in horizontal direction[详细]

2023-01-04 18:18 分类：问答
How do I load all 1's into a mmx register? Why doesn't this work?

couldn\'t seem to find anything besides opinion questions on 64/32 bit stuff when I searched. __asm__ {[详细]

2023-01-04 11:35 分类：问答
Fast 24-bit array -> 32-bit array conversion?

Quick Summary: I have an array of 24-bit values.Any suggestion on how to quickly expand the individual 24-bit array elements into 32-bit elements?[详细]

2023-01-02 19:46 分类：问答
C++ Adding 2 arrays together quickly

Given the arr开发者_StackOverfloways: int canvas[10][10]; int addon[10][10]; Where all the values range from 0 - 100, what is the fastest way in C++ to add those two arrays so each cell in canvas e[详细]

2023-01-01 18:33 分类：问答
Benefit of using multiple SIMD instruction sets simultaneously

I\'m writing a highly parallel application that\'s multithreaded. I\'ve already got an SSE accelerated thr开发者_高级运维ead class written. If I were to write an MMX accelerated thread class, then run[详细]

2022-12-30 15:19 分类：问答
implement SIMD in C++

I\'m working on a bit of code and I\'m trying to optimize it as much as possible, basically get it running under a certain time limit.[详细]

2022-12-29 03:50 分类：问答
How do I enable the SSE3/SSE4.1 instruction set in Visual Studio 2008?

I tried to follow: Project > Properties > Configuration Properties > C/C++ > Code Generation > Enable Enhanced Instruction Set[详细]

2022-12-29 01:59 分类：问答
Intrinsics Vs inline ASM for SSE coding in VC++ 2K8

I\'ve done some inline ASM coding for SSE before and it was not too hard even for someone who doesn\'t know ASM. But I note MS also provide intrinsics wrapping many such special instructions.[详细]

2022-12-25 15:22 分类：问答