memory-alignment

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Alignment of Heap Arrays in C and C++ to Ease Compiler (GCC) Vectorization

I\'m currently cooking up a wrapper container template class for std::vector that automatically creates a multi-resolution pyramid of the elements in its std::vector.[详细]

2023-03-18 05:11 分类：问答
Prefetching aligned memory

I have some threaded C code that req开发者_StackOverflowuires 64 byte alignment of the processed data structure. How will this alignment interact with prefetch instructions like the gcc __builtin_pref[详细]

2023-03-15 02:09 分类：问答
Is memory aligned access faster?

Suppose that my machine word is 32 bits long, and I have to sort 8-character strings. I\'ve read that if you pack the characters into words, the comparisons will be faster since you use aligned memory[详细]

2023-03-13 01:55 分类：问答
OpenCV's cv::Mat & CvMat row alignment

could someone pls explain to me how the row alignment of OpenCV\'s CvMat (or its C++ version cv::Mat) works? For instance, let\'s assume I have a matrix[详细]

2023-03-06 03:00 分类：问答
Mixing memory-aligned and unaligned code

I recently compiled GotoBLAS2 (MacOSX 10.6) and linked it to my code, leading to all kind of wrong results. I ran everything through valgrind noticing some illegal reads from the GotoBLAS. When lookin[详细]

2023-03-02 10:22 分类：问答
How to align pointers when dealing with multiple-inheritance?

Say we have a concrete class A, and an abstract class B. Consider a concrete C, that inherits from both A and B, and implements B:[详细]

2023-02-25 12:35 分类：问答
unaligned memory access difference on Solaris and Linux

I wrote a program on linux(x86,32-bit),everything works fine开发者_如何学Go.But when I try to compile and run the same source code on Solaris (SPARC,64-bit),I got a bus error(SIGBUS).The message from[详细]

2023-02-23 07:21 分类：问答
Why alignment is 16 bytes on 64 bit architecture? [duplicate]

This question already has an answer here: Why does the x86-64 / AMD64 System V ABI mandate a 16 byte stack alignment?[详细]

2023-02-22 02:16 分类：问答
Memory alignment in C-structs

I\'m working on a 32-bit machine, so I suppose that the memory alignment should be 4 bytes. Say I have this struct:[详细]

2023-02-20 00:32 分类：问答
Java memory allocation alignment

I know this is a weird question to ask in Java, but is there a way to let Java dynamic memory allocation be aligned with some alignment constraints?[详细]

2023-02-16 07:37 分类：问答