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Z boson has asked 105 questions and find answers to 278 problems.

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Z boson questions

Reduction with OpenMP: linear merging or log(number of threads) merging
accuracy of sqrt of integers
linking OpenMP statically with GCC
Code alignment in one object file is affecting the performance of a function in another object file
Static linkage with glibc without calling main
Memcpy takes the same time as memset
intrinsic for the mulx instruction
Compute the doubleword product (signed) of two words given the lower word product
NUMA systems, virtual pages, and false sharing
The effect of code alignment in timing main loops in assembly

Z boson answers

What is the minimum version of OS X for use with AVX/AVX2?
How to sum all 32-bit or 64-bit sub-registers in an SSE XMM, or AVX YMM, and ZMM register?
why do people declare iterated values before loop for openmp?
Use openMP only when an argument is passed to the program
SSE _mm_load_ps causing segmentation faults
How to efficiently add two vectors in C++
Can I enable vectorization only for one part of the code?
Is there a more efficient way to broadcast 4 contiguous doubles into 4 YMM registers?
performance of SSE and AVX when both Memory-band width limited
Understanding of vectorization with SSE instructions