VLA: variable length array Variable-length array - Wikipedia
and
VLA: allocate memory in stack area
malloc(): allocate memory in heap area
VLA: variable length array Variable-length array - Wikipedia
and
VLA: allocate memory in stack area
malloc(): allocate memory in heap area
From the Web
- Microsoft Word - From BCJR to turbo_v3 (up.pt)
- AWCNS.dvi (southampton.ac.uk)
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(Korean)
3세대 이동통신에 적합한 Log-MAP 터보 디코더 설계 (catholic.ac.kr)
Implementation of Turbo Decoder using SOVA Algorithm - 대한전자공학회 ISOCC - 대한전자공학회 : 논문 - DBpia
[논문]3세대 이동통신에 적합한 슬라이딩 윈도우 로그 맵 터보 디코더 설계 (kisti.re.kr)
[논문]다양한 Design Issue에 대한 터보 디코더의 성능분석 (kisti.re.kr)
Intel SIMD (AVX) transpose intrinsics
- _shuffle_* (mask)
- permute (mask)
- _unpacklo_, _unpackhi_
- _MM_TRANSPOSE4_PS & c++ - Fastest way to transpose 4x4 byte matrix - Stack Overflow
Example
Agner
Software optimization resources. C++ and assembly. Windows, Linux, BSD, Mac OS X (agner.org)
microarchitecture.pdf (agner.org)
Chips and Cheese
AMD’s Zen 4 Part 1: Frontend and Execution Engine – Chips and Cheese
CCD / CCX
CCX: core complex = 4 cores
CCD: core complex die = CCX + CCX, i.e., max 8 cores
refer to: AMD CCD and CCX in Ryzen Processors Explained | Hardware Times
SIMD
lec17_x86SIMD.pdf (ntu.edu.tw)
From the ChatGPT
In C++, rint
is a function from the cmath
library that returns the nearest integer value to a given floating-point number, using rounding towards the nearest even number in case of tie.
On the other hand, round
is a function that also rounds a floating-point number to the nearest integer value, but it is part of the cmath
library only starting from C++11. In earlier versions of C++, round
is not available.
So, if you are using C++11 or later, you can use round
instead of rint
for rounding to the nearest integer value.
Please refer to banker's round
Sample Code: https://onlinegdb.com/q36smlQMz