自动向量化：近期进展与展望

doi:10.11959/j.issn.1000-436x.2022051

Abstract

Abstract:

The technology of SIMD is developing rapidly, and quite a few auto-vectorization methods have been proposed.Auto-vectorization can automatically translate scalar programs into vector programs based on SIMD extension, decrease workload of the programmers in coding vector programs, and effectively improve performance of programs.Based on that, the research achievements in the field of automatic vectorization in recent 10 years were analyzed and summarized.The key problems and major breakthroughs in automatic vectorization were classified from four aspects:semantic-maintaining analysis and transformation, vectorization grouping analysis and transformation, processor-oriented analysis and transformation, and performance evaluation analysis.Furtherly, the development trends and research directions of the four aspects were prospected.

Key words: auto-vectorization, SIMD extension, compiling technology, data level parallelism, performance optimization

CLC Number:

TP312

Jingge FENG, Yeping HE, Qiuming TAO. Auto-vectorization: recent development and prospect[J]. Journal on Communications, 2022, 43(3): 180-195.

Figures/Tables 13

References 101

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厂商	处理器	指令集	长度/bit
		MMX	64
	Pentium
		SSE	128
		AVX128	128
Intel
		AVX256	256
	Core
		IMCI	512
		AVX512	512
	P6	VMX	128
IBM
	BG/L	BG/L	256
DEC	Alpha	MVI	64
SGI	MIPS V	MDMX	64
Sun	SPARC v9	VIS	64
HP	PA-RISC	MAX2-2	64
Motorola	G4	AltiVec	128
	Athlon	3Dnow!	128
AMD	Jaguar	F16C	128
	Bulldozer	FMA	256
Ingenic	XBurst	MXU	128
Sony	Cell	AltiVec	128
CAS	Godson	Godson	256
NRCPC	SW26010	SW26010	256
NUDT	Matrix	Matrix	1024
	ARMv6	NEON	128
ARM	PPC970	VMX	128
	ARMv8	SVE	2 048

序号时间	指令集	处理器	长度/bit	特征
1 2015年	AVX512	Xeon Phi	512	Masked blend、Perm、Bitwise、Conflict detection、Gather、Scatter and Prefetchinstruction
2 2013年	AVX256	Haswell	256	Mul and add instruction、Gather instruction、Broadcast instruction Masked load andstore instruction
3 2008年	AVX128	Sandy Bridge	128	Data reorganization and Unaligned memory instruction
4 2006年	SSE4	Penryn/Nehalem	128	Insert、Extract、Search and String processing instruction
5 2004年	SSE3	Pentium4	128	Unaligned memory instruction，Horizontal add instruction
6 2001年	SSE2	Pentium4	128	Type conversion instruction
7 1999年	SSE	Pentium3	128	128 length of Basic logical operation，shift and compare operation
8 1996年	MMX	Pentium	64	Basic logical operation，shift and compare operation

Auto-vectorization: recent development and prospect

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