![](/assets/images/picto-drapeau-france-3a76576a5d60a512053b4612ab58dae5.png)
6. Concluding remarks
SIMD extensions, particularly those from Intel, have become indispensable for high-performance computing (HPC). Compilers have become much more efficient at taking them into account, and manual programming via "intrinsics" offers additional gains when the compiler is unable to "vectorize".
In Intel's case, we've moved on from "pure" SIMD, where operations are performed on all SIMD register elements, to a SIMD with certain vector characteristics (mask instructions, gather-scatter memory access). While the characteristics of SIMD and vector extensions are similar, there is one fundamental difference: there is one SIMD instruction for each operation on each SIMD register size, which leads to a proliferation in the number of operation codes. In contrast, in the vector approach, specific operations are used to configure the size of vector registers and their contents,...
Exclusive to subscribers. 97% yet to be discovered!
You do not have access to this resource.
Click here to request your free trial access!
Already subscribed? Log in!
![](/assets/images/logo-eti-286623ed91fa802ce039246e516e5852.png)
The Ultimate Scientific and Technical Reference
This article is included in
Software technologies and System architectures
This offer includes:
Knowledge Base
Updated and enriched with articles validated by our scientific committees
Services
A set of exclusive tools to complement the resources
Practical Path
Operational and didactic, to guarantee the acquisition of transversal skills
Doc & Quiz
Interactive articles with quizzes, for constructive reading
Concluding remarks
Bibliography
- (1) - PATERSON (D.), WATERMAN (A.) - SIMD instructions considered harmful, - ACM Sigarch, Computer Architecture To-day, Sep 18, (2017). https://www.sigarch.org/csimd-instructions-considered-harmful/
- ...
Exclusive to subscribers. 97% yet to be discovered!
You do not have access to this resource.
Click here to request your free trial access!
Already subscribed? Log in!
![](/assets/images/logo-eti-286623ed91fa802ce039246e516e5852.png)
The Ultimate Scientific and Technical Reference