SIMD - definition. What is SIMD
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%ما هو (من)٪ 1 - تعريف

CLASS OF PARALLEL COMPUTERS IN FLYNN'S TAXONOMY, WITH MULTIPLE PROCESSING ELEMENTS THAT PERFORM THE SAME OPERATION ON MULTIPLE DATA POINTS SIMULTANEOUSLY
Single Instruction Multiple Data; Simd; Strided load/store instruction; SIMD lanes; WebAssembly SIMD; SIMD
  • Single instruction, multiple data
  •  The SIMD tripling of four 8-bit numbers. The CPU loads 4 numbers at once, multiplies them all in one SIMD-multiplication, and saves them all at once back to RAM. In theory, the speed can be multiplied by 4.

SIMD         
Single Instruction [Additional explanations: stream], Multiple Data [Additional explanations: stream] (Reference: CPU)
SIMD         
Single Instruction Multiple Data         

ويكيبيديا

Single instruction, multiple data

Single instruction, multiple data (SIMD) is a type of parallel processing in Flynn's taxonomy. SIMD can be internal (part of the hardware design) and it can be directly accessible through an instruction set architecture (ISA), but it should not be confused with an ISA. SIMD describes computers with multiple processing elements that perform the same operation on multiple data points simultaneously.

Such machines exploit data level parallelism, but not concurrency: there are simultaneous (parallel) computations, but each unit performs the exact same instruction at any given moment (just with different data). SIMD is particularly applicable to common tasks such as adjusting the contrast in a digital image or adjusting the volume of digital audio. Most modern CPU designs include SIMD instructions to improve the performance of multimedia use. SIMD has three different subcategories in Flynn's 1972 Taxonomy, one of which is SIMT. SIMT should not be confused with software threads or hardware threads, both of which are task time-sharing (time-slicing). SIMT is true simultaneous parallel hardware-level execution.