Concept
General-purpose processing on graphics processing units
Concepts associés (35)
Larrabee (informatique)
thumb|Schéma de l'architecture GPU Larrabee. Le projet Larrabee d'Intel Corporation fut la réaction à l'importance croissante des processeurs graphiques (GPU) dans le domaine du calcul générique. Cette carte fille a été annoncée en 2008, et fut quasiment abandonnée en et définitivement pour le grand public en . Auparavant, les GPU étaient principalement ou uniquement dédiés au calcul graphique, c'est-à-dire à l'affichage d'objets 3D à l'écran sous forme de triangles.
ROCm
ROCm is an Advanced Micro Devices (AMD) software stack for graphics processing unit (GPU) programming. ROCm spans several domains: general-purpose computing on graphics processing units (GPGPU), high performance computing (HPC), heterogeneous computing. It offers several programming models: HIP (GPU-kernel-based programming), OpenMP/Message Passing Interface (MPI) (directive-based programming), OpenCL. ROCm is free, libre and open-source software (except the GPU firmware blobs), it is distributed under various licenses.
Scratchpad memory
Scratchpad memory (SPM), also known as scratchpad, scratchpad RAM or local store in computer terminology, is an internal memory, usually high-speed, used for temporary storage of calculations, data, and other work in progress. In reference to a microprocessor (or CPU), scratchpad refers to a special high-speed memory used to hold small items of data for rapid retrieval. It is similar to the usage and size of a scratchpad in life: a pad of paper for preliminary notes or sketches or writings, etc.
Calcul hétérogène
Heterogeneous computing refers to systems that use more than one kind of processor or core. These systems gain performance or energy efficiency not just by adding the same type of processors, but by adding dissimilar coprocessors, usually incorporating specialized processing capabilities to handle particular tasks. Usually heterogeneity in the context of computing referred to different instruction-set architectures (ISA), where the main processor has one and other processors have another - usually a very different - architecture (maybe more than one), not just a different microarchitecture (floating point number processing is a special case of this - not usually referred to as heterogeneous).
SIMT
SIMT (de l'Single Instruction, Multiple Threads, selon la taxonomie de Flynn) est une amélioration de SIMD (de l'Single Instruction, Multiple Data) qui permettait sur des processeur arithmétique spécialisés de faire des calculs sur plusieurs données en une seule instruction, en l'adaptant au calcul multithread (c'est-à-dire, comportant plusieurs files d'exécution). MIMD (multiple instruction, multiple data) SIMD (Single Instruction, Multiple Data) SPMD (Single Pogram, Multiple Data) Processeur vectoriel Cat