Glossary

PVA

Programmable Vision Accelerator

VPU

Vector Processing Unit, the main data processing engine in PVA.

DLUT

Decoupled Lookup Unit. A coprocessor that can offload 1D/2D lookup and interpolation tasks from the VPU. It can operate independently of the VPU and manages memory bank conflicts internally.

VMEM

Vector memory, the VPU’s local/L1 data memory.

DMA

Direct Memory Access. A hardware block responsible for copying data between local memory and other memory spaces in the system, such as on-chip memory or system memory (DDR).

GSDF

Gather Scatter Dataflow

RDF

Raster Dataflow

SOL

Speed of Light. In benchmarking, SOL represents the theoretical maximum performance of an operator. Actual performance is often expressed as a percentage of SOL to indicate how closely the implementation approaches the theoretical maximum.

VPI

Vision Programming Interface. A software library that implements computer vision and image processing algorithms on various computing hardware platforms available in NVIDIA embedded and discrete devices.