Realtime Decoding

Realtime decoding runs CUDA-Q QEC decoders concurrently with quantum execution, applying corrections within qubit coherence times. For how it works, the four-stage workflow, and terminology, see Realtime Decoding.

The examples below cover realtime decoding end to end — start with Getting Started, then explore the specialized predecoding and decoding workloads:

• Getting Started with Realtime Decoding
  • Configuration
  • Backend Selection
  • Compilation and Execution Examples
  • Troubleshooting
• AI Predecoder with CUDA-Q Realtime
  • Prerequisites
  • Data Directory Layout
  • Building
  • Running
  • Changing the Predecoder Model
  • Reading the Output
• AI Predecoder with CUDA-Q Realtime (with FPGA Data Injection)
  • Prerequisites
  • Repository Layout
  • Data Directory Layout
  • Building
  • Emulated End-to-End Test
  • FPGA End-to-End Test
  • Changing the Predecoder Model
  • Orchestration Script Reference
• Relay BP Decoding with CUDA-Q Realtime
  • Prerequisites
  • Repository Layout
  • Build and Unit Test
  • Surface Code Test
  • Emulated End-to-End Test
  • FPGA End-to-End Test
  • Orchestration Script Reference

See Also

• Example source code: libs/qec/unittests/realtime/app_examples

• Realtime Decoding C++ API

• Realtime Decoding Python API