Performance Studies

In-depth performance studies of CUDA-Q QEC decoders on NVIDIA GPUs – measuring decode latency, logical error rate, and the trade-offs behind decoder tuning knobs.

The first study shows how gamma ensembling narrows the Relay BP decode-latency tail, improving the logical error rate under hard decode deadlines by up to ~89x on bivariate-bicycle codes (measured on a single GB200 with CUDA-Q QEC 0.7.0).

• Improving Relay BP Decoding With Gamma Ensembles