Difference b/w D Wave leap hybrid solver and QBsolv?

[Qudsiaamir]

what are the principle differences with D Wave leap hybrid solver and QBsolv?

[randomir]

Hi @Qudsiaamir,

QBSolv is an optimized hybrid solver based on tabu solver, with QPU used for subproblems. It runs on your machine.

D-Wave Hybrid is a (Python) framework designed for creating classical-quantum hybrid workflows with an emphasis on ease of use. Simplified implementations of QBSolv in dwave-hybrid are provided as a two workflow construction examples. A hybrid workflow will run (i.e. will be orchestrated) from your/local machine, with parts possibly running on a remote system (e.g. Leap). The algorithm and execution flow are completely under developer's control.

Leap hybrid solver service is a collection of optimized hybrid solvers based on various classical algorithms, decomposition and hybridization techniques. They are closed-source, proprietary, and hosted on D-Wave cloud, accessible via Solver API as part of the Leap experience. For more details, you might find some of the following whitepapers interesting:

• D-Wave Hybrid Solver Service: An Overview,
• D-Wave Hybrid Solver Service + Advantage: Technology Update,
• Hybrid Solver for Discrete Quadratic Models
• and a few more.