038 min

Grover search race

Compare exhaustive search, parallel search and quantum query scaling.

03

Separate theoretical query advantage from real elapsed time.

Back to all comparisons

01 · Set up the comparison

Choose a workload and scale

Separate theoretical query advantage from real elapsed time.

1

Workloads

Choose what kind of work to test

Workload is what the machine does; scale is how much. Choosing one loads a starting scale.

2/2
2

Search-space size

20

Scaling: Small search spaceCustom scale
Small spaceLarge space

Changing the scale keeps this workload. Choose another card above to change workloads.

3

Test question

When do fewer Oracle queries matter more than control overhead?

Current setupSmall search spaceSearch-space size: 20

02 · Compare

Result snapshot

Choose a workload and scale, then run the comparison to see the best fit and evidence.

Choose a workload and scale, then run the comparison to see the best fit and evidence.

03

Explain

Explain

Classical search needs order N checks, while ideal Grover search needs order √N Oracle queries; hardware overhead can still dominate.

04

Challenge

Grow the search until the QPU uses at most one tenth of the CPU queries.

Separate theoretical query advantage from real elapsed time.