# How to retrieve rescaled h and J values after auto_scale on D-Wave QPU?

Hi,

I'm working on a problem that I solve using a D-Wave QPU, and I have a question regarding auto-scaling of the problem's `h`

(linear coefficients) and `J`

(quadratic coefficients) values.

According to the documentation, if the *auto_scale* parameter is enabled (which it is by default), the `h`

and `J`

values of the problem are rescaled to fit the QPU's `h_range`

and `extended_j_range`

. I would like to retrieve the rescaled h and J values but have not been able to find a way to accomplish this.

Here is a small example code which I would like to extend to be able to retrieve the rescaled values:

import dimod

import dwave.inspector

from dwave.system import DWaveSampler, EmbeddingComposite

# define problem

bqm = dimod.BQM.from_ising({'a': 0.1, 'b': 0.2, 'c': 0.3}, {'ab': 0.4, 'bc': 0.5, 'ca': 0.6})

# get sampler

sampler = EmbeddingComposite(DWaveSampler())

# sample

sampleset = sampler.sample(bqm, num_reads=100)

One thought that came to my mind was that I might be able to see the rescaled values in the embedded problem using the Problem Inspector:

dwave.inspector.show(bqm, sampleset)

However, it only shows the h and J values that I originally defined, not the rescaled ones. I find this quite strange, as the embedded problem on the Target - QPU should reflect the actual values of the physical problem.

Despite these attempts, I haven't been able to retrieve the actual post-scaling `h`

and `J`

values that are used on the physical qubits.

In summary, I have **two questions**:

- I would like to find a way to retrieve the actual rescaled h and J values that are used on the physical qubits.
- Is there an explanation as to why the Problem Inspector on the Target - QPU only shows the unscaled values, rather than the rescaled ones?

Any help would be greatly appreciated!

Thanks in advance!

## Comments

David J(Report)Hello,

There currently exists a feature request to include the scalar used for auto-scaling in the SampleSet returned by the SAPI endpoint.

For the time being, running the following code will calculate the default scalar value for a given BQM:

Hopefully this was helpful.

Please let us know if you have any questions.

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