Add support for TII backend by GabrielePalazzo · Pull Request #3797 · NVIDIA/cuda-quantum

GabrielePalazzo · 2026-01-26T16:11:07Z

Description

This PR adds support for the TII backend.

Checklist:

I have added tests to cover my changes.
I have updated the documentation accordingly.
I have read the CONTRIBUTING document.

Signed-off-by: Gabriele Palazzo <73099233+GabrielePalazzo@users.noreply.github.com>

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sacpis · 2026-01-27T18:19:46Z

/ok to test 518dc29

Command Bot: Processing...

Signed-off-by: GabrielePalazzo <73099233+GabrielePalazzo@users.noreply.github.com>

unittests/backends/qibo/CMakeLists.txt

unittests/backends/qibo/QiboTester.cpp

Signed-off-by: GabrielePalazzo <73099233+GabrielePalazzo@users.noreply.github.com>

Renaud-K

Thank you for the changes. GitHub says that I still have requested changes although I resolved all conversations. So I will approve to get out the way, but please wait for another reviewer's final approval.

GabrielePalazzo · 2026-01-29T11:01:24Z

Thank you for the changes. GitHub says that I still have requested changes although I resolved all conversations. So I will approve to get out the way, but please wait for another reviewer's final approval.

No worries. I'll add a brief mention to the backend in the documentation, but the code is ready.
I think I also need to sign the first commits.
Thank you!

efratshabtai · 2026-01-29T16:57:56Z

Can you please add Qibo's logo to https://nvidia.github.io/cuda-quantum/latest/using/backends/hardware.html and documentation page under https://nvidia.github.io/cuda-quantum/latest/using/backends/cloud.html? This page can also include links to Qibo's docs

efratshabtai · 2026-01-29T17:00:00Z

docs/sphinx/targets/python/qibo.py

+import cudaq
+
+# Set the target at the beginning of the program.
+cudaq.set_target("qibo")


Are there additional parameters needed such as the device / qibo backend the user wants to use or any other parameters usually sent in the Qibo APIs?

device and project are mandatory. I marked them as required in the YAML file and explicitly noted this in the documentation. The mock server does not currently validate their presence, but I can add checks for all required parameters if you think that’s necessary.

Signed-off-by: GabrielePalazzo <73099233+GabrielePalazzo@users.noreply.github.com>

GabrielePalazzo · 2026-02-03T18:59:30Z

After internal discussions, we decided to rename the backend to TII, as they provide the superconducting qubits available on the server. Accordingly, the TII logo was placed under the superconducting providers rather than the cloud providers.

…users.noreply.github.com> I, GabrielePalazzo <73099233+GabrielePalazzo@users.noreply.github.com>, hereby add my Signed-off-by to this commit: 071e6f9 I, GabrielePalazzo <73099233+GabrielePalazzo@users.noreply.github.com>, hereby add my Signed-off-by to this commit: f0fe6fd I, GabrielePalazzo <73099233+GabrielePalazzo@users.noreply.github.com>, hereby add my Signed-off-by to this commit: c93e52c I, GabrielePalazzo <73099233+GabrielePalazzo@users.noreply.github.com>, hereby add my Signed-off-by to this commit: 2d65b9d I, GabrielePalazzo <73099233+GabrielePalazzo@users.noreply.github.com>, hereby add my Signed-off-by to this commit: 4fde84e I, GabrielePalazzo <73099233+GabrielePalazzo@users.noreply.github.com>, hereby add my Signed-off-by to this commit: e9a154c I, GabrielePalazzo <73099233+GabrielePalazzo@users.noreply.github.com>, hereby add my Signed-off-by to this commit: 8933977 I, GabrielePalazzo <73099233+GabrielePalazzo@users.noreply.github.com>, hereby add my Signed-off-by to this commit: 5a8cbbe I, GabrielePalazzo <73099233+GabrielePalazzo@users.noreply.github.com>, hereby add my Signed-off-by to this commit: 9431c26 I, GabrielePalazzo <73099233+GabrielePalazzo@users.noreply.github.com>, hereby add my Signed-off-by to this commit: 40c64d3 I, GabrielePalazzo <73099233+GabrielePalazzo@users.noreply.github.com>, hereby add my Signed-off-by to this commit: fe9053e I, GabrielePalazzo <73099233+GabrielePalazzo@users.noreply.github.com>, hereby add my Signed-off-by to this commit: 642665c I, GabrielePalazzo <73099233+GabrielePalazzo@users.noreply.github.com>, hereby add my Signed-off-by to this commit: f3d542a I, GabrielePalazzo <73099233+GabrielePalazzo@users.noreply.github.com>, hereby add my Signed-off-by to this commit: c5ec958 I, GabrielePalazzo <73099233+GabrielePalazzo@users.noreply.github.com>, hereby add my Signed-off-by to this commit: 662f4ec I, GabrielePalazzo <73099233+GabrielePalazzo@users.noreply.github.com>, hereby add my Signed-off-by to this commit: a2e5143 I, GabrielePalazzo <73099233+GabrielePalazzo@users.noreply.github.com>, hereby add my Signed-off-by to this commit: 518dc29 I, GabrielePalazzo <73099233+GabrielePalazzo@users.noreply.github.com>, hereby add my Signed-off-by to this commit: b847481 I, GabrielePalazzo <73099233+GabrielePalazzo@users.noreply.github.com>, hereby add my Signed-off-by to this commit: 37610aa Signed-off-by: GabrielePalazzo <73099233+GabrielePalazzo@users.noreply.github.com>

Signed-off-by: GabrielePalazzo <73099233+GabrielePalazzo@users.noreply.github.com>

GabrielePalazzo · 2026-02-04T07:33:41Z

@efratshabtai let me know if I need to change anything else. Thank you.

GabrielePalazzo added 18 commits October 27, 2025 23:02

Initial commit for Qibo backend

071e6f9

generate qasm code

f0fe6fd

added arguments for qibo cloud

c93e52c

convert 'True'/'False' strings to bool

2d65b9d

mock qibo server

4fde84e

mock server to test the qibo backend

e9a154c

added basic unit test for qibo

8933977

targettests

5a8cbbe

python test for qibo

9431c26

the qibo backend returns counts as 'frequencies'

40c64d3

check if frequency results are correct

fe9053e

add test for 'sample_async'

642665c

added basic implementation for CI tests

f3d542a

Merge branch 'main' into qibo_backend

c667efd

Signed-off-by: Gabriele Palazzo <73099233+GabrielePalazzo@users.noreply.github.com>

added base CI implementation for qibo tests

c5ec958

add reference to qibo authentication token in CI

662f4ec

add qibo.cpp example in the docs

a2e5143

add qibo.py example in the docs

518dc29

GabrielePalazzo requested review from 1tnguyen, bettinaheim and bmhowe23 as code owners January 26, 2026 16:11

added docstrings in the server helper

b847481

GabrielePalazzo added 2 commits January 27, 2026 20:51

add license headers

37610aa

formatted code in cpp files

0251ac5

Signed-off-by: GabrielePalazzo <73099233+GabrielePalazzo@users.noreply.github.com>

Renaud-K requested changes Jan 27, 2026

View reviewed changes

unittests/backends/qibo/CMakeLists.txt Outdated Show resolved Hide resolved

unittests/backends/qibo/QiboTester.cpp Outdated Show resolved Hide resolved

GabrielePalazzo added 3 commits January 28, 2026 21:45

use 'add_backend_unittest_executable' in cmake file

ba5e650

Signed-off-by: GabrielePalazzo <73099233+GabrielePalazzo@users.noreply.github.com>

add main to test and clean imports

aaaffac

Signed-off-by: GabrielePalazzo <73099233+GabrielePalazzo@users.noreply.github.com>

use environment variable for url, add missing trailing slash

0af23ac

Signed-off-by: GabrielePalazzo <73099233+GabrielePalazzo@users.noreply.github.com>

code formatting

5925a85

Signed-off-by: GabrielePalazzo <73099233+GabrielePalazzo@users.noreply.github.com>

Renaud-K self-requested a review January 29, 2026 00:57

Renaud-K approved these changes Jan 29, 2026

View reviewed changes

efratshabtai reviewed Jan 29, 2026

View reviewed changes

GabrielePalazzo added 6 commits February 3, 2026 11:07

rename Qibo backend to TII

ba26cab

Signed-off-by: GabrielePalazzo <73099233+GabrielePalazzo@users.noreply.github.com>

added TII logo

1113f3e

Signed-off-by: GabrielePalazzo <73099233+GabrielePalazzo@users.noreply.github.com>

add documentation for the TII backend

4552ce3

Signed-off-by: GabrielePalazzo <73099233+GabrielePalazzo@users.noreply.github.com>

required arguments for the TII backend

165ca54

Signed-off-by: GabrielePalazzo <73099233+GabrielePalazzo@users.noreply.github.com>

refactor documentation for the TII backend

d1e91b8

Signed-off-by: GabrielePalazzo <73099233+GabrielePalazzo@users.noreply.github.com>

remove reference to remote url

dfd6c9c

Signed-off-by: GabrielePalazzo <73099233+GabrielePalazzo@users.noreply.github.com>

GabrielePalazzo requested a review from mitchdz as a code owner February 3, 2026 18:30

GabrielePalazzo changed the title ~~Add support for Qibo backend~~ Add support for TII backend Feb 3, 2026

GabrielePalazzo added 2 commits February 3, 2026 22:06

qibo->tii rename in cmake files

287ab4d

Signed-off-by: GabrielePalazzo <73099233+GabrielePalazzo@users.noreply.github.com>

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Add support for TII backend#3797

Add support for TII backend#3797
GabrielePalazzo wants to merge 33 commits intoNVIDIA:mainfrom
qiboteam:qibo_backend

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