dwavesystems/dimod

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A shared API for QUBO/Ising samplers.

Stars: 143
Forks: 91
Open beginner issues: 3
Indexed issues: 154
Avg merge: 1h 24m
Merged PRs (30d): 3

Dominant language: Python
License: Apache-2.0
Last GitHub push: Sep 9, 2026
Latest indexed: Sep 15, 2026
Contributing guide: Contributing guide
Code of conduct: No code of conduct
Beginner labels: No beginner labels indexed

Beginner friendly Everything

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154 open issues indexed

generator maximum_weight_independent_set() has energy multiplied by weight Open

Difficulty 2/5 1-3 hours Newbie friendliness 68/100

dwavesystems/dimod#1427 · 1 comment · Opened Jun 19, 2026
RFC: Ground State Preservation under High Thermal Noise via Sovereign Phase Anchoring Open

Difficulty 5/5 Over a week Newbie friendliness 15/100

dwavesystems/dimod#1418 · Opened Mar 15, 2026
Issue with dimod parsing the truth value of an array in Python 3.13 Open

bug

dwavesystems/dimod#1412 · 1 comment · 1 assignee · Opened Nov 24, 2025
Error reporting: would be helpful to identify the offending parameter Open

enhancement

Difficulty 2/5 1-3 hours Newbie friendliness 45/100

dwavesystems/dimod#1405 · 1 comment · Opened May 16, 2025
Generator power_r() needs docs Open

Difficulty 2/5 1-3 hours Newbie friendliness 55/100

dwavesystems/dimod#1404 · Opened May 5, 2025
Unexpected behaviour for dimod.make_quadratic Open

Difficulty 3/5 1-2 days Newbie friendliness 38/100

dwavesystems/dimod#1385 · 3 comments · Opened Aug 21, 2024
Consider filtering functionality in `ConstrainedQuadraticModel.iter_constraint_data()` Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 35/100

dwavesystems/dimod#1381 · 6 comments · Opened Jul 29, 2024
Invalid escape sequences Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 35/100

dwavesystems/dimod#1370 · 1 reaction · Opened Jun 3, 2024
Consider adding a method that measures the "frustration" of a BQM Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 38/100

dwavesystems/dimod#1369 · Opened Mar 21, 2024
Consider adding a utility function to calculate the fraction of violated constraints in a sample set Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 45/100

dwavesystems/dimod#1360 · 1 comment · Opened Oct 16, 2023
Constraint labels can break CQM (de-)serialization Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 48/100

dwavesystems/dimod#1358 · 1 comment · Opened Sep 7, 2023
using pyinstaller leads to FileNotFoundError: 'dimod.libs' Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 35/100

dwavesystems/dimod#1353 · 10 comments · Opened Jul 19, 2023
Add unbalanced penalization for inequality constraints Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 32/100

dwavesystems/dimod#1339 · 3 comments · Opened Jun 21, 2023
dqm.adj fails when interactions exist Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 45/100

dwavesystems/dimod#1329 · Opened May 17, 2023
Deterministically ordered `BinaryPolynomial` Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 35/100

dwavesystems/dimod#1327 · Opened May 9, 2023
Add a method for reordering the variables in a sample set Open

enhancement

Difficulty 2/5 1-3 hours Newbie friendliness 62/100

dwavesystems/dimod#1325 · 1 comment · Opened Apr 19, 2023
Consider addings a method to get a graph showing the relationship between constraints Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 25/100

dwavesystems/dimod#1318 · 2 comments · Opened Mar 27, 2023
fix_variables optimised for fixing large numbers of variables Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 30/100

dwavesystems/dimod#1317 · Opened Mar 15, 2023
Be able to construct quadratic models from `np.memmap` array efficiently Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 25/100

dwavesystems/dimod#1312 · 2 comments · Opened Feb 24, 2023
Inconsistency for conflicting boundaries Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

dwavesystems/dimod#1309 · 1 comment · Opened Feb 3, 2023
Add constraint/objective construction from NumPy arrays Open

enhancement

Difficulty 3/5 1-2 days Newbie friendliness 58/100

dwavesystems/dimod#1308 · 4 comments · Opened Feb 1, 2023
cqm.to_hash() Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 35/100

dwavesystems/dimod#1306 · 1 comment · Opened Jan 23, 2023
It is allowed to build CQM object with quadratic interaction between real variables without any error raised Open

Difficulty 3/5 1-2 days Newbie friendliness 55/100

dwavesystems/dimod#1305 · Opened Dec 14, 2022
Improve the performance of removing many variables from a C++ quadratic model Open

enhancement

Difficulty 3/5 1-2 days Newbie friendliness 48/100

dwavesystems/dimod#1300 · Opened Dec 9, 2022
dimod dismisses part of the expression when both lower bound and higher bound are defined in a single line Open

bug enhancement

Difficulty 3/5 1-2 days Newbie friendliness 35/100

dwavesystems/dimod#1299 · 2 comments · Opened Dec 9, 2022
Add a method to check sample assignments against bounds Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

dwavesystems/dimod#1293 · Opened Nov 16, 2022
Use a more uniform structure for cython classes Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 25/100

dwavesystems/dimod#1289 · 1 comment · Opened Nov 10, 2022
Display constraint weight and penalty in CQM Open

Difficulty 4/5 3-5 days Newbie friendliness 38/100

dwavesystems/dimod#1260 · 2 comments · Opened Oct 7, 2022
CQM test case generator Open

enhancement

Difficulty 3/5 1-2 days Newbie friendliness 48/100

dwavesystems/dimod#1250 · Opened Sep 22, 2022
Add compress keyword argument to CQM.to_file() and BQM.to_file() Open

enhancement

Difficulty 2/5 1-3 hours Newbie friendliness 35/100

dwavesystems/dimod#1235 · 1 comment · Opened Aug 16, 2022
Integration with Pyomo (or similar) Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 35/100

dwavesystems/dimod#1232 · 4 comments · 3 reactions · Opened Aug 10, 2022
Add from_mps_file function for building CQMs Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 35/100

dwavesystems/dimod#1228 · 4 comments · 1 reaction · Opened Jul 19, 2022
Mypy stub files for Cython files Open

enhancement

Difficulty 3/5 1-2 days Newbie friendliness 35/100

dwavesystems/dimod#1221 · 1 comment · Opened Jul 11, 2022
Performant higher-order model implementation Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 5/100

dwavesystems/dimod#1219 · Opened Jul 5, 2022
Polynomial class (or similar) Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 25/100

dwavesystems/dimod#1218 · Opened Jul 5, 2022
Automatically remove zero entries from model Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 35/100

dwavesystems/dimod#1217 · 7 comments · Opened Jul 4, 2022
Fix inconsistent naming of poly classes? Open

question

Difficulty 4/5 3-5 days Newbie friendliness 35/100

dwavesystems/dimod#1216 · 3 comments · Opened Jul 4, 2022
Implement arithmetic operators for BinaryPolynomial Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 35/100

dwavesystems/dimod#1215 · 5 comments · Opened Jul 4, 2022
TypeError: '<' not supported between instances of 'BinaryQuadraticModel' and 'int' Open

Difficulty 2/5 1-3 hours Newbie friendliness 30/100

dwavesystems/dimod#1211 · 5 comments · Opened Jun 22, 2022
TypeError in division over Integer variable Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 25/100

dwavesystems/dimod#1190 · 4 comments · Opened May 25, 2022
Add absolute value and power operator for the BinaryQuadraticModel Open

enhancement question

Difficulty 5/5 Over a week Newbie friendliness 35/100

dwavesystems/dimod#1189 · 5 comments · Opened May 20, 2022
generalize multiplication_circuit to target multiple backend implementations Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

dwavesystems/dimod#1187 · Opened May 12, 2022
Prevent adding empty constraints to the CQM model Open

bug enhancement

Difficulty 3/5 1-2 days Newbie friendliness 45/100

dwavesystems/dimod#1177 · 1 comment · Opened Apr 21, 2022
Replacement for `BQM.to_numpy_matrix()` Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 25/100

dwavesystems/dimod#1173 · 4 comments · Opened Apr 21, 2022
Equality of CQM objects Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 35/100

dwavesystems/dimod#1165 · 2 comments · Opened Apr 11, 2022
Use `VariableLabel` rather than `Variable` in `dimod.typing` Open

enhancement

Difficulty 2/5 1-3 hours Newbie friendliness 45/100

dwavesystems/dimod#1160 · Opened Apr 4, 2022
add pandas as dependency Open

Difficulty 1/5 Under an hour Newbie friendliness 45/100

dwavesystems/dimod#1139 · 2 comments · Opened Mar 3, 2022
Specify deprecation policy in the docs Open

Difficulty 2/5 1-3 hours Newbie friendliness 45/100

dwavesystems/dimod#1138 · 1 reaction · Opened Mar 2, 2022
`SampleSet.as_completed()` or similar Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 35/100

dwavesystems/dimod#1125 · Opened Feb 24, 2022
BinaryPolynomial.normalize should be defined for range that includes zero Open

bug

Difficulty 5/5 Over a week Newbie friendliness 25/100

dwavesystems/dimod#1123 · Opened Feb 22, 2022

dwavesystems/dimod

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