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flixOpt / flixopt Public

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Feature/tsam v3+rework#571

Merged

FBumann merged 52 commits intodevflixOpt/flixopt:devfrom

feature/tsam-v3+reworkflixOpt/flixopt:feature/tsam-v3+reworkCopy head branch name to clipboard

Jan 17, 2026

Conversation Commits52 (52)Checks Files changed

Merged

Feature/tsam v3+rework#571
FBumann merged 52 commits intodevfrom
feature/tsam-v3+rework

Commits

Commits on Jan 12, 2026

⏺ I've completed the core migration to tsam 3.0.0. Here's a summary of changes:
FBumann
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⏺ The tsam 3.0 migration is now complete with the correct API. All 79 tests pass.
FBumann
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⏺ The simplification refactoring is complete. Here's what was done:
FBumann
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I continued the work on simplifying flixopt's clustering architecture. Here's what was done in this session:
FBumann
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All the clustering notebooks and documentation have been updated for the new simplified API. The main changes were:
FBumann
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Fixes made:
FBumann
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⏺ All 126 clustering tests pass. I've added 8 new tests in a new TestMultiDimensionalClusteringIO class that specifically test:
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Summary of Changes
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Summary of changes:
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rename to ClusteringResults
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New xarray-like interface:
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Updated the following notebooks:
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ClusteringResults class:
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Renamed:
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Expose SegmentConfig
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The segmentation feature has been ported to the tsam 3.0 API. Key changes made:
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Added Properties
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Summary of Changes
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Commits on Jan 13, 2026

⏺ I've completed the implementation. Here's a summary of everything that was done:
FBumann
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Add method to extract data used for clustering.
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Summary of Refactoring
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Changes Made
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Update Notebook
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1. Clustering class now wraps AggregationResult objects directly
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I've completed the refactoring to make the Clustering class derive results from _aggregation_results instead of storing them redundantly:
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The issue was that _build_aggregation_data() was using n_timesteps_per_period from tsam which represents the original period duration, not the representative time dimension. For segmented systems…
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❯ Remove some data wrappers.
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Improve docstrings and types
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Add notebook and preserve input data
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Implemented include_original_data parameter:
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Changes made:
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Changes made:
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drop_constant_arrays to use std < atol instead of max == min
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Commits on Jan 14, 2026

Temp fix (should be fixed in tsam)
FBumann
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Revert "Temp fix (should be fixed in tsam)"
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Merge origin/main into feature/tsam-v3+rework

FBumann
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claude
committed

Commits on Jan 15, 2026

Updated tsam dependencies to use the PR branch of tsam containing the new release (unfinished!)
FBumann
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All fast notebooks now pass. Here's a summary of the fixes:
FBumann
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⏺ All fast notebooks now pass. Here's a summary of the fixes:
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Fix notebook
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Fix CI...
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Revert "Fix CI..."
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Fix CI...
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Commits on Jan 16, 2026

Merge branch 'main' into feature/tsam-v3+rework
FBumann
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Merge branch 'dev' into feature/tsam-v3+rework
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Fix: Correct expansion of segmented clustered systems (#573)

FBumann
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claude
authored
Added @functools.cached_property to timestep_mapping in clustering/base.py:
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perf: 40x faster FlowSystem I/O + storage efficiency improvements (#578)

FBumann
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claude
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Commits on Jan 17, 2026

perf: Optimize clustering and I/O (4.4x faster segmented clustering) (#579)

FBumann
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claude
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2. Lines 1245-1251 (new guard): Added explicit check after drop_constant_arrays() in clustering_data() that raises a clear ValueError if all variables are constant, preventing cryptic to_datafram…
FBumann
committed
Fix/broadcasting (#580)
FBumann
authored
Add some defensive validation
FBumann
committed

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