nikhilsaggi submission

[nikhilsaggi]

Implement parallel target building with dependency management.

Submission Checklist

• My file is named submissions/<github_username>.py.
• My submission runs locally.
• My output matches the expected output.
• I did not hardcode the final output.

Approach Description

Using Kahn's algorithm. We track and maintain the following:

• ready: all targets that are ready to be built
• remaining tracks, for each target, how many remaining dependent targets it has
• dependents tracks, for each target, which targets are dependent on it

We instantiate the above variables. Each worker runs the worker() function, which

1. pulls targets from ready
2. calls build() on them
3. updates above variables

Algorithm terminates when sentinel is pushed to queue, indicating threads to terminate.

[github-actions]

✅ Results

Metric	Value
Speedup	5.7585696514413325x
Passed	true
Graphs	5

Per-graph results

Graph	Speedup	Status
chain.json	0.9688549410311909x	✅
diamond.json	11.511157449051403x	✅
realistic.json	23.237478995148933x	✅
tree.json	21.049538689587287x	✅
wide.json	21.454230349830258x	✅

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