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auction-lap's Introduction

auction-lap

Linear Assignment Problem (LAP) solver using the auction algorithm. Implemented in pytorch, runs on CPU or GPU.

Runtime scales w/

  • the dimension of the matrix
  • the range of entries in the matrix (max value - min value)

Note: cuda_auction is a lower-level CUDA implementation of the same algorithm. Note: numba_auction is a numba implementation of the same algorithm.

Installation
conda create -n auction_env python=3.6 pip
source activate auction_env
pip install -r requirements.txt
conda install pytorch==0.3.1 torchvision cuda91 -c pytorch -y
Usage
usage: benchmark.py [-h] [--max-entry MAX_ENTRY] [--min-dim MIN_DIM]
                    [--max-dim MAX_DIM] [--n-evals N_EVALS] [--eps EPS]
                    [--seed SEED]

optional arguments:
  -h, --help            show this help message and exit
  --max-entry MAX_ENTRY
                        maximum entry in matrix
  --min-dim MIN_DIM     minimum dimension matrix to test
  --max-dim MAX_DIM     maximum dimension matrix to test
  --n-evals N_EVALS     number of steps between min and max matrix size
  --eps EPS             "bid size" -- smaller values give better accuracy w/
                        longer runtime
  --seed SEED           random seed

See ./run.sh for examples.

Results

100-exact-time 1000-approx-time 1000-approx-score

To Do

auction-lap's People

Contributors

bkj avatar

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