Lagrangian relaxation of the generic materials and operations planning model

G. Rius-Sorolla (), J. Maheut (), Jairo R. Coronado-Hernandez () and J. P. Garcia-Sabater
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G. Rius-Sorolla: Universitat Politècnica de València
J. Maheut: Universitat Politècnica de València
Jairo R. Coronado-Hernandez: Universidad de la Costa
J. P. Garcia-Sabater: Universitat Politècnica de València

Central European Journal of Operations Research, 2020, vol. 28, issue 1, No 7, 105-123

Abstract: Abstract The supply chain management requires increasingly proposals for the production programming planning that brings together its special singularities. Solving coexisting products and alternative processes or by-products must be allowed by the mathematical programming models. The generic materials and operations planning (GMOP) formulation allows operating with different materials and process lists. The paper presents a procedure to solve the versatile GMOP model by the Lagrange Relaxation. The subgradient update method of the lagrangian multiplier is compared with a linear update method. Obtaining lower bound faster compared to the linear method is allowed by the subgradient method, but the linear method provides better solutions after certain iterations.

Keywords: GMOP; Lagrangian relaxation; Subgradient (search for similar items in EconPapers)
Date: 2020
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Citations: View citations in EconPapers (3)

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DOI: 10.1007/s10100-018-0593-0

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