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comparison COBRAxy/utils/CBS_backend.py @ 342:057909a104d9 draft default tip

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author luca_milaz
date Thu, 04 Sep 2025 13:20:46 +0000
parents 2aea7e27ae0f
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comparison
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341:fe87d6fd7884 342:057909a104d9
70 i+=1 70 i+=1
71 71
72 # Initialize the parameters 72 # Initialize the parameters
73 params=glp_smcp() 73 params=glp_smcp()
74 params.presolve=GLP_ON 74 params.presolve=GLP_ON
75 params.msg_lev = GLP_MSG_ALL 75 params.msg_lev = GLP_MSG_ERR
76 params.tm_lim=4000 76 params.tm_lim=4000
77 glp_init_smcp(params) 77 glp_init_smcp(params)
78 78
79 # Solve the problem 79 glp_term_out(GLP_OFF)
80 glp_scale_prob(lp,GLP_SF_AUTO) 80
81 81 try:
82 value=glp_simplex(lp, params) 82
83 83 # Solve the problem
84 Z = glp_get_obj_val(lp); 84 glp_scale_prob(lp,GLP_SF_AUTO)
85 85
86 if value == 0: 86 value=glp_simplex(lp, params)
87 fluxes = [] 87
88 for i in range(len(reactions)): fluxes.append(glp_get_col_prim(lp, i+1)) 88 Z = glp_get_obj_val(lp);
89 return fluxes,Z 89
90 else: 90 if value == 0:
91 raise Exception("error in LP problem. Problem:",str(value)) 91 fluxes = []
92 92 for i in range(len(reactions)): fluxes.append(glp_get_col_prim(lp, i+1))
93 93 return fluxes,Z
94 else:
95 raise Exception("error in LP problem. Problem:",str(value))
96 except Exception as e:
97 # Re-enable terminal output for error reporting
98 glp_term_out(GLP_ON)
99 raise Exception(e)
100 finally:
101 # Re-enable terminal output after solving
102 glp_term_out(GLP_ON)
103
94 # Create LP structure 104 # Create LP structure
95 def create_lp_structure(model): 105 def create_lp_structure(model):
96 106
97 reactions=[el.id for el in model.reactions] 107 reactions=[el.id for el in model.reactions]
98 coefs_obj=[reaction.objective_coefficient for reaction in model.reactions] 108 coefs_obj=[reaction.objective_coefficient for reaction in model.reactions]