Closed salvadorgarciamunoz closed 1 year ago
blnicho
commented
5 years ago @salvadorgarciamunoz could you run it again with the tee=True option when calling the solver and post the last few lines of the solver log? I want to verify that Baron is finding a solution.
solver.solve(model, tee=True)
salvadorgarciamunoz
commented
5 years ago Output below, looks like Baron is looking for CPLEX (??)
===========================================================================
BARON version 18.11.12. Built: OSX-64 Mon Nov 12 23:20:02 EST 2018
BARON is a product of The Optimization Firm.
For information on BARON, see https://minlp.com/about-baron
Licensee: Salvador Garcia Munoz at Eli Lilly and Company, sal.garcia@lilly.com.
Changing option LPSol to 8 (CLP) and continuing.
If you use this software, please cite publications from
https://minlp.com/baron-publications, such as:
Kilinc, M. and N. V. Sahinidis, Exploiting integrality in the global
optimization of mixed-integer nonlinear programming problems in BARON,
Optimization Methods and Software, 33, 540-562, 2018.
===========================================================================
This BARON run may utilize the following subsolver(s)
For LP/MIP: CLP/CBC
For NLP: IPOPT, FILTERSD, FILTERSQP
===========================================================================
Doing local search
Preprocessing found feasible solution with value 0.00000000000
Problem solved during preprocessing
Lower bound is -.100000000000E-005
Cleaning up
*** Normal completion ***
LP subsolver time: 0.00
MIP subsolver time: 0.00
NLP subsolver time: 0.01
Fixed-NLP subsolver time: 0.00
Max LP subsolver time: -1.00
Max NLP subsolver time: 0.01
Row management time: 0.00
MIP management time: 0.00
Total PW relaxation time: 0.00
Cutting time: -0.00
All other time: 0.02
Wall clock time: 0.00
Total CPU time used: 0.03
on presolving: 0.00
on parsing: 0.01
on preprocessing: 0.02
on navigating: 0.01
on relaxed: 0.00
on local: 0.00
on tightening: 0.00
on preprobe: 0.00
on marginals: 0.00
on strong branching: 0.00
on probing: 0.00
on iscvx: 0.00
on IIS detection: 0.00
on ad: 0.00
number of calls CPU time
objfunc: 13 0.00
confunc: 13 0.00
objgrad: 6 0.00
congrad: 6 0.00
hessian: 2 0.00
Total no. of BaR iterations: -1
Best solution found at node: -1
Max. no. of nodes in memory: 0
Convexity exploitation statistics
no. of cvx expressions identified: 256
Total no. of cvx cuts generated: 0
Time spent on cvx cuts: 0.00
Time spent on recognition: 0.00
Time spent on initial OA: 0.00
Time spent on generating cuts: 0.00
Time spent on range reductions: 0.00
MIP cuts generation statistics
no. of mip cuts: 0
Time (s) spent on MIP cuts: 0.00
Cut Pool: 0.00
Implication Identification: 0.00
Conflict Identification: 0.00
Implication Cuts: 0.00
Clique Cuts: 0.00
Knapsack Cover Cuts: 0.00
Knapsack w/ Gub Cover Cuts: 0.00
Flow Cover Cuts: 0.00
Number of coefficient reductions identified 4
Number of reduction rows identified 4
Number of times coefficients were reduced 0
Number of implications identified 8
Number of implication cuts generated 0
Number of conflicts identified 0
Number of clique cuts generated 0
Number of knapsack cover cuts generated 0
Number of knapsack w/gub covercuts generated 0
Number of flow cover cuts generated 0
Convex transformable cut generation statistics
Time spent on cuts: 0.00
Total no. of functions identified: 0
Total no. of cuts generated: 0
MOL cut generation statistics
Time spent on cuts: 0.00
Total no. of expressions identified: 0
- Number of Lennard-Jones functions: 0
- Number of triplets: 0
Total no. of cuts generated: 0
KKT-based reduction statistics:
Calls of kktdo subroutine: (Success / Call)
KKTmido 0 0
KKToido 0 0
KKTuncdo 0 0
Missing branching opportunities: 0
Maximum percentage of missed branching values: 0.00
Minimum percentage of missed branching values: 0.00
Average percentage of missed branching values: 0.00
Detected 0 redundant constraints at most from 6 equations
Eigenvalue relaxations statistics
Number CPU time
Eigenvalue calculations 0 0.00
Generalized eigenvalue calculations 0 0.00
BQP relaxations statistics
Time spent on recognition: 0.00
Number of vertices in the bilinear graph: 0
Number of edges in the bilinear graph: 0
Density of the bilinear graph [%]: 0.0
Chordality of the bilinear graph: F
Number of chordless cycles: 0
Minimum length of the chordless cycles: 0
Maximum length of the chordless cycles: 0
Number of cycles of length 4: 0
Number of cycles of length 5: 0
Number of cycles of length 6: 0
Number of cycles of length 7: 0
Number of cycles of length 8: 0
Number of cuts for cycles of length 4: 0
Number of cuts for cycles of length 5: 0
Number of cuts for cycles of length 6: 0
Number of cuts for cycles of length 7: 0
Number of cuts for cycles of length 8: 0
Separation time for cycles of length 4: 0.00
Separation time for cycles of length 5: 0.00
Separation time for cycles of length 6: 0.00
Separation time for cycles of length 7: 0.00
Separation time for cycles of length 8: 0.00
Total time spent on cut generation: 0.00
Number of MIP relaxations solved 0
Number of LP relaxations solved 0
Number of MIP infeasibilities ignored 0 out of 0
Number of wrong solutions caught in barlp 0 out of 0
Incorrect infeasibility claims in barlp 0 out of 0 from 0
Number of wrong solutions caught in barnlps 0 out of 1
Cut generation statistics (number of cuts / CPU sec)
Bilinear 0 0.00
LD-Envelopes 0 0.00
Multilinears 0 0.00
Edge concave 0 0.00
RLT 0 0.00
Convexity 0 0.00
Integrality 0 0.00
CTFs 0 0.00
MOL 0 0.00
BOOL 0 0.00
BINQP 0 0.00
All done
===========================================================================
Unable to find/load CPLEX library dlopen(libcplex.dylib, 1): image not found
Unable to find/load CPLEX library dlopen(libcplex1280.dylib, 1): image not found
Traceback (most recent call last):
File "<ipython-input-1-62b6a2cefd09>", line 1, in <module>
runfile('/SGMFiles/PythonCode/Abemaciclib/untitled0.py', wdir='/SGMFiles/PythonCode/Abemaciclib')
File "/Users/c184156/anaconda3/envs/mypyomo55/lib/python3.6/site-packages/spyder_kernels/customize/spydercustomize.py", line 668, in runfile
execfile(filename, namespace)
File "/Users/c184156/anaconda3/envs/mypyomo55/lib/python3.6/site-packages/spyder_kernels/customize/spydercustomize.py", line 108, in execfile
exec(compile(f.read(), filename, 'exec'), namespace)
File "/SGMFiles/PythonCode/Abemaciclib/untitled0.py", line 6, in <module>
rhat,rIhat,ssr,mod,res=eiot.calc(Dm[1,:],eiot_obj_7,0.0521116)
File "/SGMFiles/PythonCode/pyEIOT/eiot.py", line 355, in calc
results=solver.solve(model,tee=True)
File "/Users/c184156/anaconda3/envs/mypyomo55/lib/python3.6/site-packages/pyomo/opt/base/solvers.py", line 631, in solve
result = self._postsolve()
File "/Users/c184156/anaconda3/envs/mypyomo55/lib/python3.6/site-packages/pyomo/opt/solver/shellcmd.py", line 268, in _postsolve
results = self.process_output(self._rc)
File "/Users/c184156/anaconda3/envs/mypyomo55/lib/python3.6/site-packages/pyomo/opt/solver/shellcmd.py", line 324, in process_output
results = self.process_logfile()
File "/Users/c184156/anaconda3/envs/mypyomo55/lib/python3.6/site-packages/pyomo/solvers/plugins/solvers/BARON.py", line 286, in process_logfile
results.solver.statistics['Convexity_cuts'] = int(line.split()[1])
ValueError: invalid literal for int() with base 10: 'exploitation'I suspect this is a bug in the BARON interface. Seems like the BARON reader is not very robust and using a hard-coded line number to parse the log file.
mrmundt
commented
1 year ago @salvadorgarciamunoz - I am going through old issues and checking to see if they are still concerns. Are you having any of these issues with the newer versions of BARON and/or Pyomo?
salvadorgarciamunoz
commented
1 year ago I have not tested this in a while, let me give it whirl, I have been using BARON through GAMS, but I will let you know.
From: mrmundt @.> Sent: Tuesday, February 14, 2023 2:17 PM To: Pyomo/pyomo @.> Cc: Garcia Munoz, Salvador @.>; Mention @.> Subject: Re: [Pyomo/pyomo] BARON results not loading (#754)
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@salvadorgarciamunozhttps://github.com/salvadorgarciamunoz - I am going through old issues and checking to see if they are still concerns. Are you having any of these issues with the newer versions of BARON and/or Pyomo?
— Reply to this email directly, view it on GitHubhttps://github.com/Pyomo/pyomo/issues/754#issuecomment-1430254937, or unsubscribehttps://github.com/notifications/unsubscribe-auth/AG6JFJ4MCPIEXFIYNZO4IITWXPKY5ANCNFSM4GFM6A6A. You are receiving this because you were mentioned.Message ID: @.***>
blnicho
commented
1 year ago @salvadorgarciamunoz we're going to close this. If you have issues with BARON in the future please open a new issue.
After solving a model with Baron directly
solver = SolverFactory('baron') results=solver.solve(model)
I get the below error:
File "/Users/c184156/anaconda3/envs/mypyomo55/lib/python3.6/site-packages/pyomo/solvers/plugins/solvers/BARON.py", line 286, in process_logfile results.solver.statistics['Convexity_cuts'] = int(line.split()[1])
ValueError: invalid literal for int() with base 10: 'exploitation'
The error seems to come from the BARON.py routine at the time the results are loaded from BARON.
I can provide files to reproduce the error
sal dot garcia at lilly dot com