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FICO
3 years agoCommunity Manager
XPRSmipoptimize - received signal SIGFPE, Arithmetic exception.
I am working on a program written in Pascal that's failing to optimize a MIP problem using XPRESS. The problem is created with XPRSloadmip and optimized with XPRSmipoptimize. In order to debug this ...
FICO
3 years agoCommunity Manager
Well, I linked the missing .so's, so that it references the .so.6 when attempting to load the .so.5 both for libncurses.so.5 and libtinfo.so.5 and now the optimizer command works.
This is the output:
[xpress jpsierra] readprob /tmp/problema_antes_mipoptimize.mps.lp
Reading Problem problema_antes_mipoptimize.mps
Problem Statistics
32 ( 0 spare) rows
158 ( 0 spare) structural columns
242 ( 0 spare) non-zero elements
MIP Entity Statistics
5 entities 0 sets 0 set members
[xpress jpsierra] mipoptimize
FICO Xpress v9.0.2, Hyper, solve started 9:03:26, Mar 30, 2023
Heap usage: 409KB (peak 601KB, 130KB system)
Maximizing MILP problema_antes_mipoptimize.mps using 1 thread and up to 125GB memory, with default controls
Original problem has:
32 rows 158 cols 242 elements 5 entities
Presolved problem has:
25 rows 85 cols 145 elements 5 entities
LP relaxation tightened
Presolve finished in 0 seconds
Heap usage: 461KB (peak 601KB, 130KB system)
Coefficient range original solved
Coefficients [min,max] : [ 1.34e-02, 1.43e+02] / [ 6.25e-02, 2.00e+00]
RHS and bounds [min,max] : [ 4.37e-10, 8.21e+07] / [ 1.66e-09, 4.12e+02]
Objective [min,max] : [ 1.00e-02, 4.36e+05] / [ 3.20e+00, 1.45e+06]
Autoscaling applied standard scaling
Will try to keep branch and bound tree memory usage below 118.9GB
Its Obj Value S Ninf Nneg Sum Dual Inf Time
0 1240117.979 D 11 0 .000000 0
25 -4868744.855 D 0 0 .000000 0
Optimal solution found
Dual solved problem
25 simplex iterations in 0.00 seconds at time 0
Final objective : -4.868744854550569e+06
Max primal violation (abs/rel) : 0.0 / 0.0
Max dual violation (abs/rel) : 0.0 / 0.0
Max complementarity viol. (abs/rel) : 0.0 / 0.0
Starting root cutting & heuristics
Its Type BestSoln BestBound Sols Add Del Gap GInf Time
c -4951199.318 -4868744.855 1 1.67% 0 0
d -4947818.410 -4868744.855 2 1.60% 0 0
1 K -4947818.410 -4946084.252 2 27 0 0.04% 5 0
*** Search completed ***
Uncrunching matrix
Final MIP objective : -4.947818410385440e+06
Final MIP bound : -4.947813541640585e+06
Solution time / primaldual integral : 0.00s/ 68.381709%
Number of solutions found / nodes : 2 / 1
Max primal violation (abs/rel) : 1.990e-13 / 2.842e-14
Max integer violation (abs ) : 0.0Related Content
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