Hi, Any guru has the solution to output ranging files for the MAC? I can not get my ranging report output to the cplex.opt. Here is the code I used:
model Invest /all/;
$onecho > cplex.opt
objrng all
rhsrng all
$offecho
Invest.OptFile=1;
solve Invest using lp maximizing z;
The cplex.opt only has two lines:
objrng all
rhsrng all
Here follows the log, it seems all right.
Reading parameter(s) from "/Users/cplex.opt"
>> objrng all
>> rhsrng all
Finished reading from "/Users/ypeng/Downloads/SMU/EMIS8378/Homework3/cplex.opt"
Reading data...
Starting Cplex...
Space for names approximately 0.00 Mb
Use option 'names no' to turn use of names off
CPXPARAM_Advance 0
CPXPARAM_Simplex_Display 2
CPXPARAM_Simplex_Limits_Iterations 2000000000
CPXPARAM_TimeLimit 1000
CPXPARAM_Threads 1
CPXPARAM_Parallel 1
CPXPARAM_Tune_TimeLimit 200
Tried aggregator 1 time.
LP Presolve eliminated 6 rows and 1 columns.
Reduced LP has 3 rows, 8 columns, and 14 nonzeros.
Presolve time = 0.00 sec. (0.00 ticks)
Initializing dual steep norms . . .
Iteration Dual Objective In Variable Out Variable
1 I 0.000000 y(1978) cf77 artif
2 1797600.000000 x(E) y(1978)
LP status(1): optimal
Cplex Time: 0.00sec (det. 0.01 ticks)
Optimal solution found.
Objective : 1797600.000000
RHS ranging...
Objective ranging...
--- Restarting execution
--- Mitchell.gms(66) 2 Mb
--- Reading solution for model Invest
*** Status: Normal completion
--- Job Mitchell.gms Stop 09/13/18 15:53:43 elapsed 0:00:00.108
Ranging report output to the cplex.opt
Re: Ranging report output to the cplex.opt
From the GAMS/Cplex docs (https://www.gams.com/latest/docs/S_CPLE ... PLEXobjrng): Range information will be printed to the beginning of the solution listing in the GAMS listing file unless option RngRestart is specified. Check your Mitchell.lst file. This should have a section after the solution report that ought to look similar to this:
-Michael
Code: Select all
EQUATION NAME LOWER CURRENT UPPER
------------- ----- ------- -----
cost -INF 0 +INF
supply(seattle) 300 350 625
supply(san-diego) 550 600 +INF
demand(new-york) 50 325 375
demand(chicago) 25 300 350
demand(topeka) 0 275 325
VARIABLE NAME LOWER CURRENT UPPER
------------- ----- ------- -----
x(seattle, new-york) 0.216 0.225 0.225
x(seattle, chicago) 0 0.153 0.162
x(seattle, topeka) 0.126 0.162 +INF
x(san-diego, new-york) 0.225 0.225 0.234
x(san-diego, chicago) 0.153 0.162 +INF
x(san-diego, topeka) 0 0.126 0.162
z -INF 1 +INF