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solver:dicopt_illegal_row_type [2007/04/05 20:06]
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-====== Dicopt: Illegal row type ====== 
- ​Q: ​ 
-// I receive this following error, when running my MINLP with DICOPT.// 
-<​code>​ 
--------------------------------------------- 
  
-               S O L V E      S U M M A R Y 
- 
-     ​MODEL ​  ​rlp ​                ​OBJECTIVE ​ zobjR 
-     ​TYPE ​   MINLP               ​DIRECTION ​ MINIMIZE 
-     ​SOLVER ​ DICOPT ​             FROM LINE  314 
- 
-**** SOLVER STATUS ​    ERROR SYSTEM FAILURE 
-**** MODEL STATUS ​     ERROR NO SOLUTION 
-**** OBJECTIVE VALUE               NA 
- 
- ​RESOURCE USAGE, LIMIT         ​NA ​         1000.000 
- ​ITERATION COUNT, LIMIT        NA         10000 
- ​EVALUATION ERRORS ​            ​NA ​            0 
- 
-No solution returned 
- 
-**** SOLVER STATUS FILE LISTED BELOW 
-=0 Dicopt2x-C ​   Apr  1, 2005 LNX.DI.NA 21.7 039.031.041.LXI 
-=0 Dicopt2x-C ​   Apr  1, 2005 LNX.DI.DI 21.7 039.031.041.LXI 
- 
-*** Illegal row type 
-</​code>​ 
- 
-The current version of DICOPT does not like ''​=n=''​ rows.  
-This can also happen, when you have a model with a ''​lhs =l= inf''​ - statement. ​ GAMS sends it to DICOPT an =n= row out of it so DICOPT sees the ''​=n=''​ row and complains about it. \\ 
-Dicopt also does not understand cone equations (''​=c=''​) and older version of Dicopt did not understand external equations (''​=x=''​). 
- 
-If you just want to exclude certain constraints from a model, you may: 
-  * Comment them in the source 
-  * exclude them from your ''​model ''​ - statement. 
-  * Have a runtime switch that turns off a block of equations:<​code>​ 
-equation e(i); 
-scalar do_e /1/; e(i)$do_e.. sum(j,​x(i,​j)) =e= 0; 
-... 
-do_e=0; solve m using minlp min z; 
-</​code>​ 
IMPRESSUM / LEGAL NOTICEPRIVACY POLICY solver/dicopt_illegal_row_type.1175796410.txt.gz ยท Last modified: 2007/04/05 20:06 by 127.0.0.1