FICO Xpress Optimization Examples Repository: In-memory data exchange

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In-memory data exchange

Description

ugiocb.c: Exchanging data between model and host application. Callbacks for exchanging data: sparse data, string indices (requires burglar13.mos)
ugiodense.c: Exchanging data between model and host application. Dense data (requires burglar6.mos)
ugioscalar.c: Exchanging data between model and host application. Scalars (requires burglar12.mos)
ugiosparse.c: Exchanging data between model and host application. Sparse data, string indices (requires burglar7.mos)

ugioc.zip

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Source Files

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ugiocb.c	[download]
ugiodense.c	[download]
ugioscalar.c	[download]
ugiosparse.c	[download]
burglar13.mos	[download]
burglar6.mos	[download]
burglar12.mos	[download]
burglar7.mos	[download]

burglar7.mos

(!******************************************************
   Mosel User Guide Example Problems
   ================================= 

   file burglar7.mos
   `````````````````
   Same as burglar2.mos, with input from/output to
   calling application.

   *** Not intended to be run standalone - run from ugiosparse.c ***
   
   (c) 2008 Fair Isaac Corporation
       author: S. Heipcke, Mar. 2006
*******************************************************!)

model Burglar7
 uses "mmxprs"
 
 parameters
  DATA = ''                        ! Location of input data
  SOL = ''                         ! Location for solution data output
  WTMAX = 102                      ! Maximum weight allowed
 end-parameters

 declarations
  ITEMS: set of string             ! Index set for items
  VALUE: array(ITEMS) of real      ! Value of items
  WEIGHT: array(ITEMS) of real     ! Weight of items
  soltake: array(ITEMS) of real    ! Solution values
 end-declarations

 initializations from 'raw:'
  [VALUE,WEIGHT] as DATA
 end-initializations

 declarations
  take: array(ITEMS) of mpvar      ! 1 if we take item i; 0 otherwise
 end-declarations

! Objective: maximize total value
 MaxVal:= sum(i in ITEMS) VALUE(i)*take(i) 

! Weight restriction
 sum(i in ITEMS) WEIGHT(i)*take(i) <= WTMAX

! All variables are 0/1
 forall(i in ITEMS) take(i) is_binary  

 maximize(MaxVal)                  ! Solve the MIP-problem

! Output solution to calling application
 forall(i in ITEMS) soltake(i):= getsol(take(i))

 initializations to 'raw:'
  soltake as SOL
 end-initializations

end-model