FICO Xpress Optimization Examples Repository: In-memory data exchange

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In-memory data exchange

Description

ugiocb.java: Exchanging data between model and host application. Callbacks for exchanging data: sparse data, string indices (requires burglar13.mos)
ugiodense.java: Exchanging data between model and host application. Dense data (requires burglar8.mos)
ugioscalar.java: Exchanging data between model and host application. Scalars (requires burglar11.mos)
ugiosparse.java: Exchanging data between model and host application. Sparse data, string indices (requires burglar9.mos)
ugstreamdense.java: Exchanging data between model and host application using Java streams. Dense data (requires burglar8s.mos)
ugstreamsparse.java: Exchanging data between model and host application using Java streams. Sparse data, string indices (requires burglar9s.mos)
ugstreamdensescrmt.java: Exchanging data between a remote model (started from another model that acts as intermediate) and a Java host application using Java streams. Dense data (requires runburglar8sdc.mos and burglar8sdc.mos)

ugiojava.zip

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Source Files

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ugiocb.java	[download]
ugiodense.java	[download]
ugioscalar.java	[download]
ugiosparse.java	[download]
ugstreamdense.java	[download]
ugstreamsparse.java	[download]
ugstreamdensescrmt.java	[download]
burglar13.mos	[download]
burglar11.mos	[download]
burglar8.mos	[download]
burglar8s.mos	[download]
runburglar8sdc.mos	[download]
burglar8sdc.mos	[download]
burglar9.mos	[download]
burglar9s.mos	[download]

burglar8sdc.mos

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

   file burglar8sdc.mos
   ````````````````````
   Model as in burglar.mos, with data input/ouput
   from/to calling application through Java streams.

   *** Not intended to be run standalone - run from ugstreamdensescrmt.java ***
   
   (c) 2008 Fair Isaac Corporation
       author: S. Heipcke, July 2008
*******************************************************!)

model Burglar8
 uses "mmxprs"

 parameters
  VDATA = ''; WDATA = ''         ! Location of input data
  SOL = ''                       ! Location for solution data output
  OBJVAL = ''                    ! Location for objective value output
  WTMAX = 10                     ! Maximum weight allowed
 end-parameters
  
 declarations
  ITEMS = 1..8                   ! Index range for items
  
  VALUE: array(ITEMS) of real    ! Value of items
  WEIGHT: array(ITEMS) of real   ! Weight of items
  
  take: array(ITEMS) of mpvar    ! 1 if we take item i; 0 otherwise
  soltake: array(ITEMS) of real  ! Solution values
 end-declarations

 initializations from 'raw:noalign,noindex'
  VALUE as VDATA  WEIGHT as WDATA
 end-initializations


! 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  

 setparam("XPRS_VERBOSE",true)
 maximize(MaxVal)                 ! Solve the MIP-problem

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

 initializations to 'raw:noalign,noindex'
  soltake as SOL
 end-initializations

 initializations to OBJVAL
  evaluation of getobjval as 'objval'
 end-initializations

end-model