GAMS — The Solver Manuals - Available Software

MPSWRITE 413
place. For example, when running under Windows 95 we could add a solver called ANALYZE that uses the same
settings as MPSWRITE in the appropriate GAMS configuration file. The new ANALYZE script then could look
as follows.
@echo off
: gmsan\_95.bat: Command Line Interface for Win 95
echo * ANALYZE defaults > analyze.opt
echo nametyp 2 >> analyze.opt
echo namewid 16 >> analyze.opt
echo dobas 0 >> analyze.opt
echo domap 2 >> analyze.opt
echo domps 2 >> analyze.opt
echo textopt 1 >> analyze.opt
echo * MPSWRITE Option >> analyze.opt
: append mpswrite options
if exist mpswrite.opt copy analyze.opt + mpswrite.opt analyze.opt
gmsmp\_nx.exe %4
if exist analyze.opt del analyze.opt
:
echo LOAD GAMS > profile.exc
echo WRITE GAMS >> profile.exc
echo QUIT >> profile.exc
:lprename > lprename.out
LPRENAME
:
echo $ ============ > profile.exc
echo $ GAMS/ANALYZE >> profile.exc
echo $ ============ >> profile.exc
echo READIN PAC GAMS >> profile.exc
echo READIN SYN GAMS >> profile.exc
echo SUMMARY >> profile.exc
echo $ >> profile.exc
echo RETURN >> profile.exc
if not exist credits.doc goto ok
: need to remove credits to prevent early prompt
if exist credits.hld delete credits.hld
rename credits.doc credits.hld
:ok
ANALYZE
Note that LPRENAME and ANALYZE are assumed to be accessible through the path or can be found in the
current directory. If this is not the case, you has to enter the appropriate path to the script file above. Also note
the use of the ANALYZE profile feature. The profile.exc file is executed only after the credits have been processed.
The only way to avoid having to respond with Y/N to ANALYZE questions interactively is the renaming of the
credits.doc file. If no credits.doc file is found by ANALYZE, it will immediately look for a profile.exc file and
execute the commands included in this file.
Let us return to the [TRNSPORT] example and call ANALYZE after we have computed an optimal solution as
follows:
solve
option
solve
transport using lp minimizing cost;
lp=analayze;
transport using lp minimizing cost;
The second solve statement will generate the appropriate input files for ANALYZE and load the problem into
the analyze workspace. Not that ANALYZE has recognized that the model is optimal and the model is ready to
be inspected using ANALYZE commands as shown below: