scen02.gms : Execution time test for the scenario facility

Description

The early implementation of GUSS had subtle side effects. Therefore,
the GAMS compiler and runtime enforces strict rules for the use of
GUSS. This test collects a number of these runtime tests.

Contributor: Michael Bussieck


Small Model of Type : GAMS


Category : GAMS Test library


Main file : scen02.gms

$title Execution time test for Gather-Update-Solve-Scatter (GUSS) (SCEN02, SEQ=518)

$ontext
The early implementation of GUSS had subtle side effects. Therefore,
the GAMS compiler and runtime enforces strict rules for the use of
GUSS. This test collects a number of these runtime tests.

Contributor: Michael Bussieck

$offtext


$call gamslib -q trnsport
$if errorlevel 1 $abort 'could not retrieve trnsport.gms'

$onechoV >> trnsport.gms
set s          /s1*s3/,
    s1(s)
    s2(s,s)
    dict1      / s1.  scenario. '', c.param.cs1  /
    dict2      / s2.  scenario. '', c.param.cs2  /
    dict3      / s2.  scenario. '', c.param.cs2, a.param.as  /
    dict4      / s2.  scenario. '', c.param.cs2, ''.opt.srep /
    dummy      / SolveStat /
    ma         / ModelStat /;

Parameter
    cs1(s,i,j), cs2(s,s,i,j), as(s,s,i), srep(s,s,ma)
    updt1(s,*,*,i,j), updt2(s,s,*,*,i,j), updt3(s,s,*,*,*,*)
    pdict1     / s1.  scenario. '' 1, c.param.cs1  3/
    pdict2     / s2.  scenario. '' 2, c.param.cs2  4/
    pdict3     / s2.  scenario. '' 2, c.param.cs2  4, a.param.as 3 /;

option lp=convertd;
alias (s,sp);

s1(s) = yes;
cs1(s1(s),i,j) = ord(s);
Solve transport using lp minimizing z scenario dict1;
updt1(s1,'c','param',i,j) = cs1(s1,i,j);
execute_unload 'dict1.gdx' pdict1=dict, s1, updt1=updt;
execute 'gdxdiff dict1.gdx "%gams.scrdir%scenario_dict1.%gams.scrext%" > %system.nullfile%'
abort$errorlevel 'dict1.gdx and scenario_dict1.gdx should be identical';

s2(s,'s1') = yes;
cs2(s2(s,sp),i,j) = ord(sp) + card(s)*(ord(s)-1);
Solve transport using lp minimizing z scenario dict2;
updt2(s2,'c','param',i,j) = cs2(s2,i,j);
execute_unload 'dict2a.gdx' pdict2=dict, s2, updt2=updt;
execute 'gdxdiff dict2a.gdx "%gams.scrdir%scenario_dict2.%gams.scrext%" > %system.nullfile%'
abort$errorlevel 'dict2a.gdx and scenario_dict2.gdx should be identical';

option clear=s2, clear=cs2, clear=updt2;
s2('s1',s) = yes;
cs2(s2(s,sp),i,j) = ord(sp) + card(s)*(ord(s)-1);
Solve transport using lp minimizing z scenario dict2;
updt2(s2,'c','param',i,j) = cs2(s2,i,j);
execute_unload 'dict2b.gdx' pdict2=dict, s2, updt2=updt;
execute 'gdxdiff dict2b.gdx "%gams.scrdir%scenario_dict2.%gams.scrext%" > %system.nullfile%'
abort$errorlevel 'dict2b.gdx and scenario_dict2.gdx should be identical';


option clear=s2, clear=cs2;
s2(s,sp) = yes;
cs2(s2(s,sp),i,j) = ord(sp) + card(s)*(ord(s)-1);
as(s,'s1',i) = ord(s) + 100*ord(i);
Solve transport using lp minimizing z scenario dict3;

updt3(s2,'c','param',i,j) = cs2(s2,i,j);
updt3(s2,'a','param','',i) = as(s2,i);
execute_unload 'dict3.gdx' pdict3=dict, s2, updt3=updt;
execute 'gdxdiff dict3.gdx "%gams.scrdir%scenario_dict3.%gams.scrext%" > %system.nullfile%'
abort$errorlevel 'dict3.gdx and scenario_dict3.gdx should be identical';

* test with an empty scenario set
option clear=s2, clear=cs2, clear=updt2;
s2(s,s) = no;
cs2(s2,i,j) = 1;
Solve transport using lp minimizing z scenario dict2;
abort$(not execerror) 'empty scenario set should trigger an execution error';
execerror=0;

* test with an empty scenario data
option clear=s2, clear=cs2, clear=updt2;
s2(s,s) = yes;
cs2(s2,i,j) = 0;
Solve transport using lp minimizing z scenario dict2;
abort$(not execerror) 'empty update data should trigger an execution error';
execerror=0;

* Data cs2 has scenarios not in s2
option clear=s2, clear=cs2, clear=updt2;
s2('s1','s1') = yes;
cs2(s,'s1',i,j) = ord(s);
Solve transport using lp minimizing z scenario dict2;
updt2(s2,'c','param',i,j) = cs2(s2,i,j);
execute_unload 'dict2c.gdx' pdict2=dict, s2, updt2=updt;
execute 'gdxdiff dict2c.gdx "%gams.scrdir%scenario_dict2.%gams.scrext%" > %system.nullfile%'
abort$errorlevel 'dict2c.gdx and scenario_dict2.gdx should be identical';

* Uel SolveStat should not enter srep;
option clear=s2, clear=cs2;
s2(s,sp) = yes;
cs2(s2(s,sp),i,j) = ord(sp) + card(s)*(ord(s)-1);
as(s,'s1',i) = ord(s) + 100*ord(i);
Solve transport using lp minimizing z scenario dict4;
abort$(card(s2)<>card(srep)) 'srep should only have ModelStat, not SolveStat', srep;

$offecho

$call "gams trnsport lo=%gams.lo% execerr=100"
$if errorlevel 1 $abort 'Test failed. Please inspect trnsport.lst for details'