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some recent updates of GAMS/SHOT link #181

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some recent updates of GAMS/SHOT link #181

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e1510da
adjust to changed meaning of threads=0
svigerske Jul 16, 2025
1afd6f3
additional QExtract options
svigerske Jul 16, 2025
5a41678
handle GAMS license files with 7 or 8 lines
svigerske Jul 16, 2025
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20 changes: 19 additions & 1 deletion src/ModelingSystem/ModelingSystemGAMS.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -104,6 +104,13 @@ void ModelingSystemGAMS::augmentSettings([[maybe_unused]] SettingsPtr settings)
#endif
settings->createSetting("GAMS.QExtractAlg", "ModelingSystem", 0,
"Extraction algorithm for quadratic equations in GAMS interface", enumQExtractAlg);

#if GMOAPIVERSION >= 28
settings->createSetting("GAMS.QExtractDenseSwitchFactor", "ModelingSystem", 0.008,
"Sparse/dense factor for quadratic extraction algorithm in GAMS interface.", 0.0);
settings->createSetting("GAMS.QExtractDenseSwitchLog", "ModelingSystem", false,
"Whether to print additional information about sparse/dense factor choice in quadratic extraction algorithm in GAMS interface.");
#endif
#endif
}

Expand Down Expand Up @@ -175,7 +182,12 @@ void ModelingSystemGAMS::updateSettings(SettingsPtr settings)
}

// Sets the number of threads
env->settings->updateSetting("MIP.NumberOfThreads", "Dual", gevThreads(modelingEnvironment));
// gevThreadsRaw >= 0 from GAMS have the same meaning in SHOT
// for gevThreadsRaw < 0, use gevThreads() to translate to number of processors to use
int nthreads = gevGetIntOpt(modelingEnvironment, gevThreadsRaw);
if( nthreads < 0 )
nthreads = gevThreads(modelingEnvironment);
env->settings->updateSetting("MIP.NumberOfThreads", "Dual", nthreads);
env->output->outputDebug(fmt::format(
" MIP number of threads set to {} by GAMS", env->settings->getSetting<int>("MIP.NumberOfThreads", "Dual")));

Expand Down Expand Up @@ -283,6 +295,10 @@ E_ProblemCreationStatus ModelingSystemGAMS::createProblem(ProblemPtr& problem)
#if GMOAPIVERSION >= 21
int qextractalg = env->settings->getSetting<int>("GAMS.QExtractAlg", "ModelingSystem");
gmoQExtractAlgSet(modelingObject, qextractalg);
#endif
#if GMOAPIVERSION >= 28
gmoQExtractDenseSwitchFactorSet(modelingObject, env->settings->getSetting<double>("GAMS.QExtractDenseSwitchFactor", "ModelingSystem"));
gmoQExtractDenseSwitchLogSet(modelingObject, (int)env->settings->getSetting<bool>("GAMS.QExtractDenseSwitchLog", "ModelingSystem"));
#endif
gmoUseQSet(modelingObject, 1);
#if GMOAPIVERSION >= 25
Expand Down Expand Up @@ -602,6 +618,8 @@ void ModelingSystemGAMS::createAuditLicensing()
palLicenseRegisterGAMS(auditLicensing, 4, gevGetStrOpt(modelingEnvironment, "License4", buf));
palLicenseRegisterGAMS(auditLicensing, 5, gevGetStrOpt(modelingEnvironment, "License5", buf));
palLicenseRegisterGAMS(auditLicensing, 6, gevGetStrOpt(modelingEnvironment, "License6", buf));
palLicenseRegisterGAMS(auditLicensing, 7, gevGetStrOpt(modelingEnvironment, "License7", buf));
palLicenseRegisterGAMS(auditLicensing, 8, gevGetStrOpt(modelingEnvironment, "License8", buf));
palLicenseRegisterGAMSDone(auditLicensing);

palLicenseCheck(auditLicensing, gmoM(modelingObject), gmoN(modelingObject), gmoNZ(modelingObject),
Expand Down
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