sp
/
tempest
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity
Browse Source

GurobiLpSolver: Fixed rounding of integral results.

tempestpy_adaptions
Tim Quatmann 6 years ago
parent
9780ffeb1e
commit
b357868a32
1 changed files with 15 additions and 12 deletions
Whitespace
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
Split View
Diff Options
Show Stats Download Patch File Download Diff File
  1. 27
      src/storm/solver/GurobiLpSolver.cpp

27
src/storm/solver/GurobiLpSolver.cpp
View File

@ -86,6 +86,9 @@ namespace storm {
// Enable the following line to force Gurobi to be as precise about the binary variables as required by the given precision option.
error = GRBsetdblparam(env, "IntFeasTol", storm::settings::getModule<storm::settings::modules::GurobiSettings>().getIntegerTolerance());
STORM_LOG_THROW(error == 0, storm::exceptions::InvalidStateException, "Unable to set Gurobi Parameter IntFeasTol (" << GRBgeterrormsg(env) << ", error code " << error << ").");
// error = GRBsetintparam(env, "NumericFocus", 3);
// STORM_LOG_THROW(error == 0, storm::exceptions::InvalidStateException, "Unable to set Gurobi Parameter NumericFocus (" << GRBgeterrormsg(env) << ", error code " << error << ").");
}
template<typename ValueType>
@ -342,9 +345,9 @@ namespace storm {
double value = 0;
int error = GRBgetdblattrelement(model, GRB_DBL_ATTR_X, variableIndexPair->second, &value);
STORM_LOG_THROW(error == 0, storm::exceptions::InvalidStateException, "Unable to get Gurobi solution (" << GRBgeterrormsg(env) << ", error code " << error << ").");
STORM_LOG_THROW(std::abs(static_cast<int>(value) - value) <= storm::settings::getModule<storm::settings::modules::GurobiSettings>().getIntegerTolerance(), storm::exceptions::InvalidStateException, "Illegal value for integer variable in Gurobi solution (" << value << ").");
STORM_LOG_THROW(std::abs(std::round(value) - value) <= storm::settings::getModule<storm::settings::modules::GurobiSettings>().getIntegerTolerance(), storm::exceptions::InvalidStateException, "Illegal value for integer variable in Gurobi solution (" << value << ").");
return static_cast<int_fast64_t>(value);
return static_cast<int_fast64_t>(std::round(value));
}
template<typename ValueType>
@ -363,12 +366,12 @@ namespace storm {
STORM_LOG_THROW(error == 0, storm::exceptions::InvalidStateException, "Unable to get Gurobi solution (" << GRBgeterrormsg(env) << ", error code " << error << ").");
if (value > 0.5) {
STORM_LOG_THROW(std::abs(static_cast<int>(value) - 1) <= storm::settings::getModule<storm::settings::modules::GurobiSettings>().getIntegerTolerance(), storm::exceptions::InvalidStateException, "Illegal value for integer variable in Gurobi solution (" << value << ").");
STORM_LOG_THROW(std::abs(value - 1.0) <= storm::settings::getModule<storm::settings::modules::GurobiSettings>().getIntegerTolerance(), storm::exceptions::InvalidStateException, "Illegal value for integer variable in Gurobi solution (" << value << ").");
return true;
} else {
STORM_LOG_THROW(value <= storm::settings::getModule<storm::settings::modules::GurobiSettings>().getIntegerTolerance(), storm::exceptions::InvalidStateException, "Illegal value for integer variable in Gurobi solution (" << value << ").");
STORM_LOG_THROW(std::abs(value) <= storm::settings::getModule<storm::settings::modules::GurobiSettings>().getIntegerTolerance(), storm::exceptions::InvalidStateException, "Illegal value for integer variable in Gurobi solution (" << value << ").");
return false;
}
return static_cast<bool>(value);
}
template<typename ValueType>
@ -496,9 +499,9 @@ namespace storm {
STORM_LOG_THROW(error == 0, storm::exceptions::InvalidStateException, "Unable to set Gurobi solution index (" << GRBgeterrormsg(env) << ", error code " << error << ").");
error = GRBgetdblattrelement(model, GRB_DBL_ATTR_Xn, variableIndexPair->second, &value);
STORM_LOG_THROW(error == 0, storm::exceptions::InvalidStateException, "Unable to get Gurobi solution (" << GRBgeterrormsg(env) << ", error code " << error << ").");
STORM_LOG_THROW(std::abs(static_cast<int>(value) - value) <= storm::settings::getModule<storm::settings::modules::GurobiSettings>().getIntegerTolerance(), storm::exceptions::InvalidStateException, "Illegal value for integer variable in Gurobi solution (" << value << ").");
STORM_LOG_THROW(std::abs(std::round(value) - value) <= storm::settings::getModule<storm::settings::modules::GurobiSettings>().getIntegerTolerance(), storm::exceptions::InvalidStateException, "Illegal value for integer variable in Gurobi solution (" << value << ").");
return static_cast<int_fast64_t>(value);
return static_cast<int_fast64_t>(std::round(value));
}
template<typename ValueType>
@ -520,12 +523,12 @@ namespace storm {
STORM_LOG_THROW(error == 0, storm::exceptions::InvalidStateException, "Unable to get Gurobi solution (" << GRBgeterrormsg(env) << ", error code " << error << ").");
if (value > 0.5) {
STORM_LOG_THROW(std::abs(static_cast<int>(value) - 1) <= storm::settings::getModule<storm::settings::modules::GurobiSettings>().getIntegerTolerance(), storm::exceptions::InvalidStateException, "Illegal value for integer variable in Gurobi solution (" << value << ").");
STORM_LOG_THROW(std::abs(value - 1) <= storm::settings::getModule<storm::settings::modules::GurobiSettings>().getIntegerTolerance(), storm::exceptions::InvalidStateException, "Illegal value for integer variable in Gurobi solution (" << value << ").");
return true;
} else {
STORM_LOG_THROW(value <= storm::settings::getModule<storm::settings::modules::GurobiSettings>().getIntegerTolerance(), storm::exceptions::InvalidStateException, "Illegal value for integer variable in Gurobi solution (" << value << ").");
STORM_LOG_THROW(std::abs(value) <= storm::settings::getModule<storm::settings::modules::GurobiSettings>().getIntegerTolerance(), storm::exceptions::InvalidStateException, "Illegal value for integer variable in Gurobi solution (" << value << ").");
return false;
}
return static_cast<bool>(value);
}
template<typename ValueType>

Write Preview
Loading…
Cancel
Save