/*! \fn performSimulation(DATA* data, SOLVER_INFO* solverInfo)
*
* \param [ref] [data]
* \param [ref] [solverInfo]
*
* This function performs the simulation controlled by solverInfo.
*/
int prefixedName_performSimulation(DATA* data, threadData_t *threadData, SOLVER_INFO* solverInfo)
{
TRACE_PUSH
int retValIntegrator=0;
int retValue=0;
int i, retry=0;
unsigned int __currStepNo = 0;
SIMULATION_INFO *simInfo = &(data->simulationInfo);
solverInfo->currentTime = simInfo->startTime;
MEASURE_TIME fmt;
fmtInit(data, &fmt);
printAllVarsDebug(data, 0, LOG_DEBUG); /* ??? */
printSparseStructure(data, LOG_SOLVER);
modelica_boolean syncStep = 0;
/***** Start main simulation loop *****/
while(solverInfo->currentTime < simInfo->stopTime)
{
int success = 0;
threadData->currentErrorStage = ERROR_SIMULATION;
#ifdef USE_DEBUG_TRACE
if(useStream[LOG_TRACE])
printf("TRACE: push loop step=%u, time=%.12g\n", __currStepNo, solverInfo->currentTime);
#endif
omc_alloc_interface.collect_a_little();
/* try */
#if !defined(OMC_EMCC)
MMC_TRY_INTERNAL(simulationJumpBuffer)
#endif
{
clear_rt_step(data);
rotateRingBuffer(data->simulationData, 1, (void**) data->localData);
modelica_boolean syncEventStep = solverInfo->didEventStep || syncStep;
/***** Calculation next step size *****/
if(syncEventStep)
{
infoStreamPrint(LOG_SOLVER, 0, "offset value for the next step: %.16g", (solverInfo->currentTime - solverInfo->laststep));
}
else
{
if (solverInfo->solverNoEquidistantGrid)
{
if (solverInfo->currentTime >= solverInfo->lastdesiredStep)
{
double tmpTime = solverInfo->currentTime;
do
{
__currStepNo++;
solverInfo->currentStepSize = (double)(__currStepNo*(simInfo->stopTime-simInfo->startTime))/(simInfo->numSteps) + simInfo->startTime - solverInfo->currentTime;
}while(solverInfo->currentStepSize <= 0);
}
}
else
{
__currStepNo++;
}
}
solverInfo->currentStepSize = (double)(__currStepNo*(simInfo->stopTime-simInfo->startTime))/(simInfo->numSteps) + simInfo->startTime - solverInfo->currentTime;
solverInfo->lastdesiredStep = solverInfo->currentTime + solverInfo->currentStepSize;
/* if retry reduce stepsize */
if(0 != retry)
{
solverInfo->currentStepSize /= 2;
}
/***** End calculation next step size *****/
checkForSynchronous(data, solverInfo);
/* check for next time event */
checkForSampleEvent(data, solverInfo);
/* if regular output point and last time events are almost equals
* skip that step and go further */
if (solverInfo->currentStepSize < 1e-15 && syncEventStep){
__currStepNo++;
continue;
}
/*
* integration step determine all states by a integration method
* update continuous system
*/
retValIntegrator = simulationStep(data, threadData, solverInfo);
if (S_OPTIMIZATION == solverInfo->solverMethod) break;
syncStep = simulationUpdate(data, threadData, solverInfo);
retry = 0; /* reset retry */
fmtEmitStep(data, threadData, &fmt, solverInfo->didEventStep);
saveDasslStats(solverInfo);
checkSimulationTerminated(data, solverInfo);
/* terminate for some cases:
* - integrator fails
* - non-linear system failed to solve
* - assert was called
*/
if(retValIntegrator)
{
retValue = -1 + retValIntegrator;
infoStreamPrint(LOG_STDOUT, 0, "model terminate | Integrator failed. | Simulation terminated at time %g", solverInfo->currentTime);
break;
}
else if(check_nonlinear_solutions(data, 0))
{
retValue = -2;
infoStreamPrint(LOG_STDOUT, 0, "model terminate | non-linear system solver failed. | Simulation terminated at time %g", solverInfo->currentTime);
break;
}
else if(check_linear_solutions(data, 0))
{
retValue = -3;
infoStreamPrint(LOG_STDOUT, 0, "model terminate | linear system solver failed. | Simulation terminated at time %g", solverInfo->currentTime);
break;
}
else if(check_mixed_solutions(data, 0))
{
retValue = -4;
infoStreamPrint(LOG_STDOUT, 0, "model terminate | mixed system solver failed. | Simulation terminated at time %g", solverInfo->currentTime);
break;
}
success = 1;
}
#if !defined(OMC_EMCC)
MMC_CATCH_INTERNAL(simulationJumpBuffer)
#endif
if (!success) /* catch */
{
if(0 == retry)
{
retrySimulationStep(data, threadData, solverInfo);
retry = 1;
}
else
{
retValue = -1;
infoStreamPrint(LOG_STDOUT, 0, "model terminate | Simulation terminated by an assert at time: %g", data->localData[0]->timeValue);
break;
}
}
TRACE_POP /* pop loop */
} /* end while solver */
fmtClose(&fmt);
TRACE_POP
return retValue;
}
/*! \fn performSimulation(DATA* data, SOLVER_INFO* solverInfo)
*
* \param [ref] [data]
* \param [ref] [solverInfo]
*
* This function performs the simulation controlled by solverInfo.
*/
int prefixedName_performSimulation(DATA* data, threadData_t *threadData, SOLVER_INFO* solverInfo)
{
TRACE_PUSH
int retValIntegrator=0;
int retValue=0;
int i, retry=0, steadStateReached=0;
unsigned int __currStepNo = 0;
SIMULATION_INFO *simInfo = data->simulationInfo;
solverInfo->currentTime = simInfo->startTime;
MEASURE_TIME fmt;
fmtInit(data, &fmt);
printAllVarsDebug(data, 0, LOG_DEBUG); /* ??? */
if (!compiledInDAEMode)
{
printSparseStructure(&(data->simulationInfo->analyticJacobians[data->callback->INDEX_JAC_A].sparsePattern),
data->simulationInfo->analyticJacobians[data->callback->INDEX_JAC_A].sizeRows,
data->simulationInfo->analyticJacobians[data->callback->INDEX_JAC_A].sizeCols,
LOG_SOLVER, "ODE sparse pattern");
}
else
{
printSparseStructure(data->simulationInfo->daeModeData->sparsePattern,
data->simulationInfo->daeModeData->nResidualVars,
data->simulationInfo->daeModeData->nResidualVars,
LOG_SOLVER, "DAE sparse pattern");
}
if(terminationTerminate)
{
printInfo(stdout, TermInfo);
fputc('\n', stdout);
infoStreamPrint(LOG_STDOUT, 0, "Simulation call terminate() at initialization (time %f)\nMessage : %s", data->localData[0]->timeValue, TermMsg);
data->simulationInfo->stopTime = solverInfo->currentTime;
} else {
modelica_boolean syncStep = 0;
/***** Start main simulation loop *****/
while(solverInfo->currentTime < simInfo->stopTime || !simInfo->useStopTime)
{
int success = 0;
threadData->currentErrorStage = ERROR_SIMULATION;
#ifdef USE_DEBUG_TRACE
if(useStream[LOG_TRACE]) {
printf("TRACE: push loop step=%u, time=%.12g\n", __currStepNo, solverInfo->currentTime);
}
#endif
/* check for steady state */
if (omc_flag[FLAG_STEADY_STATE])
{
if (0 < data->modelData->nStates)
{
int i;
double maxDer = 0.0;
double currDer;
for(i=data->modelData->nStates; i<2*data->modelData->nStates; ++i)
{
currDer = fabs(data->localData[0]->realVars[i] / data->modelData->realVarsData[i].attribute.nominal);
if(maxDer < currDer)
maxDer = currDer;
}
if (maxDer < steadyStateTol) {
steadStateReached=1;
infoStreamPrint(LOG_STDOUT, 0, "steady state reached at time = %g\n * max(|d(x_i)/dt|/nominal(x_i)) = %g\n * relative tolerance = %g", solverInfo->currentTime, maxDer, steadyStateTol);
break;
}
}
else
throwStreamPrint(threadData, "No states in model. Flag -steadyState can only be used if states are present.");
}
omc_alloc_interface.collect_a_little();
/* try */
#if !defined(OMC_EMCC)
MMC_TRY_INTERNAL(simulationJumpBuffer)
#endif
{
printAllVars(data, 0, LOG_SOLVER_V);
clear_rt_step(data);
if (!compiledInDAEMode) /* do not use ringbuffer for daeMode */
rotateRingBuffer(data->simulationData, 1, (void**) data->localData);
modelica_boolean syncEventStep = solverInfo->didEventStep || syncStep;
/***** Calculation next step size *****/
if(syncEventStep) {
infoStreamPrint(LOG_SOLVER, 0, "offset value for the next step: %.16g", (solverInfo->currentTime - solverInfo->laststep));
} else {
if (solverInfo->solverNoEquidistantGrid)
{
if (solverInfo->currentTime >= solverInfo->lastdesiredStep)
{
do {
__currStepNo++;
solverInfo->currentStepSize = (double)(__currStepNo*(simInfo->stopTime-simInfo->startTime))/(simInfo->numSteps) + simInfo->startTime - solverInfo->currentTime;
} while(solverInfo->currentStepSize <= 0);
}
} else {
__currStepNo++;
}
}
solverInfo->currentStepSize = (double)(__currStepNo*(simInfo->stopTime-simInfo->startTime))/(simInfo->numSteps) + simInfo->startTime - solverInfo->currentTime;
solverInfo->lastdesiredStep = solverInfo->currentTime + solverInfo->currentStepSize;
/* if retry reduce stepsize */
if (0 != retry) {
solverInfo->currentStepSize /= 2;
}
/***** End calculation next step size *****/
checkForSynchronous(data, solverInfo);
/* check for next time event */
checkForSampleEvent(data, solverInfo);
/* if regular output point and last time events are almost equals
* skip that step and go further */
if (solverInfo->currentStepSize < 1e-15 && syncEventStep){
__currStepNo++;
continue;
}
/*
* integration step determine all states by a integration method
* update continuous system
*/
infoStreamPrint(LOG_SOLVER, 1, "call solver from %g to %g (stepSize: %.15g)", solverInfo->currentTime, solverInfo->currentTime + solverInfo->currentStepSize, solverInfo->currentStepSize);
retValIntegrator = simulationStep(data, threadData, solverInfo);
infoStreamPrint(LOG_SOLVER, 0, "finished solver step %g", solverInfo->currentTime);
messageClose(LOG_SOLVER);
if (S_OPTIMIZATION == solverInfo->solverMethod) break;
syncStep = simulationUpdate(data, threadData, solverInfo);
retry = 0; /* reset retry */
fmtEmitStep(data, threadData, &fmt, solverInfo);
saveIntegratorStats(solverInfo);
checkSimulationTerminated(data, solverInfo);
/* terminate for some cases:
* - integrator fails
* - non-linear system failed to solve
* - assert was called
*/
if (retValIntegrator) {
retValue = -1 + retValIntegrator;
infoStreamPrint(LOG_STDOUT, 0, "model terminate | Integrator failed. | Simulation terminated at time %g", solverInfo->currentTime);
break;
} else if(check_nonlinear_solutions(data, 0)) {
retValue = -2;
infoStreamPrint(LOG_STDOUT, 0, "model terminate | non-linear system solver failed. | Simulation terminated at time %g", solverInfo->currentTime);
break;
} else if(check_linear_solutions(data, 0)) {
retValue = -3;
infoStreamPrint(LOG_STDOUT, 0, "model terminate | linear system solver failed. | Simulation terminated at time %g", solverInfo->currentTime);
break;
} else if(check_mixed_solutions(data, 0)) {
retValue = -4;
infoStreamPrint(LOG_STDOUT, 0, "model terminate | mixed system solver failed. | Simulation terminated at time %g", solverInfo->currentTime);
break;
}
success = 1;
}
#if !defined(OMC_EMCC)
MMC_CATCH_INTERNAL(simulationJumpBuffer)
#endif
if (!success) { /* catch */
if(0 == retry) {
retrySimulationStep(data, threadData, solverInfo);
retry = 1;
} else {
retValue = -1;
infoStreamPrint(LOG_STDOUT, 0, "model terminate | Simulation terminated by an assert at time: %g", data->localData[0]->timeValue);
break;
}
}
TRACE_POP /* pop loop */
} /* end while solver */
} /* end else */
fmtClose(&fmt);
if (omc_flag[FLAG_STEADY_STATE] && !steadStateReached) {
warningStreamPrint(LOG_STDOUT, 0, "Steady state has not been reached.\nThis may be due to too restrictive relative tolerance (%g) or short stopTime (%g).", steadyStateTol, simInfo->stopTime);
}
TRACE_POP
return retValue;
}