int main(int argc,char **argv)
{
TAO_SOLVER tao; /* TAO_SOLVER solver context */
Rosenbrock *rose;
double *x;
int i,n, info; /* error code */
/* Initialize TAO */
// info=PetscInitialize(&argc,&argv,(char *)0,help); CHKERRQ(info);
info=TaoInitialize(&argc,&argv,(char *)0,help); CHKERRQ(info);
info = TaoCreate(MPI_COMM_SELF,"tao_lmvm",&tao); CHKERRQ(info);
rose = new Rosenbrock();
info = TaoSetApplication(tao,rose); CHKERRQ(info);
info = TaoSetFromOptions(tao);CHKERRQ(info);
info = TaoSolve(tao); CHKERRQ(info);
/* Print Solution */
info = rose->GetSolution(x, n); CHKERRQ(info);
printf("\nSolution: ");
for (i=0; i<n; i++){ printf(" %7.4e ",x[i]); }
printf("\n");
/* Free data structures */
info = TaoDestroy(tao); CHKERRQ(info);
info = TaoDestroyApplication(rose); CHKERRQ(info);
/* Finalize TAO */
info = TaoFinalize(); CHKERRQ(info);
// info = PetscFinalize(); CHKERRQ(info);
return 0;
}
int main(int argc,char **argv)
{
PetscErrorCode ierr; /* used to check for functions returning nonzeros */
PetscReal zero=0.0;
Vec x; /* solution vector */
Mat H;
Tao tao; /* Tao solver context */
PetscBool flg;
PetscMPIInt size,rank; /* number of processes running */
AppCtx user; /* user-defined application context */
/* Initialize TAO and PETSc */
PetscInitialize(&argc,&argv,(char*)0,help);
ierr = MPI_Comm_size(PETSC_COMM_WORLD,&size);CHKERRQ(ierr);
ierr = MPI_Comm_rank(PETSC_COMM_WORLD,&rank);CHKERRQ(ierr);
if (size >1) SETERRQ(PETSC_COMM_SELF,1,"Incorrect number of processors");
/* Initialize problem parameters */
user.n = 2; user.alpha = 99.0;
/* Check for command line arguments to override defaults */
ierr = PetscOptionsGetInt(NULL,NULL,"-n",&user.n,&flg);CHKERRQ(ierr);
ierr = PetscOptionsGetReal(NULL,NULL,"-alpha",&user.alpha,&flg);CHKERRQ(ierr);
/* Allocate vectors for the solution and gradient */
ierr = VecCreateSeq(PETSC_COMM_SELF,user.n,&x);CHKERRQ(ierr);
ierr = MatCreateSeqBAIJ(PETSC_COMM_SELF,2,user.n,user.n,1,NULL,&H);CHKERRQ(ierr);
/* The TAO code begins here */
/* Create TAO solver with desired solution method */
ierr = TaoCreate(PETSC_COMM_SELF,&tao);CHKERRQ(ierr);
ierr = TaoSetType(tao,TAOLMVM);CHKERRQ(ierr);
/* Set solution vec and an initial guess */
ierr = VecSet(x, zero);CHKERRQ(ierr);
ierr = TaoSetInitialVector(tao,x);CHKERRQ(ierr);
/* Set routines for function, gradient, hessian evaluation */
ierr = TaoSetObjectiveAndGradientRoutine(tao,FormFunctionGradient,&user);CHKERRQ(ierr);
ierr = TaoSetHessianRoutine(tao,H,H,FormHessian,&user);CHKERRQ(ierr);
/* Check for TAO command line options */
ierr = TaoSetFromOptions(tao);CHKERRQ(ierr);
/* SOLVE THE APPLICATION */
ierr = TaoSolve(tao);CHKERRQ(ierr);
ierr = TaoDestroy(&tao);CHKERRQ(ierr);
ierr = VecDestroy(&x);CHKERRQ(ierr);
ierr = MatDestroy(&H);CHKERRQ(ierr);
PetscFinalize();
return 0;
}
int main(int argc,char **argv)
{
PetscErrorCode ierr; /* used to check for functions returning nonzeros */
Vec x, f; /* solution, function */
Mat J; /* Jacobian matrix */
Tao tao; /* Tao solver context */
PetscInt i; /* iteration information */
PetscReal hist[100],resid[100];
PetscInt lits[100];
AppCtx user; /* user-defined work context */
PetscInitialize(&argc,&argv,(char *)0,help);
/* Allocate vectors */
ierr = VecCreateSeq(MPI_COMM_SELF,NPARAMETERS,&x);CHKERRQ(ierr);
ierr = VecCreateSeq(MPI_COMM_SELF,NOBSERVATIONS,&f);CHKERRQ(ierr);
/* Create the Jacobian matrix. */
ierr = MatCreateSeqDense(MPI_COMM_SELF,NOBSERVATIONS,NPARAMETERS,NULL,&J);CHKERRQ(ierr);
for (i=0;i<NOBSERVATIONS;i++) user.idm[i] = i;
for (i=0;i<NPARAMETERS;i++) user.idn[i] = i;
/* Create TAO solver and set desired solution method */
ierr = TaoCreate(PETSC_COMM_SELF,&tao);CHKERRQ(ierr);
ierr = TaoSetType(tao,TAOPOUNDERS);CHKERRQ(ierr);
/* Set the function and Jacobian routines. */
ierr = InitializeData(&user);CHKERRQ(ierr);
ierr = FormStartingPoint(x);CHKERRQ(ierr);
ierr = TaoSetInitialVector(tao,x);CHKERRQ(ierr);
ierr = TaoSetSeparableObjectiveRoutine(tao,f,EvaluateFunction,(void*)&user);CHKERRQ(ierr);
ierr = TaoSetJacobianRoutine(tao, J, J, EvaluateJacobian, (void*)&user);CHKERRQ(ierr);
/* Check for any TAO command line arguments */
ierr = TaoSetFromOptions(tao);CHKERRQ(ierr);
ierr = TaoSetConvergenceHistory(tao,hist,resid,0,lits,100,PETSC_TRUE);CHKERRQ(ierr);
/* Perform the Solve */
ierr = TaoSolve(tao);CHKERRQ(ierr);
ierr = TaoView(tao,PETSC_VIEWER_STDOUT_SELF);CHKERRQ(ierr);
/* Free TAO data structures */
ierr = TaoDestroy(&tao);CHKERRQ(ierr);
/* Free PETSc data structures */
ierr = VecDestroy(&x);CHKERRQ(ierr);
ierr = VecDestroy(&f);CHKERRQ(ierr);
ierr = MatDestroy(&J);CHKERRQ(ierr);
PetscFinalize();
return 0;
}
void TaoOptimizationSolver<T>::init ()
{
// Initialize the data structures if not done so already.
if (!this->initialized())
{
this->_is_initialized = true;
PetscErrorCode ierr=0;
ierr = TaoCreate(this->comm().get(),&_tao);
LIBMESH_CHKERR(ierr);
}
}
int main(int argc,char **argv)
{
PetscErrorCode ierr; /* used to check for functions returning nonzeros */
Vec x, f; /* solution, function */
Tao tao; /* Tao solver context */
AppCtx user; /* user-defined work context */
/* Initialize TAO and PETSc */
PetscInitialize(&argc,&argv,(char *)0,help);
MPI_Comm_size(MPI_COMM_WORLD,&user.size);
MPI_Comm_rank(MPI_COMM_WORLD,&user.rank);
ierr = InitializeData(&user);CHKERRQ(ierr);
/* Run optimization on rank 0 */
if (user.rank == 0) {
/* Allocate vectors */
ierr = VecCreateSeq(PETSC_COMM_SELF,NPARAMETERS,&x);CHKERRQ(ierr);
ierr = VecCreateSeq(PETSC_COMM_SELF,NOBSERVATIONS,&f);CHKERRQ(ierr);
/* TAO code begins here */
/* Create TAO solver and set desired solution method */
ierr = TaoCreate(PETSC_COMM_SELF,&tao);CHKERRQ(ierr);
ierr = TaoSetType(tao,TAOPOUNDERS);CHKERRQ(ierr);
/* Set the function and Jacobian routines. */
ierr = FormStartingPoint(x);CHKERRQ(ierr);
ierr = TaoSetInitialVector(tao,x);CHKERRQ(ierr);
ierr = TaoSetSeparableObjectiveRoutine(tao,f,EvaluateFunction,(void*)&user);CHKERRQ(ierr);
/* Check for any TAO command line arguments */
ierr = TaoSetFromOptions(tao);CHKERRQ(ierr);
/* Perform the Solve */
ierr = TaoSolve(tao);CHKERRQ(ierr);
/* Free TAO data structures */
ierr = TaoDestroy(&tao);CHKERRQ(ierr);
/* Free PETSc data structures */
ierr = VecDestroy(&x);CHKERRQ(ierr);
ierr = VecDestroy(&f);CHKERRQ(ierr);
StopWorkers(&user);
} else {
TaskWorker(&user);
}
PetscFinalize();
return 0;
}
static PetscErrorCode TaoPounders(AppCtx *user)
{
PetscErrorCode ierr;
Tao tao;
Vec X, F;
Mat J;
char buf[1024];
PetscFunctionBegin;
/* Set the values for the algorithm options we want to use */
sprintf(buf,"%d",user->nfmax);
ierr = PetscOptionsSetValue(NULL,"-tao_max_funcs",buf);CHKERRQ(ierr);
sprintf(buf,"%d",user->npmax);
ierr = PetscOptionsSetValue(NULL,"-tao_pounders_npmax",buf);CHKERRQ(ierr);
sprintf(buf,"%5.4e",user->delta);
ierr = PetscOptionsSetValue(NULL,"-tao_pounders_delta",buf);CHKERRQ(ierr);
/* Create the TAO objects and set the type */
ierr = TaoCreate(PETSC_COMM_SELF,&tao);CHKERRQ(ierr);
/* Create starting point and initialize */
ierr = VecCreateSeq(PETSC_COMM_SELF,user->n,&X);CHKERRQ(ierr);
ierr = PetscObjectSetName((PetscObject)X,"X0");CHKERRQ(ierr);
ierr = PetscMatlabEngineGet(user->mengine,(PetscObject)X);CHKERRQ(ierr);
ierr = TaoSetInitialVector(tao,X);CHKERRQ(ierr);
/* Create residuals vector and set residual function */
ierr = VecCreateSeq(PETSC_COMM_SELF,user->m,&F);CHKERRQ(ierr);
ierr = PetscObjectSetName((PetscObject)F,"F");CHKERRQ(ierr);
ierr = TaoSetResidualRoutine(tao,F,EvaluateResidual,(void*)user);CHKERRQ(ierr);
/* Create Jacobian matrix and set residual Jacobian routine */
ierr = MatCreateSeqAIJ(PETSC_COMM_SELF,user->m,user->n,user->n,NULL,&J);CHKERRQ(ierr);
ierr = PetscObjectSetName((PetscObject)J,"J");CHKERRQ(ierr);
ierr = TaoSetResidualJacobianRoutine(tao,J,J,EvaluateJacobian,(void*)user);CHKERRQ(ierr);
/* Solve the problem */
ierr = TaoSetType(tao,TAOPOUNDERS);CHKERRQ(ierr);
ierr = TaoSetFromOptions(tao);CHKERRQ(ierr);
ierr = TaoSolve(tao);CHKERRQ(ierr);
/* Finish the problem */
ierr = VecDestroy(&X);CHKERRQ(ierr);
ierr = VecDestroy(&F);CHKERRQ(ierr);
ierr = TaoDestroy(&tao);CHKERRQ(ierr);
PetscFunctionReturn(0);
}
int main(int argc,char **argv)
{
PetscErrorCode ierr; /* used to check for functions returning nonzeros */
Vec x; /* solution vector */
Mat H; /* Hessian matrix */
Tao tao; /* Tao context */
AppCtx user; /* user-defined application context */
ierr = PetscInitialize(&argc,&argv,(char*)0,0);if (ierr) return ierr;
/* Initialize problem parameters */
user.n = 2; user.alpha = 99.0;
/* Allocate vectors for the solution and gradient */
ierr = VecCreateSeq(PETSC_COMM_SELF,user.n,&x); CHKERRQ(ierr);
ierr = MatCreateSeqBAIJ(PETSC_COMM_SELF,2,user.n,user.n,1,NULL,&H);
/* Create TAO solver with desired solution method */
ierr = TaoCreate(PETSC_COMM_SELF,&tao); CHKERRQ(ierr);
ierr = TaoSetType(tao,TAOLMVM); CHKERRQ(ierr);
/* Set solution vec and an initial guess */
ierr = VecSet(x, 0); CHKERRQ(ierr);
ierr = TaoSetInitialVector(tao,x); CHKERRQ(ierr);
/* Set routines for function, gradient, hessian evaluation */
ierr = TaoSetObjectiveAndGradientRoutine(tao,FormFunctionGradient,&user);
ierr = TaoSetHessianRoutine(tao,H,H,FormHessian,&user); CHKERRQ(ierr);
/* Check for TAO command line options */
ierr = TaoSetFromOptions(tao); CHKERRQ(ierr);
/* Solve the application */
ierr = TaoSolve(tao); CHKERRQ(ierr);
/* Free data structures */
ierr = TaoDestroy(&tao); CHKERRQ(ierr);
ierr = VecDestroy(&x); CHKERRQ(ierr);
ierr = MatDestroy(&H); CHKERRQ(ierr);
ierr = PetscFinalize();
return ierr;
}
PetscErrorCode main(int argc,char **argv)
{
PetscErrorCode ierr; /* used to check for functions returning nonzeros */
PetscMPIInt size;
Vec x; /* solution */
KSP ksp;
PC pc;
Vec ceq,cin;
PetscBool flg; /* A return value when checking for use options */
Tao tao; /* Tao solver context */
TaoConvergedReason reason;
AppCtx user; /* application context */
/* Initialize TAO,PETSc */
ierr = PetscInitialize(&argc,&argv,(char *)0,help);CHKERRQ(ierr);
ierr = MPI_Comm_size(PETSC_COMM_WORLD,&size);CHKERRQ(ierr);
/* Specify default parameters for the problem, check for command-line overrides */
ierr = PetscStrncpy(user.name,"HS21",8);CHKERRQ(ierr);
ierr = PetscOptionsGetString(NULL,NULL,"-cutername",user.name,24,&flg);CHKERRQ(ierr);
ierr = PetscPrintf(PETSC_COMM_WORLD,"\n---- MAROS Problem %s -----\n",user.name);CHKERRQ(ierr);
ierr = InitializeProblem(&user);CHKERRQ(ierr);
ierr = VecDuplicate(user.d,&x);CHKERRQ(ierr);
ierr = VecDuplicate(user.beq,&ceq);CHKERRQ(ierr);
ierr = VecDuplicate(user.bin,&cin);CHKERRQ(ierr);
ierr = VecSet(x,1.0);CHKERRQ(ierr);
ierr = TaoCreate(PETSC_COMM_WORLD,&tao);CHKERRQ(ierr);
ierr = TaoSetType(tao,TAOIPM);CHKERRQ(ierr);
ierr = TaoSetInitialVector(tao,x);CHKERRQ(ierr);
ierr = TaoSetObjectiveAndGradientRoutine(tao,FormFunctionGradient,(void*)&user);CHKERRQ(ierr);
ierr = TaoSetEqualityConstraintsRoutine(tao,ceq,FormEqualityConstraints,(void*)&user);CHKERRQ(ierr);
ierr = TaoSetInequalityConstraintsRoutine(tao,cin,FormInequalityConstraints,(void*)&user);CHKERRQ(ierr);
ierr = TaoSetInequalityBounds(tao,user.bin,NULL);CHKERRQ(ierr);
ierr = TaoSetJacobianEqualityRoutine(tao,user.Aeq,user.Aeq,FormEqualityJacobian,(void*)&user);CHKERRQ(ierr);
ierr = TaoSetJacobianInequalityRoutine(tao,user.Ain,user.Ain,FormInequalityJacobian,(void*)&user);CHKERRQ(ierr);
ierr = TaoSetHessianRoutine(tao,user.H,user.H,FormHessian,(void*)&user);CHKERRQ(ierr);
ierr = TaoGetKSP(tao,&ksp);CHKERRQ(ierr);
ierr = KSPGetPC(ksp,&pc);CHKERRQ(ierr);
ierr = PCSetType(pc,PCLU);CHKERRQ(ierr);
/*
This algorithm produces matrices with zeros along the diagonal therefore we need to use
SuperLU which does partial pivoting
*/
ierr = PCFactorSetMatSolverPackage(pc,MATSOLVERSUPERLU);CHKERRQ(ierr);
ierr = KSPSetType(ksp,KSPPREONLY);CHKERRQ(ierr);
ierr = TaoSetTolerances(tao,0,0,0);CHKERRQ(ierr);
ierr = TaoSetFromOptions(tao);CHKERRQ(ierr);
ierr = TaoSolve(tao);CHKERRQ(ierr);
ierr = TaoGetConvergedReason(tao,&reason);CHKERRQ(ierr);
if (reason < 0) {
ierr = PetscPrintf(MPI_COMM_WORLD, "TAO failed to converge due to %s.\n",TaoConvergedReasons[reason]);CHKERRQ(ierr);
} else {
ierr = PetscPrintf(MPI_COMM_WORLD, "Optimization completed with status %s.\n",TaoConvergedReasons[reason]);CHKERRQ(ierr);
}
ierr = DestroyProblem(&user);CHKERRQ(ierr);
ierr = VecDestroy(&x);CHKERRQ(ierr);
ierr = VecDestroy(&ceq);CHKERRQ(ierr);
ierr = VecDestroy(&cin);CHKERRQ(ierr);
ierr = TaoDestroy(&tao);CHKERRQ(ierr);
ierr = PetscFinalize();
return ierr;
}
int main(int argc,char **argv)
{
Vec p;
PetscScalar *x_ptr;
PetscErrorCode ierr;
PetscMPIInt size;
AppCtx ctx;
Vec lowerb,upperb;
Tao tao;
TaoConvergedReason reason;
KSP ksp;
PC pc;
/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Initialize program
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
PetscInitialize(&argc,&argv,NULL,help);
PetscFunctionBeginUser;
ierr = MPI_Comm_size(PETSC_COMM_WORLD,&size);CHKERRQ(ierr);
if (size != 1) SETERRQ(PETSC_COMM_SELF,1,"This is a uniprocessor example only!");
/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Set runtime options
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
ierr = PetscOptionsBegin(PETSC_COMM_WORLD,NULL,"Swing equation options","");CHKERRQ(ierr);
{
ctx.beta = 2;
ctx.c = 10000.0;
ctx.u_s = 1.0;
ctx.omega_s = 1.0;
ctx.omega_b = 120.0*PETSC_PI;
ctx.H = 5.0;
ierr = PetscOptionsScalar("-Inertia","","",ctx.H,&ctx.H,NULL);CHKERRQ(ierr);
ctx.D = 5.0;
ierr = PetscOptionsScalar("-D","","",ctx.D,&ctx.D,NULL);CHKERRQ(ierr);
ctx.E = 1.1378;
ctx.V = 1.0;
ctx.X = 0.545;
ctx.Pmax = ctx.E*ctx.V/ctx.X;;
ierr = PetscOptionsScalar("-Pmax","","",ctx.Pmax,&ctx.Pmax,NULL);CHKERRQ(ierr);
ctx.Pm = 0.4;
ierr = PetscOptionsScalar("-Pm","","",ctx.Pm,&ctx.Pm,NULL);CHKERRQ(ierr);
ctx.tf = 0.1;
ctx.tcl = 0.2;
ierr = PetscOptionsReal("-tf","Time to start fault","",ctx.tf,&ctx.tf,NULL);CHKERRQ(ierr);
ierr = PetscOptionsReal("-tcl","Time to end fault","",ctx.tcl,&ctx.tcl,NULL);CHKERRQ(ierr);
}
ierr = PetscOptionsEnd();CHKERRQ(ierr);
/* Create TAO solver and set desired solution method */
ierr = TaoCreate(PETSC_COMM_WORLD,&tao);CHKERRQ(ierr);
ierr = TaoSetType(tao,TAOBLMVM);CHKERRQ(ierr);
/*
Optimization starts
*/
/* Set initial solution guess */
ierr = VecCreateSeq(PETSC_COMM_WORLD,1,&p);CHKERRQ(ierr);
ierr = VecGetArray(p,&x_ptr);CHKERRQ(ierr);
x_ptr[0] = ctx.Pm;
ierr = VecRestoreArray(p,&x_ptr);CHKERRQ(ierr);
ierr = TaoSetInitialVector(tao,p);CHKERRQ(ierr);
/* Set routine for function and gradient evaluation */
ierr = TaoSetObjectiveRoutine(tao,FormFunction,(void *)&ctx);CHKERRQ(ierr);
ierr = TaoSetGradientRoutine(tao,TaoDefaultComputeGradient,(void *)&ctx);CHKERRQ(ierr);
/* Set bounds for the optimization */
ierr = VecDuplicate(p,&lowerb);CHKERRQ(ierr);
ierr = VecDuplicate(p,&upperb);CHKERRQ(ierr);
ierr = VecGetArray(lowerb,&x_ptr);CHKERRQ(ierr);
x_ptr[0] = 0.;
ierr = VecRestoreArray(lowerb,&x_ptr);CHKERRQ(ierr);
ierr = VecGetArray(upperb,&x_ptr);CHKERRQ(ierr);
x_ptr[0] = 1.1;;
ierr = VecRestoreArray(upperb,&x_ptr);CHKERRQ(ierr);
ierr = TaoSetVariableBounds(tao,lowerb,upperb);
/* Check for any TAO command line options */
ierr = TaoSetFromOptions(tao);CHKERRQ(ierr);
ierr = TaoGetKSP(tao,&ksp);CHKERRQ(ierr);
if (ksp) {
ierr = KSPGetPC(ksp,&pc);CHKERRQ(ierr);
ierr = PCSetType(pc,PCNONE);CHKERRQ(ierr);
}
ierr = TaoSetTolerances(tao,1e-15,1e-15,1e-15,1e-15,1e-15);
/* SOLVE THE APPLICATION */
ierr = TaoSolve(tao); CHKERRQ(ierr);
/* Get information on termination */
ierr = TaoGetConvergedReason(tao,&reason);CHKERRQ(ierr);
if (reason <= 0){
ierr=PetscPrintf(MPI_COMM_WORLD, "Try another method! \n");CHKERRQ(ierr);
}
ierr = VecView(p,PETSC_VIEWER_STDOUT_WORLD);CHKERRQ(ierr);
/* Free TAO data structures */
ierr = TaoDestroy(&tao);CHKERRQ(ierr);
ierr = VecDestroy(&p);CHKERRQ(ierr);
ierr = VecDestroy(&lowerb);CHKERRQ(ierr);
ierr = VecDestroy(&upperb);CHKERRQ(ierr);
ierr = PetscFinalize();
return 0;
}
int main(int argc,char **argv)
{
TS ts; /* nonlinear solver */
Vec ic;
PetscBool monitor = PETSC_FALSE;
PetscScalar *x_ptr;
PetscMPIInt size;
struct _n_User user;
PetscErrorCode ierr;
Tao tao;
TaoConvergedReason reason;
KSP ksp;
PC pc;
/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Initialize program
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
PetscInitialize(&argc,&argv,NULL,help);
ierr = MPI_Comm_size(PETSC_COMM_WORLD,&size);CHKERRQ(ierr);
if (size != 1) SETERRQ(PETSC_COMM_SELF,1,"This is a uniprocessor example only!");
/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Set runtime options
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
user.mu = 1.0;
user.next_output = 0.0;
user.steps = 0;
user.ftime = 0.5;
ierr = PetscOptionsGetReal(NULL,"-mu",&user.mu,NULL);CHKERRQ(ierr);
ierr = PetscOptionsGetBool(NULL,"-monitor",&monitor,NULL);CHKERRQ(ierr);
/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Create necessary matrix and vectors, solve same ODE on every process
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
ierr = MatCreate(PETSC_COMM_WORLD,&user.A);CHKERRQ(ierr);
ierr = MatSetSizes(user.A,PETSC_DECIDE,PETSC_DECIDE,2,2);CHKERRQ(ierr);
ierr = MatSetFromOptions(user.A);CHKERRQ(ierr);
ierr = MatSetUp(user.A);CHKERRQ(ierr);
ierr = MatCreateVecs(user.A,&user.x,NULL);CHKERRQ(ierr);
/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Create timestepping solver context
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
ierr = TSCreate(PETSC_COMM_WORLD,&ts);CHKERRQ(ierr);
ierr = TSSetType(ts,TSRK);CHKERRQ(ierr);
ierr = TSSetRHSFunction(ts,NULL,RHSFunction,&user);CHKERRQ(ierr);
ierr = TSSetDuration(ts,PETSC_DEFAULT,user.ftime);CHKERRQ(ierr);
ierr = TSSetExactFinalTime(ts,TS_EXACTFINALTIME_MATCHSTEP);CHKERRQ(ierr);
if (monitor) {
ierr = TSMonitorSet(ts,Monitor,&user,NULL);CHKERRQ(ierr);
}
/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Set initial conditions
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
ierr = VecGetArray(user.x,&x_ptr);CHKERRQ(ierr);
x_ptr[0] = 2.0; x_ptr[1] = 0.66666654321;
ierr = VecRestoreArray(user.x,&x_ptr);CHKERRQ(ierr);
ierr = TSSetTime(ts,0.0);CHKERRQ(ierr);
ierr = PetscPrintf(PETSC_COMM_WORLD,"mu %g, steps %D, ftime %g\n",(double)user.mu,user.steps,(double)(user.ftime));CHKERRQ(ierr);
/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Save trajectory of solution so that TSAdjointSolve() may be used
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
ierr = TSSetSaveTrajectory(ts);CHKERRQ(ierr);
/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Set runtime options
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
ierr = TSSetFromOptions(ts);CHKERRQ(ierr);
/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Solve nonlinear system
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
ierr = TSSolve(ts,user.x);CHKERRQ(ierr);
ierr = TSGetSolveTime(ts,&(user.ftime));CHKERRQ(ierr);
ierr = TSGetTimeStepNumber(ts,&user.steps);CHKERRQ(ierr);
ierr = PetscPrintf(PETSC_COMM_WORLD,"mu %g, steps %D, ftime %g\n",(double)user.mu,user.steps,(double)user.ftime);CHKERRQ(ierr);
ierr = VecGetArray(user.x,&x_ptr);CHKERRQ(ierr);
user.x_ob[0] = x_ptr[0];
user.x_ob[1] = x_ptr[1];
ierr = MatCreateVecs(user.A,&user.lambda[0],NULL);CHKERRQ(ierr);
/* Create TAO solver and set desired solution method */
ierr = TaoCreate(PETSC_COMM_WORLD,&tao);CHKERRQ(ierr);
ierr = TaoSetType(tao,TAOCG);CHKERRQ(ierr);
/* Set initial solution guess */
ierr = MatCreateVecs(user.A,&ic,NULL);CHKERRQ(ierr);
ierr = VecGetArray(ic,&x_ptr);CHKERRQ(ierr);
x_ptr[0] = 2.1;
x_ptr[1] = 0.7;
ierr = VecRestoreArray(ic,&x_ptr);CHKERRQ(ierr);
ierr = TaoSetInitialVector(tao,ic);CHKERRQ(ierr);
/* Set routine for function and gradient evaluation */
ierr = TaoSetObjectiveAndGradientRoutine(tao,FormFunctionGradient,(void *)&user);CHKERRQ(ierr);
/* Check for any TAO command line options */
ierr = TaoSetFromOptions(tao);CHKERRQ(ierr);
ierr = TaoGetKSP(tao,&ksp);CHKERRQ(ierr);
if (ksp) {
ierr = KSPGetPC(ksp,&pc);CHKERRQ(ierr);
ierr = PCSetType(pc,PCNONE);CHKERRQ(ierr);
}
ierr = TaoSetTolerances(tao,1e-10,1e-10,1e-10,PETSC_DEFAULT,PETSC_DEFAULT);
/* SOLVE THE APPLICATION */
ierr = TaoSolve(tao); CHKERRQ(ierr);
/* Get information on termination */
ierr = TaoGetConvergedReason(tao,&reason);CHKERRQ(ierr);
if (reason <= 0){
ierr=PetscPrintf(MPI_COMM_WORLD, "Try another method! \n");CHKERRQ(ierr);
}
/* Free TAO data structures */
ierr = TaoDestroy(&tao);CHKERRQ(ierr);
/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Free work space. All PETSc objects should be destroyed when they
are no longer needed.
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
ierr = MatDestroy(&user.A);CHKERRQ(ierr);
ierr = VecDestroy(&user.x);CHKERRQ(ierr);
ierr = VecDestroy(&user.lambda[0]);CHKERRQ(ierr);
ierr = TSDestroy(&ts);CHKERRQ(ierr);
ierr = VecDestroy(&ic);CHKERRQ(ierr);
ierr = PetscFinalize();
PetscFunctionReturn(0);
}
int main(int argc,char **argv)
{
Userctx user;
Vec p;
PetscScalar *x_ptr;
PetscErrorCode ierr;
PetscMPIInt size;
PetscInt i,numDataBuses;
KSP ksp;
PC pc;
Tao tao;
TaoConvergedReason reason;
Vec lowerb,upperb;
PetscViewer viewer;
PetscScalar *proj_vec;
//PetscLogDouble t0,t1;
/* time the inversion process */
//ierr = PetscGetTime(&t0);CHKERRQ(ierr);
ierr = PetscInitialize(&argc,&argv,"petscoptions",help);CHKERRQ(ierr);
PetscFunctionBeginUser;
ierr = MPI_Comm_size(PETSC_COMM_WORLD,&size);CHKERRQ(ierr);
if (size > 1) SETERRQ(PETSC_COMM_WORLD,PETSC_ERR_SUP,"Only for sequential runs");
ierr = ModelSetup(&user);CHKERRQ(ierr);
/* hard code the data projection here - for now assume data at all buses */
ierr = VecCreateSeq(PETSC_COMM_WORLD,nbus,&user.proj);CHKERRQ(ierr);
/*ierr = VecCreateSeq(PETSC_COMM_WORLD,4,&user.proj);CHKERRQ(ierr);*/
ierr = VecGetArray(user.proj,&proj_vec);CHKERRQ(ierr);
for(i=0; i<nbus; i++) {
proj_vec[i]=i;
}
srand( time(NULL) + rand () );
//VecView(user.proj, PETSC_VIEWER_STDOUT_WORLD);
/* -- 2 5 6 8 */
/* -- proj_vec[0]=1; proj_vec[1]=4; proj_vec[2]=5; proj_vec[3]=7; */
ierr = VecRestoreArray(user.proj,&proj_vec);CHKERRQ(ierr);
/* allocate/set the prior mean and its standard deviation */
ierr = PetscMalloc(3*sizeof(PetscScalar), &user.prior_mean);
ierr = PetscMalloc(3*sizeof(PetscScalar), &user.prior_stddev);
/*{23.64,6.4,3.01};*/
user.prior_mean[0] = 24.0;
user.prior_mean[1] = 6.0;
user.prior_mean[2] = 3.1;
for(i=0; i<3; i++) user.prior_stddev[i] = user.prior_mean[i]*user.prior_noise;
/* Create matrix to store solution */
if(user.saveSol) {
ierr = MatCreateSeqDense(PETSC_COMM_SELF,
user.neqs_pgrid+1,
(PetscInt) round((user.tfinal-user.t0)/user.dt+1),
NULL,
&user.Sol);
CHKERRQ(ierr);
}
printf("Num cols=%d\n", (PetscInt) round((user.tfinal-user.t0)/user.dt+1));
/* *********************************
* Generate/load observations
**********************************/
ierr = VecGetSize(user.proj, &numDataBuses);CHKERRQ(ierr);
/* Create matrix to save solutions at each time step */
ierr = MatCreateSeqDense(PETSC_COMM_SELF,
2*numDataBuses,
//(PetscInt) round((user.tfinal-user.tdisturb)/user.data_dt)+1,
(PetscInt) round((user.tfinal-user.trestore)/user.data_dt)+1,
NULL,
&user.obs);
CHKERRQ(ierr);
ierr = InitializeData(H0, &user, user.data_noise, user.data_dt);CHKERRQ(ierr);
if(0==strlen(user.loadObsFile)) {
/* save observations */
ierr = PetscViewerBinaryOpen(PETSC_COMM_SELF,"obs-perturbed.bin",FILE_MODE_WRITE,&viewer);CHKERRQ(ierr);
ierr = MatView(user.obs,viewer);CHKERRQ(ierr);
ierr = PetscViewerDestroy(&viewer);CHKERRQ(ierr);
printf("Observations generated.\n");
}
if(user.saveSol) {
ierr = PetscViewerBinaryOpen(PETSC_COMM_SELF,"out_pert.bin",FILE_MODE_WRITE,&viewer);CHKERRQ(ierr);
ierr = MatView(user.Sol,viewer);CHKERRQ(ierr);
ierr = PetscViewerDestroy(&viewer);CHKERRQ(ierr);
ierr = MatDestroy(&user.Sol);CHKERRQ(ierr);
CHKERRQ(ierr);
}
if(user.outputCov) {
printf("The diagonal of the data noise covariance matrix (%g absolute noise) is:\n", user.data_noise);
for(i=0; i<2*numDataBuses; i++) printf("%18.12f ", user.data_stddev[i]*user.data_stddev[i]); printf("\n");
printf("The prior mean is: ");
for(i=0; i<3; i++) printf("%18.12f ", user.prior_mean[i]); printf("\n");
printf("The diagonal of the prior covariance matrix (%g relative noise) is:\n", user.prior_noise);
for(i=0; i<3; i++) printf("%18.12f ", user.prior_stddev[i]*user.prior_stddev[i]); printf("\n");
goto finalize;
}
/* ***************************************
* Optimization phase
* ***************************************/
/* Create TAO solver and set desired solution method */
ierr = TaoCreate(PETSC_COMM_WORLD,&tao);CHKERRQ(ierr);
ierr = TaoSetType(tao,TAOBLMVM);CHKERRQ(ierr);
/*
Optimization starts
*/
printf("Starting optimization...\n");
/* PetscScalar H_disturb[3]= {25.,6.4,3.01}; New inertia (after tdisturb) to be estimated */
/* Set initial solution guess */
ierr = VecCreateSeq(PETSC_COMM_WORLD,3,&p);CHKERRQ(ierr);
ierr = VecGetArray(p,&x_ptr);CHKERRQ(ierr);
//x_ptr[0] = H0[0]; x_ptr[1] = H0[1]; x_ptr[2] = H0[2];
x_ptr[0] = H0[0]*1.1; x_ptr[1] = H0[1]*1.1; x_ptr[2] = H0[2]*1.1;
ierr = VecRestoreArray(p,&x_ptr);CHKERRQ(ierr);
ierr = TaoSetInitialVector(tao,p);CHKERRQ(ierr);
/* Set routine for function and gradient evaluation */
//ierr = TaoSetObjectiveRoutine(tao,FormFunction,(void *)&user);CHKERRQ(ierr);
//ierr = TaoSetGradientRoutine(tao,TaoDefaultComputeGradient,(void *)&user);CHKERRQ(ierr);
/* Sets the cost and gradient evaluation routine for minimization */
ierr = TaoSetObjectiveAndGradientRoutine(tao,FormFunctionGradient,&user);CHKERRQ(ierr);
/* Set bounds for the optimization */
ierr = VecDuplicate(p,&lowerb);CHKERRQ(ierr);
ierr = VecDuplicate(p,&upperb);CHKERRQ(ierr);
ierr = VecGetArray(lowerb,&x_ptr);CHKERRQ(ierr);
x_ptr[0] = 20.64; x_ptr[1] = 5.4; x_ptr[2] = 2.01;
ierr = VecRestoreArray(lowerb,&x_ptr);CHKERRQ(ierr);
ierr = VecGetArray(upperb,&x_ptr);CHKERRQ(ierr);
x_ptr[0] = 25.64; x_ptr[1] = 7.4; x_ptr[2] = 4.01;
ierr = VecRestoreArray(upperb,&x_ptr);CHKERRQ(ierr);
ierr = TaoSetVariableBounds(tao,lowerb,upperb);
/* Check for any TAO command line options */
ierr = TaoSetFromOptions(tao);CHKERRQ(ierr);
ierr = TaoGetKSP(tao,&ksp);CHKERRQ(ierr);
if (ksp) {
ierr = KSPGetPC(ksp,&pc);CHKERRQ(ierr);
ierr = PCSetType(pc,PCNONE);CHKERRQ(ierr);
}
//ierr = TaoSetTolerances(tao,1e-8,1e-6,1e-8,1e-6,1e-4);
ierr = TaoSetTolerances(tao,1e-8,1e-8,1e-8,1e-8,1e-6);
//ierr = TaoSetGradientTolerances(tao,1e-8, 1e-6, 1e-6);
/* SOLVE the estimation problem */
ierr = TaoSolve(tao); CHKERRQ(ierr);
/* Get information on termination */
printf("--- optimization done\n");
/* time the inversion process */
//ierr = PetscGetTime(&t1);CHKERRQ(ierr);
//printf("elapsed_time %f seconds\n", t1 - t0);
ierr = TaoGetConvergedReason(tao,&reason);CHKERRQ(ierr);
if (reason <= 0){
ierr=PetscPrintf(MPI_COMM_WORLD, "Try another method! \n");CHKERRQ(ierr);
}
/*ierr = VecView(p,PETSC_VIEWER_STDOUT_WORLD);CHKERRQ(ierr);*/
ierr = VecGetArray(p,&x_ptr);CHKERRQ(ierr);
printf("inertia-out: %.12f %.12f %.12f\n", x_ptr[0], x_ptr[1], x_ptr[2]);
ierr = VecRestoreArray(p,&x_ptr);CHKERRQ(ierr);
//ierr = EvaluateHessianFD(tao, p, &user);CHKERRQ(ierr);
/* Free TAO data structures */
ierr = TaoDestroy(&tao);CHKERRQ(ierr);
ierr = VecDestroy(&lowerb);CHKERRQ(ierr);
ierr = VecDestroy(&upperb);CHKERRQ(ierr);
finalize:
ierr = MatDestroy(&user.obs);CHKERRQ(ierr);
ierr = VecDestroy(&user.X0_disturb);CHKERRQ(ierr);
ierr = PetscFree(user.data_stddev);CHKERRQ(ierr);
PetscFree(user.prior_mean);
PetscFree(user.prior_stddev);
ierr = DMDestroy(&user.dmgen);CHKERRQ(ierr);
ierr = DMDestroy(&user.dmnet);CHKERRQ(ierr);
ierr = DMDestroy(&user.dmpgrid);CHKERRQ(ierr);
ierr = ISDestroy(&user.is_diff);CHKERRQ(ierr);
ierr = ISDestroy(&user.is_alg);CHKERRQ(ierr);
ierr = MatDestroy(&user.J);CHKERRQ(ierr);
ierr = MatDestroy(&user.Jacp);CHKERRQ(ierr);
ierr = MatDestroy(&user.Ybus);CHKERRQ(ierr);
ierr = VecDestroy(&user.V0);CHKERRQ(ierr);
ierr = VecDestroy(&p);CHKERRQ(ierr);
ierr = PetscFinalize();
return(0);
}
int main(int argc,char **argv)
{
Userctx user;
Vec p;
PetscScalar *x_ptr;
PetscErrorCode ierr;
PetscMPIInt size;
PetscInt i;
KSP ksp;
PC pc;
PetscInt *idx2;
Tao tao;
TaoConvergedReason reason;
Vec lowerb,upperb;
PetscFunctionBeginUser;
ierr = PetscInitialize(&argc,&argv,"petscoptions",help);CHKERRQ(ierr);
ierr = MPI_Comm_size(PETSC_COMM_WORLD,&size);CHKERRQ(ierr);
if (size > 1) SETERRQ(PETSC_COMM_WORLD,PETSC_ERR_SUP,"Only for sequential runs");
ierr = VecCreateSeq(PETSC_COMM_WORLD,1,&user.vec_q);CHKERRQ(ierr);
user.neqs_gen = 9*ngen; /* # eqs. for generator subsystem */
user.neqs_net = 2*nbus; /* # eqs. for network subsystem */
user.neqs_pgrid = user.neqs_gen + user.neqs_net;
/* Create indices for differential and algebraic equations */
ierr = PetscMalloc1(7*ngen,&idx2);CHKERRQ(ierr);
for (i=0; i<ngen; i++) {
idx2[7*i] = 9*i; idx2[7*i+1] = 9*i+1; idx2[7*i+2] = 9*i+2; idx2[7*i+3] = 9*i+3;
idx2[7*i+4] = 9*i+6; idx2[7*i+5] = 9*i+7; idx2[7*i+6] = 9*i+8;
}
ierr = ISCreateGeneral(PETSC_COMM_WORLD,7*ngen,idx2,PETSC_COPY_VALUES,&user.is_diff);CHKERRQ(ierr);
ierr = ISComplement(user.is_diff,0,user.neqs_pgrid,&user.is_alg);CHKERRQ(ierr);
ierr = PetscFree(idx2);CHKERRQ(ierr);
/* Set run time options */
ierr = PetscOptionsBegin(PETSC_COMM_WORLD,NULL,"Transient stability fault options","");CHKERRQ(ierr);
{
user.tfaulton = 1.0;
user.tfaultoff = 1.2;
user.Rfault = 0.0001;
user.faultbus = 8;
ierr = PetscOptionsReal("-tfaulton","","",user.tfaulton,&user.tfaulton,NULL);CHKERRQ(ierr);
ierr = PetscOptionsReal("-tfaultoff","","",user.tfaultoff,&user.tfaultoff,NULL);CHKERRQ(ierr);
ierr = PetscOptionsInt("-faultbus","","",user.faultbus,&user.faultbus,NULL);CHKERRQ(ierr);
user.t0 = 0.0;
user.tmax = 1.5;
ierr = PetscOptionsReal("-t0","","",user.t0,&user.t0,NULL);CHKERRQ(ierr);
ierr = PetscOptionsReal("-tmax","","",user.tmax,&user.tmax,NULL);CHKERRQ(ierr);
user.freq_u = 61.0;
user.freq_l = 59.0;
user.pow = 2;
ierr = PetscOptionsReal("-frequ","","",user.freq_u,&user.freq_u,NULL);CHKERRQ(ierr);
ierr = PetscOptionsReal("-freql","","",user.freq_l,&user.freq_l,NULL);CHKERRQ(ierr);
ierr = PetscOptionsInt("-pow","","",user.pow,&user.pow,NULL);CHKERRQ(ierr);
}
ierr = PetscOptionsEnd();CHKERRQ(ierr);
/* Create DMs for generator and network subsystems */
ierr = DMDACreate1d(PETSC_COMM_WORLD,DM_BOUNDARY_NONE,user.neqs_gen,1,1,NULL,&user.dmgen);CHKERRQ(ierr);
ierr = DMSetOptionsPrefix(user.dmgen,"dmgen_");CHKERRQ(ierr);
ierr = DMDACreate1d(PETSC_COMM_WORLD,DM_BOUNDARY_NONE,user.neqs_net,1,1,NULL,&user.dmnet);CHKERRQ(ierr);
ierr = DMSetOptionsPrefix(user.dmnet,"dmnet_");CHKERRQ(ierr);
/* Create a composite DM packer and add the two DMs */
ierr = DMCompositeCreate(PETSC_COMM_WORLD,&user.dmpgrid);CHKERRQ(ierr);
ierr = DMSetOptionsPrefix(user.dmpgrid,"pgrid_");CHKERRQ(ierr);
ierr = DMCompositeAddDM(user.dmpgrid,user.dmgen);CHKERRQ(ierr);
ierr = DMCompositeAddDM(user.dmpgrid,user.dmnet);CHKERRQ(ierr);
/* Create TAO solver and set desired solution method */
ierr = TaoCreate(PETSC_COMM_WORLD,&tao);CHKERRQ(ierr);
ierr = TaoSetType(tao,TAOBLMVM);CHKERRQ(ierr);
/*
Optimization starts
*/
/* Set initial solution guess */
ierr = VecCreateSeq(PETSC_COMM_WORLD,3,&p);CHKERRQ(ierr);
ierr = VecGetArray(p,&x_ptr);CHKERRQ(ierr);
x_ptr[0] = PG[0]; x_ptr[1] = PG[1]; x_ptr[2] = PG[2];
ierr = VecRestoreArray(p,&x_ptr);CHKERRQ(ierr);
ierr = TaoSetInitialVector(tao,p);CHKERRQ(ierr);
/* Set routine for function and gradient evaluation */
ierr = TaoSetObjectiveRoutine(tao,FormFunction,(void *)&user);CHKERRQ(ierr);
ierr = TaoSetGradientRoutine(tao,TaoDefaultComputeGradient,(void *)&user);CHKERRQ(ierr);
/* Set bounds for the optimization */
ierr = VecDuplicate(p,&lowerb);CHKERRQ(ierr);
ierr = VecDuplicate(p,&upperb);CHKERRQ(ierr);
ierr = VecGetArray(lowerb,&x_ptr);CHKERRQ(ierr);
x_ptr[0] = 0.5; x_ptr[1] = 0.5; x_ptr[2] = 0.5;
ierr = VecRestoreArray(lowerb,&x_ptr);CHKERRQ(ierr);
ierr = VecGetArray(upperb,&x_ptr);CHKERRQ(ierr);
x_ptr[0] = 2.0; x_ptr[1] = 2.0; x_ptr[2] = 2.0;
ierr = VecRestoreArray(upperb,&x_ptr);CHKERRQ(ierr);
ierr = TaoSetVariableBounds(tao,lowerb,upperb);
/* Check for any TAO command line options */
ierr = TaoSetFromOptions(tao);CHKERRQ(ierr);
ierr = TaoGetKSP(tao,&ksp);CHKERRQ(ierr);
if (ksp) {
ierr = KSPGetPC(ksp,&pc);CHKERRQ(ierr);
ierr = PCSetType(pc,PCNONE);CHKERRQ(ierr);
}
/* SOLVE THE APPLICATION */
ierr = TaoSolve(tao); CHKERRQ(ierr);
/* Get information on termination */
ierr = TaoGetConvergedReason(tao,&reason);CHKERRQ(ierr);
if (reason <= 0){
ierr=PetscPrintf(MPI_COMM_WORLD, "Try another method! \n");CHKERRQ(ierr);
}
ierr = VecView(p,PETSC_VIEWER_STDOUT_WORLD);CHKERRQ(ierr);
/* Free TAO data structures */
ierr = TaoDestroy(&tao);CHKERRQ(ierr);
ierr = VecDestroy(&user.vec_q);CHKERRQ(ierr);
ierr = VecDestroy(&lowerb);CHKERRQ(ierr);
ierr = VecDestroy(&upperb);CHKERRQ(ierr);
ierr = VecDestroy(&p);CHKERRQ(ierr);
ierr = DMDestroy(&user.dmgen);CHKERRQ(ierr);
ierr = DMDestroy(&user.dmnet);CHKERRQ(ierr);
ierr = DMDestroy(&user.dmpgrid);CHKERRQ(ierr);
ierr = ISDestroy(&user.is_diff);CHKERRQ(ierr);
ierr = ISDestroy(&user.is_alg);CHKERRQ(ierr);
ierr = PetscFinalize();
return(0);
}
int main(int argc,char **argv)
{
int info; /* used to check for functions returning nonzeros */
Vec x, f; /* solution, function */
Mat J; /* Jacobian of constraints function */
TAO_SOLVER tao; /* TAO_SOLVER solver context */
TAO_APPLICATION taoapp; /* the PETSc application */
int* matarray;
TaoMethod method = "tao_nlsq"; /* minimization method */
int i;
AppCtx user; /* application context */
/* Initialize TAO and PETSc */
PetscInitialize(&argc,&argv,(char *)0,help);
TaoInitialize(&argc,&argv,(char *)0,help);
/* Initialize application data -- user function */
info = AppCtxInitialize(&user); CHKERRQ(info);
/* Allocate vectors */
info = VecCreateSeq(MPI_COMM_SELF,user.nvar,&x); CHKERRQ(info);
info = VecCreateSeq(MPI_COMM_SELF,user.ncnst,&f); CHKERRQ(info);
/* Create Jacobian matrix */
info = PetscMalloc(sizeof(int)*user.ncnst, (void*) &matarray);CHKERRQ(info);
for(i=0; i< user.mdiv2;i++){
matarray[i]=6; matarray[i+user.mdiv2]=1;
}
info = MatCreateSeqAIJ(MPI_COMM_WORLD,user.ncnst,user.nvar,TAO_NULL,matarray,&J);
CHKERRQ(info);
/* TAO code begins here */
/* Create TAO solver */
info = TaoCreate(MPI_COMM_SELF,method,&tao);CHKERRQ(info);
info = TaoPetscApplicationCreate(PETSC_COMM_SELF,&taoapp); CHKERRQ(info);
/* Set the function and Jacobian routines. */
info = TaoSetPetscFunction(taoapp,x,TAO_NULL,TAO_NULL);
CHKERRQ(info);
info = TaoSetPetscJacobian(taoapp, J, EvaluateJacobian, (void*)&user);
CHKERRQ(info);
info = TaoSetPetscConstraintsFunction(taoapp, f, EvaluateConstraints,(void*) &user);
CHKERRQ(info);
/* Compute the standard starting point. */
info = FormStartingPoint(&user, x); CHKERRQ(info);
info = TaoSetPetscInitialVector(taoapp,x); CHKERRQ(info);
/* Now that the PETSc application is set, attach to TAO context */
info = TaoSetApplication(tao,taoapp); CHKERRQ(info);
/* Check for any TAO command line arguments */
info = TaoSetFromOptions(tao); CHKERRQ(info);
/* Perform the Solve */
info = TaoSolve(tao); CHKERRQ(info);
/* Free TAO data structures */
info = TaoApplicationDestroy(taoapp); CHKERRQ(info);
info = TaoDestroy(tao); CHKERRQ(info);
/* Free PETSc data structures */
info = VecDestroy(x); CHKERRQ(info);
info = VecDestroy(f); CHKERRQ(info);
info = MatDestroy(J); CHKERRQ(info);
/* Free user data structures */
info = AppCtxDestroy(&user); CHKERRQ(info);
info = PetscFree(matarray);CHKERRQ(info);
/* Finalize TAO */
PetscFinalize();
TaoFinalize();
return 0;
}
int main (int argc, char **argv)
{
double startTime;
int info; /* used to check for functions returning nonzeros */
GAVec ga_x; /* solution vector */
TAO_SOLVER tao; /* TAO_SOLVER solver context */
TAO_GA_APPLICATION taoapp; /* TAO application context */
TaoTerminateReason reason;
AppCtx user; /* user-defined application context */
/*initialize GA and MPI */
int heap = 4000, stack = 4000;
MPI_Init (&argc, &argv); /* initialize MPI */
GA_Initialize (); /* initialize GA */
if (!MA_init(MT_F_DBL, stack, heap))
GA_Error((char*)"MA_init failed", stack+heap);
/* Initialize TAO */
TaoInitialize (&argc, &argv, (char *) 0, help);
startTime = MPI_Wtime();
/* Initialize problem parameters */
user.natoms = NATOMS;
user.ndim = NDIM;
user.n = user.natoms*user.ndim;
/* Create working space */
if (MA_push_stack(C_DBL, 2*user.n, "Vector buffers", &user.memHandle) == MA_FALSE)
GA_Error((char*)"MAIN::ma_alloc_get failed",2*user.n);
/* Allocate Global Array vector for the solution */
int dims[2];
dims[0] = user.n;
ga_x = NGA_Create (C_DBL, 1, dims, (char*)"GA_X", NULL);
if (!ga_x) GA_Error ((char*)"lennard-jones.main::NGA_Create ga_x", ga_x);
/* The TAO code begins here */
/* Create TAO solver with desired solution method */
info = TaoCreate (MPI_COMM_WORLD, "tao_cg", &tao); CHKERRQ(info);
info = TaoGAApplicationCreate (MPI_COMM_WORLD, &taoapp); CHKERRQ(info);
/* Set initial vector */
info = InitializeVariables(ga_x, &user); CHKERRQ(info);
info = TaoGAAppSetInitialSolutionVec(taoapp, ga_x); CHKERRQ(info);
/* Set routines for function, gradient */
info = TaoGAAppSetObjectiveAndGradientRoutine (taoapp, FormFunctionGradient, (void *) &user);
CHKERRQ(info);
/* Check for TAO command line options */
info = TaoSetFromOptions (tao); CHKERRQ(info);
/* SOLVE THE APPLICATION */
info = TaoSolveGAApplication (taoapp, tao); CHKERRQ(info);
/* To View TAO solver information use */
info = TaoView(tao); CHKERRQ(info);
/* Get termination information */
info = TaoGetTerminationReason (tao, &reason); CHKERRQ(info);
if (reason <= 0)
printf("Try a different TAO method, adjust some parameters, or check the function evaluation routines\n");
printf("TIME TAKEN = %lf\n", MPI_Wtime()-startTime);
/*output the solutions */
printf ("The solution is :\n");
GA_Print (ga_x);
/* Free TAO data structures */
info = TaoDestroy (tao); CHKERRQ(info);
info = TaoGAAppDestroy (taoapp); CHKERRQ(info);
/* Free GA data structures */
GA_Destroy (ga_x);
if (!MA_pop_stack(user.memHandle))
GA_Error((char*)"Main::MA_pop_stack failed",0);
/* Finalize TAO, GA, and MPI */
TaoFinalize ();
GA_Terminate ();
MPI_Finalize ();
return 0;
}
int main (int argc, char **argv)
{
double startTime;
int info; /* used to check for functions returning nonzeros */
GAVec ga_x; /* solution vector */
TAO_SOLVER tao; /* TAO_SOLVER solver context */
TAO_GA_APPLICATION taoapp; /* TAO application context */
TaoTerminateReason reason;
AppCtx user; /* user-defined application context */
/*initialize GA and MPI */
int heap = 400000, stack = 400000;
MPI_Init (&argc, &argv); /* initialize MPI */
GA_Initialize (); /* initialize GA */
user.me = GA_Nodeid ();
user.nproc = GA_Nnodes ();
startTime = MPI_Wtime();
if (user.me == 0) {
if (GA_Uses_fapi ())
GA_Error ("Program runs with C array API only", 0);
printf ("Using %ld processes\n", (long) user.nproc);
fflush (stdout);
}
heap /= user.nproc;
stack /= user.nproc;
if (!MA_init (MT_F_DBL, stack, heap))
GA_Error ("MA_init failed", stack + heap); /* initialize memory allocator */
/* Initialize TAO */
TaoInitialize (&argc, &argv, (char *) 0, help);
/* Initialize problem parameters */
user.ndim = NDIM;
user.natoms = NATOMS;
user.BlockSize = BLOCKSIZE;
/* Allocate vectors for the solution and gradient */
int dims[2];
dims[0] = user.ndim*user.natoms;
ga_x = NGA_Create (C_DBL, 1, dims, "GA_X", NULL);
if (!ga_x) GA_Error ("lennard-jones.main::NGA_Create ga_x", ga_x);
/* Set up structures for data distribution */
info = SetupBlocks(&user); CHKERRQ(info);
/* The TAO code begins here */
/* Create TAO solver with desired solution method */
info = TaoCreate (MPI_COMM_WORLD, "tao_lmvm", &tao); CHKERRQ(info);
info = TaoGAApplicationCreate (MPI_COMM_WORLD, &taoapp); CHKERRQ(info);
/* Set the initial solution */
info = InitializeVariables(ga_x, &user); CHKERRQ(info);
info = TaoGAAppSetInitialSolutionVec(taoapp, ga_x); CHKERRQ(info);
/* Set routines for function, gradient */
info = TaoGAAppSetObjectiveAndGradientRoutine (taoapp, FormFunctionGradient,
(void *) &user); CHKERRQ(info);
/* Check for TAO command line options */
info = TaoSetFromOptions (tao); CHKERRQ(info);
/* SOLVE THE APPLICATION */
info = TaoSolveGAApplication (taoapp, tao); CHKERRQ(info);
/* To View TAO solver information use */
info = TaoView(tao); CHKERRQ(info);
/* Get termination information */
info = TaoGetTerminationReason (tao, &reason);
if(info) GA_Error("lennard-jones.main.TaoGetTerminationReason",info);
if (user.me == 0) {
if (reason <= 0)
printf("Try a different TAO method, adjust some parameters, or check the function evaluation routines\n");
printf("WALL TIME TAKEN = %lf\n", MPI_Wtime()-startTime);
/*output the solutions */
printf ("The solution is :\n");
}
GA_Print (ga_x);
/* Free TAO data structures */
info = TaoDestroy (tao); CHKERRQ(info);
info = TaoGAAppDestroy (taoapp); CHKERRQ(info);
/* Free GA data structures */
GA_Destroy (ga_x);
if (!MA_pop_stack(user.memHandle))
ga_error("Main::MA_pop_stack for memHandle failed",0);
/* Finalize TAO, GA, and MPI */
TaoFinalize ();
GA_Terminate ();
MPI_Finalize ();
return 0;
}
int main(int argc,char **argv)
{
PetscErrorCode ierr; /* used to check for functions returning nonzeros */
PetscReal zero=0.0;
Vec x; /* solution vector */
Mat H;
Tao tao; /* Tao solver context */
PetscBool flg, test_lmvm = PETSC_FALSE;
PetscMPIInt size,rank; /* number of processes running */
AppCtx user; /* user-defined application context */
TaoConvergedReason reason;
PetscInt its, recycled_its=0, oneshot_its=0;
/* Initialize TAO and PETSc */
ierr = PetscInitialize(&argc,&argv,(char*)0,help);if (ierr) return ierr;
ierr = MPI_Comm_size(PETSC_COMM_WORLD,&size);CHKERRQ(ierr);
ierr = MPI_Comm_rank(PETSC_COMM_WORLD,&rank);CHKERRQ(ierr);
if (size >1) SETERRQ(PETSC_COMM_SELF,1,"Incorrect number of processors");
/* Initialize problem parameters */
user.n = 2; user.alpha = 99.0; user.chained = PETSC_FALSE;
/* Check for command line arguments to override defaults */
ierr = PetscOptionsGetInt(NULL,NULL,"-n",&user.n,&flg);CHKERRQ(ierr);
ierr = PetscOptionsGetReal(NULL,NULL,"-alpha",&user.alpha,&flg);CHKERRQ(ierr);
ierr = PetscOptionsGetBool(NULL,NULL,"-chained",&user.chained,&flg);CHKERRQ(ierr);
ierr = PetscOptionsGetBool(NULL,NULL,"-test_lmvm",&test_lmvm,&flg);CHKERRQ(ierr);
/* Allocate vectors for the solution and gradient */
ierr = VecCreateSeq(PETSC_COMM_SELF,user.n,&x);CHKERRQ(ierr);
ierr = MatCreateSeqBAIJ(PETSC_COMM_SELF,2,user.n,user.n,1,NULL,&H);CHKERRQ(ierr);
/* The TAO code begins here */
/* Create TAO solver with desired solution method */
ierr = TaoCreate(PETSC_COMM_SELF,&tao);CHKERRQ(ierr);
ierr = TaoSetType(tao,TAOLMVM);CHKERRQ(ierr);
/* Set solution vec and an initial guess */
ierr = VecSet(x, zero);CHKERRQ(ierr);
ierr = TaoSetInitialVector(tao,x);CHKERRQ(ierr);
/* Set routines for function, gradient, hessian evaluation */
ierr = TaoSetObjectiveAndGradientRoutine(tao,FormFunctionGradient,&user);CHKERRQ(ierr);
ierr = TaoSetHessianRoutine(tao,H,H,FormHessian,&user);CHKERRQ(ierr);
/* Check for TAO command line options */
ierr = TaoSetFromOptions(tao);CHKERRQ(ierr);
/* Solve the problem */
ierr = TaoSetTolerances(tao, 1.e-5, 0.0, 0.0);CHKERRQ(ierr);
ierr = TaoSetMaximumIterations(tao, 5);CHKERRQ(ierr);
ierr = TaoLMVMRecycle(tao, PETSC_TRUE);CHKERRQ(ierr);
reason = TAO_CONTINUE_ITERATING;
while (reason != TAO_CONVERGED_GATOL) {
ierr = TaoSolve(tao);CHKERRQ(ierr);
ierr = TaoGetConvergedReason(tao, &reason);CHKERRQ(ierr);
ierr = TaoGetIterationNumber(tao, &its);CHKERRQ(ierr);
recycled_its += its;
ierr = PetscPrintf(PETSC_COMM_SELF, "-----------------------\n");CHKERRQ(ierr);
}
/* Disable recycling and solve again! */
ierr = TaoSetMaximumIterations(tao, 100);CHKERRQ(ierr);
ierr = TaoLMVMRecycle(tao, PETSC_FALSE);CHKERRQ(ierr);
ierr = VecSet(x, zero);CHKERRQ(ierr);
ierr = TaoSolve(tao);CHKERRQ(ierr);
ierr = TaoGetConvergedReason(tao, &reason);CHKERRQ(ierr);
if (reason != TAO_CONVERGED_GATOL) SETERRQ(PETSC_COMM_SELF, PETSC_ERR_NOT_CONVERGED, "Solution failed to converge!");
ierr = TaoGetIterationNumber(tao, &oneshot_its);CHKERRQ(ierr);
ierr = PetscPrintf(PETSC_COMM_SELF, "-----------------------\n");CHKERRQ(ierr);
ierr = PetscPrintf(PETSC_COMM_SELF, "recycled its: %D | oneshot its: %D\n", recycled_its, oneshot_its);CHKERRQ(ierr);
if (recycled_its != oneshot_its) SETERRQ(PETSC_COMM_SELF, PETSC_ERR_NOT_CONVERGED, "LMVM recycling does not work!");
ierr = TaoDestroy(&tao);CHKERRQ(ierr);
ierr = VecDestroy(&x);CHKERRQ(ierr);
ierr = MatDestroy(&H);CHKERRQ(ierr);
ierr = PetscFinalize();
return ierr;
}
PetscErrorCode main(int argc,char **argv)
{
PetscErrorCode ierr; /* used to check for functions returning nonzeros */
Tao tao;
KSP ksp;
PC pc;
AppCtx user; /* application context */
ierr = PetscInitialize(&argc,&argv,(char *)0,help);
CHKERRQ(ierr);
ierr = PetscPrintf(PETSC_COMM_WORLD,"\n---- TOY Problem -----\n");
CHKERRQ(ierr);
ierr = PetscPrintf(PETSC_COMM_WORLD,"Solution should be f(1,1)=-2\n");
CHKERRQ(ierr);
ierr = InitializeProblem(&user);
CHKERRQ(ierr);
ierr = TaoCreate(PETSC_COMM_WORLD,&tao);
CHKERRQ(ierr);
ierr = TaoSetType(tao,TAOIPM);
CHKERRQ(ierr);
ierr = TaoSetInitialVector(tao,user.x);
CHKERRQ(ierr);
ierr = TaoSetVariableBounds(tao,user.xl,user.xu);
CHKERRQ(ierr);
ierr = TaoSetObjectiveAndGradientRoutine(tao,FormFunctionGradient,(void*)&user);
CHKERRQ(ierr);
ierr = TaoSetEqualityConstraintsRoutine(tao,user.ce,FormEqualityConstraints,(void*)&user);
CHKERRQ(ierr);
ierr = TaoSetInequalityConstraintsRoutine(tao,user.ci,FormInequalityConstraints,(void*)&user);
CHKERRQ(ierr);
ierr = TaoSetJacobianEqualityRoutine(tao,user.Ae,user.Ae,FormEqualityJacobian,(void*)&user);
CHKERRQ(ierr);
ierr = TaoSetJacobianInequalityRoutine(tao,user.Ai,user.Ai,FormInequalityJacobian,(void*)&user);
CHKERRQ(ierr);
ierr = TaoSetHessianRoutine(tao,user.H,user.H,FormHessian,(void*)&user);
CHKERRQ(ierr);
ierr = TaoSetTolerances(tao,0,0,0);
CHKERRQ(ierr);
ierr = TaoSetFromOptions(tao);
CHKERRQ(ierr);
ierr = TaoGetKSP(tao,&ksp);
CHKERRQ(ierr);
ierr = KSPGetPC(ksp,&pc);
CHKERRQ(ierr);
ierr = PCSetType(pc,PCLU);
CHKERRQ(ierr);
/*
This algorithm produces matrices with zeros along the diagonal therefore we need to use
SuperLU which does partial pivoting
*/
ierr = PCFactorSetMatSolverPackage(pc,MATSOLVERSUPERLU);
CHKERRQ(ierr);
ierr = KSPSetType(ksp,KSPPREONLY);
CHKERRQ(ierr);
ierr = KSPSetFromOptions(ksp);
CHKERRQ(ierr);
ierr = TaoSetTolerances(tao,0,0,0);
CHKERRQ(ierr);
ierr = TaoSolve(tao);
CHKERRQ(ierr);
ierr = DestroyProblem(&user);
CHKERRQ(ierr);
ierr = TaoDestroy(&tao);
CHKERRQ(ierr);
ierr = PetscFinalize();
return ierr;
}