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>::clear () { if (this->initialized()) { this->_is_initialized = false; PetscErrorCode ierr=0; ierr = TaoDestroy(&_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; }