IBM Release 1.93 manual Schedule Group, Parameters, Range

Page 34

	Syntax: MERIT <expression> OR
	PENALTY <expression>
	Example: PENALTY 100*(OutputFlux/InputFlux - 1)
PARAMETERS	Defines quantities to guide the optimizer. The number of function
	evaluations (i.e., tempest runs) per restart will not exceed iterations,
	convergence will be declared when the penalty function value in all
	the simplex points is within tolerance of the best value, and the
	optimizer will be restarted restarts times after converging or running
	out of iterations.
	Parameters: iterations tolerance restarts
	Example:
	PARAMETERS iterations=35 tolerance = 1e-3 restarts = 2

3.1.11. SCHEDULE Group

Stepping is not implemented in this release.

VARIABLES	Tell the stepper which variables to step. These must have been
	defined in a SET statement.
	Syntax: VARIABLES var1 ... varN
RANGE	Tell the stepper how far, and at what intervals, to step variable
	varname.
	Parameters: varname lo hi stepsize
STORE	Supply a file name for the stepper’s results.
	Syntax: STORE <filename>

30

Image 34

Contents IBM T. J. Watson Research Center Yorktown Heights, NY Page IBM T. J. Watson Research Center Yorktown Heights, NY Using Poems HOW Poems WorksChapter Introduction MotivationPhilosophy Structure OptimizationPage Poems system organization Front-End Script poems.cmd Program OrganizationScript Operation Fdtd Engine FIDO/TEMPEST Postprocessor EmpostVisualization System VIS5D Cluster ControlParallel Processing Poems Command-Line Options Command ReferenceGlobal Group Function FreqLambda HostsWhich means that the host’s predefined hostname is not used MacdefMacro PrintSET RandomseedSimulator Verbose World GroupTitle BoundaryXrange Yrange Material GroupBasicstep DefineParameters epsReal epsImag muReal muImag Block Object GroupFAN Hollowbox GratingTiledplane 3DCURVE CurveCylinder Source Group Command Group Output GroupCAD Postprocess GroupField WebpageFlux FarfieldIntegral List ModematchMovie MOVIE3DDissipation SliceVariables Optimize GroupGuess Store LimitPenalty Merit Parameters Schedule GroupRange Computational Domain SymmetryObjects Perfectly-Matched Layers MaterialsPlane Waves Page Beam Sources Optimization Merit FunctionsPhase uniformity across a plane Worked Example Optimizing a V Antenna 10 Optimized V antenna refractivePage Worked Example Glass Ridge Waveguide to Free Space Coupler Worked Example Doped Silica Waveguide ModePredefined Constants Reserved Names ConfinePredefined Mathematical Functions Arithmetic OperatorsAcos Logical OperatorsABS AcoshCOS ATAN2Ceil ElintkMAX Integral20. LN MINRound RandomROOT1D SignMaterial Parameter Functions Analytical Pupil FunctionsFlattop Startup and Steady State Tempest and General Fdtd InformationTime step Page Appendix A. V-Antenna Optimization Run Poems Input DIPOLE2I.PAR END Material END World Subdomain ALL END ObjectEND Source END CommandEND Output END Optimize Phaseex END Postprocess AmplexPage Page Page END Tempest Input File DIPOLE2I.PAR.IN Written by Phil Hobbs Pages of pointsource statements omitted DIPOLE2IEXI Postprocessor orders DIPOLE2I.ORDERSALL DIPOLE2IEXQDIPOLE2IEZI DIPOLE2IEYIDIPOLE2IEYQ DIPOLE2IEZQArray Amplex MiddlefluxPOSTPROC.1.NAME POSTPROC.1.PARMSTRINGPOSTPROC.2.PARMSTRING DIPOLE2IPHASEEXArray FF2Array Poyntingz DIPOLE2IPXPOSTPROC.6.NAME DIPOLE2IPZPOSTPROC.11.NAME POSTPROC.9.PARMSTRINGPOSTPROC.10.PARMSTRING Slice IndexnDIPOLE2IPZXY0.BMP Slice PoyntingzPOSTPROC.13.COMPARISONDOMAIN POSTPROC.14.NAMEPOSTPROC.17.NAME POSTPROC.16.COMPARISONDOMAINDIPOLE2IPXZX0.BMP Slice AmplexPOSTPROC.20.COMPARISONDOMAIN DIPOLE2IPHASEEXXY0.BMPDIPOLE2IPHASEEXZX0.BMP DIPOLE2IDISSZX0.BMPPOSTPROC.24.COMPARISONDOMAIN DIPOLE2IEXQZX0.BMPRun Results DIPOLE2I.SIMPLEX Page Page Page Page Page Fdtd and Tempest Tempest patchesAdvice common to all or most Fdtd programs Tempest limitationsWindow System Configuration Sample X11 ConfigurationRelease Notes Running Vis5DWish list Beta Release Limitations Page Page Emdenormal Emunderflow IndexMatlab Maxordersources 81 Maxpointsources