IBM Release 1.93 manual END Optimize

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FIELD variable=Ey xlo=0 xhi=xsize ylo=0 yhi=ysize zlo=0, zhi=zsize phase=0.25*cycle state=steady file=Dipole2I_eyq FIELD variable=Ez xlo=0 xhi=xsize ylo=0 yhi=ysize zlo=0, zhi=zsize phase=0 state=steady file=Dipole2I_ezi

FIELD variable=Ez xlo=0 xhi=xsize ylo=0 yhi=ysize zlo=0, zhi=zsize phase=0.25*cycle state=steady file=Dipole2I_ezq FIELD variable=hx xlo=0 xhi=xsize ylo=0 yhi=ysize zlo=0, zhi=zsize phase=0 state=steady file=Dipole2I_hxI

FIELD variable=hx xlo=0 xhi=xsize ylo=0 yhi=ysize zlo=0, zhi=zsize phase=0.25*cycle state=steady file=Dipole2I_hxq FIELD variable=hy xlo=0 xhi=xsize ylo=0 yhi=ysize zlo=0, zhi=zsize phase=0 state=steady file=Dipole2I_hyi

FIELD variable=hy xlo=0 xhi=xsize ylo=0 yhi=ysize zlo=0, zhi=zsize phase=0.25*cycle state=steady file=Dipole2I_hyq FIELD variable=hz xlo=0 xhi=xsize ylo=0 yhi=ysize zlo=0, zhi=zsize phase=0 state=steady file=Dipole2I_hzi

FIELD variable=hz xlo=0 xhi=xsize ylo=0 yhi=ysize zlo=0, zhi=zsize phase=0.25*cycle state=steady file=Dipole2I_hzq

END

OPTIMIZE

VARIABLES ZRakeUM ZL DipoleLengthUM /* variables to be minimized over, in penalty function */ GUESS ZRakeUM = 5.699520E-001 ZL = 9.940356E+001 DipoleLengthUM = 1.511401

GUESS ZRakeUM = .2000000E-001 ZL = 1.290000E+002 DipoleLengthUM = 1.000000 GUESS ZRakeUM = 7.253907E-002 ZL = 9.826026E+001 DipoleLengthUM = 1.527009

/* one guess normally comes from the original definition of /* the variables used in the penalty function. This allows /* you to supply more.

STORE Dipole2I.simplex MERIT diss*1e12

PARAMETERS iterations=35 tolerance=1e-4 restarts= 2 /* Automatically restart Nelder-Mead this many times */

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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 Program Organization Front-End Script poems.cmdScript Operation Fdtd Engine FIDO/TEMPEST Postprocessor EmpostVisualization System VIS5D Cluster ControlParallel Processing Command Reference Poems Command-Line OptionsGlobal Group Freq LambdaFunction HostsWhich means that the host’s predefined hostname is not used MacdefMacro PrintRandomseed SETSimulator World Group TitleVerbose BoundaryMaterial Group BasicstepXrange Yrange DefineParameters epsReal epsImag muReal muImag Object Group BlockFAN Grating HollowboxTiledplane Curve 3DCURVECylinder Source Group Command Group Output GroupPostprocess Group FieldCAD WebpageFarfield FluxIntegral List ModematchMovie MOVIE3DDissipation SliceOptimize Group VariablesGuess Limit StorePenalty Merit Schedule Group ParametersRange 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 Doped Silica Waveguide Mode Worked Example Glass Ridge Waveguide to Free Space CouplerPredefined Constants Reserved Names ConfinePredefined Mathematical Functions Arithmetic OperatorsLogical Operators ABSAcos AcoshATAN2 CeilCOS ElintkIntegral 20. LNMAX MINRandom ROOT1DRound SignAnalytical Pupil Functions Material Parameter FunctionsFlattop Tempest and General Fdtd Information Startup and Steady StateTime step Page Appendix A. V-Antenna Optimization Run Poems Input DIPOLE2I.PAR END Material END World Subdomain ALL END ObjectEND Command END SourceEND 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 Postprocessor orders DIPOLE2I.ORDERS ALLDIPOLE2IEXI DIPOLE2IEXQDIPOLE2IEYI DIPOLE2IEYQDIPOLE2IEZI DIPOLE2IEZQMiddleflux POSTPROC.1.NAMEArray Amplex POSTPROC.1.PARMSTRINGDIPOLE2IPHASEEX ArrayPOSTPROC.2.PARMSTRING FF2DIPOLE2IPX POSTPROC.6.NAMEArray Poyntingz DIPOLE2IPZPOSTPROC.9.PARMSTRING POSTPROC.10.PARMSTRINGPOSTPROC.11.NAME Slice IndexnSlice Poyntingz POSTPROC.13.COMPARISONDOMAINDIPOLE2IPZXY0.BMP POSTPROC.14.NAMEPOSTPROC.16.COMPARISONDOMAIN DIPOLE2IPXZX0.BMPPOSTPROC.17.NAME Slice AmplexDIPOLE2IPHASEEXXY0.BMP DIPOLE2IPHASEEXZX0.BMPPOSTPROC.20.COMPARISONDOMAIN 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 ConfigurationRunning Vis5D Release NotesWish list Beta Release Limitations Page Page Index Emdenormal EmunderflowMatlab Maxordersources 81 Maxpointsources