IBM Release 1.93 manual Parallel Processing

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2.6.1. Parallel Processing

[Under construction]

FIDO is a powerful and versatile simulation engine, which can compute simulations using inhomogeneous cubic grids on uniprocessors, symmetric multiprocessors (SMPs), and clusters tied together with TCP/IP. From the POEMS user’s point of view, SMPs act just like uniprocessors, except that an N-way SMP needs its work divided up into at least N chunks, and the load balancing is manual--usually it’s easy. This section discusses multiprocessor operations; technical details are in Appendix C.

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Contents IBM T. J. Watson Research Center Yorktown Heights, NY Page IBM T. J. Watson Research Center Yorktown Heights, NY HOW Poems Works Using PoemsMotivation Chapter IntroductionPhilosophy Optimization StructurePage Poems system organization Front-End Script poems.cmd Program OrganizationScript Operation Postprocessor Empost Fdtd Engine FIDO/TEMPESTCluster Control Visualization System VIS5DParallel Processing Poems Command-Line Options Command ReferenceGlobal Group Lambda FreqFunction HostsMacdef Which means that the host’s predefined hostname is not usedPrint MacroSET RandomseedSimulator Title World GroupVerbose BoundaryBasicstep Material GroupXrange Yrange DefineParameters epsReal epsImag muReal muImag Block Object GroupFAN Hollowbox GratingTiledplane 3DCURVE CurveCylinder Source Group Output Group Command GroupField Postprocess GroupCAD WebpageFlux FarfieldIntegral Modematch ListMOVIE3D MovieSlice DissipationVariables Optimize GroupGuess Store LimitPenalty Merit Parameters Schedule GroupRange Symmetry Computational DomainObjects Materials Perfectly-Matched LayersPlane Waves Page Beam Sources Merit Functions OptimizationPhase uniformity across a plane 10 Optimized V antenna refractive Worked Example Optimizing a V AntennaPage Worked Example Glass Ridge Waveguide to Free Space Coupler Worked Example Doped Silica Waveguide ModePredefined Constants Confine Reserved NamesArithmetic Operators Predefined Mathematical FunctionsABS Logical OperatorsAcos AcoshCeil ATAN2COS Elintk20. LN IntegralMAX MINROOT1D RandomRound 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 Object END World Subdomain ALLEND Source END CommandEND Output END Optimize END Postprocess Amplex PhaseexPage Page Page END Tempest Input File DIPOLE2I.PAR.IN Written by Phil Hobbs Pages of pointsource statements omitted ALL Postprocessor orders DIPOLE2I.ORDERSDIPOLE2IEXI DIPOLE2IEXQDIPOLE2IEYQ DIPOLE2IEYIDIPOLE2IEZI DIPOLE2IEZQPOSTPROC.1.NAME MiddlefluxArray Amplex POSTPROC.1.PARMSTRINGArray DIPOLE2IPHASEEXPOSTPROC.2.PARMSTRING FF2POSTPROC.6.NAME DIPOLE2IPXArray Poyntingz DIPOLE2IPZPOSTPROC.10.PARMSTRING POSTPROC.9.PARMSTRINGPOSTPROC.11.NAME Slice IndexnPOSTPROC.13.COMPARISONDOMAIN Slice PoyntingzDIPOLE2IPZXY0.BMP POSTPROC.14.NAMEDIPOLE2IPXZX0.BMP POSTPROC.16.COMPARISONDOMAINPOSTPROC.17.NAME Slice AmplexDIPOLE2IPHASEEXZX0.BMP DIPOLE2IPHASEEXXY0.BMPPOSTPROC.20.COMPARISONDOMAIN DIPOLE2IDISSZX0.BMPDIPOLE2IEXQZX0.BMP POSTPROC.24.COMPARISONDOMAINRun Results DIPOLE2I.SIMPLEX Page Page Page Page Page Tempest patches Fdtd and TempestTempest limitations Advice common to all or most Fdtd programsSample X11 Configuration Window System ConfigurationRelease Notes Running Vis5DWish list Beta Release Limitations Page Page Emdenormal Emunderflow IndexMatlab Maxordersources 81 Maxpointsources