Verification of the Parallel C Code with Fortran Code for FDTD Calculations

Abstract

This report results from a contract tasking Institute of non-ionizing radiation as follows: The main part of the proposed work will be designed to verify the parallel C code with the published results obtained by the Fortran code. To carry out trustful verification of the parallel FDTD code, it is necessary to compare the result of the parallel C code with the results of the Fortran code for different exposure conditions and different anatomical models. In the first step, it is necessary to decide which models will be included in the calculations ad for which exposures the calculation will be run. At least two different anatomical models will be included in the calculation: human and rat. The calculations will cover the most investigated frequencies in the frequency spectrum 80-3000 MHz as well as some selected frequencies at the upper and lower end of the code capability. In the verification, all important areas of program package will be included: automatic space partitioning algorithm, importing of the tissue data, model data and boundary data, clustering. Beside the verification of the parallel C code also comparison of the time effectiveness of both codes will be prepared. The results show great consistency between the two different implementations of FDTD code across a wide variety of models and exposure scenarios. There are some minor outliers in the whole body SAR comparison, and some larger differences in the localized tissue SAR values. However, these can be explained by the fact that although the model and exposure details were the same, the criteria for finishing a simulation (i.e. the ratio between two successive whole-body SAR values) can be satisfied over the whole body, even if the distribution of power over the internal organs is not entirely stabilized yet.

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Document Details

Document Type
Technical Report
Publication Date
Jul 06, 2010
Accession Number
ADA532501

Entities

People

  • Peter Gajsek

Tags

Communities of Interest

  • Biomedical

DTIC Thesaurus Topics

  • Absorption
  • Algorithms
  • Anatomical Models
  • Body Fluids
  • Boundaries
  • C Programming Language
  • Computer Programming
  • Data Science
  • Electromagnetic Fields
  • Frequency
  • Information Science
  • Measurement
  • Radiation
  • Radio Frequency
  • Simulations
  • Statistical Analysis
  • Verification

Readers

  • Computational Modeling and Simulation
  • Computer Programming and Software Development.
  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)

Technology Areas

  • Space