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ADIFOR working note. number sign. 2 [electronic resource] : Using ADIFOR to compute dense and sparse Jacobians

Published:
Washington, D.C. : United States. Dept. of Energy, 1992.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description:
Pages: (23 pages) : digital, PDF file
Additional Creators:
Argonne National Laboratory, United States. Department of Energy, National Science Foundation (U.S.), and United States. Department of Energy. Office of Scientific and Technical Information
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Summary:
ADIFOR is a source translator that, given a collection of Fortran subroutines for the computation of a function,'' produces Fortran code for the computation of the derivatives of this function. More specifically, ADIFOR produces code to compute the matrix-matrix product JS, where J is the Jacobian of the function'' with respect to the user-defined independent variables, and S is the composition of the derivative objects corresponding to the independent variables. This interface is flexible; by setting S = x, one can compute the matrix-vector product Jx, or by setting S = I, one can compute the whole Jacobian J. Other initializations of S allow one to exploit a known sparsity structure of J. This paper illustrates the proper initialization of ADIFOR-generated derivative codes and the exploitation of a known structure of J.
Report Numbers:
E 1.99:anl/mcs-tm-158
anl/mcs-tm-158
Subject(s):
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Note:
Published through SciTech Connect.
01/01/1992.
"anl/mcs-tm-158"
"DE92007996"
Bischof, C.; Hovland, P.
Funding Information:
W-31109-ENG-38
View MARC record | catkey: 14355660