GSLIB Help Page: ANNEAL
Description:
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This program requires an integer-coded training image, a series of
initial integer-coded realizations (possibly only one) to post-process,
and information about what components of a two-point histogram are
to be reproduced. The integer coding could be derived naturally from a
categorical variable or it could be derived from the discretization of
a continuous variable.
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Parameters:
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datafl: a file that contains the input realizations to
post-process. The realizations must be integer-coded. The
maximum number of different integer codes is specified in
anneal.inc. The input file has one integer per line cycling
fastest on x, then y, then z, then by realization.
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trainfl: a file with the training image. The training image
must have the same integer code values as the realizations to
post-process and have the same size and discretization.
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idbg and report: an integer debugging level between 0
and 3, and a reporting interval. After a fixed number of iterations
(report) the realization is written to the output file.
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dbgfl: file for the debugging information.
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outfl: the output file that will contain the post-processed
realizations.
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nsim: the number of initial realizations to post process.
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nx, ny, and nz: definition of the grid system.
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seed: random number seed (a large odd integer).
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maxit and tol: the maximum number of iterations over the
entire grid network. Typically 99\% of the improvement is reached in
5 iterations and the remaining 1\% may be reached by 10 iterations.
More than 10 iterations is not recommended. The initial objective
function is normalized to one; when it is lowered to tol the
simulation is stopped.
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ndir: the number of directions for the two-point histogram
control. For each direction the following parameters are needed:
- ixl: the offset in the x direction for a unit lag
- iyl: the offset in the y direction for a unit lag
- izl: the offset in the z direction for a unit lag
- nlag: the number of lags