Parent Command
>> CONVERGE
Subcommand

Description
A successful iTOUGH2 run is based on the robustness and stability of the
underlying TOUGH2 simulation. It is therefore imperative to develop a TOUGH2
model that is capable of completing the desired simulation for a variety of
parameter combinations. The simulation must reach the time of the last
calibration point, i.e., a premature termination due to convergence failures is
not acceptable. The number of potential convergence failures or errors leading
to premature termination is large. The type of convergence failure is
indicated in the iTOUGH2 output file. It is usually impossible to continue the
optimization process after a convergence failure. However, in some cases
iTOUGH2 is able to retrieve information from a previous simulation which allows
it to continue the inversion despite an incomplete run. iTOUGH2 always
terminates if an incomplete run is encountered during the first evaluation of
the Jacobian. The maximum number of incomplete simulations to be accepted by
iTOUGH2 can be set by variable max_incomplete (default: 5). However, one should
not rely on inversions that contain incomplete TOUGH2 runs.
Note that if option
Example
> COMPUTATION
>> TOLERANCE
>>> perform : 10 ITERATIONS
>>> or stop if : 250 TOUGH2 SIMULATIONS are executed
>>> accept : 10 INCOMPLETE runs, if possible
<<<
<<
See Also