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`CYCLES=`*n*

When `CYCLES=`*n* is specified, a maximum of *n* distinct geometry cycles
are allowed. After *n* cycles, the calculation is stopped in the same manner
as when the allowed time is exceeded. Geometry cycles are (A) cycles of
optimization in `EF, SIGMA,
NLLSQ`, and `BFGS`, (B) steps in a `
FORCE`
calculation, and (C) points calculated in an `IRC` or `
DRC`
calculation.
`CYCLES` is intended to be an alternative to the `
T=`*n*.*nn* keyword,
when platforms of different speeds are being used, particularly in porting. See
also `BIGCYCLES`.

*J. J. P. Stewart*

*Fujitsu Ltd. 2001*