Purpose
By default, for each
AD<Base>
class there is only one
tape that records AD of Base
operations.
This tape is a global variable and hence it cannot be used
by multiple OpenMP threads at the same time.
The omp_max_thread function is used to set the
maximum number of OpenMP threads that can be active.
In this case, there is a different tape corresponding to each
AD<Base>
class and thread pair.
number
The argument
number
has prototype
size_t number
It must be greater than zero and specifies the maximum number of
OpenMp threads that will be active at one time.
Independent
Each call to Independent(x)
creates a new active
tape.
All of the operations with the corresponding variables
must be preformed by the same OpenMP thread.
This includes the corresponding call to
f.Dependent(x,y)
or the
ADFun f(x, y)
during which the tape stops recording and the variables
become parameters.
Restriction
No tapes can be
active
when this function is called.
Input File: include/cppad/core/omp_max_thread.hpp
