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@(@\newcommand{\W}[1]{ \; #1 \; } \newcommand{\R}[1]{ {\rm #1} } \newcommand{\B}[1]{ {\bf #1} } \newcommand{\D}[2]{ \frac{\partial #1}{\partial #2} } \newcommand{\DD}[3]{ \frac{\partial^2 #1}{\partial #2 \partial #3} } \newcommand{\Dpow}[2]{ \frac{\partial^{#1}}{\partial {#2}^{#1}} } \newcommand{\dpow}[2]{ \frac{ {\rm d}^{#1}}{{\rm d}\, {#2}^{#1}} }@)@This is cppad-20221105 documentation. Here is a link to its current documentation .
atomic_mat_mul Get Routine: Example Implementation

Syntax
mat_mul.get(call_id, n_left, n_middle, n_right)

Prototype 

template <class Base>
void atomic_mat_mul<Base>::get(
    size_t call_id, size_t& n_left, size_t& n_middle, size_t& n_right
)

Purpose
Retrieves the dimension information for a an atomic operation that computes the matrix product R = A * B .

call_id
This argument identifies the dimension information for this matrix product.

n_left
This result is the row dimension of the matrices A and R .

n_middle
This result is the column dimension of the matrix A and row dimension of the matrix B .

n_right
This result is the column dimension of the matrices B and R .

Source 

# include <cppad/example/atomic_four/mat_mul/mat_mul.hpp>

namespace CppAD { // BEGIN_CPPAD_NAMESPACE
// BEGIN PROTOTYPE
template <class Base>
void atomic_mat_mul<Base>::get(
    size_t call_id, size_t& n_left, size_t& n_middle, size_t& n_right
)
// END PROTOTYPE
{
    // thread
    size_t thread = thread_alloc::thread_num();
    assert( work_[thread] != nullptr );
    assert( thread == (*work_[thread])[call_id].thread );
    //
    // n_left, n_middle, n_right
    call_struct& call = (*work_[thread])[call_id];
    n_left   = call.n_left;
    n_middle = call.n_middle;
    n_right  = call.n_right;
    //
    return;
}
} // END_CPPAD_NAMESPACE
Input File: include/cppad/example/atomic_four/mat_mul/get.hpp