\(\newcommand{\W}[1]{ \; #1 \; }\) \(\newcommand{\R}[1]{ {\rm #1} }\) \(\newcommand{\B}[1]{ {\bf #1} }\) \(\newcommand{\D}[2]{ \frac{\partial #1}{\partial #2} }\) \(\newcommand{\DD}[3]{ \frac{\partial^2 #1}{\partial #2 \partial #3} }\) \(\newcommand{\Dpow}[2]{ \frac{\partial^{#1}}{\partial {#2}^{#1}} }\) \(\newcommand{\dpow}[2]{ \frac{ {\rm d}^{#1}}{{\rm d}\, {#2}^{#1}} }\)

atomic_four_mat_mul_set.hpp

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atomic_mat_mul Set Routine: Example Implementation

Syntax

call_id = mat_mul . set ( n_left , n_middle , n_right )

Prototype

template <class Base>
size_t atomic_mat_mul<Base>::set(
   size_t n_left, size_t n_middle, size_t n_right
)

Purpose

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

n_left

This argument is the row dimension of the matrices A and R .

n_middle

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

n_right

This argument is the column dimension of the matrices B and R .

call_id

This return value identifies the dimension information above.

Source

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

namespace CppAD { // BEGIN_CPPAD_NAMESPACE
// BEGIN PROTOTYPE
template <class Base>
size_t atomic_mat_mul<Base>::set(
   size_t n_left, size_t n_middle, size_t n_right
)
// END PROTOTYPE
{
   // thread
   size_t thread = thread_alloc::thread_num();
   //
   // work_[thread]
   if( work_[thread] == nullptr )
      work_[thread] = new call_vector;
   //
   // call_id
   size_t call_id = work_[thread]->size();
   //
   // call
   call_struct call;
   call.n_left   = n_left;
   call.n_middle = n_middle;
   call.n_right  = n_right;
   call.thread   = thread;
   //
   // work_[thread]
   work_[thread]->push_back( call );
   //
   return call_id;
}
} // END_CPPAD_NAMESPACE