Purpose
Each package
must define a version of this routine as specified below.
This is used by the speed_main
program
to run the corresponding speed and correctness tests.
Method
The same template routine det_by_lu
is used
by the different AD packages.
Return Value
If this speed test is not yet
supported by a particular
package
,
the corresponding return value for link_det_lu
should be false.
size
The argument
size
is the number of rows and columns in the matrix.
repeat
The argument
repeat
is the number of different matrices
that the gradient (or determinant) is computed for.
matrix
The argument
matrix
is a vector with
size*size
elements.
The input value of its elements does not matter.
The output value of its elements is the last matrix that the
gradient (or determinant) is computed for.
gradient
The argument
gradient
is a vector with
size*size
elements.
The input value of its elements does not matter.
The output value of its elements is the gradient of the
determinant of
matrix
with respect to its elements.
double
In the case where
package
is double,
only the first element of
gradient
is used and it is actually
the determinant value (the gradient value is not computed).
Input File: speed/src/link_det_lu.cpp