#38: Allow k-order and estimation DLL to use M-file and bytecode for the model evaluation --------------------------+------------------------------------------------- Reporter: sebastien | Owner: sebastien Type: feature | Status: accepted Priority: major | Milestone: 4.2 Component: K-order DLL | Version: Resolution: | Keywords: --------------------------+------------------------------------------------- Changes (by sebastien):
* owner: ferhat => sebastien * component: Preprocessor => K-order DLL * milestone: => 4.2
Old description:
First, support for k-order derivatives computation needs to be added to the preprocessor.
Second, a storage mechanism for these needs to be added in the bytecode generation.
Third, the bytecode interpreter should provide two C functions:
- one for retrieving the number of non-zero elements (NNZE) in the
k-order derivative (accross all equations)
- one which would pass on the derivatives to the caller. Its arguments
would be: * the order of derivation (k) * a (double*) vector, allocated by the caller, of length the NNZE * a (int*) matrix, of size NNZE times (k+1): the first column is the equation number, the others are the variables indices (ordered in non- decreasing order: the symmetric elements are not duplicated)
New description:
Currently, k-order DLL and estimation DLL only work with use_dll option.
This constraint could be easily relieved by calling the M-file of the model from within the DLL, using mexCallMATLAB().
For the bytecode, a similar trick could be done, provided that support is added for 2nd and 3rd order derivatives.
From the implementation side, the idea would be to create an super class of DynamicModelDll.
This change needs to be documented in the reference manual when implemented.
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