Split the 16dae.c source file into multiple files

[Francesco Casella]

When compiling large models with -daeMode=new, the lion's share of the compilation time on machines with multiple cores is taken by the 16dae.c file. This contains

• a large number of simple functions, each computing a residual
• the evaluateDAEResiduals function
• the getAlgebraicDAEVarNominals function
• the setAlgebraicDAEVars function
• the getAlgebraicDAEVars function
• the initializeDAEmodeData function

I would recommend at the very least to put each of the last five functions in separate C source files. It would also be good to split the first part of the file, containing the residual functions, in multiple chunks, as already done for the 06inz.c file, see ticket:3963#comment:6. This would dramatically speed up the code generation for large models, where C compilation is currently the bottleneck.

[Francesco Casella]

In fact, also the 12jac.c and 02nls.c files can take a very long time and should be split as well.

[Willi Braun]

Probably it would be also worth to push all static information into an xml file and just read it once at runtime, here e.g. the sparsity pattern and the algebraic variables.
While splitting the equations in separated files should be done anyway.

[Francesco Casella]

Rescheduled to 1.14.0 after 1.13.0 releasee

[Francesco Casella]

Releasing 1.14.0 which is stable and has many improvements w.r.t. 1.13.2. This issue is rescheduled to 1.16.0

[Francesco Casella]

Retargeted to 1.17.0 after 1.16.0 release

[Francesco Casella]

Retargeted to 1.18.0 because of 1.17.0 timed release.

[Francesco Casella]

Ticket retargeted after milestone closed