fmincon, mex file creation error

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Chris Knight 2013-10-8

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/89567-fmincon-mex-file-creation-error

编辑： Matt J 2017-10-12

I am running a simulink model using fmincon function to optimise on of the transfer functions within it. at random numbers of iterations the following error occurs:

Error using RapidConObj (line 17)
Problem creating Accelerator MEX file for model 'FullSystem_V32'.
 To see the build output, use
 set_param('FullSystem_V32','AccelVerboseBuild','on')
Error in fmincon (line 635)
      initVals.f = feval(funfcn{3},X,varargin{:});
Error in RapidM (line 31)
x=fmincon('RapidConObj',x0,[],[],[],[],l,[],[],options,ACCurrent);
Caused by:
    Error using RapidConObj (line 17)
    C:\Users\wr023543\Dropbox\EngD\RTG
    Project\Modelling\RapidParam\slprj\accel\FullSystem_V32\tlc could not be
    removed.
      Failure in initial user-supplied objective function evaluation. FMINCON
      cannot continue.

does anyone have a clue why it would be fine 5 times and not the 6th or 19 but not the 20th?

cheers

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Chris Knight 2013-10-9

The only change to the model between runs will be the parameter value updates the fmincon function generates using the bfgs protocol.

this is what i got when i set the AccelVerboseBuild to 'on'

SimPowerSystems processing circuit #1 of FullSystem_V32 ... Computing state-space representation of linear electrical circuit ... (0 states ; 5 inputs ; 8 outputs)Computing discrete-time domain model of linear part of circuit (Ts=2e-06) ... Computing steady-state values of currents and voltages ... Building the Simulink model inside "powergui" block ... Ready. ### Building the Accelerator target for model: FullSystem_V32 ### Generating code into build folder: C:\Users\wr023543\Dropbox\EngD\RTG Project\Modelling\RapidParam\slprj\accel\FullSystem_V32 N_PWORKS = 18 numParams = 7 nStates = 0 nInputs = 5 nOutputs = 8 nSwitch = 0 Ts = 2e-06 NPARAMS_TOTAL = 11 ### Invoking Target Language Compiler on FullSystem_V32.rtw ### Using System Target File: C:\Program Files\MATLAB\R2013a\rtw\c\accel\accel.tlc ### Loading TLC function libraries .... ### Initial pass through model to cache user defined code .... ### Caching model source code ..................................................... ### Writing header file FullSystem_V32_acc.h ### Writing header file FullSystem_V32_acc_types.h ### Writing header file FullSystem_V32_acc_private.h . ### Writing header file rtwtypes.h ### Writing header file rt_look1d.h ### Writing source file rt_look1d.c . ### Writing header file rt_look.h ### Writing source file rt_look.c ### Writing source file FullSystem_V32_acc.c . ### Writing source file FullSystem_V32_acc_data.c ### Writing header file rt_nonfinite.h ### Writing source file rt_nonfinite.c . ### Writing header file rtGetInf.h ### Writing source file rtGetInf.c ### Writing header file rtGetNaN.h . ### Writing source file rtGetNaN.c ### TLC code generation complete. ### Build procedure for model: 'FullSystem_V32' aborted due to an error.

Chris Knight 2013-10-14