Dear Ray Zimmerman

I obtain the next error when I run a opf of a large grid, for instance:
case300.

>> runopf('case300')

                               max                   Directional
First-order 
 Iter F-count        f(x)   constraint    Step-size   derivative
optimality Procedure 
    0      1       704383        10.12
Infeasible start point
Error in ==> optim\private\qpsub at 760
                    gradsd = norm(SD);

Error in ==> optim\private\qpsub at 274
    [XS,lambdaS,exitflagS,outputS,howS,ACTIND2] = ...

Error in ==> optim\private\nlconst at 684
      [SD,lambda,exitflagqp,outputqp,howqp,ACTIND] ...

Error in ==> fmincon at 498
   [X,FVAL,lambda,EXITFLAG,OUTPUT,GRAD,HESSIAN]=...

Error in ==> fmincopf at 654
[x, f, info, Output, Lambda, Jac] = ...

Error in ==> opf at 352
        [bus, gen, branch, f, success, info, et] = fmincopf(baseMVA, ...

Error in ==> runopf at 48
[bus, gen, branch, f, success, info, et] = opf(baseMVA, bus, gen,
branch, ...


I use windows and I have installed the released optional packages for
Matpoer (MINOPF, BPMPD_MEX and TSPOPF). The case300 power flow
[runpf('case300')] work  very well. 

I will appreciate very much a reccomendation o sugestion for overcoming
this problem. 
Thankyou very much

Profr. R. Castellanos


-----Mensaje original-----
De: [email protected]
[mailto:[email protected]] En nombre de Ray
Zimmerman
Enviado el: Jueves, 27 de Septiembre de 2007 12:03 p.m.
Para: MATPOWER List
Asunto: Invalid MEX file errors on Windows

If you are attempting to use a Windows version of one of the recently
released optional packages for MATPOWER (MINOPF, BPMPD_MEX or TSPOPF) on
a recent Matlab version, you may have encountered an error like:

   Invalid MEX-file 'C:\minopf3.2_w32\minopf.mexw32': This application
has
   failed to start because the application configuration is incorrect.
   Reinstalling the application may fix this problem.

The solution is to install the latest Microsoft Visual C++ 2005
Redistributable, available from Microsoft:

  <http://www.microsoft.com/downloads/details.aspx? 
displaylang=en&FamilyID=200b2fd9-ae1a-4a14-984d-389c36f85647>

I have included this in a new FAQ section on each of the corresponding
web pages.

   http://www.pserc.cornell.edu/bpmpd/#faq
   http://www.pserc.cornell.edu/minopf/#faq
   http://www.pserc.cornell.edu/tspopf/#faq

--
Ray Zimmerman
Senior Research Associate
428-B Phillips Hall, Cornell University, Ithaca, NY 14853
phone: (607) 255-9645



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