I'm trying to use the function in SeDuMi Interface 1.04 to solve some LMI(Linear matrice inequality) problems.
the interface is work with Matlab R2007b and SeDuMi 1.1.

the installation of Sedumi 1.1 are done, and i'm facing some problem when using the solver (sdmsol) as follow....



#####################################
# 2.6 # Solve an LMC problem: sdmsol
#####################################

quiz = sdmsol(quiz);
??? Invalid MEX-file 'G:\MATLAB\R2007b\toolbox\sedumi_1_1\whichcpx.dll': The specified
module could not be found.

.

Error in ==> pretransfo at 211
cpx = whichcpx(K);

Error in ==> sedumi at 253
[A,b,c,K,prep,origcoeff] = pretransfo(A,b,c,K,pars);

Error in ==> sdmpb.sdmsol at 187
[x,y,info]=sedumi(At,bt,c,K,pars);

Error in ==> sdmdemo at 128
fprintf('%s\n',do);eval(do);


Can anyone help me with this?? Thanks a lot

Are you saying you run matlab 2007B. Is your sedumi compiled for that architecture (i.e, do you have mex32, mex64 or dll files)? Should be dll files for such an old matlab version. If not, you have to run the installation script to recompile your sedumi binaries.

BTW, SeDuMiInt is pretty much deprecated.

yup, I'm using 2007b.
Do you means the whichcpx.dll file?
I checked my Sedumi 1.1 and the files i have are:

whichcpx.c
whichcpx.m
whichcpx.mex
whichcpx.dll.old

are the sedumi binaries auto compiled when i install the sedumi1.1?


I installed the Sedumi1.1 as follow:

addpath(genpath('G:\MATLAB\R2007b\toolbox\SeDuMi_1_1'))
cd('G:\MATLAB\R2007b\toolbox\SeDuMi_1_1')
install_sedumi

Am I correct in the installation?
I'm not good in this stuff.. thanks for your help

Did the install_sedumi code actually complete succesfully?

I am not sure what mex files are supposed to be called on 2007b, but if you compile them, I think they should be named correctly.

This is what i get after install_sedumi
It should be installed succesfully without error.

Done!
Adding SeDuMi to the Matlab path
Please save the Matlab path if you want to use SeDuMi from any directory.
Go to File/Set Path and click on Save.
SeDuMi has been succesfully installed. For more information type help sedumi or see the User guide.


by the way this is the version that can be installed, i try Sedumi 1.3, 1.21 and 105 before and they are all got errors when installation.

Before running install_sedumi, remove all mex and dll files in the sedumi directories, just to make sure there is nothing strange going own with old precompiled files.