native Apple Silicon version

[rdzman]

I'd like to compile a version with a native Apple Silicon version of MATLAB.

I have successfully built Ipopt (using coinbrew) and an Octave MEX interface, but I am afraid I don't know how to get mexIPOPT to recognize the version of Ipopt I built from source when building for MATLAB.

Can you give me some pointers here? Or do you have a precompiled version for a native Apple Silicon version of MATLAB?

Thanks.

[ebertolazzi]

Sorry, I do not have an ARM, however on sept. I will ask a friend to give me an ARM to try a compilation and see where the problems are.

[rdzman]

I'm happy to give it a try on my new M2 MacBook Pro if you are able to help walk me through it.

[rdzman]

Any update on this? I'm very eager to get this working. Let me know if I can help test or anything.

[rdzman]

I got it working!

1. Install Ipopt and its dependencies via Homebrew.

   brew install ipopt
   

2. Clone this repo.

   git clone https://github.com/ebertolazzi/mexIPOPT.git
   

3. Apply this patch (homebrew_ipopt.patch) to toolbox/CompileIpoptMexLib.m.

   cd mexIPOPT/toolbox
   patch -u -b CompileIpoptMexLib.m -i homebrew_ipopt.patch
   

4. Run CompileIpoptMexLib at the Matlab prompt from the mexIPOPT/toolbox directory.

5. Copy toolbox/bin/osx/ipopt_osx.mexmaca64 to ipopt.mexmaca64 somewhere in your Matlab path (along with toolbox/lib/ipopt_auxdata.m).

6. Run an example ...

   >> cd examples
   >> examplehs071
   This is Ipopt version 3.14.13, running with linear solver MUMPS 5.6.2.
   
   Number of nonzeros in equality constraint Jacobian...:        4
   Number of nonzeros in inequality constraint Jacobian.:        4
   Number of nonzeros in Lagrangian Hessian.............:       10
   
   Total number of variables............................:        4
                        variables with only lower bounds:        0
                   variables with lower and upper bounds:        4
                        variables with only upper bounds:        0
   Total number of equality constraints.................:        1
   Total number of inequality constraints...............:        1
           inequality constraints with only lower bounds:        1
      inequality constraints with lower and upper bounds:        0
           inequality constraints with only upper bounds:        0
   
   iter    objective    inf_pr   inf_du lg(mu)  ||d||  lg(rg) alpha_du alpha_pr  ls
      0  1.6109693e+01 1.12e+01 3.89e+01   0.0 0.00e+00    -  0.00e+00 0.00e+00   0
      1  2.3652710e+01 1.12e+00 1.22e+01  -0.5 1.22e+01    -  9.80e-02 1.00e+00h  1
      2  1.7171955e+01 9.56e-01 1.14e+01  -0.0 4.59e+01    -  9.92e-01 2.70e-01f  1
      3  1.7506115e+01 3.03e-02 3.00e-01  -0.7 3.06e-01    -  1.00e+00 1.00e+00h  1
      4  1.7002639e+01 1.22e-01 3.20e-02  -1.3 3.46e-01    -  9.59e-01 1.00e+00f  1
      5  1.6970896e+01 8.58e-02 2.37e-02  -2.9 8.74e-02    -  9.33e-01 1.00e+00h  1
      6  1.7013026e+01 2.34e-03 5.93e-04  -4.2 1.77e-02    -  1.00e+00 1.00e+00h  1
      7  1.7014017e+01 4.01e-06 1.49e-06  -5.9 8.07e-04    -  1.00e+00 1.00e+00h  1
      8  1.7014017e+01 1.42e-10 1.30e-10 -11.0 3.76e-06    -  1.00e+00 1.00e+00h  1
   
   Number of Iterations....: 8
   
                                      (scaled)                 (unscaled)
   Objective...............:   1.7014017140162622e+01    1.7014017140162622e+01
   Dual infeasibility......:   1.2966117155257268e-10    1.2966117155257268e-10
   Constraint violation....:   1.4200551845533482e-10    1.4200551845533482e-10
   Variable bound violation:   9.9621045857034574e-09    9.9621045857034574e-09
   Complementarity.........:   4.1225384883754112e-11    4.1225384883754112e-11
   Overall NLP error.......:   1.4200551845533482e-10    1.4200551845533482e-10
   
   
   Number of objective function evaluations             = 9
   Number of objective gradient evaluations             = 9
   Number of equality constraint evaluations            = 9
   Number of inequality constraint evaluations          = 10
   Number of equality constraint Jacobian evaluations   = 9
   Number of inequality constraint Jacobian evaluations = 9
   Number of Lagrangian Hessian evaluations             = 8
   Total seconds in IPOPT                               = 0.015
   
   EXIT: Optimal Solution Found.
   
   ans =
   
       1.0000    4.7430    3.8211    1.3794
   

[anilvrao]

Did I do something wrong? I get the following error:

Operands to the logical AND (&&) and OR (||) operators must be convertible to logical scalar values. Use the ANY or ALL functions to reduce operands to
logical scalar values.

Error in ipopt (line 264)
elseif strcmp( cmp, 'MACI64') == 1 || regexp( cmp, 'x86_64-apple-darwin') == 1

Error in examplehs038 (line 57)
[x info] = ipopt(x0,funcs,options);

[anilvrao]

Here is what I get when I build the Mex file after installing the patch you provided:

---

mex -largeArrayDims -Isrc ./src/ipopt.cc ./src/IpoptInterfaceCommon.cc -Isrc_ipopt_osx/coin-or -DOS_MAC -output bin/osx/ipopt_osx -L/opt/homebrew/lib -lipopt /opt/homebrew/lib/gcc/current/libquadmath.dylibLDFLAGS='$LDFLAGS -Wl,-rpath,. -framework Accelerate -ldl' CXXFLAGS='$CXXFLAGS -Wall -O2 -g'
Building with 'Xcode Clang++'.
/Users/anilvrao/Desktop/mexIPOPT/toolbox/./src/IpoptInterfaceCommon.cc:1890:15: warning: 'vsprintf' is deprecated: This function is provided for compatibility reasons only. Due to security concerns inherent in the design of sprintf(3), it is highly recommended that you use vsnprintf(3) instead. [-Wdeprecated-declarations]
nchar = vsprintf(s,pformat,ap);
^
/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX14.0.sdk/usr/include/stdio.h:199:1: note: 'vsprintf' has been explicitly marked deprecated here
__deprecated_msg("This function is provided for compatibility reasons only. Due to security concerns inherent in the design of sprintf(3), it is highly recommended that you use vsnprintf(3) instead.")
^
/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX14.0.sdk/usr/include/sys/cdefs.h:215:48: note: expanded from macro '__deprecated_msg'
#define __deprecated_msg(_msg) attribute((deprecated(_msg)))
^
1 warning generated.

ld: warning: -undefined error is deprecated
ld: warning: -undefined error is deprecated

MEX completed successfully.
----------------------- DONE ----------------------------

[anilvrao]

Did you complete your build with clang and clang++ or with gcc and g++?

[anilvrao]

Can you send me your Mex file?

[rdzman]

Did I do something wrong? I get the following error:

Operands to the logical AND (&&) and OR (||) operators must be convertible to logical scalar values. Use the ANY or ALL functions to reduce operands to logical scalar values.

Error in ipopt (line 264) elseif strcmp( cmp, 'MACI64') == 1 || regexp( cmp, 'x86_64-apple-darwin') == 1

Error in examplehs038 (line 57) [x info] = ipopt(x0,funcs,options);

I think the issue here is that you have ebertolazzi's ipopt.m in your path. I find that it does a lot of unnecessary stuff to figure out which mex file to call. If you just rename your MEX file to ipopt.mexmaca64 and get rid of ipopt.m I think it should work.

[rdzman]

Did you complete your build with clang and clang++ or with gcc and g++?

Not actually sure what it uses. I just built it with that patched M-file and it worked for me.

[anilvrao]

I do not have the ipopt.m file used by ebertolazzi in my path. I have only the Mex file in my MATLAB path. I am not sure if I need to reinstall homebrew from scratch.

[rdzman]

If you type which ipopt at the MATLAB prompt what does it return?

[anilvrao]

It returns the location of the Mex file that I compiled using your instructions. —— Anil V. Rao, PhD E-mail: ***@***.*** Tel: 352-672-1529 Web:  http://anilvrao.com

…

On Nov 16, 2023 at 9:03 PM -0500, Ray Zimmerman ***@***.***>, wrote: If you type which ipopt what does it return? — Reply to this email directly, view it on GitHub, or unsubscribe. You are receiving this because you commented.Message ID: ***@***.***>

[rdzman]

Ah ... it looks like the examplehs038.m file temporarily adds the ipopt.m to the path. Try one of the other examples.

[anilvrao]

I tried both examplehs038 and examplehs071.  Neither one works and they give the error I posted in my earlier comment. —— Anil V. Rao, PhD E-mail: ***@***.*** Tel: 352-672-1529 Web:  http://anilvrao.com

…

On Nov 16, 2023 at 9:32 PM -0500, Ray Zimmerman ***@***.***>, wrote: Ah ... it looks like the examplehs038.m file temporarily adds the ipopt.m to the path. Try one of the other examples. — Reply to this email directly, view it on GitHub, or unsubscribe. You are receiving this because you commented.Message ID: ***@***.***>