Issue installing cplex

[franciscozorrilla]

Hello,

When I try running "carve my.faa" I get the following:

Traceback (most recent call last): File "/c3se/users/zorrilla/Hebbe/.conda/envs/snakemake_env/bin/carve", line 343, in hard=args.hard File "/c3se/users/zorrilla/Hebbe/.conda/envs/snakemake_env/bin/carve", line 183, in main debug_output=debug_output) File "/c3se/users/zorrilla/Hebbe/.conda/envs/snakemake_env/lib/python3.6/site-packages/carveme/reconstruction/carving.py", line 227, in carve_model debug_output=debug_output) File "/c3se/users/zorrilla/Hebbe/.conda/envs/snakemake_env/lib/python3.6/site-packages/carveme/reconstruction/carving.py", line 171, in minmax_reduction solution = solver.solve() File "/c3se/users/zorrilla/Hebbe/.conda/envs/snakemake_env/lib/python3.6/site-packages/framed/solvers/cplex_interface.py", line 308, in solve problem.solve() File "/c3se/users/zorrilla/Hebbe/.conda/envs/snakemake_env/lib/python3.6/site-packages/cplex/init.py", line 1099, in solve _proc.mipopt(self._env._e, self._lp) File "/c3se/users/zorrilla/Hebbe/.conda/envs/snakemake_env/lib/python3.6/site-packages/cplex/_internal/_procedural.py", line 629, in mipopt check_status(env, status) File "/c3se/users/zorrilla/Hebbe/.conda/envs/snakemake_env/lib/python3.6/site-packages/cplex/_internal/_procedural.py", line 303, in call raise CplexSolverError(error_string, env, status) cplex.exceptions.errors.CplexSolverError: CPLEX Error 1016: Promotional version. Problem size limits exceeded.

From what I can tell, it looks like maybe I have not installed cplex properly? I tried using both pip and conda, but I get the same error messages telling me that I have a promotional version. I followed the installation instructions on the readthedocs page, and the IBM page it references. However, I cannot find the "setup.py" file, nor the path required to set PYTHONPATH in order to set up the python API, because I am working on a server/cluster. Any advice on how I can fix this issue?

Regards, Francisco

[rdmtinez]

Installing CPLEX is a bit complicated, here's how I got it done.

I would recommend creating a "CARVEME" environment and doing as follows (in ubuntu):

`#create virtual environment with anaconda & activate it

$ conda create -n carve-environment
$ conda activate carve-environmetn

    ### INSTALL THE FOLLOWING inside this environment

    #carveme

pip install carveme

#diamond
````````
wget http://github.com/bbuchfink/diamond/releases/download/v0.9.22/diamond-linux64.tar.gz
tar xzf diamond-linux64.tar.gz

#cplex installation---download the file from IBM (must first get a free lincese from IBM)
`````````````````````````````````````````````````````````````````````````````````````````
~create "./anaconda3/opt/" folder
$ bash cplex_studio128.linux-x86-64.bin

    ~when prompted by the installer use the following installation path
        /home/username/anaconda3/opt/ibm/ILOG/CPLEX_Studio128

#python CPLEX api set-up
````````````````````````
~go to the following folder within this environment:

cd ~/anaconda3/opt/ibm/ILOG/CPLEX_Studio128/cplex/python/3.6/x86-64_linux
--pay attention here-----   python_version_to_use-^     ^-your_comps_architecture

#execute the following from within that folder^
python setup.py install`

[cdanielmachado]

@francisco It seems you installed the promotional version of cplex which cannot handle large problems. You need to install the full version.

@rdmtinez you can do it without a dedicated environment, but I would also recommend doing everything inside a conda environment.

[franciscozorrilla]

Got it to work! thanks for the quick response @cdanielmachado @rdmtinez

[Rakshith-Manandi]

Could you give me the steps to install CPLEX on a mac? I tried registering on the IBM website but I was only able to download the desktop version of CPLEX optimizer. Not sure if this is the one needed. Also, I wasn't able to set up the Python API as well.

[ghost]

Hello, could someone confirm that carveme is working with cplex academic version (I am not sure if "academic" means full version, it seems impossible to find this any cplex documentation) on a mac (python 3.8)? I have tried all solutions already posted, but I keep getting "cplex.exceptions.errors.CplexSolverError: CPLEX Error 1016: Community Edition. Problem size limits exceeded". Thank you so much in advance

[cdanielmachado]

Answered here: https://github.com/cdanielmachado/carveme/issues/113