Originally posted by: Kevin Pauli

We have CPLEX Enterprise Server running on premises, to which we are able to submit OPL jobs.  However we also need to be able to submit models implemented in Python with docplex.  Has anyone done this?

Hi,

CPLEX Enterprise Server only runs OPL jobs

But you could log a Request For Enhancement:

http://www-01.ibm.com/support/docview.wss?uid=swg21659629

If you need to run your docplex models behind the firewall you could have a look at DSX local :

https://datascience.ibm.com/blog/introducing-ibm-data-science-experience-local/

https://datascience.ibm.com/docs/content/DO/UpgradingDO.html

regards

Originally posted by: Kevin Pauli

Thanks.  Reading about DSX local I see it says:

"DSX Local and Desktop users have access to the Community Edition of the CPLEX engines. This makes it possible to solve problems with up to 1000 constraints and 1000 variables, or with a search space of 1000 X 1000 for constraint programming problems."

However, we would want to be able to solve larger problems, on prem, using Python/docplex.

Right and for that you may read:

DSX Local ships with its own Decision Optimization private cloud service. This service requires a DOcplexcloud Local API key for use with larger models.

regards

Originally posted by: Kevin Pauli

Thanks, Alex.

Unfortunately our corporate information security policy prohibits the transmission of our IP (including models and data) to a third party, so DOcplexcloud is out of the question.

I have taken your suggestion and submitted Request for Enhancement at https://www.ibm.com/developerworks/rfe/execute?use_case=viewRfe&CR_ID=112842

Anyone reading this who is the same boat, please go vote for it.  :(

Hi,

I have tweeted your wish :

https://twitter.com/AlexFleischer1/status/928655308049801219

In

DSX Local ships with its own Decision Optimization private cloud service. This service requires a DOcplexcloud Local API key for use with larger models.

the key name has cloud but the key is local and the solve is local too, so nothing will happen in the cloud

regards

https://twitter.com/AlexFleischer1/status/928655308049801219

Originally posted by: Kevin Pauli

Ah, I see, I misunderstood.  It is your own private DOcplexcloud!  Ok, we can investigate this avenue.  Thank you!!!

One other thing while I have your attention, if you would be so kind...

We have other data scientists who would prefer to use Java.  Is Java supported in DSX Local?

Hi,

if you use java then I think

CPLEX Enterprise Server https://www.ibm.com/developerworks/library/co-ind-ilog-cplex/index.html 

or

Decision Optimization Server Optimization Server

make more sense

regards

Originally posted by: Kevin Pauli

Yes we are currently evaluating CPLEX Enterprise Server, we have it up and running.  

I have seen that article, and I do see where it says there is a Java client library for talking with the CES server, but from what it describes, the model still has to be OPL.  I was wondering if there is a way to write the model itself in Java, and have it solved on CES.

Hi,

with CES the entry point should be an OPL model but this can be a main flow control that calls java through external java call

regards