# \[AMPL 25073\] Problems displaying the iterative process when running CPLEX 22.1.1 in AMPL.

**URL:** <https://discuss.ampl.com/t/ampl-25073-problems-displaying-the-iterative-process-when-running-cplex-22-1-1-in-ampl/2044>\
**Category:** Google Group Mirror\
**Created:** [January 28, 2025, 3:42am UTC](https://discuss.ampl.com/t/ampl-25073-problems-displaying-the-iterative-process-when-running-cplex-22-1-1-in-ampl/2044 "2025-01-28T03:42:34Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![AMPL\_Google\_Group](https://avatars.discourse-cdn.com/v4/letter/a/9dc877/32.png) [@AMPL\_Google\_Group](https://discuss.ampl.com/u/AMPL_Google_Group)\
**Post date:** [January 28, 2025, 3:42am UTC](https://discuss.ampl.com/t/ampl-25073-problems-displaying-the-iterative-process-when-running-cplex-22-1-1-in-ampl/2044/1 "2025-01-28T03:42:34Z")

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Good evening, I am currently facing an issue where I cannot display the iterative process when running CPLEX 22.1.1 in AMPL. Previously, I could see the iterative process with the options option cplex\_options “threads=0 mipdisplay=2”;, but now that I have requested a new license for AMPL for the year 2025, I can no longer see the iterative process when running my mathematical models. If anyone has a solution to this problem, I would greatly appreciate it.

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**Author:** ![4er](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.ampl.com/4er/32/530_2.png) [@4er](https://discuss.ampl.com/u/4er)\
**Post date:** [January 28, 2025, 4:45pm UTC](https://discuss.ampl.com/t/ampl-25073-problems-displaying-the-iterative-process-when-running-cplex-22-1-1-in-ampl/2044/2 "2025-01-28T16:45:29Z")

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Thanks for reporting this issue. The latest version of CPLEX for AMPL switched to the new [MP interface library](https://mp.ampl.com/index.html), which currently has this bug in handling mipdisplay=2. The bug has been reported, and will be fixed in the next CPLEX for AMPL release.

To work around the problem, you can use outlev=1 to see output similar to that of mipdisplay=2. Alternatively, you can temporarily go back to using the older ASL interface library, by selecting “option solver cplexasl;”.

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**Author:** ![AMPL\_Google\_Group1](https://avatars.discourse-cdn.com/v4/letter/a/a87d85/32.png) [@AMPL\_Google\_Group1](https://discuss.ampl.com/u/AMPL_Google_Group1)\
**Post date:** [January 28, 2025, 4:48pm UTC](https://discuss.ampl.com/t/ampl-25073-problems-displaying-the-iterative-process-when-running-cplex-22-1-1-in-ampl/2044/3 "2025-01-28T16:48:07Z")

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Your question has been moved to our new user forum at [discuss.ampl.com](http://discuss.ampl.com), and a response has been posted there. To see the response, use this link:

[https://discuss.ampl.com/t/ampl-25073-problems-displaying-the-iterative-process-when-running-cplex-22-1-1-in-ampl/2044/2](https://discuss.ampl.com/t/ampl-25073-problems-displaying-the-iterative-process-when-running-cplex-22-1-1-in-ampl/2044/2)

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