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Maros-Meszaros:QFORPLAN #20

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Maros-Meszaros:QFORPLAN#20

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@matteosantama
matteosantama
opened on Mar 19, 2026

Hi there!

First of all, thank you for this incredibly useful library. I'm opening this issue to report a small snag I've encountered: it appears mps is unable to parse the QFORPLAN problem in the Maros-Meszaros test set.

To reproduce the issue, download QPDATA2 from https://www.doc.ic.ac.uk/~im/. Unzip the problems with

unzip QPDATA2.zip -d QPDATA2

and then try to parse with

mps --input-path ./QPDATA2/QFORPLAN.QPS

Thanks again

Activity

  1. matteosantama commented on Mar 19, 2026

    @matteosantama
    matteosantama
    on Mar 19, 2026
    Author

    Hm, I think the file is poorly formed. Here are the first 7 lines:

    NAME          FORPLAN  (FORPLAN1)                                               
ROWS
 E  LC123   
 N  OB1PNW20
 E  DEDO3 1R
 E  DEDO3 2R
 E  DEDO3 3R

    Notice the row names have spaces in them.

  2. david-r-cox commented on Mar 20, 2026

    @david-r-cox
    david-r-cox
    on Mar 20, 2026
    Member

    Hey @matteosantama thank you for reporting this! Will take a look today.

  3. david-r-cox commented on Mar 20, 2026

    @david-r-cox
    david-r-cox
    on Mar 20, 2026
    Member

    @matteosantama this should be fixed by #19. lmk if you run into any other issues!

  4. david-r-cox
    closed this as completedon Mar 20, 2026
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