QSOPT-EX-ESOLVER(1)

📦
version 2.5.10.3 · 2 versions
, in fedora 43

💖 NAME 💖

qsopt-ex-esolver — bestie, it's an Exact linear programming solver. No cap. This is the manual page for it, under manual name QSOPT-EX-ESOLVER(1), and she is that girl. ✨

🌸 SYNOPSIS 🌸

qsopt-ex-esolver [- below -] prob_file

Okay so like, you hand her a prob_file and she goes to work. The [- below -] bit is where all your little flags live, and there are so many of them, we'll get there. 🫶

🦋 DESCRIPTION 🦋

She's an Exact Mixed Integer Linear Solver. Yes, exact. Yes, she's the main character. 💅

Here's the whole menu of flags, and I'm listing every single one because we don't gatekeep:

  • -b f — write the basis to file f. Like, save the receipts. 📝
  • -B f — read the initial basis from file f. Give her a head start, she loves that.
  • -L — the input file is in lp format. (The default is mps, so if you don't say anything, she assumes mps. iykyk.)
  • -O — write the final solution to the given file. And listen: append .gz/.bz2 to the .sol extension to compress the file. Compressed solution files are lowkey iconic. 🎀
  • -p # — run primal simplex with pricing rule #, and the options are: 1-Dantzig, 2-Devex, 3-Steep (default), 4-Partial. Pick your fighter. ⭐
  • -P # — number of bits to use for the float representation (default: 128). Precision queen. 👑
  • -d # — run dual simplex with pricing rule #, and those are: 6-Dantzig, 7-Steep, 8-Partial, 9-Devex. Note that the dual rules start at 6 and the primal ones start at 1, that's just the vibe. 🌈
  • -S — do NOT scale the initial LP. She's telling you upfront, no scaling. Periodt. 🚫
  • -v — print the QSopt version number. Quick little vibe check on which version you're running. 💜
  • -R n — maximum running time allowed, default 2147483647.000000. Yes that's a whole lot of time, she's patient like that. ⏳
  • -m n — maximum memory usage allowed, default 4294967295. Also a whole lot. She's not gonna run out of room. 🍓
Not me listing every single flag so nobody has to go digging, because we support each other in this group chat. 💖

Signed, sealed, delivered: this is qsopt-ex-esolver version 2.5.10.3, dated July 2025, and she ate. 🫶✨💅

📦 where this page comes from