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doomlab.github.io
| | johnjr.dev

Callbacks in Cplex I used LazyConstraintCallback to implement a Branch and Cut algorithm with CPLEX, but when I implemented and run this algorithm, it was very slow if I compare it with its version that doesn't use callbacks in Cplex. The reason is because ControlCallback(LazyConstraintCallback is a ControlCallback) switch Cplex to sequential mode by default and turn off dynamic search. I wrote this post, because I didn't find this information in Cplex's documentation, I only found it in this technical forum.
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| | caleb-vincent.io

Hand drawing of a buffet designed to mid-thigh height so it could also be used as an entertainment console
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| | caleb-vincent.io

Hand sketches of possible shelving designs
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| | dustymabe.com

Hey everyone! Fedora 22 is on the cusp of being released and the Fedora Cloud Working Group has elected to organize a test day for May 7th in order to work out some bugs before shipping it off to the rest of the world. With a new release comes some new features and tools. We are working on Vagrant images as well as a testing tool called Tunir. Joe Brockmeier has a nice writeup about Vagrant and Kushal Das maintains some docs on Tunir.
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