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Have you looked at integrating parallelisation via:
https://gitlab.com/lappsufrn/MulticoreParallelSimplex
explained in
[Pdf Paper](https://arxiv.org/pdf/1804.04737.pdf)
And of course better …
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A reference for dual mesh construction is [Busto's](https://mdpi-res.com/d_attachment/mathematics/mathematics-09-02972/article_deploy/mathematics-09-02972-v2.pdf?version=1637806891) article, titled "S…
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I am trying to determine whether the feasibility region of an MIP-relaxation is bounded or not. To do that, I pick a random objective and both minimize and maximize it, checking whether one of the pro…
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The documentation states:
Solver option: "simplex", "choose", "ipm" or "pdlp". If "simplex"/"ipm"/"pdlp" is chosen then, for a MIP (QP) the integrality constraint (quadratic term) will be ignored.
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I have tested the issue described below on two hotspots:
Hotspot 1: MMDVM HS Dual Hat (duplex) modem running firmware v1.4.17
Hotspot 2: Zumspot (simplex) modem running firmware v1.4.14
For eithe…
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CyLP is a Cython interface to COIN-OR’s Linear and mixed-integer program solvers (CLP, CBC, and CGL).
We should add a MILP backend that goes through CyLP, because the interface is much more complet…
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Many finite element schemes have a step where one commits a cell-wise variational crime of some kind to modify (some of) the terms in the variational form. UFL presently exposes (and Firedrake impleme…
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Observations:
1) For some examples (6x6, cyclo38) Bogdan's machine is about twice as fast as x4450.
2) Bad parallelization on both machines for these examples.
3) cyclo38 much, much slower than c…
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Sometimes one can use a fast numerical LP solver to solve a problem to "optimality",
then reconstruct the primal and dual solution in rational arithmetic (or over whatever base_ring was used...) an…
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https://github.com/opencobra/cobratoolbox/blob/f3fe20df5c977cf0d212e12b1763bd96d15c8760/src/base/solvers/solveCobraQP.m#L601
I appreciate that solveCobraQP checks the max residual in the solution. …