Following a discussion during yesterday's team call, I emailed the developers to see if anybody could shed any light on the relative merits of the two solvers provided in Calc 6.2.

For information, I am forwarding the response from Kohei Yoshida which contains a useful link to a paper comparing various open source linear program solvers (including the two that we provide, lp_solve and CoinMP).

Regards,

Steve Fanning


------ Forwarded Message ------
From: "Kohei Yoshida" <[email protected]>
To: "Steve Fanning" <[email protected]>; [email protected]
Sent: 27/06/2019 12:58:10
Subject: Re: LO Calc - Question About Solver Engines

Hi Steve,

 On June 26, 2019 at 5:02 PM Steve Fanning <[email protected]> wrote:

 Is it possible for a developer with appropriate knowledge to provide me with 
some indication of why a user might want to use one engine in preference to the 
other? Are there circumstances in which one is likely to perform better than 
the other?

I for one did not do any sort of fair comparisons, but I found the following 
paper which may help:

https://prod-ng.sandia.gov/techlib-noauth/access-control.cgi/2013/138847.pdf

You can skip to the conclusions on page 33 to get the summary of their 
comparisons.  CLP == CoinMP as far as I can tell.

Kohei

--
Kohei Yoshida, LibreOffice Calc volunteer hacker
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