Memory Corruption Issue on Multiple Calls about csipopt HOT 3 OPEN

Hello Hugues, Yes I did find a solution to this problem. I posted it back then but see that it is not shown in the thread for some reason. Regardless, here it is. I have a class that inherits IpoptProblem as I’m sure you do as well. Whenever I want to execute a solve, I declare a new instance of my IpoptProblem derivative using Using notation (in VB.NET, using in C#) as below. ' ndv is the number of design variables. Dim objVal = Double.MinValue Dim x(ndv - 1) As Double ' Solver inherits IpoptProblem Using s As New Solver( ....) s.AddOption("print_level", 0) s.AddOption(... ... stat = s.SolveProblem(x, objVal) End Using Of course the ellipsis’ above would be replaced by appropriate arguments and statements. For whatever reason, this results in proper release of resources and no memory corruption or leaking. Hope this helps, John From: Hugues Stefanski [mailto:[email protected]] Sent: Wednesday, November 22, 2017 12:48 AM To: cureos/csipopt <[email protected]> Cc: johneddy101 <[email protected]>; Author <[email protected]> Subject: Re: [cureos/csipopt] Memory Corruption Issue on Multiple Calls (#5) Hi, I know it's 4 years later, but did you by any chance find a solution to this? I just ran into this same problem yesterday... I realized that disposing the problem does not seem to release all resources: when processing multiple problems in the same process, the log files report increasing CPU time from resolution to resolution, and the heading line is only reported once. I herewith enclosed the log files from running the same problem twice in a unit test. Any hint on how to go from there? ipopt.unittest2.txt <https://github.com/cureos/csipopt/files/1495000/ipopt.unittest2.txt> ipopt.unittest0.txt <https://github.com/cureos/csipopt/files/1495001/ipopt.unittest0.txt> ipopt.unittest1.txt <https://github.com/cureos/csipopt/files/1495002/ipopt.unittest1.txt> — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#5 (comment)> , or mute the thread <https://github.com/notifications/unsubscribe-auth/AFTf45OsET3J-bW70tBXAzryTcNJsKaLks5s49GjgaJpZM4BC2mO> .