I am comparing speed of my iterative solver in VB.NET and iterative solvers in Math.NET. When I am using preconditioner with Math.NET iterative solvers, everything is good and it converged at about 0.1~0.2(s) but without preconditioner calculation was canceled at about 0.03(s). Status is Canceled (by user). Since I didn't cancel the calculation and I even don't know how I could cancel calulation by myself. I don't know source of problem. I have my own iterative solvers and sometime when convergence is not fast and it takes more than 2 minutes, visual studio became paused by itself, I don't know why?! I think visual studio canceled the calculation. Do you know how to solve this weird problem? By the way, I am using VS2015.1 and Math.NET 3.4, and I am using VB over 10 years.
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I finally find it out. It was because of .NET "ContextSwitchDeadlock", and by disabling it in exception dialog (Ctrl+Alt+e), it completely resolved.
Amin
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