no result because solver cannot go on?

[Weiwei Yao]

Dear Professor,

By varying a constant constantly in a for-loop code, I can observe some other sdpvar variables trend easily. But now seems no results can be calculated for some particular constant in that for-loop. No result no matter how long.   code following

ops=sdpsettings('solver','gurobi','gurobi.NodeLimit',1500,'gurobi.MIPGap',1.0e-01);

[Weiwei Yao]

And my computer CPU utilization is always 100% in some cases.

[Johan Löfberg]

You mean that it stalls forever after 5 seconds?

Then it smells like a bug, and all you can do is to start tweaking various options in gurobi to see if you can get rid of it, such as tweaking cutting strategies, presolves, priorities etc etc, i.e. random testing)

[Weiwei Yao]

I change another PC and problem solved,  but I dont know why.  Anyway thank you all!