Another test with SnS has done,this time model changed ,not very big,but little complicated.
When solving the linear system,the progress bar goes back and forth,the same picture appears for nearly half an hour.Pls see the attachment.
I didn't know what‘s going on at first. So i terminated,and save the model to my workstation, a win7 64bit platform of course. I do know SnS havn't 64bit release,but more memory may make some doubts clear.
But it does't buy my attempt.Pls see the attachment,
So i leave it. When i came back, the solution has finished,even i don't know when did it happened,how much time did this case cost?
If you know pls tell me.