I have a model of hotel I run it first it take one hour then we make some changes now it was running from yesterday and still not completed.... what I need to do
IMHO, you should cancel the run, and use 'Check model' option for detailed checking of your model, to see what kind of errors or warnings are there. You will need to address the error or warning messages, before running the analysis again.
A good structural engineer is often a blessing for others.
Some of your structures that u added are unstable. Check also when the analysis is running the mode shapes to see if there is anything suspicious and if etabs is indicating some unstable structure.
If.not chexk that u have enough space on your disk. It may be as easy as this.