Investors & landlords

Thank you so much for helping me out! I can find passive loss carryover based on last year's 8582.  But I have no idea on at-risk loss carry over. Specifically I have two questions,

 

1. Is at-risk loss carryover the same as passive loss carryover? Or it is totally different thing. The two are independent.

2. How to find the number of at-risk loss carry over based on last year's return?