NVIDIA interview questions

What performance tools or methods do you use to diagnose bottlenecks on an HPC cluster?

in coding que 1.combination matching of keys like used in old mobile phone if key is 23 then what combinatino could it be output the list of combination 2.minimun jumps required to go out of range in an array like array length is 5 you start from index 0 then 0+1 is 1 jump then second jumps could be 1+2 =3 so 3 index then next could be 3+4=7 then out of range so jumps =2 then in linux ques like default shell ,pkill -9 ,home directory symbol and few more in c,python it was 5/2 type ,pointer value symbol ,has a relationship is , python do [::-2] in gan and ml ,what is softmax , gan is what model , very simple question analytic include odd one out type que again way to easy