Find Highest Number

hello all,

i'm not new to SQL but i cant seem to get this right:
hope some one will:

how to find highest unique number of a certain column(val)for a specific name(name is in INPUT parameter)

i.e :

id | name | val
---------------
1 | name1 | 2.7
2 | name1 | 3.5
3 | name1 | 3.5
4 | name1 | 3.5
5 | name1 | 1.3
6 | name2 | 3.1
7 | name2 | 3.1
8 | name2 | 2.9

requested result:
if input param(name)=name1

result:
1 | name1 | 2.7

if input param(name)=name2

result:
8 | name2 | 2.9

hope some one can write the sql cmd for this
i'll be grateful !
thank you!