naming the output fle of reduce to the partition number

[abc xyz <fa...@yahoo.com>]

Hi Everyone,
I am having some problem with naming the output file of each reduce task  with 
the partition number. First of all, how can  I get the partition number  within 
each reduce? Second, How am I going to name the output file with that  partition 
number? 

I have looked to the MultipleTextOutputFormat. It can generate a new file  with 
the name of my choice for each key. But I want to name the output file for  each 
partition with the name of my choice i.e. with the partition number. 

Please help me in this regard.
 
Thanks