On Mon, Sep 8, 2008 at 2:25 AM, Sandy <[EMAIL PROTECTED]> wrote:

> Hi,
>
> This may be a silly question, but I'm strangely having trouble finding an
> answer for it (perhaps I'm looking in the wrong places?).
>
> Suppose I have a cluster with n nodes each with m processors.
>
> I wish to test the performance of, say,  the wordcount program on k
> processors, where k is varied from k = 1 ... nm.


You can  specify the number of tasks for each node in your hadoop-site.xml
file.
So you can get k varied from k = n, 2*n....m*n instead of k = 1...nm.


> How would I do this? I'm having trouble finding the proper command line
> option in the commands manual (
> http://hadoop.apache.org/core/docs/current/commands_manual.html)
>
>
>
> Thank you very much for you time.
>
> -SM
>



-- 
[EMAIL PROTECTED]
Institute of Computing Technology, Chinese Academy of Sciences, Beijing.

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