Also of course I am running 1 map task per core which creates full CPU
load. If your have 4 cores  well then running 8 mappers will double the map
task running time in your case. These tasks are CPU bound. The optimal
running time for ssvd is achieved with 1 map task per core.
On Dec 19, 2011 12:09 AM, "Dmitriy Lyubimov" <[email protected]> wrote:

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