How to optimize number of threads per number of cores

How to optimize number of threads per number of cores

References

Reference NO 1

http://stackoverflow.com/questions/1718465/optimal-number-of-threads-per-core

Reference NO 2

http://stackoverflow.com/questions/6294789/optimal-number-of-threads-to-use

Reference NO 3

http://itexpertvoice.com/home/threads-or-cores-which-do-you-need/

Reference NO 4

http://serverfault.com/questions/357900/optimal-number-of-threads-for-compute-intensive-task-on-server-with-hyperthreadi

Reference NO 5

http://www.agner.org/optimize/blog/read.php?i=6

Reference NO 6

http://parsec.cs.princeton.edu/publications/iiswc62-pusukuri.pdf

Reference NO 7

http://msdn.microsoft.com/en-us/library/ee377050.aspx

Reference NO 8

http://en.wikipedia.org/wiki/Simultaneous_multithreading