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-   -   Pre-conditioning conjugate gradient method. (http://www.cfd-online.com/Forums/main/14266-pre-conditioning-conjugate-gradient-method.html)

Prashanth October 17, 2007 13:52

Pre-conditioning conjugate gradient method.
 
I had a question on pre-CGM,pls help with the soln.

question:

A student claims that he is getting a numerical soln which matches the exact soln upto 1/16 th decimal place and no. of iterations the preconditioning solver is taking to reach convergence of order 1e-8 is equal to the no. of discretized equations which he is solving.Is the claim true? explain?


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