Implementation



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Implementation

   

CGS requires about the same number of operations per iteration as BiCG, but does not involve computations with . Hence, in circumstances where computation with is impractical, CGS may be attractive.

The pseudocode for the Preconditioned Conjugate Gradient Squared Method with preconditioner is given in Figure gif.    



Jack Dongarra
Mon Nov 20 08:52:54 EST 1995