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. Author manuscript; available in PMC: 2010 Aug 1.
Published in final edited form as: Appl Numer Math. 2009 Aug;59(8):1970–1988. doi: 10.1016/j.apnum.2009.02.006

Fig. 4.

Fig. 4

Fig. 4

Fig. 4

Fig. 4

Fig. 4

Fig. 4

maxRE(%) versus PCG solver ACCURACY (see Algorithm 1 and Section 3.5) for models tet503K of group 1 (left column) and tet508K of group 2 (right column) for the AMG-CG (top row), the IC(0)-CG (middle row) and the Jacobi-CG (bottom row). Source orientations and potential approaches can be distinguished by their specific labels. The plot is in log-log scale.