Spectral line polarization with angle-dependent partial frequency redistribution - II. Accelerated lambda iteration and scattering expansion methods for the Rayleigh scattering

M. Sampoorna; K. N. Nagendra; H. Frisch

doi:10.1051/0004-6361/201015813

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Volume 527 (March 2011)

A&A, 527 (2011) A89

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Table 1

CPU time requirements for the iterative methods after the calculation of the azimuthal coefficients , Q = 0,1,2.

Method	CPU time (s) to compute

	Λ^∗	A^-1			No. of iteration × time/iteration	Total

Scattering expansion	0.09	–	27	15	36 × 8.13 = 293	335
ALI with core-wing	1.00	–	–	–	62 × 10.19 = 632	633
ALI with FABFA	1.00	29087	–	–	61 × 27.98 = 1707	30795

Notes. The coefficients are not needed because the model used has Γ_E/Γ_R = 0; it is the same as in Figs. 3–5. The computations are performed on a Sun Fire V20z Server, 2385 MHz, with a Single-core AMD Opteron processor.

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