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Fig. 10 | Advances in Aerodynamics

Fig. 10

From: Accelerating CFD simulation with high order finite difference method on curvilinear coordinates for modern GPU clusters

Fig. 10

Comparison of WENO interpolations. In original WENO interpolation, the characteristic space is built at i+1/2, and \(u^{\pm }_{i+1/2}\) are computed simultaneously in a loop. In modified WENO interpolation, the characteristic space is built at i, and \(u^{-}_{i+1/2}\) and \(u^{+}_{i-1/2}\) are computed simultaneously in a loop. In modified WENO interpolation, point stencils are the same, so the characteristic variables and smoothness indicators are shared, thus it reduces calculation and global memory access

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