Fig. 6From: Accelerating large-scale simulation of seismic wave propagation by multi-GPUs and three-dimensional domain decompositionSchematic illustration of ghost zone of a subdomain. Arrows denote the alignment of memory. (a) Non-contiguous memory alignment in the ghost zone (red arrows). The memory array of the internal points is extended to cover the ghost points. (b) Contiguous memory alignment. A memory buffer separate from that of the internal domain is used.Back to article page