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Simulations, Data Analysis and Algorithms

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Figure 1 | Computational Astrophysics and Cosmology

Figure 1

From: In situ and in-transit analysis of cosmological simulations

Figure 1

Example schematic illustrating data movement of block-structured grids from the simulation MPI group to the sidecar group when running in-transit. Each Box is uniquely numbered, and Boxes shaded in the same color are located on the same MPI process, whose rank is identified in parentheses. In this example, a grid composed of 16 Boxes moves from a distribution across 4 processes, with 4 Boxes per process, to a new distribution across 2 processes, with 8 Boxes per process.

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