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Improving mapping for sparse direct solvers: A trade-off between data locality and load balancing

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Academic year: 2021

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Figure

Figure 1: Illustration of proportional mapping: elimination tree on the left, and Gantt diagram on the right.
Figure 2: Structure of the computation: tree of supernodes, each supernodes being made of several tasks.
Figure 6: Estimated factorization time (left ), and that of PropMap , Steal , and StealLocal , normalized to All2All (right).

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