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Checkpoint/Restart for Lagrangian particle mesh with AMR in community code FLASH-X

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arxiv 2103.04267 v1 pith:L5X7RZ5N submitted 2021-03-07 cs.DC

Rajeev Jain , Klaus Weide , Saurabh Chawdhary , Thomas Klostermann This is my paper · ORCID
classification cs.DC
keywords flash-xmeshcheckpointcodecommunityaccomplishingadvantagesalong
verification ladder T0 review T1 audit T2 compute T3 formal
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In this work we present the design decisions and advantages for accomplishing cross mesh format checkpoint-restart in community code FLASH-X. AMReX and Paramesh are the two AMR mesh formats developed and supported by FLASH-X. We also highlight strong and weak scaling study of existing HDF5 I/O checkpoint writing along with new ideas and results (presented during talk) for utilizing heterogeneous compute architectures for improved I/O performance.

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