Lemon: an MPI parallel I/O library for data encapsulation using LIME

Details Lemon: an MPI parallel I/O library for data encapsulation using LIME Lemon: an MPI parallel I/O library for data encapsulation using LIME

2011-06-21

arxiv.org/abs/1106.4177v1

Physics

High Energy Physics

High Energy Physics - Lattice

Scientific paper

We introduce Lemon, an MPI parallel I/O library that is intended to allow for efficient parallel I/O of both binary and metadata on massively parallel architectures. Motivated by the demands of the Lattice Quantum Chromodynamics community, the data is stored in the SciDAC Lattice QCD Interchange Message Encapsulation format. This format allows for storing large blocks of binary data and corresponding metadata in the same file. Even if designed for LQCD needs, this format might be useful for any application with this type of data profile. The design, implementation and application of Lemon are described. We conclude with presenting the excellent scaling properties of Lemon on state of the art high performance computers.

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