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ILDG-5 Implementation Update: SciDAC File Format Support at University of Utah

The ILDG-5 project at the University of Utah advances the SciDAC file format to support metadata and binary data, focusing on lattice fields and global data needs. It integrates open software like QIO/LIME and is currently utilized by LHPC. The file structure allows for vast data storage (up to 2^64 bytes) through messages with headers containing a content type label. The system proposes enhancements to incorporate ILDG format metadata and additional structures like QCDML and BinX records, ensuring usability for propagators and varied fields in research.

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ILDG-5 Implementation Update: SciDAC File Format Support at University of Utah

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  1. ILDG Implementation Status Carleton DeTar University of Utah ILDG-5

  2. SciDAC File Format • Supports metadata and binary data • Supports lattice fields and “global” data • Tries to anticipate ILDG needs • Open software QIO/LIME • In production use by LHPC

  3. LIME Packaging • MIME >> DIME >> LIME • Very simple. Allows 2^64 bytes • File consists of messages • Message consists of records • Record consists of a header and data • Header includes a content type label

  4. SciDAC Gauge Configuration File • Private file header • User file XML (not standardized, yet) • Private record header • User record XML (not standardized) • Binary data in NERSC 3x3 format • SciDAC Checksum

  5. ILDG Compatibility • Propose LIME packaging • Could add ILDG format metadata • Could add QCDML • Could add BinX record • Can do propagators or other fields

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