jgfs_atmos_postsnd.ecf (GFS v17)

Branch / tenant: dev/gfs.v17 (gw_v17) Path: ecf/scripts/gfs/product/atmos/jgfs_atmos_postsnd.ecf Analysis date: 2026-06-11

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Summary

jgfs_atmos_postsnd.ecf is the NCO production ecFlow task that generates BUFR sounding profiles from GFS forecast output at ~1800 station locations worldwide. These are used for MOS (Model Output Statistics), direct model output delivery, and aviation weather services. Single-instance per cycle, internally looping. Calls JGFS_ATMOS_POSTSND.

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1. Resources & Configuration

Field	Value
PBS resources	16 nodes, 9 mpiprocs, 14 OMP threads, 126 cpus/node, exclusive host, 2-hour wall
Modules	load_modules.sh run
J-Job	JGFS_ATMOS_POSTSND
Rocoto	postsnd.sh

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2. v17-specific notes

• Heavy resources: 16 nodes x 126 cpus = 2,016 cores. Large for parallel station extraction.
• Hybrid threading: 9 MPI x 14 OMP per node.
• Single-instance: processes all stations and forecast hours internally.
• 2-hour walltime: long due to 1800+ stations x full forecast range.
• BUFR output: station profiles in BUFR format for MOS/aviation.
• NCO ecFlow only: uses Rocoto breadcrumb postsnd.sh.

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Sources

• On-disk v17: ecf/scripts/gfs/product/atmos/jgfs_atmos_postsnd.ecf.