jenkfgdas_fcst_master.ecf (GFS v17) — Deep-Dive Analysis

Path: ecf/scripts/enkfgdas/forecast/jenkfgdas_fcst_master.ecf | Date: 2026-06-11

Summary

EnKF ensemble member forecast — runs the 9-hour coupled UFS Weather Model for a single ensemble member. Per-member _master template (80 members x 10 per job = 10 instances). Uses same JGLOBAL_FORECAST J-Job differentiated by ENSMEM.

Resources: 8 nodes, 128 cpus/node = 1,024 MPI ranks, exclusive, 30-min wall

Modules: ufswm | J-Job: JGLOBAL_FORECAST (shared)

Key exports: ENSMEM="%ENSMEM%", MEMDIR="%MEMDIR%", WGF

v17-specific notes

• 8 nodes per member (vs deterministic GDAS 95 nodes) — lower resolution ensemble.
• Same shared JGLOBAL_FORECAST J-Job — ENSMEM triggers ensemble config path.
• 30-min wall for 9-hour ensemble forecast at reduced resolution.
• 80 total ensemble members processed via _master template.