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Hi Don, Thank you for the detailed reply and the benchmark result. I checked my environment and found that I am currently running: * `l2gen 9.11.0-V2025.5` * Ubuntu 22.04.3 * Linux kernel `5.15.0-86-generic` So my setup is different from yours, since you tested with `OCSSW V2026.0 arch=odps`. I am n...

**Title:** MODIS `l2gen` is very slow at 500 m resolution from existing L1B+GEO files — any recommended parameters or workflow improvements? Hello SeaDAS / OCSSW team, I am processing **MODIS Aqua** data with **existing L1B and GEO files**, and generating L2 products at **500 m resolution** using `l...