DECOMPOSEPAR(1)

💖 DECOMPOSEPAR 💖

okay so bestie, welcome to decomposePar, straight out of the OpenFOAM Commands Manual — it's part of OpenFOAM (The Open Source CFD Toolbox) and it's literally the girl who splits your whole case up so it can run in parallel. main character energy fr fr 👑

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✨ NAME ✨

decomposePar — part of OpenFOAM (The Open Source CFD Toolbox). that's it, that's the name, no notes 💅

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🦋 SYNOPSIS 🦋

decomposePar [OPTIONS]

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🌸 DESCRIPTION 🌸

Decompose a mesh and fields of a case for parallel execution. yes queen, that's the whole vibe — you hand her a case, she hands you back a bunch of processor* directories ready to run in parallel 🫶

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🎀 OPTIONS 🎀

• -allRegions — operate on all regions in regionProperties. not just one, all of them. she's generous like that ✨
• -case dir — specify the case directory to use (instead of the cwd). don't make her guess where you live 😭
• -cellDist — write cell distribution as a labelList — for use with the manual decomposition method and as a volScalarField for visualization. so you can literally see the vibes 🔥
• -constant — include the constant/ dir in the times list
• -copyUniform — copy any uniform/ directories too
• -copyZero — copy 0/ directory to processor*/ rather than decompose the fields. she just copies, she doesn't touch 🫣
• -decomposeParDict file — use the specified file for the decomposePar dictionary
• -dry-run — test without writing the decomposition. changes -cellDist to only write volScalarField. it's giving "rehearsal, not the show" 💀
• -fields — use existing geometry decomposition and convert fields only
• -force — remove existing processor*/ subdirs before decomposing the geometry. she's not asking, she's deleting 💅
• -ifRequired — only decompose geometry if the number of domains has changed
• -latestTime — select the latest time
• -noSets — skip decomposing cellSets, faceSets, pointSets
• -noZero — exclude the 0/ dir from the times list
• -region name — specify alternative mesh region
• -time ranges — list of ranges. eg, ':10,20 40:70 1000:', 'none', etc
• -verbose — additional verbosity. she will NOT stop talking and honestly? we love that for her 🌈
• -doc — display documentation in browser
• -help — display short help and exit
• -help-full — display full help and exit

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💜 ADVANCED OPTIONS 💜

these are the deep-lore options. you probably don't need them, but if you do, they're right here bestie 🧚

• -debug-switch name=val — specify the value of a registered debug switch. default is 1 if the value is omitted. (can be used multiple times)
• -fileHandler handler — override the file handler type
• -info-switch name=val — specify the value of a registered info switch. default is 1 if the value is omitted. (can be used multiple times)
• -lib name — additional library or library list to load (can be used multiple times)
• -noFunctionObjects — do not execute function objects
• -opt-switch name=val — specify the value of a registered optimisation switch (int/bool). default is 1 if the value is omitted. (can be used multiple times)
• -doc-source — display source code in browser
• -help-man — display full help (manpage format) and exit
• -help-notes — display help notes (description) and exit

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👑 SEE ALSO 👑

Online documentation: https://www.openfoam.com/documentation/

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💖 COPYRIGHT 💖

Copyright © 2018-2019 OpenCFD Ltd.

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okay so that's the whole page, and like — a lil sign-off for you: this one came from OpenFOAM over at www.openfoam.com, tagged OpenFOAM- with DECOMPOSEPAR(1) down at the bottom of the page 💌 that's the footer, babes, and now you know everything she knows. go decompose something iconic ✨🦋💅