ADIOS2_REORGANIZE.MPI(1)

🦋 ADIOS2_REORGANIZE.MPI(1) 🦋

okay so this is the User Commands page for adios2_reorganize.mpi, bestie 💖 let's get into it

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✨ NAME ✨

adios2_reorganize.mpi is an ADIOS2 utility 🌸 that's literally it, that's the whole name

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🎀 SYNOPSIS 🎀

adios_reorganize input output rmethod "params" wmethod "params"
<decomposition>

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💅 DESCRIPTION 💅

okay the vibe here is that you pass it a bunch of args and it reshuffles your stream into a new file 🧚 here's what each one does:

• input — the input stream path, so where your data is coming from 👀
• output — the output file path, where it's all going to land 🦋
• rmethod — the ADIOS method you read with 📖 supported read methods are BPFile, HDF5, SST, SSC, and DataMan 💜
• params — read method parameters, which go in quotes as a comma-separated list 🍓
• wmethod — the ADIOS method you write with ✍️
• params — write method parameters, also in quotes and comma-separated 🌈
• <decomposition> — a list of numbers, like 32 8 4 ⭐ this one is lowkey the main character:
  • these values are the decomposition across each dimension of an array 🔥
  • the product of these numbers has to be less than the number of processes 💀 that's the rule, no exceptions
  • any process whose rank is higher than that product just won't write anything 🙈
  • arrays with fewer dimensions than the number of values still get decomposed, using the appropriate number of values from your list 🫶

if you forget an argument, the tool throws a very dramatic error at you 😭 it's giving:

[Sat Sep 07 17:06:14 2024] [ADIOS2 EXCEPTION] <Utils>
<AdiosReorganize> <Reorganize> : Not enough arguments. At least 6 are
required

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ADIOS · September 2024 · ADIOS2_REORGANIZE.MPI(1) 🧚💜 stay reorganized bestie, love you ✨