[yt-users] Estimation of memory

[Pengfei Chen]

Hi all,

I'm trying to do MergerTree for 10 snapshots on Nautilus. Each of the
snapshots has around 500,000,000 particles. I tried

#PBS -l ncpus=256
#PBS -l mem=1024GB
#PBS -l walltime=12:00:00

but it ended 11 minutes later with the error:

MPI WARNING: Could not allocate an internal buffer in the last 30 seconds
on rank 184.  Try increasing MPI_BUFS_PER_PROC and/or MPI_BUFS_PER_HOST.

Could someone please give me an estimation about how much memory I need to
use?

Thanks!

Pengfei
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