Performance benchmarks

Datasets and commands

Datasets

Dataset	Description
A	6 T1w, 3 T2w, 2 PhaseDiff, 4 SE-BOLD (195 volumes / series; total 784), 4 sbref
B	2 T1w, 6 PEPolar fieldmaps, 8 SE-BOLD (4274 volumes total)

fMRIPrep versions and modes

All commands took the form fmriprep sourcedata/raw . participant $OPTIONS. The specific options for each version or mode are presented in the following table.

Version / Mode	Options
23.1.4	--cifti-output --output-spaces MNI152NLin2009cAsym
23.2.0a2 / fit	--level minimal --cifti-output --output-spaces MNI152NLin2009cAsym
23.2.0a2 / fit + transform	--level full --cifti-output --output-spaces MNI152NLin2009cAsym

Machine details

Tests were run on a desktop machine running no other significant tests.

• Processor: Intel i9-10900 CPU @ 2.80GHz, 20-core

• Memory: 64GiB

• Storage: PC801 NVMe SK hynix 2TB

• OS: Ubuntu 22.04

• Environment: Docker images published to https://hub.docker.com/r/nipreps/fmriprep/

Benchmarks

Dataset A

Version / Mode	Runtime	Scratch Size	Scratch Files	Output Size	Output files
23.1.4	2h24m	54.8GB	36.8K	2.30GB	176
23.2.0a2 / fit	1h35m	2.91GB	5.89K	602MB	128
23.2.0a2 / fit + transform	1h47m	19.8GB	10.0K	6.37GB	206

Dataset B

Version / Mode	Runtime	Scratch Size	Scratch Files	Output Size	Output files
23.1.4	4h25m	121GB	157K	5.10GB	286
23.2.0a2 / fit	1h29m	1.88GB	12.0K	543MB	206
23.2.0a2 / fit + transform	2h7m	56.5GB	19.8K	14.7GB	348