News
Announcements, list releases, and press coverage from the IO500 community.
2026
The ISC26 lists are published · 321 submissions on the Full list
| List | #1 | Score |
|---|---|---|
| Production | Aurora · Argonne National Laboratory | 32,165.90 |
| 10 Node Production | Aurora · Argonne National Laboratory | 2,885.57 |
| Research | Pengcheng CloudBrain with OceanStor A800 new · Pengcheng Laboratory | 603,334.56 |
| 10 Node Research | Cheeloo-1 with OceanStor Pacific · JNIST and HUST PDSL | 137,100.00 |
2025
The SC25 lists are published · 306 submissions on the Full list
| List | #1 | Score |
|---|---|---|
| Production | Aurora · Argonne National Laboratory | 32,165.90 |
| 10 Node Production | Aurora · Argonne National Laboratory | 2,885.57 |
| Research | Pengcheng Cloudbrain-II on Atlas 900 · Pengcheng Laboratory | 210,255.00 |
| 10 Node Research | Cheeloo-1 with OceanStor Pacific · JNIST and HUST PDSL | 137,100.00 |
The ISC25 lists are published · 284 submissions on the Full list
| List | #1 | Score |
|---|---|---|
| Production | Aurora · Argonne National Laboratory | 32,165.90 |
| 10 Node Production | Aurora · Argonne National Laboratory | 2,885.57 |
| Research | Pengcheng Cloudbrain-II on Atlas 900 · Pengcheng Laboratory | 210,255.00 |
| 10 Node Research | Cheeloo-1 with OceanStor Pacific · JNIST and HUST PDSL | 137,100.00 |
2024
The SC24 lists are published · 268 submissions on the Full list
| List | #1 | Score |
|---|---|---|
| Production | Aurora · Argonne National Laboratory | 32,165.90 |
| 10 Node Production | Aurora · Argonne National Laboratory | 2,885.57 |
| Research | Pengcheng Cloudbrain-II on Atlas 900 · Pengcheng Laboratory | 210,255.00 |
| 10 Node Research | Cheeloo-1 with OceanStor Pacific · JNIST and HUST PDSL | 137,100.00 |
The ISC24 lists are published · 247 submissions on the Full list
| List | #1 | Score |
|---|---|---|
| Production | Aurora · Argonne National Laboratory | 32,165.90 |
| 10 Node Production | Aurora · Argonne National Laboratory | 2,885.57 |
| Research | Pengcheng Cloudbrain-II on Atlas 900 · Pengcheng Laboratory | 210,255.00 |
| 10 Node Research | Cheeloo-1 with OceanStor Pacific · JNIST and HUST PDSL | 137,100.00 |
2023
- Congratulations to Argonne National Laboratory for their Aurora DAOS submission that took over the #1 spot on the Production list, and also the "10 Node Challenge Production" list. Pengcheng Laboratory and their Cloudbrain-II system using MadFS maintained the #1 Research spot, while JNIST and HUST PDSL maintained the #1 spot on the "10 Node Challenge Research" list with OceanFS2.
- Congratulations to LRZ for their SuperMUC-NG DAOS submission that had #1 spot on the innaugural Production list, and also the "10 Node Challenge Production" list. Pengcheng Laboratory and their Cloudbrain-II system using MadFS maintained the #1 Research spot, while JNIST and HUST PDSL took over the #1 spot on the "10 Node Challenge Research" list with OceanFS2.
2022
- Congratulations again to Pengcheng Laboratory for their Cloudbrain-II system using MadFS, which maintained the #1 overall spot, while Argonne National Laboratory debut a new DAOS system for their Aurora cluster in the #2 spot. Sugon Cloud Storage Laboratory maintained the #1 spot on the "10 Node Challenge" list.
- Congratulations again to Pengcheng Laboratory for their Cloudbrain-II system using MadFS, which maintained the #1 overall spot. The Sugon Cloud Storage Laboratory won the "10 Node Challenge".
2021
- Congratulations again to Pengcheng Laboratory for their Cloudbrain-II system using MadFS, which maintained the #1 overall spot and also won the "10 Node Challenge", and to Huawei with new systems in second and third place.
- Congratulations to Pengcheng Laboratory for their Cloudbrain-II system using MadFS, which maintained the #1 overall spot and also won the "10 Node Challenge".
2020
2019
2018
- Congrats to ORNL for their Summit machine which took over the #1 overall spot and also won the "10 Node Challenge".
- A total of 54 new submissions from 19 different institutions!
2017
| Sep 2019 | Matt Rásó-Barnett talk at LAD'19 | eofs.eu |
| May 2019 | Andreas Dilger talk at LUG'19 | wiki.lustre.org |
| Mar 2019 | John Bent and Steve Crusan talk at Rice O&G | 2019riceoilgasconference.sched.com |
| Nov 2018 | Talks available from our SC18 BOF | vi4io.org |
| Jul 2018 | John Bent's keynote at the ORNL Data over Distance Symposium | vi4io.org |
| Jun 2018 | Talks available from our ISC18 BOF | vi4io.org |
| Nov 2017 | Talks available from our SC17 BOF | vi4io.org |
| Jun 2017 | The status of the IO500: Julian Kunkel's talk at LBNL | hps.vi4io.org |
| May 2017 | Discussion of IO500 at Daghstuhl seminar documented in Section 8.2 | drops.dagstuhl.de |
| Nov 2016 | Talks available from our SC16 BOF | vi4io.org |
Other public discussion
| Apr 2020 | IO500 Influenced Ceph patch for mdtest stat | github.com |
| Feb 2020 | IO500 Influenced Lustre patch for IOR hard write | review.whamcloud.com |
| Sep 2019 | IO500 Influenced Lustre patch for mdtest easy delete | review.whamcloud.com |
| Aug 2019 | IO500 Influenced Lustre patch for IOR hard read | review.whamcloud.com |
| Apr 2018 | IO500 Influenced Lustre patch for mdtest stat | review.whamcloud.com |
Papers
User-Centric System Fault Identification Using IO500 Benchmark
2021 IEEE/ACM Sixth International Parallel Data Systems Workshop (PDSW), 2021 · DOI 10.1109/PDSW54622.2021.00011
Cite (BibTeX)
@inproceedings{liem:2021:user,
title = {User-Centric System Fault Identification Using IO500 Benchmark},
author = {Liem, Radita and Povaliaiev, Dmytro and Lofstead, Jay and Kunkel, Julian and Terboven, Christian},
booktitle = {2021 IEEE/ACM Sixth International Parallel Data Systems Workshop (PDSW)},
pages = {35--40},
year = {2021},
organization = {IEEE},
doi = {10.1109/PDSW54622.2021.00011}
}
Benchmarking Parallel File System Sensitiveness to I/O Patterns
2019 IEEE 27th International Symposium on Modeling, Analysis, and Simulation of Computer and Telecommunication Systems (MASCOTS), 2019 · DOI 10.1109/MASCOTS.2019.00054
Cite (BibTeX)
@inproceedings{chasapis:2019:benchmarking,
title = {Benchmarking Parallel File System Sensitiveness to I/O Patterns},
author = {Chasapis, Konstantinos and Vet, Jean-Yves and Acquaviva, Jean-Thomas},
booktitle = {2019 IEEE 27th International Symposium on Modeling, Analysis, and Simulation of Computer and Telecommunication Systems (MASCOTS)},
pages = {427--428},
year = {2019},
organization = {IEEE},
doi = {10.1109/MASCOTS.2019.00054}
}
Profiling Platform Storage using IO500 and Mistral
2019 IEEE/ACM Fourth International Parallel Data Systems Workshop (PDSW), 2019 · DOI 10.1109/PDSW49588.2019.00011
Cite (BibTeX)
@inproceedings{monnier:2019:profiling,
title = {Profiling Platform Storage using IO500 and Mistral},
author = {Monnier, Nolan and Lofstead, Jay and Lawson, Margaret and Curry, Matthew},
booktitle = {2019 IEEE/ACM Fourth International Parallel Data Systems Workshop (PDSW)},
pages = {60--73},
year = {2019},
organization = {IEEE},
doi = {10.1109/PDSW49588.2019.00011}
}
Scaling High-Performance Parallel File Systems in the Cloud
2018 IEEE/ACM International Parallel Data Systems Workshop (PDSW), 2018
Cite (BibTeX)
@inproceedings{beckett:2018:scaling,
title = {Scaling High-Performance Parallel File Systems in the Cloud},
author = {Beckett, James and Kim, Eric and Stanton, Evan and Liu, David and Rughwani, Vishank and Hwang, Seungmin and Chung, Joaquin and Fatland, Rob and Pho, Nam},
booktitle = {2018 IEEE/ACM International Parallel Data Systems Workshop (PDSW)},
year = {2018},
organization = {IEEE}
}
Establishing the IO-500 Benchmark
White Paper, 2016
Cite (BibTeX)
@article{kunkel:2016:establishing,
title = {Establishing the IO-500 Benchmark},
author = {Kunkel, J and Bent, John and Lofstead, Jay and Markomanolis, George S},
journal = {White Paper},
year = {2016}
}
Datasets
Zenodo, 2022 · DOI 10.5281/zenodo.6772541
Cite (BibTeX)
@dataset{io500:2022:05,
author = {Lofstead, Jay and Markomanolis, Georgio and Kunkel, Julian and Dilger, Andreas and Hildebrand, Dean},
title = {IO500 ISC22 Lists},
month = {May},
year = {2022},
publisher = {Zenodo},
version = {1.0},
doi = {10.5281/zenodo.6772541},
url = {https://doi.org/10.5281/zenodo.6772541}
}
Zenodo, 2021 · DOI 10.5281/zenodo.6462508
Cite (BibTeX)
@dataset{io500:2021:11,
author = {Lofstead, Jay and Markomanolis, Georgio and Kunkel, Julian and Dilger, Andreas and Hildebrand, Dean},
title = {IO500 SC21 Lists},
month = {Nov},
year = {2021},
publisher = {Zenodo},
version = {1.0},
doi = {10.5281/zenodo.6462508},
url = {https://doi.org/10.5281/zenodo.6462508}
}
Zenodo, 2021 · DOI 10.5281/zenodo.6462505
Cite (BibTeX)
@dataset{io500:2021:07,
author = {Lofstead, Jay and Markomanolis, Georgio and Kunkel, Julian and Dilger, Andreas and Hildebrand, Dean},
title = {IO500 ISC21 Lists},
month = {Jul},
year = {2021},
publisher = {Zenodo},
version = {1.0},
doi = {10.5281/zenodo.6462505},
url = {https://doi.org/10.5281/zenodo.6462505}
}
Zenodo, 2020 · DOI 10.5281/zenodo.6462501
Cite (BibTeX)
@dataset{io500:2020:11,
author = {Lofstead, Jay and Markomanolis, Georgio and Kunkel, Julian and Dilger, Andreas},
title = {IO500 SC20 Lists},
month = {Nov},
year = {2020},
publisher = {Zenodo},
version = {1.0},
doi = {10.5281/zenodo.6462501},
url = {https://doi.org/10.5281/zenodo.6462501}
}
Zenodo, 2020 · DOI 10.5281/zenodo.6462499
Cite (BibTeX)
@dataset{io500:2020:07,
author = {Lofstead, Jay and Markomanolis, Georgio and Kunkel, Julian and Dilger, Andreas and Hildebrand, Dean},
title = {IO500 ISC20 Lists},
month = {Jul},
year = {2020},
publisher = {Zenodo},
version = {1.0},
doi = {10.5281/zenodo.6462499},
url = {https://doi.org/10.5281/zenodo.6462499}
}
Zenodo, 2019 · DOI 10.5281/zenodo.6462493
Cite (BibTeX)
@dataset{io500:2019:11,
author = {Lofstead, Jay and Markomanolis, Georgio and Kunkel, Julian and Bent, John},
title = {IO500 SC19 Lists},
month = {Nov},
year = {2019},
publisher = {Zenodo},
version = {1.0},
doi = {10.5281/zenodo.6462493},
url = {https://doi.org/10.5281/zenodo.6462493}
}
Zenodo, 2019 · DOI 10.5281/zenodo.6462490
Cite (BibTeX)
@dataset{io500:2019:06,
author = {Lofstead, Jay and Markomanolis, Georgio and Kunkel, Julian and Bent, John},
title = {ISC19 IO500 Data Sets},
month = {Jun},
year = {2019},
publisher = {Zenodo},
version = {1.0},
doi = {10.5281/zenodo.6462490},
url = {https://doi.org/10.5281/zenodo.6462490}
}
IO500 10 node challenge (2018)
Zenodo, 2018 · DOI 10.5281/zenodo.6462483
Cite (BibTeX)
@dataset{io500:2018:11,
author = {Lofstead, Jay and Markomanolis, Georgio and Kunkel, Julian and Bent, John},
title = {IO500 10 Node Challenge},
month = {Nov},
year = {2018},
publisher = {Zenodo},
version = {1.0},
doi = {10.5281/zenodo.6462483},
url = {https://doi.org/10.5281/zenodo.6462483}
}
Software
VI4IO/io-500-dev: Zenodo Citation Release
Zenodo, 2018 · DOI 10.5281/zenodo.1422814
Cite (BibTeX)
@software{kunkel:2018:io500,
author = {Julian Kunkel and George Markomanolis and John Bent and Jay Lofstead},
title = {VI4IO/io-500-dev: Zenodo Citation Release},
month = {Sep},
year = {2018},
publisher = {Zenodo},
version = {v1.1},
doi = {10.5281/zenodo.1422814},
url = {https://doi.org/10.5281/zenodo.1422814}
}