Submit your IO500 results for the upcoming SC'26 list, which will be presented at our BOF. See the Call for Submissions for details.

Historical ISC25 List

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Ranking of all submissions ever received
# BoF Information IO500 Repro.
Institution System · FS Type Storage Vendor Client Nodes Total Client Proc. Score BW MD
(GiB/s) (kIOP/s)
301 SC20 University of Tsukuba Cygnus Gfarm OSS 10 20 16.12 8.10 32.09 -
302 ISC20 SUSE HammerHead CephFS SUSE/Ampere/Arm 10 220 15.61 7.34 33.22 -
303 ISC25 UCloud UCloud Compute cluster UPFS UCloud 10 320 15.57 12.33 19.65
304 ISC21 Howard Hughes Medical Institute Janelia Research Campus nrsv Vast 10 300 15.50 7.54 31.84 -
305 ISC18 DKRZ Mistral Lustre1 Seagate 100 1,200 15.47 12.68 18.88 -
306 SC19 University of Birmingham BEAR-AI Spectrum Scale DDN 10 80 15.39 2.74 86.48 -
307 ISC20 SUSE HammerHead CephFS SUSE/Ampere/Arm 10 220 15.38 7.04 33.57 -
308 ISC20 SUSE HammerHead CephFS SUSE/Ampere/Arm 10 200 15.07 7.05 32.21 -
309 SC19 SUSE TigerShark SUSE Enterprise Storage - CephFS SUSE, Intel, Lenovo 15 120 14.91 5.74 38.72 -
310 ISC19 Inspur TStor3000 BeeGFS Inspur 10 400 14.67 4.48 48.06 -
311 ISC25 UCloud UCloud Compute cluster UPFS UCloud 10 320 14.57 10.58 20.07
312 ISC20 SUSE HammerHead CephFS SUSE/Ampere/Arm 10 200 14.55 6.95 30.46 -
313 SC18 KAUST Shaheen II DataWarp Cray 10 80 13.99 14.45 13.53 -
314 SC18 Clemson University ofsdev BeeGFS Dell 16 32 13.12 3.17 54.21 -
315 SC19 Nanyang Technological University Hadley GPFS DDN 10 640 12.89 7.47 22.24 -
316 SC18 Google and DDN Lustre on GCP Lustre Google 10 80 12.82 4.30 38.23 -
317 SC21 GWDG SCC BeeGFS 10 80 12.55 2.63 59.85 -
318 ISC19 University of Birmingham BEAR-AI Spectrum Scale DDN 10 20 12.54 2.97 52.85 -
319 SC18 Clemson University ofsdev BeeGFS Dell 16 64 12.51 2.10 74.72 -
320 SC19 Janelia Research Campus, HHMI Vast Scale-out NAS Vast Data 88 2,816 12.50 8.31 18.79 -
321 ISC19 Janelia Research Campus, HHMI dm11 Scale-out NAS 96 960 12.45 3.22 48.16 -
322 SC24 Gesellschaft fur wissenschaftliche Datenverarbeitung Emmy Garden Linux, Ceph Clyso 8 256 12.44 1.70 91.21
323 SC19 SUSE TigerShark SUSE Enterprise Storage - CephFS SUSE, Intel, Lenovo 10 80 12.43 4.64 33.34 -
324 ISC20 National Center for Supercomputing Applications NCSA Industry System Spectrum Scale DDN/Dell 8 96 12.37 3.03 50.54 -
325 ISC18 Joint Institute for Nuclear Research Govorun Lustre RSC 24 192 12.08 3.34 43.65 -
326 ISC19 Janelia Research Campus, HHMI Vast Scale-out NAS Vast Data 10 480 11.96 5.64 25.37 -
327 ISC19 Queen Mary University Of London Apocrita Spectrum Scale E8 10 240 11.73 4.73 29.11 -
328 SC21 ULHPC Aion SpectrumScale DDN 128 256 11.35 1.80 71.57 -
329 SC20 The Science and Technology Facilities Council JASMIN 4 Quobyte Quobyte Inc. 10 240 11.34 12.34 10.43 -
330 ISC20 National Center for Supercomputing Applications HAL Spectrum Scale DDN 10 100 11.31 3.62 35.37 -
331 ISC20 National Center for Supercomputing Applications NCSA Industry System Spectrum Scale DDN/Dell 8 96 11.28 3.04 41.78 -
332 ISC20 National Center for Supercomputing Applications HAL Spectrum Scale DDN 10 100 11.13 3.63 34.15 -
333 ISC18 PNNL EMSL Cascade Lustre 126 252 11.12 4.88 25.33 -
334 SC18 Clemson University ofsdev BeeGFS Dell 16 128 11.01 1.90 63.81 -
335 SC20 EPCC Archer 2 (test system) Lustre Cray 10 80 10.68 2.63 43.43 -
336 SC20 Janelia Research Campus, HHMI Vast Scale-out NAS Vast Data 10 260 10.64 7.44 15.22 -
337 ISC23 Panasas PanEast ActiveStor Flash Panfs Panasas 10 80 10.57 4.49 24.90
338 SC18 Clemson University ofsdev BeeGFS Dell 10 80 10.17 2.32 44.67 -
339 SC22 Omnibond OrangeFS-Google OrangeFS Omnibond-Google 10 150 9.92 4.27 23.08 -
340 ISC20 Janelia Research Campus, HHMI Vast Scale-out NAS Vast Data 10 620 9.87 6.36 15.32 -
341 ISC22 Omnibond OrangeFS-Google OrangeFS Omnibond-Google 10 150 9.82 4.40 21.92 -
342 SC18 Queen Mary; University Of London Apocrita GPFS E8 10 240 9.65 4.32 21.55 -
343 SC18 Clemson University Palmetto BeeGFS Dell 32 32 9.42 2.94 30.19 -
344 SC19 Stanford Sherlock/Oak Lustre Dell, QCT, HGST 10 240 9.31 1.89 45.87 -
345 ISC19 Janelia Research Campus, HHMI dm11 Scale-out NAS 10 320 9.22 2.38 35.64 -
346 SC18 Clemson University Palmetto BeeGFS Dell 16 16 9.07 2.84 28.95 -
347 SC18 Clemson University ofsdev Lustre Dell 16 64 8.63 2.10 35.37 -
348 SC18 Clemson University ofsdev Lustre Dell 16 128 8.58 2.05 35.83 -
349 SC19 Janelia Research Campus, HHMI Vast Scale-out NAS Vast Data 10 480 8.45 6.16 11.60 -
350 SC19 IST Austria IST Austria HPC BeeGFS Homemade@IST 4 80 8.41 1.77 39.98 -
351 ISC19 SUSE TigerShark CephFS SUSE, Intel, Lenovo 14 98 8.38 3.58 19.60 -
352 ISC25 Istituto Nazionale di Fisica Nucleare Tier1-CNAF CephFS DELL 10 160 8.13 8.28 7.98
353 SC19 Janelia Research Campus, HHMI Vast Scale-out NAS Vast Data 10 820 8.01 6.31 10.17 -
354 ISC20 German Climate Computing Center Mistral Lustre1 Cray 10 120 7.92 2.93 21.36 -
355 SC19 Janelia Research Campus, HHMI Vast Scale-out NAS Vast Data 10 480 7.77 5.39 11.18 -
356 SC18 Clemson University Palmetto BeeGFS Dell 48 48 7.64 2.93 19.88 -
357 SC23 Eikon Therapeutics spt-compute1 Qumulo Core Qumulo 20 40 7.58 2.82 20.38 -
358 SC18 CERN Bytecollider CephFS 64 64 7.56 2.83 20.16 -
359 SC18 Clemson University ofsdev Lustre Dell 10 40 7.36 1.90 28.59 -
360 ISC19 SUSE TigerShark SUSE Enterprise Storage SUSE, Intel, Lenovo 10 70 7.32 2.48 21.60 -
361 ISC20 Janelia Research Campus, HHMI Vast Scale-out NAS Vast Data 10 620 7.27 5.96 8.86 -
362 SC18 Clemson University Palmetto BeeGFS Dell 10 10 7.14 2.32 22.05 -
363 SC19 Stanford Sherlock/Regal Lustre Dell 10 160 7.05 1.64 30.28 -
364 ISC20 German Climate Computing Center Mistral Lustre1 Cray 10 120 6.92 2.89 16.57 -
365 SC24 RTX Pratt Whitney Wilson PanFS VDURA 10 160 6.70 2.17 20.70
366 SC18 Clemson University Palmetto BeeGFS Dell 32 32 6.67 2.95 15.10 -
367 SC23 LCPQ Ampere BeeGFS Home made 10 30 6.65 1.22 36.16
368 SC19 IST Austria IST Austria HPC BeeGFS Homemade@IST 10 100 6.63 1.39 31.62 -
369 SC19 Janelia Research Campus, HHMI dm11 Scale-out NAS #N/A 10 760 6.42 2.61 15.82 -
370 SC18 Clemson University Palmetto BeeGFS Dell 32 128 6.26 1.25 31.42 -
371 ISC23 Panasas PanEast ActiveStor UltraXL Panfs Panasas 10 80 6.25 1.86 21.01
372 SC20 University of Reading ThunderX2 Local file system 1 16 6.23 0.37 104.54 -

Top 10 systems compared

Each axis is scaled to the highest value among these systems — 100% marks the leader on that dimension. Click a system below to toggle it.

Score 100% Bandwidth 100% Metadata 100% Clients 100% Processes 100% #301 — Cygnus (University of Tsukuba) #302 — HammerHead (SUSE) #303 — UCloud Compute cluster (UCloud) #304 — (Howard Hughes Medical Institute Janelia Research Campus) #305 — Mistral (DKRZ) #306 — BEAR-AI (University of Birmingham) #307 — HammerHead (SUSE) #308 — HammerHead (SUSE) #309 — TigerShark (SUSE) #310 — TStor3000 (Inspur)
  • #301 Cygnus University of Tsukuba
  • #302 HammerHead SUSE
  • #303 UCloud Compute cluster UCloud
  • #304 Howard Hughes Medical Institute Janelia Research Campus
  • #305 Mistral DKRZ
  • #306 BEAR-AI University of Birmingham
  • #307 HammerHead SUSE
  • #308 HammerHead SUSE
  • #309 TigerShark SUSE
  • #310 TStor3000 Inspur