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

Full SC21 List

The is the SC21 full IO500 list
# BoF Information IO500 Repro.
Institution System · FS Type Storage Vendor Client Nodes Total Client Proc. Score BW MD
(GiB/s) (kIOP/s)
101 ISC20 Officinalis CephFS Red Hat, Intel, QCT 8 256 53.44 28.10 101.63 -
102 SC19 Google Cloud EXA5-GCP-PD-STD Lustre Google Cloud 200 1,600 52.96 17.31 162.06 -
103 SC19 National Supercomputing Center in Changsha Tianhe-2E Lustre National University of Defense Technology 10 160 52.58 35.06 78.86 -
104 SC20 Raytheon WekaIO wekafs Penguin Computing 42 1,596 50.58 16.39 156.10 -
105 SC19 National Supercomputing Center in Changsha Tianhe-2E Lustre National University of Defense Technology 10 160 50.08 32.71 76.67 -
106 SC19 Janelia Research Campus, HHMI SharedScratch wekaio WekaIO 18 1,368 48.75 26.22 90.62 -
107 SC19 Oracle Cloud Infrastructure Oracle Cloud Infrastructure with Block Volume Service running Spectrum Scale Spectrum Scale Oracle Cloud Infrastructure Block Volumes Service 30 480 47.55 20.38 110.93 -
108 SC21 NLHPC Guacolda SpectrumScale IBM 10 360 45.26 17.91 114.36 -
109 SC19 National Supercomputing Centre, Singapore Aspire 1 IME DDN 10 160 43.04 101.75 18.21 -
110 SC19 Penguin Computing Benchmarking and Innovation Lab Penguin-ASG-NVBeeOne BeeGFS Penguin Computing/Excelero 10 320 39.65 17.71 88.76 -
111 SC19 CNES HAL Spectrum Scale DDN 96 96 37.16 9.71 142.20 -
112 SC19 Janelia Research Campus, HHMI SharedScratch Parallel Filesystem WekaIO 10 1,440 36.55 18.58 71.90 -
113 SC19 CNES HAL Spectrum Scale DDN 96 96 34.76 8.51 141.99 -
114 ISC20 Oracle Cloud Infrastructure BeeGFS on Oracle Cloud BeeGFS Oracle Cloud Infrastructure 10 160 32.79 14.02 76.67 -
115 SC20 Raytheon WekaIO wekafs Penguin Computing 10 440 32.20 14.83 69.88 -
116 ISC20 Janelia Research Campus, HHMI SharedScratch Parallel Filesystem WekaIO 10 600 31.39 12.34 79.83 -
117 ISC20 Janelia Research Campus, HHMI SharedScratch Parallel Filesystem WekaIO 10 600 30.83 13.35 71.22 -
118 SC20 Forschungszentrum Juelich (FZJ) JUWELS IME HPEDDN 10 400 29.81 178.11 4.99 -
119 ISC20 Oracle Cloud Infrastructure BeeGFS on Oracle Cloud BeeGFS Oracle Cloud Infrastructure 10 160 27.56 10.38 73.20 -
120 ISC20 Officinalis (1 Client) CephFS Red Hat, Intel, QCT 1 112 27.43 8.81 85.48 -
121 SC19 Janelia Research Campus, HHMI SharedScratch Parallel Filesystem WekaIO 10 400 24.70 16.32 37.37 -
122 ISC20 Janelia Research Campus, HHMI SharedScratch Parallel Filesystem WekaIO 10 600 24.19 11.85 49.39 -
123 SC21 HHMIJRC Janelia Compute Cluster Vast Vast Data 80 2,880 21.72 14.11 33.42 -
124 SC19 Clemson University Palmetto Burstbuffer BeeGFS AdvancedHPC 10 120 21.55 12.97 35.80 -
125 ISC20 Janelia Research Campus, HHMI SharedScratch Parallel Filesystem WekaIO 10 600 21.32 11.27 40.32 -
126 ISC20 Officinalis (1 Client) CephFS Red Hat, Intel, QCT 1 112 21.24 7.87 57.32 -
127 ISC20 Simon Fraser University Cedar Lustre Dell/Seagate 288 288 18.72 7.66 45.75 -
128 SC21 CMKL University Apex Lustre DDN 4 240 18.60 10.27 33.66 -
129 SC19 Stanford Sherlock/Fir Lustre Dell, QCT, HGST 10 240 18.25 5.23 63.74 -
130 SC20 The Science and Technology Facilities Council JASMIN 4 Quobyte Quobyte Inc. 48 336 17.55 19.76 15.60 -
131 ISC21 Georgia Institute of Technology PACE-Phoenix Lustre DDN 10 240 17.07 4.52 64.48 -
132 SC20 University of Tsukuba Cygnus Gfarm OSS 10 20 16.12 8.10 32.09 -
133 ISC20 SUSE HammerHead CephFS SUSE/Ampere/Arm 10 220 15.61 7.34 33.22 -
134 ISC21 Howard Hughes Medical Institute Janelia Research Campus nrsv Vast 10 300 15.50 7.54 31.84 -
135 SC19 University of Birmingham BEAR-AI Spectrum Scale DDN 10 80 15.39 2.74 86.48 -
136 ISC20 SUSE HammerHead CephFS SUSE/Ampere/Arm 10 220 15.38 7.04 33.57 -
137 ISC20 SUSE HammerHead CephFS SUSE/Ampere/Arm 10 200 15.07 7.05 32.21 -
138 SC19 SUSE TigerShark SUSE Enterprise Storage - CephFS SUSE, Intel, Lenovo 15 120 14.91 5.74 38.72 -
139 ISC20 SUSE HammerHead CephFS SUSE/Ampere/Arm 10 200 14.55 6.95 30.46 -
140 SC19 Nanyang Technological University Hadley GPFS DDN 10 640 12.89 7.47 22.24 -
141 SC21 GWDG SCC BeeGFS 10 80 12.55 2.63 59.85 -
142 SC19 Janelia Research Campus, HHMI Vast Scale-out NAS Vast Data 88 2,816 12.50 8.31 18.79 -
143 SC19 SUSE TigerShark SUSE Enterprise Storage - CephFS SUSE, Intel, Lenovo 10 80 12.43 4.64 33.34 -
144 ISC20 National Center for Supercomputing Applications NCSA Industry System Spectrum Scale DDN/Dell 8 96 12.37 3.03 50.54 -
145 SC21 ULHPC Aion SpectrumScale DDN 128 256 11.35 1.80 71.57 -
146 SC20 The Science and Technology Facilities Council JASMIN 4 Quobyte Quobyte Inc. 10 240 11.34 12.34 10.43 -
147 ISC20 National Center for Supercomputing Applications HAL Spectrum Scale DDN 10 100 11.31 3.62 35.37 -
148 ISC20 National Center for Supercomputing Applications NCSA Industry System Spectrum Scale DDN/Dell 8 96 11.28 3.04 41.78 -
149 ISC20 National Center for Supercomputing Applications HAL Spectrum Scale DDN 10 100 11.13 3.63 34.15 -
150 SC20 EPCC Archer 2 (test system) Lustre Cray 10 80 10.68 2.63 43.43 -
151 SC20 Janelia Research Campus, HHMI Vast Scale-out NAS Vast Data 10 260 10.64 7.44 15.22 -
152 ISC20 Janelia Research Campus, HHMI Vast Scale-out NAS Vast Data 10 620 9.87 6.36 15.32 -
153 SC19 Stanford Sherlock/Oak Lustre Dell, QCT, HGST 10 240 9.31 1.89 45.87 -
154 SC19 IST Austria IST Austria HPC BeeGFS Homemade@IST 4 80 8.41 1.77 39.98 -
155 SC19 Janelia Research Campus, HHMI Vast Scale-out NAS Vast Data 10 820 8.01 6.31 10.17 -
156 ISC20 German Climate Computing Center Mistral Lustre1 Cray 10 120 7.92 2.93 21.36 -
157 ISC20 Janelia Research Campus, HHMI Vast Scale-out NAS Vast Data 10 620 7.27 5.96 8.86 -
158 SC19 Stanford Sherlock/Regal Lustre Dell 10 160 7.05 1.64 30.28 -
159 ISC20 German Climate Computing Center Mistral Lustre1 Cray 10 120 6.92 2.89 16.57 -
160 SC19 IST Austria IST Austria HPC BeeGFS Homemade@IST 10 100 6.63 1.39 31.62 -
161 SC19 Janelia Research Campus, HHMI dm11 Scale-out NAS #N/A 10 760 6.42 2.61 15.82 -
162 SC20 University of Reading ThunderX2 Local file system 1 16 6.23 0.37 104.54 -
163 ISC20 Janelia Research Campus, HHMI VastTest Scale-out NAS Vast Data 10 620 6.20 3.51 10.95 -
164 ISC20 Janelia Research Campus, HHMI VastTest Scale-out NAS Vast Data 10 620 5.68 3.67 8.80 -
165 ISC21 DKRZ Mistral Lustre Seagate/Cray 10 80 5.22 1.16 23.50 -
166 ISC20 Janelia Research Campus, HHMI VastTest Scale-out NAS Vast Data 10 620 4.98 3.56 6.96 -
167 SC19 Janelia Research Campus, HHMI nrs Scale-out NAS Qumulo 10 760 4.19 2.88 6.11 -
168 SC19 Janelia Research Campus, HHMI nearline4 Scale-out NAS Qumulo 10 760 3.67 2.45 5.49 -
169 SC21 IBMDL Sandbox SpectrumScale IBM 10 0 3.17 0.61 16.57 -
170 ISC20 LNCC SDumont Lustre Cay/HPE 10 240 3.06 2.32 4.02 -

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% #101 — Officinalis () #102 — EXA5-GCP-PD-STD (Google Cloud) #103 — Tianhe-2E (National Supercomputing Center in Changsha) #104 — WekaIO (Raytheon) #105 — Tianhe-2E (National Supercomputing Center in Changsha) #106 — SharedScratch (Janelia Research Campus, HHMI) #107 — Oracle Cloud Infrastructure with Block Volume Service running Spectrum Scale (Oracle Cloud Infrastructure) #108 — Guacolda (NLHPC) #109 — Aspire 1 (National Supercomputing Centre, Singapore) #110 — Penguin-ASG-NVBeeOne (Penguin Computing Benchmarking and Innovation Lab)
  • #101 Officinalis
  • #102 EXA5-GCP-PD-STD Google Cloud
  • #103 Tianhe-2E National Supercomputing Center in Changsha
  • #104 WekaIO Raytheon
  • #105 Tianhe-2E National Supercomputing Center in Changsha
  • #106 SharedScratch Janelia Research Campus, HHMI
  • #107 Oracle Cloud Infrastructure with Block Volume Service running Spectrum Scale Oracle Cloud Infrastructure
  • #108 Guacolda NLHPC
  • #109 Aspire 1 National Supercomputing Centre, Singapore
  • #110 Penguin-ASG-NVBeeOne Penguin Computing Benchmarking and Innovation Lab