A summary (or system list) of LC computing platforms is provided in the sortable table below.

NOTE Click column heading to sort. Click platform name for detailed information. Scroll at bottom of table to see more columns.

Title Zone Nodes* Cores per Node Memory per Node (GB) Clock Speed (GHz) Peak PFLOPS (CPUs) Peak PFLOPs (GPUs) Peak PFLOPS (CPUs+GPUs) CPU Architecture GPU Architecture [APU if applicable] Switch Vendor Program(s) Class Year Sited OS Access‡ Title
Borax CZ 48 36 128 2.1 0.058 0.058 Intel Xeon E5-2695 v4 N/A Penguin ASC CTS-1 2016 TOSS 4 Borax
Lassen CZ 795 44 256 3.5 0.855 22.2 23.0 IBM Power9 NVIDIA V100 (Volta) IB EDR IBM ASC+M&IC ATS-2, CORAL-1 2018 RHEL Lassen
Corona CZ 121 48 256 121 nodes AMD Rome 121 nodes AMD 8xMI50 IB HDR Penguin ASC, M&IC, CARES Other 2019 TOSS 4 Limited Corona
Boraxo CZ 59 36 192 2.3 0.078 0.078 Intel Xeon Gold 6140 N/A Penguin ASC CTS-1 2020 TOSS 4 Boraxo
Ruby CZ 1,512 56 192 6.0 6.0 Intel Xeon CLX-8276L Cornelis Networks Omni-Path Supermicro ASC, M&IC CTS-1 2020 TOSS 4 Ruby
Mammoth CZ 69 128 2,048 2.3 0.294 0.294 AMD Rome Cornelis Networks Omni-Path SuperMicro ASC, M&IC CTS-1 2020 TOSS 4 Limited Mammoth
Tioga CZ 32 64 512 2.0 0.064 5.8 5.8 AMD Trento AMD MI-250X HPE Slingshot 11 HPE Cray ASC, M&IC ATS-4/EA, CORAL-2 2022 TOSS 4 Tioga
Poodle CZ 41 112 256 0.293 0.293 Intel(R) Xeon(R) Platinum 8479, Intel(R) Xeon(R) CPU Max 9480 Cornelis Dell ASC + M&IC (poss) CTS-2 2022 TOSS 4 Poodle
Dane CZ 1,544 112 256 2.0 10.7 10.7 Intel Sapphire Rapids Cornelis Networks CZ ASC, M&IC CTS-2 2023 TOSS4 Dane
Tuolumne CZ 1,152 96 2.0 5.3 288.9 294.2 4th Generation AMD EPYC CDNA 3 [APU: AMD MI300A] HPE Slingshot 11 HPE Cray ASC, M&IC, Bio ATS-4, CORAL-2 2024 TOSS 4 Very Limited Tuolumne
Matrix CZ 28 112 504 3.7 0.198 3.8 4.0 Intel(R) Xeon(R) Platinum 8480+ NVIDIA H100 IB Dell CTS-2 2025 TOSS 4 Matrix
RZGenie RZ 48 36 128 2.1 0.058 0.058 Intel Xeon E5-2695 v4 Cornelis Networks Omni-Path Penguin ASC CTS-1 2019 TOSS 4 Limited RZGenie
RZTrona RZ 20 36 128 2.1 0.024 0.024 Intel Xeon E5-2695 v4 N/A Penguin ASC CTS-1 2017 TOSS 4 RZTrona
RZAnsel RZ 62 44 256 3.4 0.058 1.5 1.6 IBM Power9 NVIDIA V100 (Volta) IB EDR IBM ASC ATS-2, CORAL-1 2018 RHEL Limited RZAnsel
RZVernal RZ 38 64 1.9 0.512 6.8 6.9 AMD Trento AMD MI-250X HPE Slingshot 11 HPE Cray ASC ATS-4/EA, CORAL-2 2022 TOSS 4 Limited RZVernal
RZWhippet RZ 36 112 256 2.0 0.293 0.293 Intel(R) Xeon(R) Platinum 8479, Intel(R) Xeon(R) CPU Max 9480 Cornelis Dell ASC CTS-2 2022 TOSS 4 Limited RZWhippet
RZHound RZ 386 112 256 2.0 2.7 2.7 Intel Sapphire Rapids Cornelis Networks Dell ASC, M&IC CTS-2 2023 TOSS 4 RZHound
RZAdams RZ 128 96 512 3.7 0.358 31.7 32.1 4th Generation AMD EPYC CDNA 3 [APU: AMD MI300A] HPE Slingshot 11 HPE Cray ASC ATS-4 2024 TOSS 4 RZAdams
Sierra SCF 4,474 44 256 3.4 4.7 121.0 125.6 IBM Power9 NVIDIA V100 (Volta) IB EDR IBM ASC ATS-2, CORAL-1 2018 RHEL Limited Sierra
Jade SCF 1,302 36 128 2.1 1.6 1.6 Intel Xeon E5-2695 v4 Cornelis Networks Omni-Path Penguin ASC CTS-1 2016 TOSS 4 Jade
Mica SCF 384 36 128 2.1 0.464 0.464 Intel Xeon E5-2695 v4 Cornelis Networks Omni-Path Penguin ASC CTS-1 2017 TOSS 4 Mica
Agate SCF 48 36 128 2.1 0.058 0.058 Intel Xeon E5-2695 v4 N/A Penguin ASC CTS-1 2016 TOSS 4 Agate
Jadeita SCF 1,270 36 128 2.1 1.5 1.5 Intel Xeon E5-2695 v4 Cornelis Networks Omni-Path Penguin ASC CTS-1 2016 TOSS 4 Jadeita
Magma SCF 772 96 384 2.3 5.3 5.3 Intel Cascade Lake AP Cornelis Networks Omni-Path Penguin ASC CTS-1 2020 TOSS 4 Magma
Tron SCF 146 32 384 2.9 0.433 0.433 Intel Cascade Lake Mellanox EDR Super Micro ASC, M&IC CTS, VIS 2020 TOSS 4 Tron
Vertex SCF 40 16 383 2.5 0.028 1.0 1.0 Intel Xeon Silver 4215 NVIDIA Tesla Supermicro 2022 TOSS 4 Vertex
Tenaya SCF 24 64 512 2.0 0.048 4.3 4.4 AMD Trento AMD MI-250X HPE Slingshot 11 HPE Cray ASC ATS-4/EA, CORAL-2 2022 TOSS 4 Limited Tenaya
Bengal SCF 1,158 112 256 2.0 8.0 8.0 Intel Sapphire Rapids Cornelis Networks Dell ASC, M&IC CTS-2 2023 TOSS4 Bengal
El Capitan SCF 11,136 96 2.0 2,792.9 4th Generation AMD EPYC CDNA 3 [APU: AMD MI300A] HPE Slingshot 11 HPE Cray ASC ATS-4, CORAL-2 2024 TOSS 4 Very Limited El Capitan
Pinot SNSI 187 36 128 2.1 0.232 0.232 Intel Xeon E5-2695 v4 Cornelis Networks Omni-Path Penguin M&IC CTS-1 2018 TOSS 4 Pinot

NOTE To remove clutter, systems with peak PFLOPS>1 only show one decimal place, whereas those with PFLOPS<1 show 3 decimal places. However, clicking on the system name will bring you to a page where you can see 3 decimal places for all machines.

*Nodes = User-available nodes. For total nodes, see our higher-level overview "Livermore Computing Systems Summary."

**Total memory = for most systems, this number is the total CPU node-only memory; for Sierra, Lassen (coming soon) , and RZAnsel, this is CPU+GPU.

‡Access: Platforms are General Availability unless "access" is marked as "Limited."

Machine Messages of the Day (MOTDs)

System Status

Operating Systems

OS (operating system) types are TOSS 3/TOSS (Tri-Lab Operating System Stack—formerly CHAOS, Clustered High Availability Operating System—derived from Red Hat Linux); SLES/CNK (SuSE Linux Enterprise Server/Compute Node Kernel); and RHEL (Red Hat Enterprise Linux). Click on platform name to see OS information for each platform.

Additional Information

Other useful (and more detailed) information may be found by following these links: