SPEC CPU®2026 Floating Point Rate Result

Copyright 2026 Standard Performance Evaluation Corporation

Lenovo Global Technology

ThinkSystem SR665 V3
(2.60 GHz, AMD EPYC 9655)

SPECrate®2026_fp_base = 64600

SPECrate®2026_fp_energy_base = 80.30

SPECrate®2026_fp_peak = 64600

SPECrate®2026_fp_energy_peak = 80.30
CPU2026 License: 9017 Test Date: Feb-2026
Test Sponsor: Lenovo Global Technology Hardware Availability: Jul-2025
Tested by: Lenovo Global Technology Software Availability: Jan-2026
Benchmark results graph
Hardware
CPU Name: AMD EPYC 9655
  Max MHz: 4500
  Nominal: 2600
Enabled: 192 cores, 2 chips, 2 threads/core
Orderable: 1,2 chips
Cache L1: 32 KB I + 48 KB D on chip per core
  L2: 1 MB I+D on chip per core
  L3: 384 MB I+D on chip per chip,
32 MB shared / 8 cores
  Other: None
Memory: 768 GB (24 x 32 GB 2Rx8 PC5-6400B-R, running at
5200)
Storage: 1 x 480 GB SATA SSD
Cooling: Air
Other: None
Software
OS: SUSE Linux Enterprise Server 15 SP7
Kernel 6.4.0-150700.51-default
Compiler: C/C++/Fortran: Version 5.1.0 of AOCC
Compiler Category: Vendor
Firmware: Lenovo BIOS Version KAE141G 5.81 released Jan-2026
File System: xfs
System State: Run level 3 (multi-user)
Base Pointers: 64-bit
Peak Pointers: 64-bit
Other: None
Power Management: BIOS and OS set to balance power and performance
Power
Max. Power (W): 930
Idle Power (W): 148.26
Min. Temperature (C): 21.88
Elevation (m): 43
Line Standard: 220 V / 50 Hz / 1 phase / 3 wires
Provisioning: Line-powered
Power Settings
Management FW: Version 56.2 of KAX367O
Memory Mode: Normal
Power-Relevant Hardware
Power Supply: 1 x 1800 W (non-redundant)
  Details: ThinkSystem 1800W 230V Platinum Hot-Swap Gen2
Power Supply v2
4P57A78362
Backplane: 8 x 2.5-inch HDD back plane
Other Storage: None
Storage Model #s: 4XB7A82259
NICs Installed: 1 x ThinkSystem Ethernet 4-port Adaptor @ 1 Gb
NICs Enabled (FW/OS): 4 / 1
NICs Connected/Speed: 1 @ 1 Gb
Other HW Model #s: 6 x Performance fans
Power Analyzer
Power Analyzer: WIN:9888
Hardware Vendor: YOKOGAWA, Inc.
Model: YokogawaWT310E
Serial Number: C3UD17023E
Input Connection: Default
Metrology Institute: CNAS
Calibration By: CEPREI Calibration and Testing Centre
Calibration Label: 1GA25011731-0005
Calibration Date: 15-Sep-2025
PTDaemon® Version: 1.11.1 (462c978e; 2024-09-07)
Setup Description: Connected to PSU1
Current Ranges Used: 5A
Voltage Range Used: 300V
Temperature Meter
Temperature Meter: WIN:9889
Hardware Vendor: Digi International, Inc.
Model: DigiWATCHPORT_H
Serial Number: W63181846
Input Connection: USB
PTDaemon Version: 1.11.1 (462c978e; 2024-09-07)
Setup Description: 50 mm in front of SUT main intake

Base Results Table

Benchmark Copies Seconds Ratio Energy
(kJ)		 Energy
Ratio		 Average
Power		 Maximum
Power		 Seconds Ratio Energy
(kJ)		 Energy
Ratio		 Average
Power		 Maximum
Power		 Seconds Ratio Energy
(kJ)		 Energy
Ratio		 Average
Power		 Maximum
Power
709.cactus_r 192 95.7 1720 73.2 1910 765 791 95.8 1720 74.3 1890 775 800 94.8 1740 73.9 1900 779 805
722.palm_r 192 4700 540 3680 58.5 783 800 4710 538 3710 58.0 788 804 4700 539 3700 58.2 786 802
731.astcenc_r 192 2230 723 1270 1060 569 610 2240 721 1280 1050 571 608 2230 723 1270 1060 571 610
736.ocio_r 192 2680 626 1750 80.2 653 750 2680 626 1760 80.1 654 750 2690 626 1750 80.2 653 746
737.gmsh_r 192 2200 401 1300 56.8 592 684 2200 401 1300 56.7 593 690 2200 401 1300 56.7 592 688
748.flightdm_r 192 1800 765 1120 1030 622 637 1800 766 1120 1030 625 637 1790 766 1120 1030 625 636
749.fotonik3d_r 192 9400 236 5760 32.9 612 625 9430 235 5770 32.8 612 624 9410 236 5770 32.9 613 625
765.roms_r 192 7300 414 5080 52.1 695 718 7300 414 5080 52.0 697 718 7290 415 5070 52.1 696 719
766.femflow_r 192 1940 1450 1570 1520 811 837 1940 1450 1580 1510 813 836 1930 1460 1570 1520 813 834
767.nest_r 192 2560 594 1710 74.2 666 747 2570 593 1700 74.6 663 748 2560 595 1700 74.7 664 746
772.marian_r 192 1860 1630 1520 1680 817 925 1850 1640 1520 1680 820 930 1850 1640 1520 1680 820 922
782.lbm_r 192 3710 297 2420 40.4 653 657 3710 296 2430 40.4 653 658 3710 297 2420 40.5 651 655
SPECrate®2026_fp_base 64600
SPECrate®2026_fp_energy_base 80.30
Results appear in the order in which they were run. Bold underlined text indicates a median measurement.

Peak Results Table

Benchmark Copies Seconds Ratio Energy
(kJ)		 Energy
Ratio		 Average
Power		 Maximum
Power		 Seconds Ratio Energy
(kJ)		 Energy
Ratio		 Average
Power		 Maximum
Power		 Seconds Ratio Energy
(kJ)		 Energy
Ratio		 Average
Power		 Maximum
Power
709.cactus_r 192 95.7 1720 73.2 1910 765 791 95.8 1720 74.3 1890 775 800 94.8 1740 73.9 1900 779 805
722.palm_r 192 4700 540 3680 58.5 783 800 4710 538 3710 58.0 788 804 4700 539 3700 58.2 786 802
731.astcenc_r 192 2230 723 1270 1060 569 610 2240 721 1280 1050 571 608 2230 723 1270 1060 571 610
736.ocio_r 192 2680 626 1750 80.2 653 750 2680 626 1760 80.1 654 750 2690 626 1750 80.2 653 746
737.gmsh_r 192 2200 401 1300 56.8 592 684 2200 401 1300 56.7 593 690 2200 401 1300 56.7 592 688
748.flightdm_r 192 1800 765 1120 1030 622 637 1800 766 1120 1030 625 637 1790 766 1120 1030 625 636
749.fotonik3d_r 192 9400 236 5760 32.9 612 625 9430 235 5770 32.8 612 624 9410 236 5770 32.9 613 625
765.roms_r 192 7300 414 5080 52.1 695 718 7300 414 5080 52.0 697 718 7290 415 5070 52.1 696 719
766.femflow_r 192 1940 1450 1570 1520 811 837 1940 1450 1580 1510 813 836 1930 1460 1570 1520 813 834
767.nest_r 192 2560 594 1710 74.2 666 747 2570 593 1700 74.6 663 748 2560 595 1700 74.7 664 746
772.marian_r 192 1860 1630 1520 1680 817 925 1850 1640 1520 1680 820 930 1850 1640 1520 1680 820 922
782.lbm_r 192 3710 297 2420 40.4 653 657 3710 296 2430 40.4 653 658 3710 297 2420 40.5 651 655
SPECrate®2026_fp_peak 64600
SPECrate®2026_fp_energy_peak 80.30
Results appear in the order in which they were run. Bold underlined text indicates a median measurement.

Compiler Notes

The AMD64 AOCC Compiler Suite is available at
http://developer.amd.com/amd-aocc/

Submit Notes

The config file option 'submit' was used.
'numactl' was used to bind copies to the cores.
See the configuration file for details.

Operating System Notes

'ulimit -s unlimited' was used to set environment stack size limit
'ulimit -l 2097152' was used to set environment locked pages in memory limit

runcpu command invoked through numactl i.e.:
numactl --interleave=all runcpu <etc>

To limit dirty cache to 8% of memory, 'sysctl -w vm.dirty_ratio=8' run as root.
To limit swap usage to minimum necessary, 'sysctl -w vm.swappiness=1' run as root.
To free node-local memory and avoid remote memory usage,
'sysctl -w vm.zone_reclaim_mode=1' run as root.
To clear filesystem caches, 'sync; sysctl -w vm.drop_caches=3' run as root.
To disable address space layout randomization (ASLR) to reduce run-to-run
variability, 'sysctl -w kernel.randomize_va_space=0' run as root.
To enable Transparent Hugepages (THP) for all allocations,
'echo always > /sys/kernel/mm/transparent_hugepage/enabled' and
'echo always > /sys/kernel/mm/transparent_hugepage/defrag' run as root.

Environment Variables Notes

Environment variables set by runcpu before the start of the run:
LD_LIBRARY_PATH =
     "/home/cpu2026-0.902.0-amd_aocc510_znver5_A1/amd_rate_aocc510_znver5_A_l
     ib/lib:/home/cpu2026-0.902.0-amd_aocc510_znver5_A1/amd_rate_aocc510_znve
     r5_A_lib/lib32:"
MALLOC_CONF = "retain:true"

General Notes

Binaries were compiled on a system with 2x AMD EPYC Venice256 CPU + 2TiB Memory using Ubuntu 24.04

Platform Notes

BIOS configuration:
Choose Operating Mode set to Custom Mode
Core Performance Boost set to Disabled
NUMA Nodes per Socket set to NPS4
Memory Speed set to 5200MHz
BoostFmax set to Manual
BoostFmax Manual set to 2400
L2 Stream HW Prefetcher set to Disabled
L1 Stride Prefetcher set to Disabled

 Sysinfo program /home/cpu2026-0.902.0-amd_aocc510_znver5_A1/bin/sysinfo
 Rev: 069f95da7e7f5d81b2ce48a82150e54f
 running on localhost Thu Feb  5 10:15:07 2026

 SUT (System Under Test) info as seen by some common utilities.

 ------------------------------------------------------------
 Table of contents
 ------------------------------------------------------------
  1. uname -srvm
  2. w
  3. Username
  4. ulimit -a
  5. sysinfo process ancestry
  6. /proc/cpuinfo
  7. lscpu
  8. numactl --hardware
  9. /proc/meminfo
 10. who -r
 11. Systemd service manager version: systemd 254 (254.24+suse.148.g83b9060b6e)
 12. Services, from systemctl list-unit-files
 13. Linux kernel boot-time arguments, from /proc/cmdline
 14. cpupower frequency-info
 15. sysctl
 16. /sys/kernel/mm/transparent_hugepage
 17. /sys/kernel/mm/transparent_hugepage/khugepaged
 18. OS release
 19. Disk information
 20. /sys/devices/virtual/dmi/id
 21. dmidecode
 22. BIOS
 ------------------------------------------------------------

 ------------------------------------------------------------
 1. uname -srvm
   Linux 6.4.0-150700.51-default #1 SMP PREEMPT_DYNAMIC Wed Apr 30 21:35:43 UTC 2025 (6930611) x86_64

 ------------------------------------------------------------
 2. w
    10:15:07 up 4 min,  1 user,  load average: 0.26, 0.42, 0.23
   USER     TTY      FROM             LOGIN@   IDLE   JCPU   PCPU WHAT

 ------------------------------------------------------------
 3. Username
   From environment variable $USER:  root

 ------------------------------------------------------------
 4. ulimit -a
   core file size          (blocks, -c) unlimited
   data seg size           (kbytes, -d) unlimited
   scheduling priority             (-e) 0
   file size               (blocks, -f) unlimited
   pending signals                 (-i) 3093392
   max locked memory       (kbytes, -l) 2097152
   max memory size         (kbytes, -m) unlimited
   open files                      (-n) 1024
   pipe size            (512 bytes, -p) 8
   POSIX message queues     (bytes, -q) 819200
   real-time priority              (-r) 0
   stack size              (kbytes, -s) unlimited
   cpu time               (seconds, -t) unlimited
   max user processes              (-u) 3093392
   virtual memory          (kbytes, -v) unlimited
   file locks                      (-x) unlimited

 ------------------------------------------------------------
 5. sysinfo process ancestry
  /usr/lib/systemd/systemd --switched-root --system --deserialize=42
  sshd: /usr/sbin/sshd -D [listener] 0 of 10-100 startups
  sshd: root [priv]
  sshd: root@notty
  /bin/bash ./02.remote_local_SPECcpu_1.02.sh
  /bin/bash ./Run023-compliant-amd-ratefp_base.sh
  python3 ./run_amd_rate_aocc510_znver5_A1.py
  /bin/bash ./amd_rate_aocc510_znver5_A1.sh
  runcpu --power --config amd_rate_aocc510_znver5_A1.cfg --tune base --reportable --iterations 3 fprate
  runcpu --power --configfile amd_rate_aocc510_znver5_A1.cfg --tune base --reportable --iterations 3 --runmode
    rate --tune base --size test:train:refrate fprate --nopreenv --note-preenv --logfile
    $SPEC/tmp/CPU2026.024/templogs/preenv.fprate.024.0.log --lognum 024.0 --from_runcpu 2
  specperl $SPEC/bin/sysinfo
 $SPEC = /home/cpu2026-0.902.0-amd_aocc510_znver5_A1

 ------------------------------------------------------------
 6. /proc/cpuinfo
     model name      : AMD EPYC 9655 96-Core Processor
     vendor_id       : AuthenticAMD
     cpu family      : 26
     model           : 2
     stepping        : 1
     microcode       : 0xb002152
     bugs            : sysret_ss_attrs spectre_v1 spectre_v2 spec_store_bypass srso
     TLB size        : 192 4K pages
     cpu cores       : 96
     siblings        : 192
     2 physical ids (chips)
     384 processors (hardware threads)
     physical id 0: core ids 0-95
     physical id 1: core ids 0-95
     physical id 0: apicids 0-191
     physical id 1: apicids 256-447
   Caution: /proc/cpuinfo data regarding chips, cores, and threads is not necessarily reliable, especially for
   virtualized systems.  Use the above data carefully.

 ------------------------------------------------------------
 7. lscpu

 From lscpu from util-linux 2.40.4:
   Architecture:                         x86_64
   CPU op-mode(s):                       32-bit, 64-bit
   Address sizes:                        52 bits physical, 57 bits virtual
   Byte Order:                           Little Endian
   CPU(s):                               384
   On-line CPU(s) list:                  0-383
   Vendor ID:                            AuthenticAMD
   Model name:                           AMD EPYC 9655 96-Core Processor
   CPU family:                           26
   Model:                                2
   Thread(s) per core:                   2
   Core(s) per socket:                   96
   Socket(s):                            2
   Stepping:                             1
   CPU(s) scaling MHz:                   58%
   CPU max MHz:                          2600.0000
   CPU min MHz:                          1500.0000
   BogoMIPS:                             5191.84
   Flags:                                fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat
                                         pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb
                                         rdtscp lm constant_tsc rep_good amd_lbr_v2 nopl nonstop_tsc cpuid
                                         extd_apicid aperfmperf rapl pni pclmulqdq monitor ssse3 fma cx16 pcid
                                         sse4_1 sse4_2 x2apic movbe popcnt aes xsave avx f16c rdrand lahf_lm
                                         cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch
                                         osvw ibs skinit wdt tce topoext perfctr_core perfctr_nb bpext
                                         perfctr_llc mwaitx cat_l3 cdp_l3 hw_pstate ssbd mba perfmon_v2 ibrs
                                         ibpb stibp ibrs_enhanced vmmcall fsgsbase tsc_adjust bmi1 avx2 smep
                                         bmi2 erms invpcid cqm rdt_a avx512f avx512dq rdseed adx smap
                                         avx512ifma clflushopt clwb avx512cd sha_ni avx512bw avx512vl xsaveopt
                                         xsavec xgetbv1 xsaves cqm_llc cqm_occup_llc cqm_mbm_total
                                         cqm_mbm_local user_shstk avx_vnni avx512_bf16 clzero irperf
                                         xsaveerptr rdpru wbnoinvd amd_ppin cppc amd_ibpb_ret arat npt lbrv
                                         svm_lock nrip_save tsc_scale vmcb_clean flushbyasid decodeassists
                                         pausefilter pfthreshold avic v_vmsave_vmload vgif x2avic v_spec_ctrl
                                         vnmi avx512vbmi umip pku ospke avx512_vbmi2 gfni vaes vpclmulqdq
                                         avx512_vnni avx512_bitalg avx512_vpopcntdq la57 rdpid bus_lock_detect
                                         movdiri movdir64b overflow_recov succor smca fsrm avx512_vp2intersect
                                         flush_l1d debug_swap hv_inuse_wr_allowed srso_user_kernel_no
                                         amd_lbr_pmc_freeze
   Virtualization:                       AMD-V
   L1d cache:                            9 MiB (192 instances)
   L1i cache:                            6 MiB (192 instances)
   L2 cache:                             192 MiB (192 instances)
   L3 cache:                             768 MiB (24 instances)
   NUMA node(s):                         8
   NUMA node0 CPU(s):                    0-23,192-215
   NUMA node1 CPU(s):                    24-47,216-239
   NUMA node2 CPU(s):                    48-71,240-263
   NUMA node3 CPU(s):                    72-95,264-287
   NUMA node4 CPU(s):                    96-119,288-311
   NUMA node5 CPU(s):                    120-143,312-335
   NUMA node6 CPU(s):                    144-167,336-359
   NUMA node7 CPU(s):                    168-191,360-383
   Vulnerability Gather data sampling:   Not affected
   Vulnerability Itlb multihit:          Not affected
   Vulnerability L1tf:                   Not affected
   Vulnerability Mds:                    Not affected
   Vulnerability Meltdown:               Not affected
   Vulnerability Mmio stale data:        Not affected
   Vulnerability Reg file data sampling: Not affected
   Vulnerability Retbleed:               Not affected
   Vulnerability Spec rstack overflow:   Mitigation; IBPB on VMEXIT only
   Vulnerability Spec store bypass:      Mitigation; Speculative Store Bypass disabled via prctl
   Vulnerability Spectre v1:             Mitigation; usercopy/swapgs barriers and __user pointer sanitization
   Vulnerability Spectre v2:             Mitigation; Enhanced / Automatic IBRS; IBPB conditional; STIBP
                                         always-on; RSB filling; PBRSB-eIBRS Not affected; BHI Not affected
   Vulnerability Srbds:                  Not affected
   Vulnerability Tsx async abort:        Not affected

 From lscpu --cache:
      NAME ONE-SIZE ALL-SIZE WAYS TYPE        LEVEL  SETS PHY-LINE COHERENCY-SIZE
      L1d       48K       9M   12 Data            1    64        1             64
      L1i       32K       6M    8 Instruction     1    64        1             64
      L2         1M     192M   16 Unified         2  1024        1             64
      L3        32M     768M   16 Unified         3 32768        1             64

 ------------------------------------------------------------
 8. numactl --hardware
 NOTE: a numactl 'node' might or might not correspond to a physical chip.
   available: 8 nodes (0-7)
   node 0 cpus: 0-23,192-215
   node 0 size: 96272 MB
   node 0 free: 95897 MB
   node 1 cpus: 24-47,216-239
   node 1 size: 96755 MB
   node 1 free: 96310 MB
   node 2 cpus: 48-71,240-263
   node 2 size: 96755 MB
   node 2 free: 96376 MB
   node 3 cpus: 72-95,264-287
   node 3 size: 96755 MB
   node 3 free: 96325 MB
   node 4 cpus: 96-119,288-311
   node 4 size: 96716 MB
   node 4 free: 96350 MB
   node 5 cpus: 120-143,312-335
   node 5 size: 96755 MB
   node 5 free: 96406 MB
   node 6 cpus: 144-167,336-359
   node 6 size: 96755 MB
   node 6 free: 96367 MB
   node 7 cpus: 168-191,360-383
   node 7 size: 96609 MB
   node 7 free: 96230 MB
   node distances:
   node   0   1   2   3   4   5   6   7
     0:  10  12  12  12  32  32  32  32
     1:  12  10  12  12  32  32  32  32
     2:  12  12  10  12  32  32  32  32
     3:  12  12  12  10  32  32  32  32
     4:  32  32  32  32  10  12  12  12
     5:  32  32  32  32  12  10  12  12
     6:  32  32  32  32  12  12  10  12
     7:  32  32  32  32  12  12  12  10

 ------------------------------------------------------------
 9. /proc/meminfo
    MemTotal:       791935972 kB

 ------------------------------------------------------------
 10. who -r
   run-level 3 Feb 5 10:11

 ------------------------------------------------------------
 11. Systemd service manager version: systemd 254 (254.24+suse.148.g83b9060b6e)
   Default Target  Status
   multi-user      running

 ------------------------------------------------------------
 12. Services, from systemctl list-unit-files
   STATE            UNIT FILES
   enabled          YaST2-Firstboot YaST2-Second-Stage apparmor auditd cron getty@ irqbalance issue-generator
                    kbdsettings klog lvm2-monitor nscd postfix purge-kernels rollback rsyslog smartd sshd
                    systemd-pstore wicked wickedd-auto4 wickedd-dhcp4 wickedd-dhcp6 wickedd-nanny
   enabled-runtime  systemd-remount-fs
   disabled         autofs autoyast-initscripts blk-availability boot-sysctl ca-certificates chrony-wait
                    chronyd console-getty cups cups-browsed debug-shell ebtables exchange-bmc-os-info
                    firewalld fsidd gpm grub2-once haveged hwloc-dump-hwdata ipmi ipmievd issue-add-ssh-keys
                    kexec-load lunmask man-db-create multipathd nfs nfs-blkmap rpcbind rpmconfigcheck rsyncd
                    serial-getty@ smartd_generate_opts snmpd snmptrapd systemd-boot-check-no-failures
                    systemd-confext systemd-network-generator systemd-sysext systemd-time-wait-sync
                    systemd-timesyncd
   generated        ntp_sync
   indirect         systemd-userdbd wickedd

 ------------------------------------------------------------
 13. Linux kernel boot-time arguments, from /proc/cmdline
   BOOT_IMAGE=/boot/vmlinuz-6.4.0-150700.51-default
   root=UUID=6b4a02b3-a7c2-4def-af3d-b12e11842422
   splash=silent
   mitigations=auto
   quiet
   security=apparmor

 ------------------------------------------------------------
 14. cpupower frequency-info
   analyzing CPU 270:
     current policy: frequency should be within 1.50 GHz and 2.60 GHz.
                     The governor "ondemand" may decide which speed to use
                     within this range.
     boost state support:
       Supported: no
       Active: no

 ------------------------------------------------------------
 15. sysctl
   kernel.numa_balancing               1
   kernel.randomize_va_space           0
   vm.compaction_proactiveness        20
   vm.dirty_background_bytes           0
   vm.dirty_background_ratio          10
   vm.dirty_bytes                      0
   vm.dirty_expire_centisecs        3000
   vm.dirty_ratio                      8
   vm.dirty_writeback_centisecs      500
   vm.dirtytime_expire_seconds     43200
   vm.extfrag_threshold              500
   vm.min_unmapped_ratio               1
   vm.nr_hugepages                     0
   vm.nr_hugepages_mempolicy           0
   vm.nr_overcommit_hugepages          0
   vm.swappiness                       1
   vm.watermark_boost_factor       15000
   vm.watermark_scale_factor          10
   vm.zone_reclaim_mode                1

 ------------------------------------------------------------
 16. /sys/kernel/mm/transparent_hugepage
   defrag          [always] defer defer+madvise madvise never
   enabled         [always] madvise never
   hpage_pmd_size  2097152
   shmem_enabled   always within_size advise [never] deny force

 ------------------------------------------------------------
 17. /sys/kernel/mm/transparent_hugepage/khugepaged
   alloc_sleep_millisecs   60000
   defrag                      1
   max_ptes_none             511
   max_ptes_shared           256
   max_ptes_swap              64
   pages_to_scan            4096
   scan_sleep_millisecs    10000

 ------------------------------------------------------------
 18. OS release
   From /etc/*-release /etc/*-version
   os-release SUSE Linux Enterprise Server 15 SP7

 ------------------------------------------------------------
 19. Disk information
 SPEC is set to: /home/cpu2026-0.902.0-amd_aocc510_znver5_A1
   Filesystem     Type  Size  Used Avail Use% Mounted on
   /dev/sda3      xfs   444G  130G  315G  30% /

 ------------------------------------------------------------
 20. /sys/devices/virtual/dmi/id
     Vendor:         Lenovo
     Product:        ThinkSystem SR665 V3
     Product Family: ThinkSystem
     Serial:         1234567890

 ------------------------------------------------------------
 21. dmidecode
   Additional information from dmidecode 3.6 follows.  WARNING: Use caution when you interpret this section.
   The 'dmidecode' program reads system data which is "intended to allow hardware to be accurately
   determined", but the intent may not be met, as there are frequent changes to hardware, firmware, and the
   "DMTF SMBIOS" standard.
   Memory:
     10x Samsung M321R4GA3PB2-CCPEC 32 GB 2 rank 6400, configured at 5200
     5x Samsung M321R4GA3PB2-CCPKC 32 GB 2 rank 6400, configured at 5200
     9x Samsung M321R4GA3PB2-CCPPC 32 GB 2 rank 6400, configured at 5200


 ------------------------------------------------------------
 22. BIOS
 (This section combines info from /sys/devices and dmidecode.)
    BIOS Vendor:       Lenovo
    BIOS Version:      KAE141G-5.81
    BIOS Date:         01/22/2026
    BIOS Revision:     5.81
    Firmware Revision: 56.20

Compiler Version Notes

==============================================================================
C       | 782.lbm_r(base)
------------------------------------------------------------------------------
AMD clang version 17.0.6 (CLANG: AOCC_5.1.0-Build#1994 2025_12_23)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /opt/AMD/aocc/aocc-compiler-5.1.0/bin
------------------------------------------------------------------------------

==============================================================================
C++     | 731.astcenc_r(base) 736.ocio_r(base) 748.flightdm_r(base)
        | 766.femflow_r(base) 767.nest_r(base) 772.marian_r(base)
------------------------------------------------------------------------------
AMD clang version 17.0.6 (CLANG: AOCC_5.1.0-Build#1994 2025_12_23)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /opt/AMD/aocc/aocc-compiler-5.1.0/bin
------------------------------------------------------------------------------

==============================================================================
C++, C  | 709.cactus_r(base) 737.gmsh_r(base)
------------------------------------------------------------------------------
AMD clang version 17.0.6 (CLANG: AOCC_5.1.0-Build#1994 2025_12_23)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /opt/AMD/aocc/aocc-compiler-5.1.0/bin
------------------------------------------------------------------------------

==============================================================================
Fortran | 722.palm_r(base) 749.fotonik3d_r(base) 765.roms_r(base)
------------------------------------------------------------------------------
AMD clang version 17.0.6 (CLANG: AOCC_5.1.0-Build#1994 2025_12_23)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /opt/AMD/aocc/aocc-compiler-5.1.0/bin
------------------------------------------------------------------------------

Base Compiler Invocation

C benchmarks:

 clang 

C++ benchmarks:

 clang++ 

Fortran benchmarks:

 flang 

Benchmarks using both C and C++:

 clang++   clang 

Base Portability Flags

709.cactus_r:  -DSPEC_LP64 
722.palm_r:  -DSPEC_LP64 
731.astcenc_r:  -DSPEC_LP64 
736.ocio_r:  -fno-finite-math-only   -DSPEC_LP64 
737.gmsh_r:  -fno-fast-math   -DSPEC_LP64 
748.flightdm_r:  -fno-reciprocal-math   -DSPEC_LP64 
749.fotonik3d_r:  -DSPEC_LP64 
765.roms_r:  -DSPEC_LP64 
766.femflow_r:  -DSPEC_LP64 
767.nest_r:  -fno-finite-math-only   -DSPEC_LP64 
772.marian_r:  -DSPEC_LP64 
782.lbm_r:  -DSPEC_LP64 

Base Optimization Flags

C benchmarks:

 -m64   -std=c18   -Wl,-mllvm -Wl,-align-all-nofallthru-blocks=6   -Wl,-mllvm -Wl,-reduce-array-computations=3   -Wl,-mllvm -Wl,-ldist-scalar-expand   -fenable-aggressive-gather   -ffast-math   -O3   -march=znver5   -fveclib=AMDLIBM   -fno-PIE   -no-pie   -flto   -fstruct-layout=7   -mllvm -unroll-threshold=50   -mllvm -inline-threshold=1000   -fremap-arrays   -fstrip-mining   -mllvm -reduce-array-computations=3   -zopt   -lamdlibm   -lamdalloc   -lflang 

C++ benchmarks:

 -m64   -std=c++17   -Wl,-mllvm -Wl,-align-all-nofallthru-blocks=6   -Wl,-mllvm -Wl,-reduce-array-computations=3   -Wl,-mllvm -Wl,-x86-use-vzeroupper=false   -Wl,-mllvm -Wl,-extra-inliner   -ffast-math   -O3   -march=znver5   -fveclib=AMDLIBM   -flto   -mllvm -unroll-threshold=100   -mllvm -loop-unswitch-threshold=200000   -mllvm -reduce-array-computations=3   -zopt   -lamdlibm   -lamdalloc   -lflang 

Fortran benchmarks:

 -m64   -Mstandard   -Wl,-mllvm -Wl,-align-all-nofallthru-blocks=6   -Wl,-mllvm -Wl,-reduce-array-computations=3   -Wl,-mllvm -Wl,-enable-X86-prefetching   -Wl,-mllvm -Wl,-enable-aggressive-gather=true   -Wl,-mllvm -Wl,-enable-masked-gather-sequence=false   -ffast-math   -O3   -march=znver5   -fveclib=AMDLIBM   -flto   -Mrecursive   -funroll-loops   -mllvm -lsr-in-nested-loop   -mllvm -reduce-array-computations=3   -fepilog-vectorization-of-inductions   -zopt   -lamdlibm   -lamdalloc   -lflang 

Benchmarks using both C and C++:

 -m64   -std=c++17   -std=c18   -Wl,-mllvm -Wl,-align-all-nofallthru-blocks=6   -Wl,-mllvm -Wl,-reduce-array-computations=3   -Wl,-mllvm -Wl,-x86-use-vzeroupper=false   -Wl,-mllvm -Wl,-extra-inliner   -ffast-math   -O3   -march=znver5   -fveclib=AMDLIBM   -fno-PIE   -no-pie   -flto   -fstruct-layout=7   -mllvm -unroll-threshold=50   -mllvm -inline-threshold=1000   -fremap-arrays   -fstrip-mining   -mllvm -reduce-array-computations=3   -zopt   -mllvm -unroll-threshold=100   -mllvm -loop-unswitch-threshold=200000   -lamdlibm   -lamdalloc   -lflang 

Peak Optimization Flags

C benchmarks:

782.lbm_r:  basepeak = yes 

C++ benchmarks:

731.astcenc_r:  basepeak = yes 
736.ocio_r:  basepeak = yes 
748.flightdm_r:  basepeak = yes 
766.femflow_r:  basepeak = yes 
767.nest_r:  basepeak = yes 
772.marian_r:  basepeak = yes 

Fortran benchmarks:

722.palm_r:  basepeak = yes 
749.fotonik3d_r:  basepeak = yes 
765.roms_r:  basepeak = yes 

Benchmarks using both C and C++:

709.cactus_r:  basepeak = yes 
737.gmsh_r:  basepeak = yes 

The flags files that were used to format this result can be browsed at
http://www.spec.org/cpu2026/results/flags/Lenovo-Platform-SPECcpu-Flags-V1.2-Turin-M.html,
http://www.spec.org/cpu2026/results/flags/aocc-flags.2026-05-04.html.

You can also download the XML flags sources by saving the following links:
http://www.spec.org/cpu2026/results/flags/Lenovo-Platform-SPECcpu-Flags-V1.2-Turin-M.xml,
http://www.spec.org/cpu2026/results/flags/aocc-flags.2026-05-04.xml.

PTDaemon, SPEC CPU, and SPECrate are registered trademarks of the Standard Performance Evaluation Corporation. All other brand and product names appearing in this result are trademarks or registered trademarks of their respective holders.

For questions about this result, please contact the tester. For other inquiries, please contact info@spec.org
Copyright 2026 Standard Performance Evaluation Corporation
Tested with SPEC CPU®2026 v0.902.0 on 2026-02-04 21:15:06-0500.
Report generated on 2026-05-04 23:34:20 by SPEC CPU®2026 HTML formatter (f598b8d7).
Originally published on 2026-05-05.