SPEC CPU(R)2026 Floating Point Speed Result Quanta Cloud Technology QuantaGrid D44N-1U AMD EPYC 9755 Test Sponsor: Quanta Computer Inc. CPU2026 License: 9050 Test date: Jul-2026 Test sponsor: Quanta Computer Inc. Hardware availability: Oct-2024 Tested by: Quanta Computer Inc. Software availability: Jul-2026 Base Base Base Peak Peak Peak Benchmarks Threads Run Time Ratio Threads Run Time Ratio ---------------- ------- --------- --------- ------- --------- --------- 800.pot3d_s 256 47.2 14.3 S 800.pot3d_s 256 48.0 14.0 * 800.pot3d_s 256 48.1 14.0 S 803.sph_exa_s 256 30.9 40.1 S 803.sph_exa_s 256 31.0 40.0 S 803.sph_exa_s 256 30.9 40.0 * 809.cactus_s 256 85.6 13.1 * 809.cactus_s 256 85.7 13.1 S 809.cactus_s 256 85.6 13.1 S 811.tealeaf_s 256 20.2 27.6 S 811.tealeaf_s 256 20.0 27.8 * 811.tealeaf_s 256 19.9 28.0 S 816.nab_s 256 37.8 29.8 * 816.nab_s 256 37.8 29.8 S 816.nab_s 256 37.8 29.8 S 820.cloverleaf_s 256 58.7 14.6 S 820.cloverleaf_s 256 58.5 14.7 S 820.cloverleaf_s 256 58.5 14.6 * 822.palm_s 256 93.1 13.2 S 822.palm_s 256 93.1 13.2 * 822.palm_s 256 93.0 13.2 S 849.fotonik3d_s 256 63.1 10.5 S 849.fotonik3d_s 256 62.3 10.6 S 849.fotonik3d_s 256 63.1 10.5 * 857.namd_s 256 85.6 17.0 S 857.namd_s 256 85.2 17.0 S 857.namd_s 256 85.5 17.0 * 865.roms_s 256 29.2 37.3 * 865.roms_s 256 29.2 37.4 S 865.roms_s 256 29.2 37.3 S 867.nest_s 256 45.0 47.9 S 867.nest_s 256 41.8 51.7 S 867.nest_s 256 42.7 50.6 * 872.marian_s 256 115 9.37 S 872.marian_s 256 116 9.34 * 872.marian_s 256 116 9.30 S 881.neutron_s 256 120 6.79 S 881.neutron_s 256 119 6.88 S 881.neutron_s 256 119 6.87 * ================================================================================== 800.pot3d_s 256 48.0 14.0 * 803.sph_exa_s 256 30.9 40.0 * 809.cactus_s 256 85.6 13.1 * 811.tealeaf_s 256 20.0 27.8 * 816.nab_s 256 37.8 29.8 * 820.cloverleaf_s 256 58.5 14.6 * 822.palm_s 256 93.1 13.2 * 849.fotonik3d_s 256 63.1 10.5 * 857.namd_s 256 85.5 17.0 * 865.roms_s 256 29.2 37.3 * 867.nest_s 256 42.7 50.6 * 872.marian_s 256 116 9.34 * 881.neutron_s 256 119 6.87 * SPECspeed(R)2026_fp_base 18.3 SPECspeed(R)2026_fp_peak Not Run HARDWARE -------- CPU Name: AMD EPYC 9755 Max MHz: 4100 Nominal: 2700 Enabled: 256 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: 512 MB I+D on chip per chip, 32 MB shared / 8 cores Other: None Memory: 2304 GB (24 x 96 GB 2Rx4 PC5-6400B-R) Storage: 1 x3.84 TB NVMe SSD Cooling: Air Other: None SOFTWARE -------- OS: Ubuntu 24.04.3 LTS 6.8.0-136-generic Compiler: C/C++: Version 5.2.0 of AOCC Fortran: Flang v22 Compiler Category: Vendor Firmware: Version 3B10 released Apr-2026 File System: ext4 System State: Run level 5 (graphical multi-user) Base Pointers: 64-bit Peak Pointers: Not Applicable Other: None Power Management: BIOS and OS set to prefer performance at the cost of additional power usage Compiler Notes -------------- The AMD64 AOCC Compiler Suite is available at http://developer.amd.com/amd-aocc/ Flang v22 is available at https://flang.llvm.org/ 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 --physcpubind=0-15 runcpu 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. To disable Transparent Hugepages (THP) for 816.nab_s,865.roms_s=peak: 'echo never > /sys/kernel/mm/transparent_hugepage/enabled' and 'echo never > /sys/kernel/mm/transparent_hugepage/defrag' run as root. Environment Variables Notes --------------------------- Environment variables set by runcpu before the start of the run: GOMP_CPU_AFFINITY = "0-511" LD_LIBRARY_PATH = "/root/cpu2026/amd_speed_aocc520_znver5_A_lib/lib:/root/cpu2026/amd_spee d_aocc520_znver5_A_lib/lib32:/opt/AMD/aocc-compiler-5.2.0/ompd:/opt/AMD/ aocc-compiler-5.2.0/lib:/opt/AMD/aocc-compiler-5.2.0/lib32:/usr/lib/x86_ 64-linux-gnu:/usr/lib64:/usr/lib32:/usr/lib:" MALLOC_CONF = "retain:true" OMP_THREAD_LIMIT = "512" General Notes ------------- Binaries were compiled on a system with an AMD EPYC 9754 CPU + 768 GiB Memory using Ubuntu 24.04 Platform Notes -------------- BIOS Configuration: ACPI CST C2 Latency set to 18 NUMA nodes per socket set to NPS1 Determinism Control is Manual Determinism Slider set to Power cTDP Control set to Manual cTDP set to 500 PPT Control set to Manual PPT set to 500 Sysinfo program /root/cpu2026/bin/sysinfo Rev: 779ab21020787073335a329f3a45e2cd running on quanta Fri Jul 31 12:27:12 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 255 (255.4-1ubuntu8.16) 12. Services, from systemctl list-unit-files 13. Linux kernel boot-time arguments, from /proc/cmdline 14. cpupower frequency-info 15. tuned-adm active 16. sysctl 17. /sys/kernel/mm/transparent_hugepage 18. /sys/kernel/mm/transparent_hugepage/khugepaged 19. OS release 20. Disk information 21. /sys/devices/virtual/dmi/id 22. dmidecode 23. BIOS ------------------------------------------------------------ ------------------------------------------------------------ 1. uname -srvm Linux 6.8.0-136-generic #136-Ubuntu SMP PREEMPT_DYNAMIC Wed Jul 1 21:53:05 UTC 2026 x86_64 ------------------------------------------------------------ 2. w 12:27:12 up 2:22, 3 users, load average: 164.57, 79.68, 55.74 USER TTY FROM LOGIN@ IDLE JCPU PCPU WHAT root 192.168.118.1 10:54 2:22m 0.00s 0.02s sshd: root@notty root 192.168.118.1 10:54 2:22m 0.00s 3.22s sshd: root@pts/0 root tty1 - 10:04 2:22m 5.10s 3.85s python3 ./run_amd_speed_aocc520_znver5_A1.py ------------------------------------------------------------ 3. Username From environment variable $USER: root ------------------------------------------------------------ 4. ulimit -a time(seconds) unlimited file(blocks) unlimited data(kbytes) unlimited stack(kbytes) unlimited coredump(blocks) 0 memory(kbytes) unlimited locked memory(kbytes) 2048 process 9285512 nofiles 1024 vmemory(kbytes) unlimited locks unlimited rtprio 0 ------------------------------------------------------------ 5. sysinfo process ancestry /sbin/init /bin/login -f -- -bash python3 ./run_amd_speed_aocc520_znver5_A1.py runcpu --config amd_speed_aocc520_znver5_A1.cfg --tune base --reportable --iterations 3 fpspeed runcpu --configfile amd_speed_aocc520_znver5_A1.cfg --tune base --reportable --iterations 3 --nopower --runmode speed --tune base --size test:train:refspeed fpspeed --nopreenv --note-preenv --logfile $SPEC/tmp/CPU2026.002/templogs/preenv.fpspeed.002.0.log --lognum 002.0 --from_runcpu 2 specperl $SPEC/bin/sysinfo $SPEC = /root/cpu2026 ------------------------------------------------------------ 6. /proc/cpuinfo model name : AMD EPYC 9755 128-Core Processor vendor_id : AuthenticAMD cpu family : 26 model : 2 stepping : 1 microcode : 0xb002162 bugs : sysret_ss_attrs spectre_v1 spectre_v2 spec_store_bypass TLB size : 192 4K pages cpu cores : 128 siblings : 256 2 physical ids (chips) 512 processors (hardware threads) physical id 0: core ids 0-127 physical id 1: core ids 0-127 physical id 0: apicids 0-255 physical id 1: apicids 256-511 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 2.39.3: Architecture: x86_64 CPU op-mode(s): 32-bit, 64-bit Address sizes: 46 bits physical, 57 bits virtual Byte Order: Little Endian CPU(s): 512 On-line CPU(s) list: 0-511 Vendor ID: AuthenticAMD BIOS Vendor ID: Advanced Micro Devices, Inc. Model name: AMD EPYC 9755 128-Core Processor BIOS Model name: AMD EPYC 9755 128-Core Processor Unknown CPU @ 2.7GHz BIOS CPU family: 107 CPU family: 26 Model: 2 Thread(s) per core: 2 Core(s) per socket: 128 Socket(s): 2 Stepping: 1 Frequency boost: enabled CPU(s) scaling MHz: 66% CPU max MHz: 4121.1909 CPU min MHz: 1500.0000 BogoMIPS: 5391.60 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 cpb 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 sev sev_es debug_swap srso_user_kernel_no Virtualization: AMD-V L1d cache: 12 MiB (256 instances) L1i cache: 8 MiB (256 instances) L2 cache: 256 MiB (256 instances) L3 cache: 1 GiB (32 instances) NUMA node(s): 2 NUMA node0 CPU(s): 0-127,256-383 NUMA node1 CPU(s): 128-255,384-511 Vulnerability Gather data sampling: Not affected Vulnerability Indirect target selection: 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: Not affected 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; PBRSB-eIBRS Not affected; BHI Not affected Vulnerability Srbds: Not affected Vulnerability Tsa: Not affected Vulnerability Tsx async abort: Not affected Vulnerability Vmscape: Not affected From lscpu --cache: NAME ONE-SIZE ALL-SIZE WAYS TYPE LEVEL SETS PHY-LINE COHERENCY-SIZE L1d 48K 12M 12 Data 1 64 1 64 L1i 32K 8M 8 Instruction 1 64 1 64 L2 1M 256M 16 Unified 2 1024 1 64 L3 32M 1G 16 Unified 3 32768 1 64 ------------------------------------------------------------ 8. numactl --hardware NOTE: a numactl 'node' might or might not correspond to a physical chip. available: 2 nodes (0-1) node 0 cpus: 0-127,256-383 node 0 size: 1160488 MB node 0 free: 1155338 MB node 1 cpus: 128-255,384-511 node 1 size: 1161029 MB node 1 free: 1152098 MB node distances: node 0 1 0: 10 32 1: 32 10 ------------------------------------------------------------ 9. /proc/meminfo MemTotal: 2377234900 kB ------------------------------------------------------------ 10. who -r run-level 5 Jul 31 10:04 ------------------------------------------------------------ 11. Systemd service manager version: systemd 255 (255.4-1ubuntu8.16) Default Target Status graphical running ------------------------------------------------------------ 12. Services, from systemctl list-unit-files STATE UNIT FILES enabled apparmor blk-availability cloud-init-local console-setup cron dmesg e2scrub_reap finalrd getty@ grub-common ipmievd keyboard-setup lvm2-monitor multipathd networkd-dispatcher open-iscsi open-vm-tools pollinate rsyslog secureboot-db setvtrgb systemd-networkd systemd-networkd-wait-online systemd-pstore systemd-resolved systemd-timesyncd tuned ua-reboot-cmds ubuntu-advantage vgauth enabled-runtime netplan-ovs-cleanup rc-local systemd-fsck-root systemd-remount-fs disabled ModemManager apport cloud-config cloud-final cloud-init console-getty debug-shell gpu-manager grub-initrd-fallback iscsid nftables powertop rpcbind rsync serial-getty@ snapd ssh sysstat systemd-boot-check-no-failures systemd-confext systemd-network-generator systemd-networkd-wait-online@ systemd-pcrlock-file-system systemd-pcrlock-firmware-code systemd-pcrlock-firmware-config systemd-pcrlock-machine-id systemd-pcrlock-make-policy systemd-pcrlock-secureboot-authority systemd-pcrlock-secureboot-policy systemd-sysext systemd-time-wait-sync thermald udisks2 ufw unattended-upgrades upower generated openipmi indirect systemd-sysupdate systemd-sysupdate-reboot uuidd masked cryptdisks cryptdisks-early hwclock multipath-tools-boot nfs-common screen-cleanup sudo x11-common ------------------------------------------------------------ 13. Linux kernel boot-time arguments, from /proc/cmdline BOOT_IMAGE=/boot/vmlinuz-6.8.0-136-generic root=UUID=d680ea38-6dda-4ab8-88d3-4f36bc5baa6c ro amd_iommu=on iommu=pt ------------------------------------------------------------ 14. cpupower frequency-info analyzing CPU 290: current policy: frequency should be within 1.50 GHz and 2.70 GHz. The governor "performance" may decide which speed to use within this range. boost state support: Supported: yes Active: yes Boost States: 0 Total States: 3 Pstate-P0: 2700MHz ------------------------------------------------------------ 15. tuned-adm active Current active profile: throughput-performance ------------------------------------------------------------ 16. 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 ------------------------------------------------------------ 17. /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 ------------------------------------------------------------ 18. /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 ------------------------------------------------------------ 19. OS release From /etc/*-release /etc/*-version os-release Ubuntu 24.04.3 LTS ------------------------------------------------------------ 20. Disk information SPEC is set to: /root/cpu2026 Filesystem Type Size Used Avail Use% Mounted on /dev/nvme0n1p2 ext4 3.5T 57G 3.3T 2% / ------------------------------------------------------------ 21. /sys/devices/virtual/dmi/id Vendor: Quanta Cloud Technology Inc. Product: QuantaGrid D44N-1U ------------------------------------------------------------ 22. dmidecode Additional information from dmidecode 3.5 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: 8x Samsung M321RYGA0PB2-CCPEC 96 GB 2 rank 6400 14x Samsung M321RYGA0PB2-CCPPC 96 GB 2 rank 6400 2x Samsung M321RYGA0PB2-CCPWC 96 GB 2 rank 6400 ------------------------------------------------------------ 23. BIOS (This section combines info from /sys/devices and dmidecode.) BIOS Vendor: American Megatrends International, LLC. BIOS Version: 3B10.QCT301 BIOS Date: 04/29/2026 BIOS Revision: 5.35 Firmware Revision: 5.7 Compiler Version Notes ---------------------- ============================================================================== C | 811.tealeaf_s(base) 816.nab_s(base) 881.neutron_s(base) ------------------------------------------------------------------------------ AMD clang version 17.0.6 (CLANG: AOCC_5.2.0-Build#2035 2026_04_10) Target: x86_64-unknown-linux-gnu Thread model: posix InstalledDir: /opt/AMD/aocc/aocc-compiler-rel-5.2.0-4925-2035/bin ------------------------------------------------------------------------------ ============================================================================== C++ | 803.sph_exa_s(base) 857.namd_s(base) 867.nest_s(base) | 872.marian_s(base) ------------------------------------------------------------------------------ AMD clang version 17.0.6 (CLANG: AOCC_5.2.0-Build#2035 2026_04_10) Target: x86_64-unknown-linux-gnu Thread model: posix InstalledDir: /opt/AMD/aocc/aocc-compiler-rel-5.2.0-4925-2035/bin ------------------------------------------------------------------------------ ============================================================================== C++, C | 809.cactus_s(base) ------------------------------------------------------------------------------ AMD clang version 17.0.6 (CLANG: AOCC_5.2.0-Build#2035 2026_04_10) Target: x86_64-unknown-linux-gnu Thread model: posix InstalledDir: /opt/AMD/aocc/aocc-compiler-rel-5.2.0-4925-2035/bin ------------------------------------------------------------------------------ ============================================================================== Fortran | 800.pot3d_s(base) 820.cloverleaf_s(base) 822.palm_s(base) | 849.fotonik3d_s(base) 865.roms_s(base) ------------------------------------------------------------------------------ flang version 22.1.0-rc2 (https://github.com/llvm/llvm-project a47b42eb9f9b302167b4fc413e6c92798d65dd0b) Target: x86_64-unknown-linux-gnu Thread model: posix InstalledDir: /opt/llvm/llvm-22.1.0-rc2/install/bin ------------------------------------------------------------------------------ Base Compiler Invocation ------------------------ C benchmarks: clang C++ benchmarks: clang++ Fortran benchmarks: flang-22 Benchmarks using both C and C++: clang++ clang Base Portability Flags ---------------------- 800.pot3d_s: -DSPEC_LP64 803.sph_exa_s: -DSPEC_LP64 809.cactus_s: -DSPEC_LP64 811.tealeaf_s: -DSPEC_LP64 816.nab_s: -DSPEC_LP64 820.cloverleaf_s: -DSPEC_LP64 822.palm_s: -DSPEC_LP64 849.fotonik3d_s: -DSPEC_LP64 857.namd_s: -DSPEC_LP64 865.roms_s: -DSPEC_LP64 867.nest_s: -fno-finite-math-only -DSPEC_LP64 872.marian_s: -DSPEC_LP64 881.neutron_s: -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 -O3 -flto -march=znver5 -fveclib=AMDLIBM -ffast-math -fremap-arrays -fstrip-mining -fstruct-layout=7 -mllvm -inline-threshold=1000 -mllvm -reduce-array-computations=3 -mllvm -unroll-threshold=50 -zopt -mrecip=none -fopenmp -DSPEC_OPENMP -lamdalloc -lamdlibm -fopenmp=libomp -lomp C++ benchmarks: -m64 -std=c++17 -Wl,-mllvm -Wl,-align-all-nofallthru-blocks=6 -Wl,-mllvm -Wl,-reduce-array-computations=3 -O3 -flto -march=znver5 -fveclib=AMDLIBM -ffast-math -mllvm -unroll-threshold=100 -mllvm -loop-unswitch-threshold=200000 -mllvm -reduce-array-computations=3 -zopt -fopenmp -DSPEC_OPENMP -pthread -lamdalloc -lamdlibm -fopenmp=libomp -lomp Fortran benchmarks: -m64 -std=f2018 -O3 -flto -march=znver5 -fveclib=AMDLIBM -ffast-math -funroll-loops -DSPEC_OPENMP -fopenmp -fdo-concurrent-to-openmp=host -lamdalloc -lamdlibm -fopenmp=libomp -lomp 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 -O3 -flto -march=znver5 -fveclib=AMDLIBM -ffast-math -fremap-arrays -fstrip-mining -fstruct-layout=7 -mllvm -inline-threshold=1000 -mllvm -reduce-array-computations=3 -mllvm -unroll-threshold=50 -zopt -mllvm -unroll-threshold=100 -mllvm -loop-unswitch-threshold=200000 -mrecip=none -fopenmp -DSPEC_OPENMP -pthread -lamdalloc -lamdlibm -fopenmp=libomp -lomp Base Other Flags ---------------- C benchmarks: -Wno-return-type -Wno-unused-command-line-argument Benchmarks using both C and C++: -Wno-return-type -Wno-unused-command-line-argument The flags files that were used to format this result can be browsed at http://www.spec.org/cpu2026/results/flags/aocc-flags.2026-08-11.00.html http://www.spec.org/cpu2026/results/flags/Quanta-Computer-Inc-amd-speccpu-setting-v1.1_AMD_Turin.html You can also download the XML flags sources by saving the following links: http://www.spec.org/cpu2026/results/flags/aocc-flags.2026-08-11.00.xml http://www.spec.org/cpu2026/results/flags/Quanta-Computer-Inc-amd-speccpu-setting-v1.1_AMD_Turin.xml SPEC CPU and SPECspeed 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(R)2026 v1.0.1 on 2026-07-31 08:27:12-0400. Report generated on 2026-10-07 10:46:38 by CPU2026 text formatter (aa18784a). Originally published on 2026-10-07.