SPEC CPU(R)2026 Floating Point Rate Result Supermicro Hyper A+ Server AS -2126HS-TN (H14DSH , AMD EPYC 9755) CPU2026 License: 001176 Test date: Feb-2026 Test sponsor: Supermicro Hardware availability: Oct-2024 Tested by: Supermicro Software availability: Jan-2026 Base Base Base Peak Peak Peak Benchmarks Copies Run Time Rate Copies Run Time Rate ---------------- ------- --------- --------- ------- --------- --------- 709.cactus_r 256 89.5 2460 S 256 89.5 2460 S 709.cactus_r 256 90.3 2430 S 256 90.3 2430 S 709.cactus_r 256 89.9 2440 * 256 89.9 2440 * 722.palm_r 256 468 721 * 256 468 721 * 722.palm_r 256 470 718 S 256 470 718 S 722.palm_r 256 467 723 S 256 467 723 S 731.astcenc_r 256 156 1380 S 256 156 1380 S 731.astcenc_r 256 155 1390 S 256 155 1390 S 731.astcenc_r 256 155 1390 * 256 155 1390 * 736.ocio_r 256 233 962 S 256 233 962 S 736.ocio_r 256 233 962 S 256 233 962 S 736.ocio_r 256 233 962 * 256 233 962 * 737.gmsh_r 256 164 718 * 256 164 718 * 737.gmsh_r 256 164 718 S 256 164 718 S 737.gmsh_r 256 164 717 S 256 164 717 S 748.flightdm_r 256 138 1330 S 256 138 1330 S 748.flightdm_r 256 138 1330 S 256 138 1330 S 748.flightdm_r 256 138 1330 * 256 138 1330 * 749.fotonik3d_r 256 1141 259 * 256 1141 259 * 749.fotonik3d_r 256 1141 259 S 256 1141 259 S 749.fotonik3d_r 256 1142 259 S 256 1142 259 S 765.roms_r 256 894 451 S 256 894 451 S 765.roms_r 256 894 451 * 256 894 451 * 765.roms_r 256 895 450 S 256 895 450 S 766.femflow_r 256 162 2320 S 256 162 2320 S 766.femflow_r 256 162 2320 S 256 162 2320 S 766.femflow_r 256 162 2320 * 256 162 2320 * 767.nest_r 256 206 986 * 256 206 986 * 767.nest_r 256 205 989 S 256 205 989 S 767.nest_r 256 218 932 S 256 218 932 S 772.marian_r 256 160 2530 S 256 160 2530 S 772.marian_r 256 160 2530 * 256 160 2530 * 772.marian_r 256 159 2540 S 256 159 2540 S 782.lbm_r 256 427 343 * 256 427 343 * 782.lbm_r 256 428 343 S 256 428 343 S 782.lbm_r 256 427 343 S 256 427 343 S ================================================================================== 709.cactus_r 256 89.9 2440 * 256 89.9 2440 * 722.palm_r 256 468 721 * 256 468 721 * 731.astcenc_r 256 155 1390 * 256 155 1390 * 736.ocio_r 256 233 962 * 256 233 962 * 737.gmsh_r 256 164 718 * 256 164 718 * 748.flightdm_r 256 138 1330 * 256 138 1330 * 749.fotonik3d_r 256 1141 259 * 256 1141 259 * 765.roms_r 256 894 451 * 256 894 451 * 766.femflow_r 256 162 2320 * 256 162 2320 * 767.nest_r 256 206 986 * 256 206 986 * 772.marian_r 256 160 2530 * 256 160 2530 * 782.lbm_r 256 427 343 * 256 427 343 * SPECrate(R)2026_fp_base 947 SPECrate(R)2026_fp_peak 947 HARDWARE -------- CPU Name: AMD EPYC 9755 Max MHz: 4100 Nominal: 2700 Enabled: 256 cores, 2 chips Orderable: 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 x 3.84 TB NVMe SSD Cooling: Air Other: None SOFTWARE -------- OS: Ubuntu 24.04.3 LTS 6.8.0-90-generic Compiler: C/C++/Fortran: Version 5.1.0 of AOCC Compiler Category: Vendor Firmware: Version 1.5 released May-2025 File System: ext4 System State: Run level 5 (multi-user) Base Pointers: 64-bit Peak Pointers: 64-bit 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/ 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 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 = "/spec/speccpu2026rc2bsub/amd_rate_aocc510_znver5_A_lib/lib:/spec/speccp u2026rc2bsub/amd_rate_aocc510_znver5_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 settings: SEV Control = Disabled SMEE = Disabled Memory Target Speed = DDR6400 Determinism Control = Manual Determinism Enable = Power TDP control = Manual TDP = 500 Package Power Limit Control = Manual Package Power Limit = 500 TSME = Disabled NUMA nodes per socket = NPS4 SMT Control = Disabled Sysinfo program /spec/speccpu2026rc2bsub/bin/sysinfo Rev: 069f95da7e7f5d81b2ce48a82150e54f running on smc9694turin-u24-os Mon Feb 2 03:33:28 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 (255.4-1ubuntu8.10) 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 6.8.0-90-generic #91-Ubuntu SMP PREEMPT_DYNAMIC Tue Nov 18 14:14:30 UTC 2025 x86_64 ------------------------------------------------------------ 2. w 03:33:28 up 20 min, 3 users, load average: 0.07, 0.02, 0.00 USER TTY FROM LOGIN@ IDLE JCPU PCPU WHAT root 10.23.196.148 03:29 20:23 0.00s 0.06s sshd: root@notty root 10.23.196.148 03:29 20:23 0.00s 0.10s sshd: root@pts/0 root tty1 - 03:28 4:48 0.07s ? -bash ------------------------------------------------------------ 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) 2097152 process 9286752 nofiles 1024 vmemory(kbytes) unlimited locks unlimited rtprio 0 ------------------------------------------------------------ 5. sysinfo process ancestry /sbin/init SCREEN -S cpu /bin/bash python3 ./run_amd_rate_aocc510_znver5_A1.py /bin/bash ./amd_rate_aocc510_znver5_A1.sh runcpu --config amd_rate_aocc510_znver5_A1.cfg --tune base --reportable --iterations 3 fprate runcpu --configfile amd_rate_aocc510_znver5_A1.cfg --tune base --reportable --iterations 3 --nopower --runmode rate --tune base --size test:train:refrate fprate --nopreenv --note-preenv --logfile $SPEC/tmp/CPU2026.001/templogs/preenv.fprate.001.0.log --lognum 001.0 --from_runcpu 2 specperl $SPEC/bin/sysinfo $SPEC = /spec/speccpu2026rc2bsub ------------------------------------------------------------ 6. /proc/cpuinfo model name : AMD EPYC 9755 128-Core Processor vendor_id : AuthenticAMD cpu family : 26 model : 2 stepping : 1 microcode : 0xb002147 bugs : sysret_ss_attrs spectre_v1 spectre_v2 spec_store_bypass TLB size : 192 4K pages cpu cores : 128 siblings : 128 2 physical ids (chips) 256 processors (hardware threads) physical id 0: core ids 0-7,16-23,32-39,48-55,64-71,80-87,96-103,112-119,128-135,144-151,160-167,176-183,192-199,208-215,224-231, 240-247 physical id 1: core ids 0-7,16-23,32-39,48-55,64-71,80-87,96-103,112-119,128-135,144-151,160-167,176-183,192-199,208-215,224-231, 240-247 physical id 0: apicids 0-7,16-23,32-39,48-55,64-71,80-87,96-103,112-119,128-135,144-151,160-167,176-183,192-199,208-215,224-231, 240-247 physical id 1: apicids 256-263,272-279,288-295,304-311,320-327,336-343,352-359,368-375,384-391,400-407,416-423,432-439,448-455,4 64-471,480-487,496-503 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: 52 bits physical, 57 bits virtual Byte Order: Little Endian CPU(s): 256 On-line CPU(s) list: 0-255 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: 1 Core(s) per socket: 128 Socket(s): 2 Stepping: 1 Frequency boost: enabled CPU(s) scaling MHz: 96% CPU max MHz: 2700.0000 CPU min MHz: 1500.0000 BogoMIPS: 5399.81 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 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 debug_swap 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): 8 NUMA node0 CPU(s): 0-31 NUMA node1 CPU(s): 32-63 NUMA node2 CPU(s): 64-95 NUMA node3 CPU(s): 96-127 NUMA node4 CPU(s): 128-159 NUMA node5 CPU(s): 160-191 NUMA node6 CPU(s): 192-223 NUMA node7 CPU(s): 224-255 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: 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 disabled; RSB filling; PBRSB-eIBRS Not affected; BHI Not affected Vulnerability Srbds: 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: 8 nodes (0-7) node 0 cpus: 0-31 node 0 size: 289846 MB node 0 free: 289190 MB node 1 cpus: 32-63 node 1 size: 290292 MB node 1 free: 289341 MB node 2 cpus: 64-95 node 2 size: 290249 MB node 2 free: 289720 MB node 3 cpus: 96-127 node 3 size: 290292 MB node 3 free: 289786 MB node 4 cpus: 128-159 node 4 size: 290292 MB node 4 free: 289778 MB node 5 cpus: 160-191 node 5 size: 290292 MB node 5 free: 289788 MB node 6 cpus: 192-223 node 6 size: 290292 MB node 6 free: 289752 MB node 7 cpus: 224-255 node 7 size: 290205 MB node 7 free: 289250 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: 2377488368 kB ------------------------------------------------------------ 10. who -r run-level 5 Feb 2 03:13 ------------------------------------------------------------ 11. Systemd service manager version: systemd 255 (255.4-1ubuntu8.10) Default Target Status graphical running ------------------------------------------------------------ 12. Services, from systemctl list-unit-files STATE UNIT FILES enabled ModemManager apparmor apport blk-availability cloud-config cloud-final cloud-init cloud-init-local console-setup cron dmesg e2scrub_reap finalrd getty@ gpu-manager grub-common grub-initrd-fallback keyboard-setup lvm2-monitor multipathd networkd-dispatcher nvmefc-boot-connections nvmf-autoconnect open-iscsi open-vm-tools pollinate rsyslog secureboot-db setvtrgb snapd sysstat systemd-networkd systemd-networkd-wait-online systemd-pstore systemd-resolved systemd-timesyncd thermald ua-reboot-cmds ubuntu-advantage udisks2 ufw unattended-upgrades vgauth enabled-runtime netplan-ovs-cleanup systemd-fsck-root systemd-remount-fs disabled console-getty debug-shell iscsid nftables rsync serial-getty@ ssh 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 upower indirect systemd-sysupdate systemd-sysupdate-reboot uuidd masked cryptdisks cryptdisks-early hwclock multipath-tools-boot screen-cleanup sudo x11-common ------------------------------------------------------------ 13. Linux kernel boot-time arguments, from /proc/cmdline BOOT_IMAGE=/boot/vmlinuz-6.8.0-90-generic root=UUID=365b48f2-b036-433d-970b-b75b18c86cd8 ro ------------------------------------------------------------ 14. cpupower frequency-info analyzing CPU 90: 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. 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 Ubuntu 24.04.3 LTS ------------------------------------------------------------ 19. Disk information SPEC is set to: /spec/speccpu2026rc2bsub Filesystem Type Size Used Avail Use% Mounted on /dev/nvme6n1p1 ext4 3.5T 14G 3.5T 1% /spec ------------------------------------------------------------ 20. /sys/devices/virtual/dmi/id Vendor: Supermicro Product: AS -2126HS-TN Product Family: SMC H14 Serial: S920464X4819694 ------------------------------------------------------------ 21. 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: 24x Samsung M321RYGA0PB2-CCPWC 96 GB 2 rank 6400 ------------------------------------------------------------ 22. BIOS (This section combines info from /sys/devices and dmidecode.) BIOS Vendor: American Megatrends International, LLC. BIOS Version: 1.5 BIOS Date: 05/12/2025 BIOS Revision: 5.35 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/aocc-flags.2026-05-04.html http://www.spec.org/cpu2026/results/flags/Supermicro-Platform-Settings-V1.2-Turin-revG.html You can also download the XML flags sources by saving the following links: http://www.spec.org/cpu2026/results/flags/aocc-flags.2026-05-04.xml http://www.spec.org/cpu2026/results/flags/Supermicro-Platform-Settings-V1.2-Turin-revG.xml 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(R)2026 v0.902.0 on 2026-02-01 22:33:28-0500. Report generated on 2026-05-11 16:38:15 by CPU2026 text formatter (aa18784a). Originally published on 2026-05-05.