SPEC CPU(R)2026 Floating Point Rate Result New H3C Technologies Co., Ltd. H3C UniServer R3950 G7 (AMD EPYC 9175F) CPU2026 License: 9066 Test date: Sep-2026 Test sponsor: New H3C Technologies Co., Ltd. Hardware availability: Oct-2024 Tested by: New H3C Technologies Co., Ltd. Software availability: Jan-2026 Base Base Base Peak Peak Peak Benchmarks Copies Run Time Rate Copies Run Time Rate ---------------- ------- --------- --------- ------- --------- --------- 709.cactus_r 32 71.6 384 S 32 71.6 384 S 709.cactus_r 32 71.7 383 * 32 71.7 383 * 709.cactus_r 32 72.0 381 S 32 72.0 381 S 722.palm_r 32 315 134 S 32 315 134 S 722.palm_r 32 313 135 S 32 313 135 S 722.palm_r 32 314 134 * 32 314 134 * 731.astcenc_r 32 181 149 S 32 180 149 S 731.astcenc_r 32 182 148 S 32 181 149 * 731.astcenc_r 32 181 148 * 32 181 148 S 736.ocio_r 32 183 153 * 32 183 153 S 736.ocio_r 32 183 153 S 32 182 154 S 736.ocio_r 32 182 153 S 32 183 153 * 737.gmsh_r 32 141 105 * 32 140 105 S 737.gmsh_r 32 140 105 S 32 140 105 * 737.gmsh_r 32 141 104 S 32 141 104 S 748.flightdm_r 32 140 164 S 32 141 162 S 748.flightdm_r 32 141 163 * 32 140 164 S 748.flightdm_r 32 141 162 S 32 140 164 * 749.fotonik3d_r 32 273 135 S 32 269 137 * 749.fotonik3d_r 32 271 136 S 32 270 137 S 749.fotonik3d_r 32 272 136 * 32 268 138 S 765.roms_r 32 247 204 S 32 247 204 S 765.roms_r 32 247 204 S 32 247 204 S 765.roms_r 32 247 204 * 32 247 204 * 766.femflow_r 32 147 319 S 32 147 319 S 766.femflow_r 32 147 319 * 32 147 319 * 766.femflow_r 32 149 316 S 32 149 316 S 767.nest_r 32 162 157 S 32 162 157 S 767.nest_r 32 164 155 S 32 164 155 S 767.nest_r 32 163 156 * 32 163 156 * 772.marian_r 32 139 363 S 32 139 364 * 772.marian_r 32 139 363 * 32 138 367 S 772.marian_r 32 139 364 S 32 141 359 S 782.lbm_r 32 166 110 S 32 161 114 S 782.lbm_r 32 164 112 S 32 166 110 S 782.lbm_r 32 165 111 * 32 161 114 * ================================================================================== 709.cactus_r 32 71.7 383 * 32 71.7 383 * 722.palm_r 32 314 134 * 32 314 134 * 731.astcenc_r 32 181 148 * 32 181 149 * 736.ocio_r 32 183 153 * 32 183 153 * 737.gmsh_r 32 141 105 * 32 140 105 * 748.flightdm_r 32 141 163 * 32 140 164 * 749.fotonik3d_r 32 272 136 * 32 269 137 * 765.roms_r 32 247 204 * 32 247 204 * 766.femflow_r 32 147 319 * 32 147 319 * 767.nest_r 32 163 156 * 32 163 156 * 772.marian_r 32 139 363 * 32 139 364 * 782.lbm_r 32 165 111 * 32 161 114 * SPECrate(R)2026_fp_base 179 SPECrate(R)2026_fp_peak 180 HARDWARE -------- CPU Name: AMD EPYC 9175F Max MHz: 5000 Nominal: 4200 Enabled: 16 cores, 1 chip, 2 threads/core Orderable: 1 chip 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 / 1 cores Other: None Memory: 768 GB (12 x 64 GB 2Rx4 PC5-6400B-R) Storage: 1 x 3.84 TB NVMe SSD Cooling: Air Other: None SOFTWARE -------- OS: SUSE Linux Enterprise Server 15 SP7 6.4.0-150700.51-default Compiler: C/C++/Fortran: Version 5.1.0 of AOCC Compiler Category: Vendor Firmware: Version 7.30.26 released Jul-2026 File System: xfs 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 = "/home/cpu2026/amd_rate_aocc510_znver5_B_lib/lib:/home/cpu2026/amd_rate_ aocc510_znver5_B_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: SVM Mode = Disabled SR-IOV Support = Disabled Determinism Slider = Power cTDP = 400 PPT = 400 NUMA nodes per socket = NPS 4 BMC Configuration: Fan mode = Full speed mode Sysinfo program /home/cpu2026/bin/sysinfo Rev: 779ab21020787073335a329f3a45e2cd running on localhost Sun Sep 20 13:04:51 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. Failed units, from systemctl list-units --state=failed 13. Services, from systemctl list-unit-files 14. Linux kernel boot-time arguments, from /proc/cmdline 15. cpupower frequency-info 16. tuned-adm active 17. sysctl 18. /sys/kernel/mm/transparent_hugepage 19. /sys/kernel/mm/transparent_hugepage/khugepaged 20. OS release 21. Disk information 22. /sys/devices/virtual/dmi/id 23. dmidecode 24. BIOS ------------------------------------------------------------ ------------------------------------------------------------ 1. uname -srvm Linux 6.4.0-150700.51-default #1 SMP PREEMPT_DYNAMIC Wed Apr 30 21:35:43 UTC 2025 (6930611/lp) x86_64 ------------------------------------------------------------ 2. w 13:04:51 up 1 day, 20:25, 2 users, load average: 19.60, 28.78, 30.81 USER TTY FROM LOGIN@ IDLE JCPU PCPU WHAT root tty1 - Fri16 44:18m 0.02s 0.02s -bash root pts/0 172.17.74.10 Fri16 3:44m 2.65s 1.81s python3 ./run_amd_rate_aocc510_znver5_B1.py ------------------------------------------------------------ 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) 3092128 max locked memory (kbytes, -l) 2048 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) 3092128 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@pts/0 -bash python3 ./run_amd_rate_aocc510_znver5_B1.py runcpu --config amd_rate_aocc510_znver5_B1.cfg --tune all --reportable --iterations 3 fprate runcpu --configfile amd_rate_aocc510_znver5_B1.cfg --tune all --reportable --iterations 3 --nopower --runmode rate --tune base:peak --size test:train:refrate fprate --nopreenv --note-preenv --logfile $SPEC/tmp/CPU2026.003/templogs/preenv.fprate.003.0.log --lognum 003.0 --from_runcpu 2 specperl $SPEC/bin/sysinfo $SPEC = /home/cpu2026 ------------------------------------------------------------ 6. /proc/cpuinfo model name : AMD EPYC 9175F 16-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 srso TLB size : 192 4K pages cpu cores : 16 siblings : 32 1 physical ids (chips) 32 processors (hardware threads) physical id 0: core ids 0-15 physical id 0: apicids 0-31 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): 32 On-line CPU(s) list: 0-31 Vendor ID: AuthenticAMD Model name: AMD EPYC 9175F 16-Core Processor CPU family: 26 Model: 2 Thread(s) per core: 2 Core(s) per socket: 16 Socket(s): 1 Stepping: 1 Frequency boost: enabled CPU(s) scaling MHz: 115% CPU max MHz: 4200.0000 CPU min MHz: 1500.0000 BogoMIPS: 8387.81 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 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 hv_inuse_wr_allowed srso_user_kernel_no amd_lbr_pmc_freeze L1d cache: 768 KiB (16 instances) L1i cache: 512 KiB (16 instances) L2 cache: 16 MiB (16 instances) L3 cache: 512 MiB (16 instances) NUMA node(s): 4 NUMA node0 CPU(s): 0-3,16-19 NUMA node1 CPU(s): 4-7,20-23 NUMA node2 CPU(s): 8-11,24-27 NUMA node3 CPU(s): 12-15,28-31 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 768K 12 Data 1 64 1 64 L1i 32K 512K 8 Instruction 1 64 1 64 L2 1M 16M 16 Unified 2 1024 1 64 L3 32M 512M 16 Unified 3 32768 1 64 ------------------------------------------------------------ 8. numactl --hardware NOTE: a numactl 'node' might or might not correspond to a physical chip. available: 4 nodes (0-3) node 0 cpus: 0-3,16-19 node 0 size: 192942 MB node 0 free: 192228 MB node 1 cpus: 4-7,20-23 node 1 size: 193533 MB node 1 free: 192191 MB node 2 cpus: 8-11,24-27 node 2 size: 193495 MB node 2 free: 192917 MB node 3 cpus: 12-15,28-31 node 3 size: 193090 MB node 3 free: 192417 MB node distances: node 0 1 2 3 0: 10 12 12 12 1: 12 10 12 12 2: 12 12 10 12 3: 12 12 12 10 ------------------------------------------------------------ 9. /proc/meminfo MemTotal: 791615112 kB ------------------------------------------------------------ 10. who -r run-level 5 Sep 18 16:39 ------------------------------------------------------------ 11. Systemd service manager version: systemd 254 (254.24+suse.148.g83b9060b6e) Default Target Status graphical degraded ------------------------------------------------------------ 12. Failed units, from systemctl list-units --state=failed UNIT LOAD ACTIVE SUB DESCRIPTION * display-manager.service loaded failed failed X Display Manager ------------------------------------------------------------ 13. Services, from systemctl list-unit-files STATE UNIT FILES enabled ModemManager YaST2-Firstboot YaST2-Second-Stage apparmor appstream-sync-cache auditd bluetooth cron display-manager getty@ issue-generator kbdsettings kdump kdump-early kdump-notify klog lvm2-monitor nscd postfix purge-kernels rollback rsyslog smartd sshd systemd-pstore wicked wickedd-auto4 wickedd-dhcp4 wickedd-dhcp6 wickedd-nanny wpa_supplicant enabled-runtime systemd-remount-fs disabled NetworkManager NetworkManager-dispatcher NetworkManager-wait-online accounts-daemon autofs autoyast-initscripts blk-availability bluetooth-mesh boot-sysctl ca-certificates chrony-wait chronyd console-getty cups cups-browsed debug-shell dmraid-activation dnsmasq ebtables exchange-bmc-os-info firewalld fsidd gnome-remote-desktop gpm grub2-once haveged hwloc-dump-hwdata ipmi ipmievd irqbalance issue-add-ssh-keys kexec-load ksm kvm_stat lunmask man-db-create multipathd nfs nfs-blkmap nmb openvpn@ ostree-remount ostree-state-overlay@ rpcbind rpmconfigcheck rsyncd rtkit-daemon samba-bgqd serial-getty@ smartd_generate_opts smb snmpd snmptrapd speech-dispatcherd systemd-boot-check-no-failures systemd-confext systemd-network-generator systemd-sysext systemd-time-wait-sync systemd-timesyncd tuned udisks2 update-system-flatpaks upower wpa_supplicant@ indirect pcscd saned@ systemd-userdbd wickedd ------------------------------------------------------------ 14. Linux kernel boot-time arguments, from /proc/cmdline BOOT_IMAGE=/boot/vmlinuz-6.4.0-150700.51-default root=UUID=175fa735-7a9b-4681-b6bb-bfbccdf5de6c splash=silent resume=/dev/disk/by-uuid/406a8b4e-fda8-4c7c-a003-8dcf181d7077 mitigations=auto quiet security=apparmor crashkernel=373M,high crashkernel=72M,low ------------------------------------------------------------ 15. cpupower frequency-info analyzing CPU 31: current policy: frequency should be within 1.50 GHz and 4.20 GHz. The governor "performance" may decide which speed to use within this range. boost state support: Supported: yes Active: yes ------------------------------------------------------------ 16. tuned-adm active No current active profile. ------------------------------------------------------------ 17. sysctl kernel.numa_balancing 0 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 ------------------------------------------------------------ 18. /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 ------------------------------------------------------------ 19. /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 ------------------------------------------------------------ 20. OS release From /etc/*-release /etc/*-version os-release SUSE Linux Enterprise Server 15 SP7 ------------------------------------------------------------ 21. Disk information SPEC is set to: /home/cpu2026 Filesystem Type Size Used Avail Use% Mounted on /dev/sda3 xfs 2.8T 100G 2.7T 4% /home ------------------------------------------------------------ 22. /sys/devices/virtual/dmi/id Vendor: New H3c Technologies Co., Ltd. Product: H3C UniServer R3950 G7 Product Family: AMD Turin Server Serial: 210235A56XH255000006 ------------------------------------------------------------ 23. 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: 11x SK Hynix HMCG94AHBRA480N 64 GB 2 rank 6400 1x SK Hynix HMCG94AHBRA481N 64 GB 2 rank 6400 ------------------------------------------------------------ 24. BIOS (This section combines info from /sys/devices and dmidecode.) BIOS Vendor: American Megatrends International, LLC. BIOS Version: 7.30.26 BIOS Date: 07/11/2026 BIOS Revision: 5.35 Firmware Revision: 2.21 Compiler Version Notes ---------------------- ============================================================================== C | 782.lbm_r(base, peak) ------------------------------------------------------------------------------ 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, peak) 736.ocio_r(base, peak) | 748.flightdm_r(base, peak) 766.femflow_r(base, peak) | 767.nest_r(base, peak) 772.marian_r(base, peak) ------------------------------------------------------------------------------ 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, peak) 737.gmsh_r(base, peak) ------------------------------------------------------------------------------ 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, peak) 749.fotonik3d_r(base, peak) 765.roms_r(base, | peak) ------------------------------------------------------------------------------ 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 ---------------------- 736.ocio_r: -fno-finite-math-only 737.gmsh_r: -fno-fast-math 748.flightdm_r: -fno-reciprocal-math 767.nest_r: -fno-finite-math-only 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 Compiler Invocation ------------------------ C benchmarks: clang C++ benchmarks: clang++ Fortran benchmarks: flang Benchmarks using both C and C++: clang++ clang Peak Portability Flags ---------------------- 736.ocio_r: -fno-finite-math-only 737.gmsh_r: -fno-fast-math 748.flightdm_r: -fno-reciprocal-math 767.nest_r: -fno-finite-math-only Peak Optimization Flags ----------------------- C benchmarks: -m64 -std=c18 -Wl,-mllvm -Wl,-align-all-nofallthru-blocks=6 -Wl,-mllvm -Wl,-reduce-array-computations=3 -ffast-math -Ofast -march=znver5 -fveclib=AMDLIBM -flto -fstruct-layout=7 -mllvm -unroll-threshold=50 -fremap-arrays -fstrip-mining -mllvm -inline-threshold=1000 -mllvm -reduce-array-computations=3 -zopt -lamdlibm -lamdalloc C++ benchmarks: 731.astcenc_r: -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 736.ocio_r: Same as 731.astcenc_r 748.flightdm_r: Same as 731.astcenc_r 766.femflow_r: basepeak = yes 767.nest_r: basepeak = yes 772.marian_r: Same as 731.astcenc_r Fortran benchmarks: 722.palm_r: basepeak = yes 749.fotonik3d_r: -m64 -Mstandard -Wl,-mllvm -Wl,-align-all-nofallthru-blocks=6 -Wl,-mllvm -Wl,-reduce-array-computations=3 -ffast-math -Ofast -march=znver5 -fveclib=AMDLIBM -flto -Mrecursive -mllvm -reduce-array-computations=3 -fepilog-vectorization-of-inductions -zopt -lamdlibm -lamdalloc -lflang 765.roms_r: basepeak = yes Benchmarks using both C and C++: 709.cactus_r: basepeak = yes 737.gmsh_r: -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 The flags files that were used to format this result can be browsed at http://www.spec.org/cpu2026/results/flags/aocc-flags.2026-05-04.00.html http://www.spec.org/cpu2026/results/flags/New_H3C-Platform-AMD-Settings-cpu2026-V1.2-Turin.html You can also download the XML flags sources by saving the following links: http://www.spec.org/cpu2026/results/flags/aocc-flags.2026-05-04.00.xml http://www.spec.org/cpu2026/results/flags/New_H3C-Platform-AMD-Settings-cpu2026-V1.2-Turin.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 v1.0.1 on 2026-09-20 01:04:50-0400. Report generated on 2026-10-07 10:42:46 by CPU2026 text formatter (aa18784a). Originally published on 2026-10-06.