SPEC CPU(R)2026 Floating Point Speed Result Hewlett Packard Enterprise ProLiant DL365 Gen11 (2.40 GHz, AMD EPYC 9745) Test Sponsor: HPE CPU2026 License: 3 Test date: Sep-2026 Test sponsor: HPE Hardware availability: Oct-2024 Tested by: HPE Software availability: May-2026 Base Base Base Peak Peak Peak Benchmarks Threads Run Time Ratio Threads Run Time Ratio ---------------- ------- --------- --------- ------- --------- --------- 800.pot3d_s 256 50.3 13.4 S 256 46.0 14.6 S 800.pot3d_s 256 50.9 13.2 S 256 46.7 14.4 * 800.pot3d_s 256 50.6 13.3 * 256 51.0 13.2 S 803.sph_exa_s 256 33.2 37.3 S 256 33.1 37.4 * 803.sph_exa_s 256 33.8 36.6 S 256 33.6 36.8 S 803.sph_exa_s 256 33.7 36.8 * 256 32.7 37.9 S 809.cactus_s 256 78.1 14.4 S 256 77.3 14.5 * 809.cactus_s 256 77.6 14.5 S 256 77.5 14.5 S 809.cactus_s 256 77.8 14.4 * 256 77.0 14.6 S 811.tealeaf_s 256 18.7 29.8 * 256 18.6 29.9 S 811.tealeaf_s 256 18.7 29.8 S 256 18.7 29.8 * 811.tealeaf_s 256 18.9 29.5 S 256 18.8 29.7 S 816.nab_s 256 40.5 27.8 * 256 40.5 27.8 * 816.nab_s 256 40.5 27.8 S 256 40.5 27.8 S 816.nab_s 256 40.4 27.9 S 256 40.4 27.9 S 820.cloverleaf_s 256 59.3 14.4 S 256 58.0 14.8 S 820.cloverleaf_s 256 58.0 14.8 S 256 58.0 14.8 * 820.cloverleaf_s 256 58.0 14.8 * 256 58.1 14.7 S 822.palm_s 256 100 12.3 S 256 100 12.3 S 822.palm_s 256 100 12.2 * 256 100 12.2 * 822.palm_s 256 101 12.2 S 256 101 12.2 S 849.fotonik3d_s 256 60.5 10.9 * 256 60.4 10.9 S 849.fotonik3d_s 256 60.6 10.9 S 256 60.7 10.9 S 849.fotonik3d_s 256 60.3 11.0 S 256 60.5 10.9 * 857.namd_s 256 92.8 15.7 S 256 92.8 15.7 S 857.namd_s 256 92.4 15.7 S 256 92.4 15.7 S 857.namd_s 256 92.6 15.7 * 256 92.6 15.7 * 865.roms_s 256 35.5 30.7 * 256 33.5 32.5 S 865.roms_s 256 35.8 30.5 S 256 33.6 32.5 * 865.roms_s 256 35.2 31.0 S 256 33.6 32.5 S 867.nest_s 256 46.1 46.8 S 256 46.1 46.8 S 867.nest_s 256 48.6 44.5 S 256 48.6 44.5 S 867.nest_s 256 46.3 46.7 * 256 46.3 46.7 * 872.marian_s 256 128 8.45 S 256 119 9.06 * 872.marian_s 256 127 8.49 S 256 119 9.06 S 872.marian_s 256 128 8.45 * 256 119 9.09 S 881.neutron_s 256 146 5.58 * 256 146 5.58 * 881.neutron_s 256 148 5.52 S 256 148 5.52 S 881.neutron_s 256 136 5.99 S 256 136 5.99 S ================================================================================== 800.pot3d_s 256 50.6 13.3 * 256 46.7 14.4 * 803.sph_exa_s 256 33.7 36.8 * 256 33.1 37.4 * 809.cactus_s 256 77.8 14.4 * 256 77.3 14.5 * 811.tealeaf_s 256 18.7 29.8 * 256 18.7 29.8 * 816.nab_s 256 40.5 27.8 * 256 40.5 27.8 * 820.cloverleaf_s 256 58.0 14.8 * 256 58.0 14.8 * 822.palm_s 256 100 12.2 * 256 100 12.2 * 849.fotonik3d_s 256 60.5 10.9 * 256 60.5 10.9 * 857.namd_s 256 92.6 15.7 * 256 92.6 15.7 * 865.roms_s 256 35.5 30.7 * 256 33.6 32.5 * 867.nest_s 256 46.3 46.7 * 256 46.3 46.7 * 872.marian_s 256 128 8.45 * 256 119 9.06 * 881.neutron_s 256 146 5.58 * 256 146 5.58 * SPECspeed(R)2026_fp_base 17.3 SPECspeed(R)2026_fp_peak 17.6 HARDWARE -------- CPU Name: AMD EPYC 9745 Max MHz: 3700 Nominal: 2400 Enabled: 256 cores, 2 chips 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: 256 MB I+D on chip per chip, 32 MB shared / 16 cores Other: None Memory: 1536 GB (24 x 64 GB 2Rx4 PC5-6400B-R) Storage: 1 x 1.6 TB NVMe SSD Cooling: Air Other: None SOFTWARE -------- OS: SUSE Linux Enterprise Server 15 SP7 Kernel 6.4.0-150700.53.6-default Compiler: C/C++: Version 5.2.0 of AOCC Fortran: Flang v22 Compiler Category: Vendor Firmware: HPE BIOS Version v3.22 08/20/2026 released Aug-2026 File System: btrfs System State: Run level 3 (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/ 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 = "0-255" LD_LIBRARY_PATH = "/home/cpu2026/amd_speed_aocc520_znver5_A_lib/lib:/home/cpu2026/amd_spee d_aocc520_znver5_A_lib/lib32:" MALLOC_CONF = "retain:true" OMP_THREAD_LIMIT = "256" General Notes ------------- Binaries were compiled on a system with an AMD EPYC 9754 CPU + 768 GiB Memory using Ubuntu 24.04 NA: The test sponsor attests, as of date of publication, that CVE-2017-5754 (Meltdown) is mitigated in the system as tested and documented. Yes: The test sponsor attests, as of date of publication, that CVE-2017-5753 (Spectre variant 1) is mitigated in the system as tested and documented. Yes: The test sponsor attests, as of date of publication, that CVE-2017-5715 (Spectre variant 2) is mitigated in the system as tested and documented. Platform Notes -------------- BIOS Configurations : Parameters are selected in the order shown below Workload Profile set to General Peak Frequency Compute Determinism Control set to Manual Performance Determinism set to Power Deterministic Memory Patrol Scrubbing set to Disabled ACPI CST C2 Latency set to 18 microseconds Thermal Configuration set to Maximum Cooling AMD SMT Option set to Disabled Workload Profile set to Custom Power Regulator set to OS Control Mode Sysinfo program /home/cpu2026/bin/sysinfo Rev: 779ab21020787073335a329f3a45e2cd running on localhost Tue Sep 15 20:03:50 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 (254.27+suse.167.g130293e510) 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 6.4.0-150700.53.6-default #1 SMP PREEMPT_DYNAMIC Tue Jul 1 14:54:47 UTC 2025 (8ab7501) x86_64 ------------------------------------------------------------ 2. w 20:03:51 up 2 min, 4 users, load average: 0.47, 0.25, 0.10 USER TTY FROM LOGIN@ IDLE JCPU PCPU WHAT ------------------------------------------------------------ 3. Username From environment variable $USER: root ------------------------------------------------------------ 4. ulimit -a core file size (blocks, -c) 0 data seg size (kbytes, -d) unlimited scheduling priority (-e) 0 file size (blocks, -f) unlimited pending signals (-i) 6190728 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) 6190728 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 $SPEC/run_fpspeed_sh.sh sudo ./run_fpspeed.py python3 ./run_fpspeed.py runcpu --config amd_speed_aocc520_znver5_A1.cfg --tune all --reportable --iterations 3 fpspeed runcpu --configfile amd_speed_aocc520_znver5_A1.cfg --tune all --reportable --iterations 3 --nopower --runmode speed --tune base:peak --size test:train:refspeed fpspeed --nopreenv --note-preenv --logfile $SPEC/tmp/CPU2026.001/templogs/preenv.fpspeed.001.0.log --lognum 001.0 --from_runcpu 2 specperl $SPEC/bin/sysinfo $SPEC = /home/cpu2026 ------------------------------------------------------------ 6. /proc/cpuinfo model name : AMD EPYC 9745 128-Core Processor vendor_id : AuthenticAMD cpu family : 26 model : 17 stepping : 0 microcode : 0xb101066 bugs : sysret_ss_attrs spectre_v1 spectre_v2 spec_store_bypass srso TLB size : 192 4K pages cpu cores : 128 siblings : 128 2 physical ids (chips) 256 processors (hardware threads) physical id 0: core ids 0-127 physical id 1: core ids 0-127 physical id 0: apicids 0-127 physical id 1: apicids 128-255 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): 256 On-line CPU(s) list: 0-255 Vendor ID: AuthenticAMD Model name: AMD EPYC 9745 128-Core Processor CPU family: 26 Model: 17 Thread(s) per core: 1 Core(s) per socket: 128 Socket(s): 2 Stepping: 0 Frequency boost: enabled CPU(s) scaling MHz: 100% CPU max MHz: 2400.0000 CPU min MHz: 1500.0000 BogoMIPS: 4792.31 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 debug_swap hv_inuse_wr_allowed srso_user_kernel_no amd_lbr_pmc_freeze Virtualization: AMD-V L1d cache: 12 MiB (256 instances) L1i cache: 8 MiB (256 instances) L2 cache: 256 MiB (256 instances) L3 cache: 512 MiB (16 instances) NUMA node(s): 2 NUMA node0 CPU(s): 0-127 NUMA node1 CPU(s): 128-255 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: 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 disabled; 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 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 512M 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 node 0 size: 773794 MB node 0 free: 772381 MB node 1 cpus: 128-255 node 1 size: 773917 MB node 1 free: 772388 MB node distances: node 0 1 0: 10 32 1: 32 10 ------------------------------------------------------------ 9. /proc/meminfo MemTotal: 1584856724 kB ------------------------------------------------------------ 10. who -r run-level 3 Sep 15 20:02 ------------------------------------------------------------ 11. Systemd service manager version: systemd 254 (254.27+suse.167.g130293e510) Default Target Status multi-user running ------------------------------------------------------------ 12. 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@ irqbalance issue-generator kbdsettings klog lvm2-monitor nscd nvmefc-boot-connections nvmf-autoconnect 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 dnsmasq ebtables exchange-bmc-os-info firewalld fsidd gnome-remote-desktop gpm grub2-once haveged hwloc-dump-hwdata ipmi ipmievd issue-add-ssh-keys kexec-load 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 vncserver@ wpa_supplicant@ indirect pcscd saned@ systemd-userdbd wickedd ------------------------------------------------------------ 13. Linux kernel boot-time arguments, from /proc/cmdline BOOT_IMAGE=/boot/vmlinuz-6.4.0-150700.53.6-default root=UUID=d0ab7ebe-8d2b-4ca4-97d8-878a5337a104 splash=silent mitigations=auto quiet security=apparmor ------------------------------------------------------------ 14. cpupower frequency-info analyzing CPU 14: current policy: frequency should be within 1.50 GHz and 2.40 GHz. The governor "performance" may decide which speed to use within this range. boost state support: Supported: yes Active: yes ------------------------------------------------------------ 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 Filesystem Type Size Used Avail Use% Mounted on /dev/nvme1n1p2 btrfs 1.5T 35G 1.5T 3% /home ------------------------------------------------------------ 20. /sys/devices/virtual/dmi/id Vendor: HPE Product: ProLiant DL365 Gen11 Product Family: ProLiant Serial: DL365G11-008 ------------------------------------------------------------ 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 Hynix HMCG94AHBRA480N 64 GB 2 rank 6400 1x Hynix HMCG94AHBRA487N 64 GB 2 rank 6400 1x Micron MTC40F2046S1RC64BD2 MWFF 64 GB 2 rank 6400 12x Micron MTC40F2046S1RC64BD2 QSFF 64 GB 2 rank 6400 ------------------------------------------------------------ 22. BIOS (This section combines info from /sys/devices and dmidecode.) BIOS Vendor: HPE BIOS Version: 3.22 BIOS Date: 08/20/2026 BIOS Revision: 3.22 Firmware Revision: 1.79 Compiler Version Notes ---------------------- ============================================================================== C | 811.tealeaf_s(base, peak) 816.nab_s(base, peak) 881.neutron_s(base, | peak) ------------------------------------------------------------------------------ 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, peak) 857.namd_s(base, peak) 867.nest_s(base, | peak) 872.marian_s(base, peak) ------------------------------------------------------------------------------ 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, peak) ------------------------------------------------------------------------------ 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, peak) 820.cloverleaf_s(base, peak) | 822.palm_s(base, peak) 849.fotonik3d_s(base, peak) 865.roms_s(base, | peak) ------------------------------------------------------------------------------ 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 Peak Compiler Invocation ------------------------ C benchmarks: clang C++ benchmarks: clang++ Fortran benchmarks: flang-22 Benchmarks using both C and C++: clang++ clang Peak Portability Flags ---------------------- Same as Base Portability Flags Peak Optimization Flags ----------------------- C benchmarks: 811.tealeaf_s: -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 -fopenmp -DSPEC_OPENMP -lamdalloc -lamdlibm -fopenmp=libomp -lomp 816.nab_s: basepeak = yes 881.neutron_s: basepeak = yes C++ benchmarks: 803.sph_exa_s: -m64 -std=c++17 -Wl,-mllvm -Wl,-align-all-nofallthru-blocks=6 -Wl,-mllvm -Wl,-reduce-array-computations=3 -fprofile-instr-generate(pass 1) -fprofile-instr-use(pass 2) -O3 -flto -march=znver5 -fveclib=AMDLIBM -ffast-math -mllvm -reduce-array-computations=3 -mllvm -unroll-threshold=100 -fopenmp -DSPEC_OPENMP -pthread -lamdalloc -lamdlibm -fopenmp=libomp -lomp 857.namd_s: basepeak = yes 867.nest_s: basepeak = yes 872.marian_s: Same as 803.sph_exa_s Fortran benchmarks: 800.pot3d_s: -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 820.cloverleaf_s: Same as 800.pot3d_s 822.palm_s: basepeak = yes 849.fotonik3d_s: Same as 800.pot3d_s 865.roms_s: Same as 800.pot3d_s 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 -mllvm -unroll-threshold=100 -fopenmp -DSPEC_OPENMP -pthread -lamdalloc -lamdlibm -fopenmp=libomp -lomp Peak Other Flags ---------------- C benchmarks (except as noted below): -Wno-return-type -Wno-unused-command-line-argument 811.tealeaf_s: -Wno-return-type Benchmarks using both C and C++: -Wno-return-type The flags files that were used to format this result can be browsed at http://www.spec.org/cpu2026/results/flags/aocc-flags.2026-10-07.00.html http://www.spec.org/cpu2026/results/flags/HPE-Platform-Flags-AMD-Turin-rev1.12.html You can also download the XML flags sources by saving the following links: http://www.spec.org/cpu2026/results/flags/aocc-flags.2026-10-07.00.xml http://www.spec.org/cpu2026/results/flags/HPE-Platform-Flags-AMD-Turin-rev1.12.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 2026-09-15 10:33:50-0400. Report generated on 2026-10-07 10:41:50 by CPU2026 text formatter (aa18784a). Originally published on 2026-10-06.