SPEC CPU(R)2026 Floating Point Speed Result ASUSTeK Computer Inc. ASUS RS720A-E13-RS8U (2.25 GHz, AMD EPYC 9965) CPU2026 License: 9016 Test date: Jul-2026 Test sponsor: ASUSTeK Computer Inc. Hardware availability: Mar-2025 Tested by: ASUSTeK Computer Inc. Software availability: May-2026 Base Base Base Peak Peak Peak Benchmarks Threads Run Time Ratio Threads Run Time Ratio ---------------- ------- --------- --------- ------- --------- --------- 800.pot3d_s 384 36.0 18.7 S 384 35.9 18.7 S 800.pot3d_s 384 33.8 19.9 S 384 33.3 20.2 S 800.pot3d_s 384 34.3 19.6 * 384 34.1 19.7 * 803.sph_exa_s 384 28.8 43.0 S 384 28.1 44.0 * 803.sph_exa_s 384 28.7 43.2 * 384 28.1 44.0 S 803.sph_exa_s 384 28.6 43.2 S 384 28.3 43.8 S 809.cactus_s 384 80.4 14.0 S 192 72.0 15.6 S 809.cactus_s 384 79.2 14.2 S 192 72.0 15.6 S 809.cactus_s 384 79.2 14.2 * 192 72.0 15.6 * 811.tealeaf_s 384 13.5 41.2 S 384 13.2 42.1 S 811.tealeaf_s 384 13.4 41.7 * 384 13.2 42.0 * 811.tealeaf_s 384 13.3 41.7 S 384 13.3 41.9 S 816.nab_s 384 36.6 30.7 * 288 35.6 31.7 S 816.nab_s 384 36.7 30.7 S 288 35.6 31.6 * 816.nab_s 384 36.6 30.8 S 288 35.6 31.6 S 820.cloverleaf_s 384 55.0 15.6 S 384 55.1 15.6 S 820.cloverleaf_s 384 55.1 15.6 S 384 55.0 15.6 S 820.cloverleaf_s 384 55.1 15.6 * 384 55.1 15.6 * 822.palm_s 384 98.9 12.4 * 384 97.8 12.6 * 822.palm_s 384 97.3 12.6 S 384 97.3 12.6 S 822.palm_s 384 99.7 12.3 S 384 98.2 12.5 S 849.fotonik3d_s 384 78.4 8.41 S 288 68.4 9.64 S 849.fotonik3d_s 384 79.2 8.34 S 288 68.9 9.58 S 849.fotonik3d_s 384 79.0 8.35 * 288 68.5 9.64 * 857.namd_s 384 73.1 19.9 S 384 73.1 19.9 S 857.namd_s 384 72.5 20.0 * 384 72.5 20.0 * 857.namd_s 384 72.3 20.1 S 384 72.3 20.1 S 865.roms_s 384 28.5 38.3 S 384 26.6 41.0 S 865.roms_s 384 27.7 39.4 S 384 26.6 40.9 * 865.roms_s 384 28.1 38.9 * 384 26.7 40.9 S 867.nest_s 384 38.2 56.5 S 384 38.2 56.5 S 867.nest_s 384 36.7 58.9 S 384 36.7 58.9 S 867.nest_s 384 37.0 58.4 * 384 37.0 58.4 * 872.marian_s 384 125 8.64 S 192 116 9.37 S 872.marian_s 384 125 8.63 * 192 116 9.36 * 872.marian_s 384 125 8.63 S 192 116 9.36 S 881.neutron_s 384 128 6.35 * 192 110 7.38 * 881.neutron_s 384 129 6.31 S 192 110 7.42 S 881.neutron_s 384 128 6.36 S 192 111 7.36 S ================================================================================== 800.pot3d_s 384 34.3 19.6 * 384 34.1 19.7 * 803.sph_exa_s 384 28.7 43.2 * 384 28.1 44.0 * 809.cactus_s 384 79.2 14.2 * 192 72.0 15.6 * 811.tealeaf_s 384 13.4 41.7 * 384 13.2 42.0 * 816.nab_s 384 36.6 30.7 * 288 35.6 31.6 * 820.cloverleaf_s 384 55.1 15.6 * 384 55.1 15.6 * 822.palm_s 384 98.9 12.4 * 384 97.8 12.6 * 849.fotonik3d_s 384 79.0 8.35 * 288 68.5 9.64 * 857.namd_s 384 72.5 20.0 * 384 72.5 20.0 * 865.roms_s 384 28.1 38.9 * 384 26.6 40.9 * 867.nest_s 384 37.0 58.4 * 384 37.0 58.4 * 872.marian_s 384 125 8.63 * 192 116 9.36 * 881.neutron_s 384 128 6.35 * 192 110 7.38 * SPECspeed(R)2026_fp_base 19.6 SPECspeed(R)2026_fp_peak 20.5 HARDWARE -------- CPU Name: AMD EPYC 9965 Max MHz: 3700 Nominal: 2250 Enabled: 384 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: 384 MB I+D on chip per chip, 32 MB shared / 16 cores Other: None Memory: 768 GB (24 x 32 GB 2Rx4 PC5-6400B-R) Storage: 1 x 3.2 TB PCIe NVMe SSD Cooling: Air Other: None SOFTWARE -------- OS: SUSE Linux Enterprise Server 15 SP6 (x86_64) Kernel 6.4.0-150600.21-default Compiler: C/C++: Version 5.2.0 of AOCC Fortran: Flang v22 Compiler Category: Vendor Firmware: Version 1002 released Oct-2025 File System: xfs System State: Run level 3 (multi-user) Base Pointers: 64-bit Peak Pointers: 64-bit Other: None Power Management: BIOS and OS set to 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 OS set to performance mode via cpupower frequency-set -g performance 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 = "0-383" LD_LIBRARY_PATH = "/aocc520/amd_speed_aocc520_znver5_A_lib/lib:/aocc520/amd_speed_aocc520_ znver5_A_lib/lib32:" MALLOC_CONF = "retain:true" OMP_THREAD_LIMIT = "384" 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: SR-IOV Support = Disabled SVM Mode = Disabled APBDIS = 1 Determinism Control = Manual DRAM Scrub time = Disabled Engine Boost = Aggressive TDP Control = Manual TDP = 500 PPT Control = Manual PPT = 500 SMT Control = Disable BMC Configuration: Fan mode = Full speed mode Sysinfo program /aocc520/bin/sysinfo Rev: 779ab21020787073335a329f3a45e2cd running on localhost Thu Jul 16 13:13:14 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 (254.10+suse.84.ge8d77af424) 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 6.4.0-150600.21-default #1 SMP PREEMPT_DYNAMIC Thu May 16 11:09:22 UTC 2024 (36c1e09) x86_64 ------------------------------------------------------------ 2. w 13:13:14 up 20:55, 4 users, load average: 23.48, 103.25, 170.60 USER TTY FROM LOGIN@ IDLE JCPU PCPU WHAT root tty1 - Wed16 1:33m 1.46s 0.29s python3 ./run_amd_speed_aocc520_znver5_A1.py root tty2 - Wed16 1:49m 0.11s 0.11s -bash root tty3 - 10:38 2:14m 0.06s 0.06s -bash root tty4 - 11:16 1:50m 0.03s 0.03s -bash ------------------------------------------------------------ 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) 3092203 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) 3092203 virtual memory (kbytes, -v) unlimited file locks (-x) unlimited ------------------------------------------------------------ 5. sysinfo process ancestry /usr/lib/systemd/systemd --switched-root --system --deserialize=42 login -- root -bash /bin/bash ./speed.sh python3 ./run_amd_speed_aocc520_znver5_A1.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/CPU2026.132/templogs/preenv.fpspeed.132.0.log --lognum 132.0 --from_runcpu 2 specperl $SPEC/bin/sysinfo $SPEC = /aocc520 ------------------------------------------------------------ 6. /proc/cpuinfo model name : AMD EPYC 9965 192-Core Processor vendor_id : AuthenticAMD cpu family : 26 model : 17 stepping : 0 microcode : 0xb10104e bugs : sysret_ss_attrs spectre_v1 spectre_v2 spec_store_bypass TLB size : 192 4K pages cpu cores : 192 siblings : 192 2 physical ids (chips) 384 processors (hardware threads) physical id 0: core ids 0-191 physical id 1: core ids 0-191 physical id 0: apicids 0-191 physical id 1: apicids 256-447 Caution: /proc/cpuinfo data regarding chips, cores, and threads is not necessarily reliable, especially for virtualized systems. Use the above data carefully. ------------------------------------------------------------ 7. lscpu From lscpu from util-linux 2.39.3: 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): 384 On-line CPU(s) list: 0-383 Vendor ID: AuthenticAMD BIOS Vendor ID: Advanced Micro Devices, Inc. Model name: AMD EPYC 9965 192-Core Processor BIOS Model name: AMD EPYC 9965 192-Core Processor Unknown CPU @ 2.2GHz BIOS CPU family: 107 CPU family: 26 Model: 17 Thread(s) per core: 1 Core(s) per socket: 192 Socket(s): 2 Stepping: 0 Frequency boost: enabled CPU(s) scaling MHz: 62% CPU max MHz: 3700.1951 CPU min MHz: 1500.0000 BogoMIPS: 4493.56 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 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: 18 MiB (384 instances) L1i cache: 12 MiB (384 instances) L2 cache: 384 MiB (384 instances) L3 cache: 768 MiB (24 instances) NUMA node(s): 2 NUMA node0 CPU(s): 0-191 NUMA node1 CPU(s): 192-383 Vulnerability Gather data sampling: Not affected Vulnerability Itlb multihit: Not affected Vulnerability L1tf: Not affected Vulnerability Mds: Not affected Vulnerability Meltdown: Not affected Vulnerability Mmio stale data: Not affected Vulnerability Reg file data sampling: Not affected Vulnerability Retbleed: Not affected Vulnerability Spec rstack overflow: 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 From lscpu --cache: NAME ONE-SIZE ALL-SIZE WAYS TYPE LEVEL SETS PHY-LINE COHERENCY-SIZE L1d 48K 18M 12 Data 1 64 1 64 L1i 32K 12M 8 Instruction 1 64 1 64 L2 1M 384M 16 Unified 2 1024 1 64 L3 32M 768M 16 Unified 3 32768 1 64 ------------------------------------------------------------ 8. numactl --hardware NOTE: a numactl 'node' might or might not correspond to a physical chip. available: 2 nodes (0-1) node 0 cpus: 0-191 node 0 size: 386264 MB node 0 free: 384748 MB node 1 cpus: 192-383 node 1 size: 386812 MB node 1 free: 386123 MB node distances: node 0 1 0: 10 32 1: 32 10 ------------------------------------------------------------ 9. /proc/meminfo MemTotal: 791630876 kB ------------------------------------------------------------ 10. who -r run-level 3 Jul 15 16:18 ------------------------------------------------------------ 11. Systemd service manager version: systemd 254 (254.10+suse.84.ge8d77af424) Default Target Status multi-user running ------------------------------------------------------------ 12. Services, from systemctl list-unit-files STATE UNIT FILES enabled YaST2-Firstboot YaST2-Second-Stage apparmor auditd cron getty@ irqbalance issue-generator kbdsettings klog lvm2-monitor nscd nvmefc-boot-connections nvmf-autoconnect postfix purge-kernels rollback rsyslog smartd sshd systemd-pstore wicked wickedd-auto4 wickedd-dhcp4 wickedd-dhcp6 wickedd-nanny enabled-runtime systemd-remount-fs disabled autofs autoyast-initscripts blk-availability boot-sysctl ca-certificates chrony-wait chronyd console-getty cups cups-browsed debug-shell ebtables exchange-bmc-os-info firewalld fsidd gpm grub2-once haveged hwloc-dump-hwdata ipmi ipmievd issue-add-ssh-keys kexec-load lunmask man-db-create multipathd nfs nfs-blkmap rpcbind rpmconfigcheck rsyncd serial-getty@ smartd_generate_opts snmpd snmptrapd svnserve systemd-boot-check-no-failures systemd-confext systemd-network-generator systemd-sysext systemd-time-wait-sync systemd-timesyncd tuned udisks2 indirect systemd-userdbd wickedd ------------------------------------------------------------ 13. Linux kernel boot-time arguments, from /proc/cmdline BOOT_IMAGE=/boot/vmlinuz-6.4.0-150600.21-default root=UUID=8bcfdda5-8f30-49cc-9aa9-2e306fa29252 splash=silent mitigations=auto quiet security=apparmor video=1024x768 ------------------------------------------------------------ 14. cpupower frequency-info analyzing CPU 145: current policy: frequency should be within 1.50 GHz and 2.25 GHz. The governor "performance" may decide which speed to use within this range. boost state support: Supported: yes Active: yes ------------------------------------------------------------ 15. tuned-adm active It seems that tuned daemon is not running, preset profile is not activated. Preset profile: latency-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 SUSE Linux Enterprise Server 15 SP6 ------------------------------------------------------------ 20. Disk information SPEC is set to: /aocc520 Filesystem Type Size Used Avail Use% Mounted on /dev/nvme0n1p4 xfs 2.8T 287G 2.6T 11% / ------------------------------------------------------------ 21. /sys/devices/virtual/dmi/id Vendor: ASUSTeK COMPUTER INC. Product: RS720A-E13-RS8U Product Family: Server Serial: 123456789012 ------------------------------------------------------------ 22. dmidecode Additional information from dmidecode 3.4 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: 6x Samsung M321R4GA3PB2-CCPEC 32 GB 2 rank 6400 12x Samsung M321R4GA3PB2-CCPKC 32 GB 2 rank 6400 6x Samsung M321R4GA3PB2-CCPPC 32 GB 2 rank 6400 ------------------------------------------------------------ 23. BIOS (This section combines info from /sys/devices and dmidecode.) BIOS Vendor: American Megatrends Inc. BIOS Version: 1002 BIOS Date: 10/14/2025 BIOS Revision: 10.2 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: -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 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: -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 -mllvm -unroll-threshold=100 -fopenmp -DSPEC_OPENMP -pthread -lamdalloc -lamdlibm -fopenmp=libomp -lomp Peak Other Flags ---------------- C benchmarks: -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.2026-08-11.00.html http://www.spec.org/cpu2026/results/flags/ASUSTekPlatform-Settings-AMD-K15-V1.1.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/ASUSTekPlatform-Settings-AMD-K15-V1.1.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 2026-07-16 01:13:13-0400. Report generated on 2026-09-09 09:10:03 by CPU2026 text formatter (aa18784a). Originally published on 2026-08-11.