SPEC CPU(R)2026 Floating Point Rate Result Dell Inc. PowerEdge R7625 (AMD EPYC 9654 96-Core Processor) CPU2026 License: 6573 Test date: Feb-2026 Test sponsor: Dell Inc. Hardware availability: Nov-2022 Tested by: Dell Inc. Software availability: Jan-2026 Base Base Base Peak Peak Peak Benchmarks Copies Run Time Rate Copies Run Time Rate ---------------- ------- --------- --------- ------- --------- --------- 709.cactus_r 192 125 1320 * 192 125 1320 * 709.cactus_r 192 124 1330 S 192 124 1330 S 722.palm_r 192 490 517 * 192 490 517 * 722.palm_r 192 486 522 S 192 486 522 S 731.astcenc_r 192 175 921 * 192 175 921 * 731.astcenc_r 192 175 922 S 192 175 922 S 736.ocio_r 192 251 669 S 192 251 669 S 736.ocio_r 192 252 668 * 192 252 668 * 737.gmsh_r 192 174 507 S 192 174 507 S 737.gmsh_r 192 174 507 * 192 174 507 * 748.flightdm_r 192 159 864 S 192 159 864 S 748.flightdm_r 192 159 864 * 192 159 864 * 749.fotonik3d_r 192 1075 206 * 192 1075 206 * 749.fotonik3d_r 192 1074 207 S 192 1074 207 S 765.roms_r 192 1039 291 S 192 1039 291 S 765.roms_r 192 1040 291 * 192 1040 291 * 766.femflow_r 192 204 1380 * 192 204 1380 * 766.femflow_r 192 204 1380 S 192 204 1380 S 767.nest_r 192 227 670 S 192 227 670 S 767.nest_r 192 228 669 * 192 228 669 * 772.marian_r 192 220 1380 S 192 220 1380 S 772.marian_r 192 220 1380 * 192 220 1380 * 782.lbm_r 192 418 263 * 192 418 263 * 782.lbm_r 192 416 265 S 192 416 265 S ================================================================================== 709.cactus_r 192 125 1320 * 192 125 1320 * 722.palm_r 192 490 517 * 192 490 517 * 731.astcenc_r 192 175 921 * 192 175 921 * 736.ocio_r 192 252 668 * 192 252 668 * 737.gmsh_r 192 174 507 * 192 174 507 * 748.flightdm_r 192 159 864 * 192 159 864 * 749.fotonik3d_r 192 1075 206 * 192 1075 206 * 765.roms_r 192 1040 291 * 192 1040 291 * 766.femflow_r 192 204 1380 * 192 204 1380 * 767.nest_r 192 228 669 * 192 228 669 * 772.marian_r 192 220 1380 * 192 220 1380 * 782.lbm_r 192 418 263 * 192 418 263 * SPECrate(R)2026_fp_base 627 SPECrate(R)2026_fp_peak 627 HARDWARE -------- CPU Name: AMD EPYC 9654 Max MHz: 3700 Nominal: 2400 Enabled: 192 cores, 2 chips Orderable: 1,2 chips Cache L1: 32 KB I + 32 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 / 8 cores Other: None Memory: 2304 GB (24 x 96 GB 2Rx4 PC5-5600B-R, running at 4800) Storage: 120 GB on tmpfs Cooling: Air Other: None SOFTWARE -------- OS: Ubuntu 24.04 LTS 6.8.0-44-generic Compiler: C/C++/Fortran: Version 5.1.0 of AOCC Compiler Category: Vendor Firmware: Version 1.15.3 released Oct-2025 File System: tmpfs System State: Run level 5 (graphical multi-user) Base Pointers: 64-bit Peak Pointers: 64-bit Other: None Power Management: BIOS 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 = "/mnt/ramdisk/cpu2026rc2/amd_rate_aocc510_znver5_A_lib/lib:/mnt/ramdisk/ cpu2026rc2/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 Benchmark run from a 120 GB ramdisk created with the cmd: "mount -t tmpfs -o size=120G tmpfs /mnt/ramdisk" Platform Notes -------------- BIOS Settings: Logical Processor : Disabled Virtualization Technology : Disabled NUMA Nodes Per Socket : 4 System Profile : Custom C-States : Disabled Memory Patrol Scrub : Disabled PCI ASPM L1 Link Power Management : Disabled Determinism Slider : Power Determinism Dram Refresh Delay : Performance DIMM Self Healing - on Uncorrectable Memory Error : Disabled Sysinfo program /mnt/ramdisk/cpu2026rc2/bin/sysinfo Rev: 069f95da7e7f5d81b2ce48a82150e54f running on H27JNZ3-R7625 Sun Feb 8 02:15:02 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) 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 6.8.0-44-generic #44-Ubuntu SMP PREEMPT_DYNAMIC Tue Aug 13 13:35:26 UTC 2024 x86_64 ------------------------------------------------------------ 2. w 02:15:02 up 11 min, 1 user, load average: 0.44, 0.56, 0.66 USER TTY FROM LOGIN@ IDLE JCPU PCPU WHAT root tty1 - 02:13 54.00s 4.51s 2.34s /bin/bash ./amd_rate_aocc510_znver5_A1.sh ------------------------------------------------------------ 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 9286958 nofiles 1024 vmemory(kbytes) unlimited locks unlimited rtprio 0 ------------------------------------------------------------ 5. sysinfo process ancestry /sbin/init /bin/login -p -- -bash /bin/bash /home/DellFiles/bin/DELL_rate.sh /bin/bash /home/DellFiles/bin/dell-run-main.sh rate /bin/bash /home/DellFiles/bin/dell-run-main.sh rate /bin/bash /home/DellFiles/bin/AMD/dell-run-speccpu.sh rate --define DL-VERS=6.4_T17 --output_format html,pdf,txt 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 2 --define DL-VERS=6.4_T17 --output_format html,pdf,txt fprate runcpu --configfile amd_rate_aocc510_znver5_A1.cfg --tune base --reportable --iterations 2 --define DL-VERS=6.4_T17 --output_format html,pdf,txt --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 = /mnt/ramdisk/cpu2026rc2 ------------------------------------------------------------ 6. /proc/cpuinfo model name : AMD EPYC 9654 96-Core Processor vendor_id : AuthenticAMD cpu family : 25 model : 17 stepping : 1 microcode : 0xa101158 bugs : sysret_ss_attrs spectre_v1 spectre_v2 spec_store_bypass srso TLB size : 3584 4K pages cpu cores : 96 siblings : 96 2 physical ids (chips) 192 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 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 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 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 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): 192 On-line CPU(s) list: 0-191 Vendor ID: AuthenticAMD BIOS Vendor ID: AMD Model name: AMD EPYC 9654 96-Core Processor BIOS Model name: AMD EPYC 9654 96-Core Processor CPU @ 2.4GHz BIOS CPU family: 107 CPU family: 25 Model: 17 Thread(s) per core: 1 Core(s) per socket: 96 Socket(s): 2 Stepping: 1 Frequency boost: enabled CPU(s) scaling MHz: 42% CPU max MHz: 3707.8120 CPU min MHz: 1500.0000 BogoMIPS: 4799.98 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 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 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 overflow_recov succor smca fsrm flush_l1d debug_swap L1d cache: 6 MiB (192 instances) L1i cache: 6 MiB (192 instances) L2 cache: 192 MiB (192 instances) L3 cache: 768 MiB (24 instances) NUMA node(s): 8 NUMA node0 CPU(s): 0-23 NUMA node1 CPU(s): 24-47 NUMA node2 CPU(s): 48-71 NUMA node3 CPU(s): 72-95 NUMA node4 CPU(s): 96-119 NUMA node5 CPU(s): 120-143 NUMA node6 CPU(s): 144-167 NUMA node7 CPU(s): 168-191 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; Safe RET 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 32K 6M 8 Data 1 64 1 64 L1i 32K 6M 8 Instruction 1 64 1 64 L2 1M 192M 8 Unified 2 2048 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: 8 nodes (0-7) node 0 cpus: 0-23 node 0 size: 289838 MB node 0 free: 289335 MB node 1 cpus: 24-47 node 1 size: 290294 MB node 1 free: 289564 MB node 2 cpus: 48-71 node 2 size: 290250 MB node 2 free: 274695 MB node 3 cpus: 72-95 node 3 size: 290278 MB node 3 free: 289894 MB node 4 cpus: 96-119 node 4 size: 290294 MB node 4 free: 289853 MB node 5 cpus: 120-143 node 5 size: 290294 MB node 5 free: 289903 MB node 6 cpus: 144-167 node 6 size: 290294 MB node 6 free: 289744 MB node 7 cpus: 168-191 node 7 size: 290267 MB node 7 free: 289851 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: 2377534052 kB ------------------------------------------------------------ 10. who -r run-level 5 Feb 8 02:03 ------------------------------------------------------------ 11. Systemd service manager version: systemd 255 (255.4-1ubuntu8) 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 lm-sensors lvm2-monitor multipathd networkd-dispatcher open-iscsi open-vm-tools pollinate rsyslog secureboot-db setvtrgb sysstat systemd-networkd systemd-networkd-wait-online systemd-pstore systemd-resolved systemd-timesyncd thermald ua-reboot-cmds ubuntu-advantage udisks2 ufw 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-6.8.0-44-generic root=UUID=8458ae54-58cc-4621-9289-b1d743fde503 ro ------------------------------------------------------------ 14. cpupower frequency-info analyzing CPU 148: current policy: frequency should be within 1.50 GHz and 2.40 GHz. The governor "schedutil" may decide which speed to use within this range. boost state support: Supported: yes Active: yes Boost States: 0 Total States: 3 Pstate-P0: 2400MHz ------------------------------------------------------------ 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 LTS ------------------------------------------------------------ 19. Disk information SPEC is set to: /mnt/ramdisk/cpu2026rc2 Filesystem Type Size Used Avail Use% Mounted on tmpfs tmpfs 120G 11G 110G 9% /mnt/ramdisk ------------------------------------------------------------ 20. /sys/devices/virtual/dmi/id Vendor: Dell Inc. Product: PowerEdge R7625 Product Family: PowerEdge Serial: H27JNZ3 ------------------------------------------------------------ 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 802C0000802C MTC40F204WS1RC56BB1 96 GB 2 rank 5600, configured at 4800 ------------------------------------------------------------ 22. BIOS (This section combines info from /sys/devices and dmidecode.) BIOS Vendor: Dell Inc. BIOS Version: 1.15.3 BIOS Date: 10/29/2025 BIOS Revision: 1.15 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/Dell-Platform-Flags-PowerEdge-AMD-EPYC-v1.8.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/Dell-Platform-Flags-PowerEdge-AMD-EPYC-v1.8.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 2026-02-07 21:15:01-0500. Report generated on 2026-05-11 16:38:02 by CPU2026 text formatter (aa18784a). Originally published on 2026-05-05.