SPEC CPU(R)2026 Floating Point Rate Result Dell Inc. PowerEdge R7725 (AMD EPYC 9755 128-Core Processor) CPU2026 License: 6573 Test date: Feb-2026 Test sponsor: Dell Inc. Hardware availability: Nov-2024 Tested by: Dell Inc. Software availability: Jan-2026 Base Base Base Base Base Base Base Peak Peak Peak Peak Peak Peak Peak Benchmarks Copies RunTime Rate Energy MaxPwr AvgPwr ERatio Copies RunTime Rate Energy MaxPwr AvgPwr ERatio ---------------- ------- ------- ------ ------ ------ ------ ------ ------- ------- ------ ------ ------ ------ ------ 709.cactus_r 256 95.6 2300 121 1380 1270 154 * 256 95.6 2300 121 1380 1270 154 * 709.cactus_r 256 94.6 2320 133 1570 1410 140 S 256 94.6 2320 133 1570 1410 140 S 722.palm_r 256 467 724 641 1550 1370 44.8 * 256 467 724 641 1550 1370 44.8 * 722.palm_r 256 465 726 663 1570 1430 43.3 S 256 465 726 663 1570 1430 43.3 S 731.astcenc_r 256 204 1050 206 1220 1010 86.9 S 256 204 1050 206 1220 1010 86.9 S 731.astcenc_r 256 204 1050 193 1020 946 93.0 * 256 204 1050 193 1020 946 93.0 * 736.ocio_r 256 264 848 295 1340 1120 63.6 S 256 264 848 295 1340 1120 63.6 S 736.ocio_r 256 264 848 312 1460 1180 60.0 * 256 264 848 312 1460 1180 60.0 * 737.gmsh_r 256 199 592 212 1310 1070 46.5 * 256 199 592 212 1310 1070 46.5 * 737.gmsh_r 256 198 593 221 1370 1120 44.5 S 256 198 593 221 1370 1120 44.5 S 748.flightdm_r 256 167 1100 169 1050 1010 91.1 * 256 167 1100 169 1050 1010 91.1 * 748.flightdm_r 256 166 1100 168 1040 1010 91.4 S 256 166 1100 168 1040 1010 91.4 S 749.fotonik3d_r 256 1193 248 1220 1190 1020 20.8 S 256 1193 248 1220 1190 1020 20.8 S 749.fotonik3d_r 256 1205 246 1220 1180 1010 20.8 * 256 1205 246 1220 1180 1010 20.8 * 765.roms_r 256 869 464 1040 1390 1200 33.8 S 256 869 464 1040 1390 1200 33.8 S 765.roms_r 256 870 463 1040 1400 1190 33.9 * 256 870 463 1040 1400 1190 33.9 * 766.femflow_r 256 179 2090 253 1580 1410 126 S 256 179 2090 253 1580 1410 126 S 766.femflow_r 256 180 2090 273 1590 1510 117 * 256 180 2090 273 1590 1510 117 * 767.nest_r 256 227 896 285 1500 1260 59.4 * 256 227 896 285 1500 1260 59.4 * 767.nest_r 256 226 900 298 1460 1320 56.7 S 256 226 900 298 1460 1320 56.7 S 772.marian_r 256 175 2310 261 1610 1490 130 S 256 175 2310 261 1610 1490 130 S 772.marian_r 256 175 2310 248 1590 1410 137 * 256 175 2310 248 1590 1410 137 * 782.lbm_r 256 421 348 480 1250 1140 27.2 S 256 421 348 480 1250 1140 27.2 S 782.lbm_r 256 422 347 474 1230 1120 27.5 * 256 422 347 474 1230 1120 27.5 * ============================================================================================================================ 709.cactus_r 256 95.6 2300 121 1380 1270 154 * 256 95.6 2300 121 1380 1270 154 * 722.palm_r 256 467 724 641 1550 1370 44.8 * 256 467 724 641 1550 1370 44.8 * 731.astcenc_r 256 204 1050 193 1020 946 93.0 * 256 204 1050 193 1020 946 93.0 * 736.ocio_r 256 264 848 312 1460 1180 60.0 * 256 264 848 312 1460 1180 60.0 * 737.gmsh_r 256 199 592 212 1310 1070 46.5 * 256 199 592 212 1310 1070 46.5 * 748.flightdm_r 256 167 1100 169 1050 1010 91.1 * 256 167 1100 169 1050 1010 91.1 * 749.fotonik3d_r 256 1205 246 1220 1180 1010 20.8 * 256 1205 246 1220 1180 1010 20.8 * 765.roms_r 256 870 463 1040 1400 1190 33.9 * 256 870 463 1040 1400 1190 33.9 * 766.femflow_r 256 180 2090 273 1590 1510 117 * 256 180 2090 273 1590 1510 117 * 767.nest_r 256 227 896 285 1500 1260 59.4 * 256 227 896 285 1500 1260 59.4 * 772.marian_r 256 175 2310 248 1590 1410 137 * 256 175 2310 248 1590 1410 137 * 782.lbm_r 256 422 347 474 1230 1120 27.5 * 256 422 347 474 1230 1120 27.5 * SPECrate(R)2026_fp_energy_base 61.6 SPECrate(R)2026_fp_base 860 SPECrate(R)2026_fp_energy_peak 61.6 SPECrate(R)2026_fp_peak 860 HARDWARE -------- CPU Name: AMD EPYC 9755 Max MHz: 4100 Nominal: 2700 Enabled: 256 cores, 2 chips, 2 threads/core 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: 512 MB I+D on chip per chip, 32 MB shared / 8 cores Other: None Memory: 1536 GB (24 x 64 GB 2Rx4 PC5-6400B-R) Storage: 250 GB on tmpfs Cooling: Air Other: None SOFTWARE -------- OS: Ubuntu 24.04 LTS 6.8.0-87-generic Compiler: C/C++/Fortran: Version 5.1.0 of AOCC Compiler Category: Vendor Firmware: Version 1.5.3 released Oct-2025 File System: tmpfs System State: Run level 3 (multi-user) Base Pointers: 64-bit Peak Pointers: 64-bit Other: None Power Management: BIOS and OS set to balanced performance POWER ----- Max. Power (W): 1614.0 Idle Power (W): 166.58 Min. Temperature (C): 21.31 Elevation (m): 255 Line Standard: 220 V / 50 Hz / 1 phase / 3 wires Provisioning: Line-powered POWER SETTINGS -------------- Management FW: Version 1.20.80.50 of IDRAC Memory Mode: Normal POWER-RELEVANT HARDWARE ----------------------- Power Supply: 1 x 3200 W (non-redundant) Details: 3200W Titanium Power supply DPN J0KHH Backplane: 8 x EDSFF E3.S NVMe Other Storage: 1 x NVMe E3 Drive Storage Model #s: NVMe CD8P E3.S 1.92TB NICs Installed: 1 x Intel E610-XT2 @ 10 Gbps (Dell P/N FC0HK) NICs Enabled (FW/OS): 2 / 1 NICs Connected/Speed: 1 @ 10 Gb Other HW Model #s: 6 x performance fans POWER ANALYZER -------------- Power Analyzer: 192.168.0.5:8888 Hardware Vendor: Yokogawa Meters and Instruments Corporation Model: YokogawaWT310E Serial Number: T11733386 Input Connection: Default Metrology Institute: Tescom Calibration By: NIST Calibration Label: T126623 Calibration Date: 13-Aug-2025 PTDaemon(R) Version: 1.11.4 (5bcc369b; 2026-01-19) Setup Description: Connected to PSU1 Current Ranges Used: 5A, 10A Voltage Range Used: 300V TEMPERATURE METER ----------------- Temperature Meter: 192.168.0.5:8889 Hardware Vendor: Digi International Inc. Model: DigiWATCHPORT_H Serial Number: W13370940 Input Connection: USB PTDaemon Version: 1.11.4 (5bcc369b; 2026-01-19) Setup Description: 25 mm in front of SUT main airflow intake 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 250 GB ramdisk created with the cmd: "mount -t tmpfs -o size=250G tmpfs /mnt/ramdisk" Platform Notes -------------- BIOS Settings: DRAM Refresh Delay : Performance DIMM Self Healing on - Uncorrectable Memory Error : Disabled Virtualization Technology : Disabled NUMA Nodes per Socket : 4 Custom cTDP : 450 System Profile : Custom C-States : Enabled Memory Patrol Scrub : Disabled PCI ASPM L1 Link - Power Management : Enabled Sysinfo program /mnt/ramdisk/cpu2026rc2/bin/sysinfo Rev: 069f95da7e7f5d81b2ce48a82150e54f running on SLR7736-R7725 Fri Feb 6 19:40:25 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 (255.4-1ubuntu8.8) 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 6.8.0-87-generic #88-Ubuntu SMP PREEMPT_DYNAMIC Sat Oct 11 09:28:41 UTC 2025 x86_64 ------------------------------------------------------------ 2. w 19:40:25 up 6:04, 3 users, load average: 0.46, 11.22, 142.03 USER TTY FROM LOGIN@ IDLE JCPU PCPU WHAT root 192.168.0.6 19:35 6:04m 0.00s 0.11s sshd: root@notty root tty2 - 16:32 3:04m 0.17s 0.04s -bash root tty1 - 13:39 38.00s 3.45s 1.44s /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 6188453 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=7.0_T01 --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=7.0_T01 --output_format html,pdf,txt fprate runcpu --configfile amd_rate_aocc510_znver5_A1.cfg --tune base --reportable --iterations 2 --define DL-VERS=7.0_T01 --output_format html,pdf,txt --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 9755 128-Core Processor vendor_id : AuthenticAMD cpu family : 26 model : 2 stepping : 1 microcode : 0xb00215a bugs : sysret_ss_attrs spectre_v1 spectre_v2 spec_store_bypass TLB size : 192 4K pages cpu cores : 128 siblings : 256 2 physical ids (chips) 512 processors (hardware threads) physical id 0: core ids 0-127 physical id 1: core ids 0-127 physical id 0: apicids 0-255 physical id 1: apicids 256-511 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): 512 On-line CPU(s) list: 0-511 Vendor ID: AuthenticAMD BIOS Vendor ID: AMD Model name: AMD EPYC 9755 128-Core Processor BIOS Model name: AMD EPYC 9755 128-Core Processor CPU @ 2.7GHz BIOS CPU family: 107 CPU family: 26 Model: 2 Thread(s) per core: 2 Core(s) per socket: 128 Socket(s): 2 Stepping: 1 CPU(s) scaling MHz: 60% CPU max MHz: 2700.0000 CPU min MHz: 1500.0000 BogoMIPS: 5392.51 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 cat_l3 cdp_l3 hw_pstate ssbd mba perfmon_v2 ibrs ibpb stibp ibrs_enhanced vmmcall fsgsbase tsc_adjust bmi1 avx2 smep bmi2 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 avx512_vp2intersect flush_l1d debug_swap Virtualization: AMD-V L1d cache: 12 MiB (256 instances) L1i cache: 8 MiB (256 instances) L2 cache: 256 MiB (256 instances) L3 cache: 1 GiB (32 instances) NUMA node(s): 8 NUMA node0 CPU(s): 0-31,256-287 NUMA node1 CPU(s): 32-63,288-319 NUMA node2 CPU(s): 64-95,320-351 NUMA node3 CPU(s): 96-127,352-383 NUMA node4 CPU(s): 128-159,384-415 NUMA node5 CPU(s): 160-191,416-447 NUMA node6 CPU(s): 192-223,448-479 NUMA node7 CPU(s): 224-255,480-511 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 always-on; RSB filling; PBRSB-eIBRS Not affected; BHI Not affected Vulnerability Srbds: Not affected Vulnerability Tsx async abort: Not affected Vulnerability Vmscape: Not affected From lscpu --cache: NAME ONE-SIZE ALL-SIZE WAYS TYPE LEVEL SETS PHY-LINE COHERENCY-SIZE L1d 48K 12M 12 Data 1 64 1 64 L1i 32K 8M 8 Instruction 1 64 1 64 L2 1M 256M 16 Unified 2 1024 1 64 L3 32M 1G 16 Unified 3 32768 1 64 ------------------------------------------------------------ 8. numactl --hardware NOTE: a numactl 'node' might or might not correspond to a physical chip. available: 8 nodes (0-7) node 0 cpus: 0-31,256-287 node 0 size: 192729 MB node 0 free: 179109 MB node 1 cpus: 32-63,288-319 node 1 size: 193510 MB node 1 free: 192800 MB node 2 cpus: 64-95,320-351 node 2 size: 193510 MB node 2 free: 192834 MB node 3 cpus: 96-127,352-383 node 3 size: 193450 MB node 3 free: 192709 MB node 4 cpus: 128-159,384-415 node 4 size: 193510 MB node 4 free: 192797 MB node 5 cpus: 160-191,416-447 node 5 size: 193510 MB node 5 free: 192718 MB node 6 cpus: 192-223,448-479 node 6 size: 193510 MB node 6 free: 192782 MB node 7 cpus: 224-255,480-511 node 7 size: 193459 MB node 7 free: 192502 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: 1584323048 kB ------------------------------------------------------------ 10. who -r run-level 3 Feb 6 13:36 ------------------------------------------------------------ 11. Systemd service manager version: systemd 255 (255.4-1ubuntu8.8) Default Target Status multi-user running ------------------------------------------------------------ 12. Services, from systemctl list-unit-files STATE UNIT FILES enabled apparmor apport blk-availability cloud-config cloud-final cloud-init cloud-init-local console-setup cron e2scrub_reap finalrd getty@ gpu-manager grub-common grub-initrd-fallback keyboard-setup lm-sensors lvm2-monitor multipathd networkd-dispatcher open-iscsi pollinate secureboot-db setvtrgb systemd-networkd systemd-networkd-wait-online systemd-pstore systemd-resolved systemd-timesyncd thermald enabled-runtime netplan-ovs-cleanup systemd-fsck-root systemd-remount-fs disabled console-getty debug-shell iscsid 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 masked cryptdisks cryptdisks-early hwclock multipath-tools-boot sudo x11-common ------------------------------------------------------------ 13. Linux kernel boot-time arguments, from /proc/cmdline BOOT_IMAGE=/boot/vmlinuz-6.8.0-87-generic root=UUID=a7565640-059d-4a86-afc8-58cd1cadb778 ro ------------------------------------------------------------ 14. cpupower frequency-info analyzing CPU 280: current policy: frequency should be within 1.50 GHz and 2.70 GHz. The governor "schedutil" may decide which speed to use within this range. boost state support: Supported: no Active: no Boost States: 0 Total States: 3 Pstate-P0: 2700MHz ------------------------------------------------------------ 15. sysctl kernel.numa_balancing 1 kernel.randomize_va_space 0 vm.compaction_proactiveness 20 vm.dirty_background_bytes 0 vm.dirty_background_ratio 10 vm.dirty_bytes 0 vm.dirty_expire_centisecs 3000 vm.dirty_ratio 8 vm.dirty_writeback_centisecs 500 vm.dirtytime_expire_seconds 43200 vm.extfrag_threshold 500 vm.min_unmapped_ratio 1 vm.nr_hugepages 0 vm.nr_hugepages_mempolicy 0 vm.nr_overcommit_hugepages 0 vm.swappiness 1 vm.watermark_boost_factor 15000 vm.watermark_scale_factor 10 vm.zone_reclaim_mode 1 ------------------------------------------------------------ 16. /sys/kernel/mm/transparent_hugepage defrag [always] defer defer+madvise madvise never enabled [always] madvise never hpage_pmd_size 2097152 shmem_enabled always within_size advise [never] deny force ------------------------------------------------------------ 17. /sys/kernel/mm/transparent_hugepage/khugepaged alloc_sleep_millisecs 60000 defrag 1 max_ptes_none 511 max_ptes_shared 256 max_ptes_swap 64 pages_to_scan 4096 scan_sleep_millisecs 10000 ------------------------------------------------------------ 18. OS release From /etc/*-release /etc/*-version os-release Ubuntu 24.04 LTS ------------------------------------------------------------ 19. Disk information SPEC is set to: /mnt/ramdisk/cpu2026rc2 Filesystem Type Size Used Avail Use% Mounted on tmpfs tmpfs 250G 11G 240G 5% /mnt/ramdisk ------------------------------------------------------------ 20. /sys/devices/virtual/dmi/id Vendor: Dell Inc. Product: PowerEdge R7725 Product Family: PowerEdge Serial: SLR7736 ------------------------------------------------------------ 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 80AD000080AD HMCG94AHBRA277N 64 GB 2 rank 6400 ------------------------------------------------------------ 22. BIOS (This section combines info from /sys/devices and dmidecode.) BIOS Vendor: Dell Inc. BIOS Version: 1.5.3 BIOS Date: 10/29/2025 BIOS Revision: 1.5 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 PTDaemon, 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 2026-02-06 14:40:24-0500. Report generated on 2026-05-04 23:29:34 by CPU2026 text formatter (aa18784a). Originally published on 2026-05-05.