SPEC CPU(R)2026 Floating Point Speed Result Lenovo Global Technology ThinkSystem HR330A (3.00 GHz Ampere eMAG 8180) Test Sponsor: Ampere Computing, Inc. CPU2026 License: 6412 Test date: Feb-2026 Test sponsor: Ampere Computing, Inc. Hardware availability: Apr-2019 Tested by: Ampere Computing, Inc. Software availability: Aug-2025 Base Base Base Base Base Base Base Peak Peak Peak Peak Peak Peak Peak Benchmarks Threads RunTime Ratio Energy MaxPwr AvgPwr ERatio Threads RunTime Ratio Energy MaxPwr AvgPwr ERatio ---------------- ------- ------- ------ ------ ------ ------ ------ ------- ------- ------ ------ ------ ------ ------ 800.pot3d_s 32 673 1.00 126 196 187 1.00 * 32 673 1.00 126 196 187 1.00 * 800.pot3d_s 32 673 1.00 126 193 187 1.00 S 32 673 1.00 126 193 187 1.00 S 800.pot3d_s 32 672 1.00 126 195 187 1.00 S 32 672 1.00 126 195 187 1.00 S 803.sph_exa_s 32 1238 1.00 209 212 169 1.00 * 32 1153 1.07 196 215 170 1.07 S 803.sph_exa_s 32 1240 0.998 209 212 169 1.00 S 32 1159 1.07 197 215 170 1.06 S 803.sph_exa_s 32 1234 1.00 208 213 169 1.00 S 32 1157 1.07 196 215 170 1.07 * 809.cactus_s 32 1123 0.999 203 213 181 0.999 S 32 1082 1.04 202 222 187 1.00 * 809.cactus_s 32 1121 1.00 202 213 181 1.00 * 32 1081 1.04 201 222 186 1.01 S 809.cactus_s 32 1119 1.00 202 214 181 1.00 S 32 1083 1.04 202 218 186 1.00 S 811.tealeaf_s 32 557 1.00 140 299 251 1.00 * 32 557 1.00 140 299 251 1.00 * 811.tealeaf_s 32 563 0.989 144 297 256 0.968 S 32 563 0.989 144 297 256 0.968 S 811.tealeaf_s 32 557 1.00 142 299 254 0.987 S 32 557 1.00 142 299 254 0.987 S 816.nab_s 32 1126 1.00 193 183 171 1.00 * 32 1095 1.03 183 182 167 1.05 * 816.nab_s 32 1127 0.999 193 183 172 0.999 S 32 1096 1.03 183 184 167 1.05 S 816.nab_s 32 1125 1.00 193 182 171 1.00 S 32 1095 1.03 183 178 167 1.06 S 820.cloverleaf_s 32 857 1.00 166 230 194 1.00 * 32 857 1.00 166 230 194 1.00 * 820.cloverleaf_s 32 855 1.00 166 227 194 1.00 S 32 855 1.00 166 227 194 1.00 S 820.cloverleaf_s 32 857 1.00 166 230 194 1.00 S 32 857 1.00 166 230 194 1.00 S 822.palm_s 32 1229 0.999 207 221 168 1.00 S 32 1120 1.10 196 224 175 1.06 * 822.palm_s 32 1228 1.00 207 225 168 1.00 S 32 1118 1.10 196 220 175 1.06 S 822.palm_s 32 1228 1.00 207 221 169 1.00 * 32 1120 1.10 196 220 175 1.06 S 849.fotonik3d_s 32 659 1.00 123 203 186 1.00 S 32 659 1.00 120 201 183 1.03 * 849.fotonik3d_s 32 659 1.00 123 204 187 1.00 * 32 656 1.01 120 201 183 1.03 S 849.fotonik3d_s 32 656 1.01 123 204 187 1.00 S 32 659 1.00 120 201 182 1.03 S 857.namd_s 32 1451 1.00 265 220 183 1.00 S 32 1433 1.01 265 228 185 1.00 S 857.namd_s 32 1451 1.00 266 224 183 1.00 * 32 1434 1.01 265 235 185 1.00 * 857.namd_s 32 1451 1.00 266 219 183 1.00 S 32 1434 1.01 264 218 184 1.00 S 865.roms_s 32 1089 1.00 232 246 213 0.998 S 32 1077 1.01 232 260 215 0.998 * 865.roms_s 32 1090 1.00 231 249 212 1.00 * 32 1077 1.01 231 248 215 1.00 S 865.roms_s 32 1091 0.999 232 235 212 0.999 S 32 1076 1.01 231 258 215 1.00 S 867.nest_s 32 2159 1.00 386 280 179 1.00 * 32 2117 1.02 386 279 182 1.00 S 867.nest_s 32 2138 1.01 385 285 180 1.00 S 32 2119 1.02 385 267 182 1.00 S 867.nest_s 32 2164 0.998 388 268 179 0.996 S 32 2118 1.02 387 272 183 1.00 * 872.marian_s 32 1081 1.00 160 221 148 1.01 S 32 929 1.16 152 261 164 1.06 S 872.marian_s 32 1082 1.00 161 233 149 1.00 * 32 921 1.17 152 272 164 1.06 * 872.marian_s 32 1084 0.998 161 222 148 1.00 S 32 919 1.18 150 242 163 1.07 S 881.neutron_s 32 814 1.00 132 238 162 1.00 S 32 786 1.04 127 230 161 1.04 S 881.neutron_s 32 814 1.00 131 221 161 1.00 * 32 785 1.04 126 230 161 1.04 * 881.neutron_s 32 813 1.00 132 224 162 1.00 S 32 785 1.04 126 230 161 1.04 S ============================================================================================================================ 800.pot3d_s 32 673 1.00 126 196 187 1.00 * 32 673 1.00 126 196 187 1.00 * 803.sph_exa_s 32 1238 1.00 209 212 169 1.00 * 32 1157 1.07 196 215 170 1.07 * 809.cactus_s 32 1121 1.00 202 213 181 1.00 * 32 1082 1.04 202 222 187 1.00 * 811.tealeaf_s 32 557 1.00 140 299 251 1.00 * 32 557 1.00 140 299 251 1.00 * 816.nab_s 32 1126 1.00 193 183 171 1.00 * 32 1095 1.03 183 182 167 1.05 * 820.cloverleaf_s 32 857 1.00 166 230 194 1.00 * 32 857 1.00 166 230 194 1.00 * 822.palm_s 32 1228 1.00 207 221 169 1.00 * 32 1120 1.10 196 224 175 1.06 * 849.fotonik3d_s 32 659 1.00 123 204 187 1.00 * 32 659 1.00 120 201 183 1.03 * 857.namd_s 32 1451 1.00 266 224 183 1.00 * 32 1434 1.01 265 235 185 1.00 * 865.roms_s 32 1090 1.00 231 249 212 1.00 * 32 1077 1.01 232 260 215 0.998 * 867.nest_s 32 2159 1.00 386 280 179 1.00 * 32 2118 1.02 387 272 183 1.00 * 872.marian_s 32 1082 1.00 161 233 149 1.00 * 32 921 1.17 152 272 164 1.06 * 881.neutron_s 32 814 1.00 131 221 161 1.00 * 32 785 1.04 126 230 161 1.04 * SPECspeed(R)2026_fp_energy_base 1.00 SPECspeed(R)2026_fp_base 1.00 SPECspeed(R)2026_fp_energy_peak 1.02 SPECspeed(R)2026_fp_peak 1.04 HARDWARE -------- CPU Name: Ampere eMAG 8180 Max MHz: 3300 Nominal: 3000 Enabled: 32 cores, 1 chip Orderable: 1 chips Cache L1: 32 KB I + 32 KB D on chip per core L2: 4 MB I+D on chip per chip (256 KB shared / 2 cores) L3: 32 MB I+D on chip per chip Other: None Memory: 128 GB (8 x 16 GB 2Rx4 PC4-2666V-R) Storage: 1 x 480 GB SATA SSD Cooling: Air Other: None SOFTWARE -------- OS: Ubuntu 24.04.1 LTS kernel 6.8.0 (64KB pages) Compiler: C/C++/Fortran: Version 15.2.0 of GCC Compiler Category: Community Firmware: Version 1.12 released Nov-2019 File System: ext4 System State: Run level 5 (multi-user) Base Pointers: 64-bit Peak Pointers: 64-bit Other: jemalloc v5.3+, commit hash 1972241 Power Management: OS CPU governor set to "performance" POWER ----- Max. Power (W): 299.15 Idle Power (W): 76.7 Min. Temperature (C): 20.81 Elevation (m): 60 Line Standard: 120 V / 60 Hz / 1 phase / 2 wire Provisioning: Line powered POWER SETTINGS -------------- Management FW: Version 11.05.111 of Falcon BMC Memory Mode: Normal POWER-RELEVANT HARDWARE ----------------------- Power Supply: 1 x 550 W (non-redundant) Details: Lenovo 03LD785 550 Watt High Efficiency Platinum AC Power Supply Backplane: N/A Other Storage: N/A Storage Model #s: 1 x Lenovo 01PE965 (480GB SATA SSD) connected to on-board HBA NICs Installed: 1 x Lenovo 01PE857 @ 10 GbE (2 ports ethernet) NICs Enabled (FW/OS): 2 / 1 NICs Connected/Speed: 1 @ 1 Gbps Other HW Model #s: -- POWER ANALYZER -------------- Power Analyzer: cpu-reference-ptd:8000 Hardware Vendor: Yokogawa Model: WT-310 Serial Number: T11733285 Input Connection: Serial over USB Metrology Institute: NIST Calibration By: Yokogawa USA Calibration Label: T126622 Calibration Date: 13-Aug-2025 PTDaemon(R) Version: 1.11.3 (0c074d7d; 2025-10-15) Setup Description: Directly connected Current Ranges Used: 5A Voltage Range Used: 150V TEMPERATURE METER ----------------- Temperature Meter: cpu-reference-ptd:9000 Hardware Vendor: PCSensor Model: USB9097+DS18B20 Serial Number: -- Input Connection: USB PTDaemon Version: 1.11.3 (0c074d7d; 2025-10-15) Setup Description: In front of SUT front panel primary air inlet Environment Variables Notes --------------------------- Environment variables set by runcpu before the start of the run: LD_LIBRARY_PATH = "/usr/lib64/:/usr/lib/:/lib64:/home/mjm/jemalloc/lib" OMP_STACKSIZE = "120M" General Notes ------------- jemalloc is a general purpose malloc(3) implementation that emphasizes fragmentation avoidance and scalable concurrency support. sources available from https://github.com/jemalloc/jemalloc/tree/1972241 and built via "./configure --with-lg-quantum=3" which used system gcc-14 -O3 This benchmark result is intended to provide perspective on past power and/or performance using the historical hardware and/or software described on this result page. The system as described on this result page was formerly generally available. At the time of this publication, it may not be shipping, and/or may not be supported, and/or may fail to meet other tests of General Availability described in the SPEC OSG Policy document, http://www.spec.org/osg/policy.html This measured result may not be representative of the result that would be measured were this benchmark run with hardware and software available as of the publication date. Platform Notes -------------- Sysinfo program /home/mjm/RC2/bin/sysinfo Rev: 779ab21020787073335a329f3a45e2cd running on emag Sat Feb 21 05:13:15 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. sysctl 15. /sys/kernel/mm/transparent_hugepage 16. /sys/kernel/mm/transparent_hugepage/khugepaged 17. OS release 18. Disk information 19. /sys/devices/virtual/dmi/id 20. dmidecode 21. BIOS ------------------------------------------------------------ ------------------------------------------------------------ 1. uname -srvm Linux 6.8.0 #1 SMP PREEMPT_DYNAMIC Fri Feb 28 00:25:30 UTC 2025 aarch64 ------------------------------------------------------------ 2. w 05:13:15 up 64 days, 5:38, 2 users, load average: 1.45, 14.34, 24.62 USER TTY FROM LOGIN@ IDLE JCPU PCPU WHAT mjm 10.13.114.186 28Jan26 23:10m 0.00s 0.02s sshd: mjm [priv] ------------------------------------------------------------ 3. Username From environment variable $USER: mjm ------------------------------------------------------------ 4. ulimit -a time(seconds) unlimited file(blocks) unlimited data(kbytes) unlimited stack(kbytes) unlimited coredump(blocks) 0 memory(kbytes) unlimited locked memory(kbytes) 16691648 process 128681 nofiles 1024 vmemory(kbytes) unlimited locks unlimited rtprio 0 ------------------------------------------------------------ 5. sysinfo process ancestry /usr/lib/systemd/systemd --system --deserialize=66 SCREEN -bin/tcsh runcpu --flagsurl=$SPEC/config/flags/gcc.xml -c emag-golden --reportable -n 3 --tune=base,peak --power fpspeed runcpu --flagsurl $SPEC/config/flags/gcc.xml --configfile emag-golden --reportable --iterations 3 --tune base,peak --power --runmode speed --tune base:peak --size refspeed fpspeed --nopreenv --note-preenv --logfile $SPEC/tmp/CPU2026.067/templogs/preenv.fpspeed.067.0.log --lognum 067.0 --from_runcpu 2 specperl $SPEC/bin/sysinfo -f $SPEC = /home/mjm/RC2 ------------------------------------------------------------ 6. /proc/cpuinfo CPU implementer : 0x50 CPU architecture: 8 CPU variant : 0x3 CPU part : 0x000 CPU revision : 2 Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 cpuid ------------------------------------------------------------ 7. lscpu From lscpu from util-linux 2.39.3: Architecture: aarch64 CPU op-mode(s): 32-bit, 64-bit Byte Order: Little Endian CPU(s): 32 On-line CPU(s) list: 0-31 Vendor ID: APM Model name: - Model: 2 Thread(s) per core: 1 Core(s) per socket: 32 Socket(s): 1 Stepping: 0x3 Frequency boost: disabled CPU(s) scaling MHz: 100% CPU max MHz: 2911.7639 CPU min MHz: 363.9700 BogoMIPS: 80.00 Flags: fp asimd evtstrm aes pmull sha1 sha2 crc32 cpuid L1d cache: 1 MiB (32 instances) L1i cache: 1 MiB (32 instances) L2 cache: 4 MiB (16 instances) NUMA node(s): 1 NUMA node0 CPU(s): 0-31 Vulnerability Gather data sampling: Not affected Vulnerability Itlb multihit: Not affected Vulnerability L1tf: Not affected Vulnerability Mds: Not affected Vulnerability Meltdown: Mitigation; PTI Vulnerability Mmio stale data: Not affected Vulnerability Retbleed: Not affected Vulnerability Spec rstack overflow: Not affected Vulnerability Spec store bypass: Vulnerable Vulnerability Spectre v1: Mitigation; __user pointer sanitization Vulnerability Spectre v2: Vulnerable 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 1M 8 Data 1 L1i 32K 1M 8 Instruction 1 L2 256K 4M 32 Unified 2 ------------------------------------------------------------ 8. numactl --hardware NOTE: a numactl 'node' might or might not correspond to a physical chip. available: 1 nodes (0) node 0 cpus: 0-31 node 0 size: 130403 MB node 0 free: 104553 MB node distances: node 0 0: 10 ------------------------------------------------------------ 9. /proc/meminfo MemTotal: 133533376 kB ------------------------------------------------------------ 10. who -r run-level 5 Dec 18 23:35 ------------------------------------------------------------ 11. Systemd service manager version: systemd 255 (255.4-1ubuntu8.8) 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@ grub-common grub-initrd-fallback keyboard-setup lvm2-monitor multipathd networkd-dispatcher open-iscsi open-vm-tools pollinate power-profiles-daemon rsyslog secureboot-db setvtrgb snapd sysstat systemd-networkd systemd-networkd-wait-online systemd-pstore systemd-resolved systemd-timesyncd ua-reboot-cmds ubuntu-advantage udisks2 ufw unattended-upgrades vgauth enabled-runtime netplan-ovs-cleanup systemd-fsck-root systemd-remount-fs disabled console-getty debug-shell ipmievd iscsid nftables rsync 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 generated openipmi perlbal indirect serial-getty@ 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 root=UUID=16268541-06d0-4374-97ca-2d512d4db26f ro cma=1024M iommu.passthrough=1 ------------------------------------------------------------ 14. sysctl kernel.numa_balancing 0 kernel.randomize_va_space 2 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 20 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 60 vm.watermark_boost_factor 15000 vm.watermark_scale_factor 10 vm.zone_reclaim_mode 0 ------------------------------------------------------------ 15. /sys/kernel/mm/transparent_hugepage defrag always defer defer+madvise [madvise] never enabled always [madvise] never hpage_pmd_size 536870912 shmem_enabled always within_size advise [never] deny force ------------------------------------------------------------ 16. /sys/kernel/mm/transparent_hugepage/khugepaged alloc_sleep_millisecs 60000 defrag 1 max_ptes_none 8191 max_ptes_shared 4096 max_ptes_swap 1024 pages_to_scan 65536 scan_sleep_millisecs 10000 ------------------------------------------------------------ 17. OS release From /etc/*-release /etc/*-version os-release Ubuntu 24.04.1 LTS ------------------------------------------------------------ 18. Disk information SPEC is set to: /home/mjm/RC2 Filesystem Type Size Used Avail Use% Mounted on /dev/sda2 ext4 439G 184G 232G 45% / ------------------------------------------------------------ 19. /sys/devices/virtual/dmi/id Vendor: Lenovo Product: HR330A 7X33CTO1WW Product Family: Lenovo ThinkSystem HR330A/HR350A ------------------------------------------------------------ 20. 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: 8x Samsung M393A2K43CB2-CTD 16 GB 2 rank 2667 ------------------------------------------------------------ 21. BIOS (This section combines info from /sys/devices and dmidecode.) BIOS Vendor: LENOVO BIOS Version: HVE104N-1.12 BIOS Date: 11/29/2019 BIOS Revision: 1.12 Firmware Revision: 1.7 Power Settings Notes -------------------- OS CPU governor was set using the command: echo performance | tee /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor Compiler Version Notes ---------------------- ============================================================================== C | 811.tealeaf_s(base, peak) 816.nab_s(base, peak) 881.neutron_s(base, | peak) ------------------------------------------------------------------------------ gcc (GCC) 15.2.0 Copyright (C) 2025 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. ------------------------------------------------------------------------------ ============================================================================== C++ | 803.sph_exa_s(base, peak) 857.namd_s(base, peak) 867.nest_s(base, | peak) 872.marian_s(base, peak) ------------------------------------------------------------------------------ g++ (GCC) 15.2.0 Copyright (C) 2025 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. ------------------------------------------------------------------------------ ============================================================================== C++, C | 809.cactus_s(base pass 0, peak pass 1, peak pass 2) ------------------------------------------------------------------------------ g++ (GCC) 15.2.0 Copyright (C) 2025 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. ------------------------------------------------------------------------------ ============================================================================== C++, C | 809.cactus_s(base pass 0, peak pass 1, peak pass 2) ------------------------------------------------------------------------------ gcc (GCC) 15.2.0 Copyright (C) 2025 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. ------------------------------------------------------------------------------ ============================================================================== C++, C | 809.cactus_s(base pass 0, peak pass 1, peak pass 2) ------------------------------------------------------------------------------ g++ (GCC) 15.2.0 Copyright (C) 2025 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. ------------------------------------------------------------------------------ ============================================================================== C++, C | 809.cactus_s(base pass 0, peak pass 1, peak pass 2) ------------------------------------------------------------------------------ gcc (GCC) 15.2.0 Copyright (C) 2025 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. ------------------------------------------------------------------------------ ============================================================================== 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) ------------------------------------------------------------------------------ GNU Fortran (GCC) 15.2.0 Copyright (C) 2025 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. ------------------------------------------------------------------------------ Base Compiler Invocation ------------------------ C benchmarks: gcc C++ benchmarks: g++ Fortran benchmarks: gfortran Benchmarks using both C and C++: g++ gcc Base Portability Flags ---------------------- 800.pot3d_s: -DSPEC_SUPPRESS_LOCAL_AND_REDUCE -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: -mabi=lp64 -std=c18 -g -O3 -ffast-math -mcpu=native -flto=16 -fopenmp -DSPEC_OPENMP -L/home/mjm/jemalloc/lib -ljemalloc C++ benchmarks: 803.sph_exa_s: -mabi=lp64 -std=c++17 -g -O3 -ffast-math -mcpu=native -flto=16 -fopenmp -DSPEC_OPENMP -L/home/mjm/jemalloc/lib -ljemalloc 857.namd_s: Same as 803.sph_exa_s 867.nest_s: Same as 803.sph_exa_s 872.marian_s: -mabi=lp64 -std=c++17 -g -O3 -ffast-math -mcpu=native -flto=16 -pthread -L/home/mjm/jemalloc/lib -ljemalloc Fortran benchmarks: 800.pot3d_s: -mabi=lp64 -std=f2018 -g -O3 -ffast-math -mcpu=native -flto=16 -fallow-argument-mismatch -ftree-parallelize-loops=32 -L/home/mjm/jemalloc/lib -ljemalloc 820.cloverleaf_s: -mabi=lp64 -std=f2018 -g -O3 -ffast-math -mcpu=native -flto=16 -fallow-argument-mismatch -DSPEC_OPENMP -fopenmp -L/home/mjm/jemalloc/lib -ljemalloc 822.palm_s: Same as 820.cloverleaf_s 849.fotonik3d_s: Same as 820.cloverleaf_s 865.roms_s: Same as 820.cloverleaf_s Benchmarks using both C and C++: -mabi=lp64 -std=c++17 -std=c18 -g -O3 -ffast-math -mcpu=native -flto=16 -fopenmp -DSPEC_OPENMP -L/home/mjm/jemalloc/lib -ljemalloc Peak Compiler Invocation ------------------------ C benchmarks: gcc C++ benchmarks: g++ Fortran benchmarks: gfortran Benchmarks using both C and C++: g++ gcc Peak Portability Flags ---------------------- Same as Base Portability Flags Peak Optimization Flags ----------------------- C benchmarks: 811.tealeaf_s: basepeak = yes 816.nab_s: -mabi=lp64 -std=c18 -fprofile-generate -fprofile-use -g -Ofast -mcpu=native -flto=16 -fopenmp -DSPEC_OPENMP -L/home/mjm/jemalloc/lib -ljemalloc 881.neutron_s: Same as 816.nab_s C++ benchmarks: 803.sph_exa_s: -mabi=lp64 -std=c++17 -fprofile-generate -fprofile-use -g -Ofast -mcpu=native -flto=16 -fopenmp -DSPEC_OPENMP -L/home/mjm/jemalloc/lib -ljemalloc 857.namd_s: Same as 803.sph_exa_s 867.nest_s: Same as 803.sph_exa_s 872.marian_s: -mabi=lp64 -std=c++17 -fprofile-generate -fprofile-use -g -Ofast -mcpu=native -flto=16 -pthread -L/home/mjm/jemalloc/lib -ljemalloc Fortran benchmarks: 800.pot3d_s: basepeak = yes 820.cloverleaf_s: basepeak = yes 822.palm_s: -mabi=lp64 -std=f2018 -fprofile-generate -fprofile-use -g -Ofast -mcpu=native -flto=16 -fallow-argument-mismatch -DSPEC_OPENMP -fopenmp -L/home/mjm/jemalloc/lib -ljemalloc 849.fotonik3d_s: Same as 822.palm_s 865.roms_s: Same as 822.palm_s Benchmarks using both C and C++: -mabi=lp64 -std=c++17 -std=c18 -fprofile-generate -fprofile-use -g -Ofast -mcpu=native -flto=16 -fopenmp -DSPEC_OPENMP -L/home/mjm/jemalloc/lib -ljemalloc The flags file that was used to format this result can be browsed at http://www.spec.org/cpu2026/results/flags/gcc-rev-A2.html You can also download the XML flags source by saving the following link: http://www.spec.org/cpu2026/results/flags/gcc-rev-A2.xml PTDaemon, 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 v0.903.0 on 2026-02-21 00:13:13-0500. Report generated on 2026-05-04 23:26:13 by CPU2026 text formatter (aa18784a). Originally published on 2026-05-05.