SPEC CPU®2017 Floating Point Speed Result

Copyright 2017-2024 Standard Performance Evaluation Corporation

ASRock Rack Inc.

1U4LW-B650/2L2T RPSU
AMD EPYC 4464P

SPECspeed®2017_fp_base = 85.10

SPECspeed®2017_fp_peak = 84.40

CPU2017 License: 5416 Test Date: Apr-2024
Test Sponsor: ASRock Rack Inc. Hardware Availability: Jun-2023
Tested by: ASRock Rack Inc. Software Availability: Apr-2024

Benchmark result graphs are available in the PDF report.

Hardware
CPU Name: AMD EPYC 4464P
  Max MHz: 5600
  Nominal: 4700
Enabled: 12 cores, 1 chip, 2 threads/core
Orderable: 1 chip
Cache L1: 32 KB I + 32 KB D on chip per core
  L2: 1 MB I+D on chip per core
  L3: 64 MB I+D on chip per chip, 32 MB shared / 6 cores
  Other: None
Memory: 64 GB (2 x 32 GB 2Rx8 PC5-5200B-R)


Storage: 1 x 960 GB NVMe M.2
Other: CPU Cooling: Air
Software
OS: Ubuntu 22.04.4 LTS
kernel version
5.15.0-102-generic
Compiler: C/C++/Fortran: Version 4.0.0 of AOCC
Parallel: Yes
Firmware: BIOS version 10.14 released Feb-2024
File System: ext4
System State: Run level 5 (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.

Results Table

Benchmark Base Peak
Threads Seconds Ratio Seconds Ratio Seconds Ratio Threads Seconds Ratio Seconds Ratio Seconds Ratio
SPECspeed®2017_fp_base 85.10
SPECspeed®2017_fp_peak 84.40
Results appear in the order in which they were run. Bold underlined text indicates a median measurement.
603.bwaves_s 12 4250 1390 4250 1390 12 4250 1390 4250 1390
607.cactuBSSN_s 12 1360 1220 1350 1240 24 1350 1240 1350 1230
619.lbm_s 12 1240 42.3 1230 42.5 12 1250 42.0 1220 42.9
621.wrf_s 12 83.2 1590 82.9 1600 12 84.2 1570 84.4 1570
627.cam4_s 12 1440 61.6 1440 61.6 24 1570 56.6 1570 56.5
628.pop2_s 12 1600 74.3 1600 74.2 12 1600 74.2 1600 74.3
638.imagick_s 12 1220 1180 1220 1180 24 1100 1320 1100 1310
644.nab_s 12 90.7 1930 90.4 1930 24 78.1 2240 78.2 2230
649.fotonik3d_s 12 2970 30.7 2970 30.7 12 2970 30.7 2970 30.7
654.roms_s 12 2860 55.0 2860 55.0 24 3640 43.2 3640 43.3

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 <etc>

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 always enable THP for peak runs of:
603.bwaves_s, 607.cactuBSSN_s, 619.lbm_s, 627.cam4_s, 628.pop2_s, 638.imagick_s, 644.nab_s, 649.fotonik3d_s:
'echo madvise > /sys/kernel/mm/transparent_hugepage/enabled; echo always > /sys/kernel/mm/transparent_hugepage/defrag'
run as root.
To disable THP for peak runs of 621.wrf_s:
'echo never > /sys/kernel/mm/transparent_hugepage/enabled; echo always > /sys/kernel/mm/transparent_hugepage/defrag'
run as root.
To enable THP only on request for peak runs of 654.roms_s:
'echo madvise > /sys/kernel/mm/transparent_hugepage/enabled; echo madvise > /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 = "0-23"
LD_LIBRARY_PATH = "/home/asrr/A1/amd_speed_aocc400_znver4_A_lib/lib:"
LIBOMP_NUM_HIDDEN_HELPER_THREADS = "0"
MALLOC_CONF = "oversize_threshold:0,retain:true"
OMP_DYNAMIC = "false"
OMP_SCHEDULE = "static"
OMP_STACKSIZE = "128M"
OMP_THREAD_LIMIT = "24"

Environment variables set by runcpu during the 603.bwaves_s peak run:
GOMP_CPU_AFFINITY = "0-11"

Environment variables set by runcpu during the 607.cactuBSSN_s peak run:
GOMP_CPU_AFFINITY = "0-23"

Environment variables set by runcpu during the 619.lbm_s peak run:
GOMP_CPU_AFFINITY = "0-11"

Environment variables set by runcpu during the 621.wrf_s peak run:
GOMP_CPU_AFFINITY = "0-11"

Environment variables set by runcpu during the 627.cam4_s peak run:
GOMP_CPU_AFFINITY = "0-23"

Environment variables set by runcpu during the 628.pop2_s peak run:
GOMP_CPU_AFFINITY = "0-11"

Environment variables set by runcpu during the 638.imagick_s peak run:
GOMP_CPU_AFFINITY = "0-23"

Environment variables set by runcpu during the 644.nab_s peak run:
GOMP_CPU_AFFINITY = "0-23"

Environment variables set by runcpu during the 649.fotonik3d_s peak run:
GOMP_CPU_AFFINITY = "0-11"
PGHPF_ZMEM = "yes"

Environment variables set by runcpu during the 654.roms_s peak run:
GOMP_CPU_AFFINITY = "0 12 1 13 2 14 3 15 4 16 5 17 6 18 7 19 8 20 9 21 10 22 11 23"

General Notes

Binaries were compiled on a system with 2x AMD EPYC 9174F CPU + 1.5TiB Memory using RHEL 8.6

NA: The test sponsor attests, as of date of publication, that CVE-2017-5754 (Meltdown)
is mitigated in the system as tested and documented.
Yes: The test sponsor attests, as of date of publication, that CVE-2017-5753 (Spectre variant 1)
is mitigated in the system as tested and documented.
Yes: The test sponsor attests, as of date of publication, that CVE-2017-5715 (Spectre variant 2)
is mitigated in the system as tested and documented.

Platform Notes

BIOS settings :
  Precision Boost Overdrive : Enabled

 Sysinfo program /home/asrr/A1/bin/sysinfo
 Rev: r6732 of 2022-11-07 fe91c89b7ed5c36ae2c92cc097bec197
 running on asrr Thu Apr 18 12:44:39 2024

 SUT (System Under Test) info as seen by some common utilities.

 ------------------------------------------------------------
 Table of contents
 ------------------------------------------------------------
  1. uname -a
  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 249 (249.11-0ubuntu3.12)
 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 -a
   Linux asrr 5.15.0-102-generic #112-Ubuntu SMP Tue Mar 5 16:50:32 UTC 2024 x86_64 x86_64 x86_64 GNU/Linux

 ------------------------------------------------------------
 2. w
    12:44:39 up  9:38,  2 users,  load average: 7.08, 5.76, 3.53
   USER     TTY      FROM             LOGIN@   IDLE   JCPU   PCPU WHAT
   asrr     tty1     -                03:06    9:37m  2.75s  0.02s -bash
   asrr     pts/0    -                03:07    9:37m  0.78s  2.71s sudo ./asrr_run.sh

 ------------------------------------------------------------
 3. Username
   From environment variable $USER:  root
   From the command 'logname':       asrr

 ------------------------------------------------------------
 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              253569
   nofiles              1024
   vmemory(kbytes)      unlimited
   locks                unlimited
   rtprio               0

 ------------------------------------------------------------
 5. sysinfo process ancestry
  /sbin/init
  /bin/login -p --
  -bash
  sudo ./asrr_run.sh
  sudo ./asrr_run.sh
  sh ./asrr_run.sh
  python3 ./run_amd_speed_aocc400_znver4_A1.py
  /bin/bash ./amd_speed_aocc400_znver4_A1.sh
  runcpu --config amd_speed_aocc400_znver4_A1.cfg --tune all --reportable --iterations 1 fpspeed
  runcpu --configfile amd_speed_aocc400_znver4_A1.cfg --tune all --reportable --iterations 1 --nopower
    --runmode speed --tune base:peak --size test:train:refspeed fpspeed --nopreenv --note-preenv --logfile
    $SPEC/tmp/CPU2017.002/templogs/preenv.fpspeed.002.0.log --lognum 002.0 --from_runcpu 2
  specperl $SPEC/bin/sysinfo
 $SPEC = /home/asrr/A1

 ------------------------------------------------------------
 6. /proc/cpuinfo
     model name      : AMD EPYC 4464P 12-Core Processor
     vendor_id       : AuthenticAMD
     cpu family      : 25
     model           : 97
     stepping        : 2
     microcode       : 0xa601206
     bugs            : sysret_ss_attrs spectre_v1 spectre_v2 spec_store_bypass srso
     TLB size        : 3584 4K pages
     cpu cores       : 12
     siblings        : 24
     1 physical ids (chips)
     24 processors (hardware threads)
     physical id 0: core ids 0-5,8-13
     physical id 0: apicids 0-11,16-27
   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 2.37.2:
   Architecture:                       x86_64
   CPU op-mode(s):                     32-bit, 64-bit
   Address sizes:                      48 bits physical, 48 bits virtual
   Byte Order:                         Little Endian
   CPU(s):                             24
   On-line CPU(s) list:                0-23
   Vendor ID:                          AuthenticAMD
   Model name:                         AMD EPYC 4464P 12-Core Processor
   CPU family:                         25
   Model:                              97
   Thread(s) per core:                 2
   Core(s) per socket:                 12
   Socket(s):                          1
   Stepping:                           2
   Frequency boost:                    enabled
   CPU max MHz:                        5481.3472
   CPU min MHz:                        3000.0000
   BogoMIPS:                           7399.72
   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 nopl nonstop_tsc cpuid extd_apicid aperfmperf
                                       rapl pni pclmulqdq monitor ssse3 fma cx16 sse4_1 sse4_2 movbe popcnt
                                       aes xsave avx f16c rdrand lahf_lm cmp_legacy svm extapic cr8_legacy abm
                                       sse4a misalignsse 3dnowprefetch osvw ibs skinit wdt tce topoext
                                       perfctr_core perfctr_nb bpext perfctr_llc mwaitx cpb cat_l3 cdp_l3
                                       hw_pstate ssbd mba ibrs ibpb stibp 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
                                       avx512_bf16 clzero irperf xsaveerptr rdpru wbnoinvd cppc arat npt lbrv
                                       svm_lock nrip_save tsc_scale vmcb_clean flushbyasid decodeassists
                                       pausefilter pfthreshold avic v_vmsave_vmload vgif v_spec_ctrl
                                       avx512vbmi umip pku ospke avx512_vbmi2 gfni vaes vpclmulqdq avx512_vnni
                                       avx512_bitalg avx512_vpopcntdq rdpid overflow_recov succor smca fsrm
                                       flush_l1d
   Virtualization:                     AMD-V
   L1d cache:                          384 KiB (12 instances)
   L1i cache:                          384 KiB (12 instances)
   L2 cache:                           12 MiB (12 instances)
   L3 cache:                           64 MiB (2 instances)
   NUMA node(s):                       1
   NUMA node0 CPU(s):                  0-23
   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 Retbleed:             Not affected
   Vulnerability Spec rstack overflow: Mitigation; safe RET
   Vulnerability Spec store bypass:    Mitigation; Speculative Store Bypass disabled via prctl and seccomp
   Vulnerability Spectre v1:           Mitigation; usercopy/swapgs barriers and __user pointer sanitization
   Vulnerability Spectre v2:           Mitigation; Retpolines, IBPB conditional, IBRS_FW, STIBP always-on, RSB
                                       filling, PBRSB-eIBRS 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     384K    8 Data            1    64        1             64
      L1i       32K     384K    8 Instruction     1    64        1             64
      L2         1M      12M    8 Unified         2  2048        1             64
      L3        32M      64M   16 Unified         3 32768        1             64

 ------------------------------------------------------------
 8. numactl --hardware
 NOTE: a numactl 'node' might or might not correspond to a physical chip.
   available: 1 nodes (0)
   node 0 cpus: 0-23
   node 0 size: 63505 MB
   node 0 free: 62675 MB
   node distances:
   node   0
     0:  10

 ------------------------------------------------------------
 9. /proc/meminfo
    MemTotal:       65029732 kB

 ------------------------------------------------------------
 10. who -r
   run-level 5 Apr 18 03:06

 ------------------------------------------------------------
 11. Systemd service manager version: systemd 249 (249.11-0ubuntu3.12)
   Default Target  Status
   graphical       running

 ------------------------------------------------------------
 12. Services, from systemctl list-unit-files
   STATE            UNIT FILES
   enabled          ModemManager apparmor 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 irqbalance keyboard-setup lvm2-monitor lxd-agent
                    multipathd networkd-dispatcher open-iscsi open-vm-tools pollinate rsyslog secureboot-db
                    setvtrgb snapd ssh systemd-networkd systemd-networkd-wait-online systemd-pstore
                    systemd-resolved systemd-timesyncd thermald 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 serial-getty@
                    systemd-boot-check-no-failures systemd-network-generator systemd-sysext
                    systemd-time-wait-sync upower
   generated        apport openipmi
   indirect         uuidd
   masked           cryptdisks cryptdisks-early hwclock lvm2 multipath-tools-boot rc rcS screen-cleanup sudo
                    x11-common

 ------------------------------------------------------------
 13. Linux kernel boot-time arguments, from /proc/cmdline
   BOOT_IMAGE=/vmlinuz-5.15.0-102-generic
   root=UUID=d47cad3b-93a2-4ee6-9b75-5cb5f72fe94c
   ro

 ------------------------------------------------------------
 14. cpupower frequency-info
   analyzing CPU 0:
     current policy: frequency should be within 3.00 GHz and 3.70 GHz.
                     The governor "performance" may decide which speed to use
                     within this range.
     boost state support:
       Supported: yes
       Active: yes
       Boost States: 0
       Total States: 2
       Pstate-P0:  3700MHz

 ------------------------------------------------------------
 15. sysctl
   kernel.numa_balancing               0
   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 22.04.4 LTS

 ------------------------------------------------------------
 19. Disk information
 SPEC is set to: /home/asrr/A1
   Filesystem     Type  Size  Used Avail Use% Mounted on
   /dev/nvme0n1p4 ext4  874G   12G  818G   2% /

 ------------------------------------------------------------
 20. /sys/devices/virtual/dmi/id
     Vendor:         AsrockRack
     Product:        1U4LW-B650/2L2T RPSU

 ------------------------------------------------------------
 21. dmidecode
   Additional information from dmidecode 3.3 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:
     2x Unknown CT32G52C42U5.M16G1 32 GB 2 rank 5200
     2x Unknown Unknown


 ------------------------------------------------------------
 22. BIOS
 (This section combines info from /sys/devices and dmidecode.)
    BIOS Vendor:       American Megatrends International, LLC.
    BIOS Version:      10.14
    BIOS Date:         02/05/2024
    BIOS Revision:     5.32

Compiler Version Notes

============================================================================================================
C               | 619.lbm_s(base, peak) 638.imagick_s(base, peak) 644.nab_s(base, peak)
------------------------------------------------------------------------------------------------------------
AMD clang version 14.0.6 (CLANG: AOCC_4.0.0-Build#434 2022_10_28) (based on LLVM Mirror.Version.14.0.6)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /opt/AMD/aocc/aocc-compiler-4.0.0/bin
------------------------------------------------------------------------------------------------------------

============================================================================================================
C++, C, Fortran | 607.cactuBSSN_s(base, peak)
------------------------------------------------------------------------------------------------------------
AMD clang version 14.0.6 (CLANG: AOCC_4.0.0-Build#434 2022_10_28) (based on LLVM Mirror.Version.14.0.6)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /opt/AMD/aocc/aocc-compiler-4.0.0/bin
AMD clang version 14.0.6 (CLANG: AOCC_4.0.0-Build#434 2022_10_28) (based on LLVM Mirror.Version.14.0.6)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /opt/AMD/aocc/aocc-compiler-4.0.0/bin
AMD clang version 14.0.6 (CLANG: AOCC_4.0.0-Build#434 2022_10_28) (based on LLVM Mirror.Version.14.0.6)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /opt/AMD/aocc/aocc-compiler-4.0.0/bin
------------------------------------------------------------------------------------------------------------

============================================================================================================
Fortran         | 603.bwaves_s(base, peak) 649.fotonik3d_s(base, peak) 654.roms_s(base, peak)
------------------------------------------------------------------------------------------------------------
AMD clang version 14.0.6 (CLANG: AOCC_4.0.0-Build#434 2022_10_28) (based on LLVM Mirror.Version.14.0.6)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /opt/AMD/aocc/aocc-compiler-4.0.0/bin
------------------------------------------------------------------------------------------------------------

============================================================================================================
Fortran, C      | 621.wrf_s(base, peak) 627.cam4_s(base, peak) 628.pop2_s(base, peak)
------------------------------------------------------------------------------------------------------------
AMD clang version 14.0.6 (CLANG: AOCC_4.0.0-Build#434 2022_10_28) (based on LLVM Mirror.Version.14.0.6)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /opt/AMD/aocc/aocc-compiler-4.0.0/bin
AMD clang version 14.0.6 (CLANG: AOCC_4.0.0-Build#434 2022_10_28) (based on LLVM Mirror.Version.14.0.6)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /opt/AMD/aocc/aocc-compiler-4.0.0/bin
------------------------------------------------------------------------------------------------------------

Base Compiler Invocation

C benchmarks:

 clang 

Fortran benchmarks:

 flang 

Benchmarks using both Fortran and C:

 flang   clang 

Benchmarks using Fortran, C, and C++:

 clang++   clang   flang 

Base Portability Flags

603.bwaves_s:  -DSPEC_LP64 
607.cactuBSSN_s:  -DSPEC_LP64 
619.lbm_s:  -DSPEC_LP64 
621.wrf_s:  -DSPEC_CASE_FLAG   -Mbyteswapio   -DSPEC_LP64 
627.cam4_s:  -DSPEC_CASE_FLAG   -DSPEC_LP64 
628.pop2_s:  -DSPEC_CASE_FLAG   -Mbyteswapio   -DSPEC_LP64 
638.imagick_s:  -DSPEC_LP64 
644.nab_s:  -DSPEC_LP64 
649.fotonik3d_s:  -DSPEC_LP64 
654.roms_s:  -DSPEC_LP64 

Base Optimization Flags

C benchmarks:

 -m64   -Wl,-mllvm -Wl,-align-all-nofallthru-blocks=6   -Wl,-mllvm -Wl,-reduce-array-computations=3   -O3   -march=znver4   -fveclib=AMDLIBM   -ffast-math   -fopenmp   -flto   -fstruct-layout=7   -mllvm -unroll-threshold=50   -mllvm -inline-threshold=1000   -fremap-arrays   -fstrip-mining   -mllvm -reduce-array-computations=3   -DSPEC_OPENMP   -zopt   -fopenmp=libomp   -lomp   -lamdlibm   -lamdalloc   -lflang 

Fortran benchmarks:

 -m64   -Wl,-mllvm -Wl,-align-all-nofallthru-blocks=6   -Wl,-mllvm -Wl,-reduce-array-computations=3   -Wl,-mllvm -Wl,-enable-X86-prefetching   -DSPEC_OPENMP   -O3   -march=znver4   -fveclib=AMDLIBM   -ffast-math   -fopenmp   -flto   -Mrecursive   -funroll-loops   -mllvm -lsr-in-nested-loop   -mllvm -reduce-array-computations=3   -zopt   -fopenmp=libomp   -lomp   -lamdlibm   -lamdalloc   -lflang 

Benchmarks using both Fortran and C:

 -m64   -Wl,-mllvm -Wl,-align-all-nofallthru-blocks=6   -Wl,-mllvm -Wl,-reduce-array-computations=3   -Wl,-mllvm -Wl,-enable-X86-prefetching   -O3   -march=znver4   -fveclib=AMDLIBM   -ffast-math   -fopenmp   -flto   -fstruct-layout=7   -mllvm -unroll-threshold=50   -mllvm -inline-threshold=1000   -fremap-arrays   -fstrip-mining   -mllvm -reduce-array-computations=3   -DSPEC_OPENMP   -zopt   -Mrecursive   -funroll-loops   -mllvm -lsr-in-nested-loop   -fopenmp=libomp   -lomp   -lamdlibm   -lamdalloc   -lflang 

Benchmarks using Fortran, C, and C++:

 -m64   -Wl,-mllvm -Wl,-align-all-nofallthru-blocks=6   -Wl,-mllvm -Wl,-reduce-array-computations=3   -Wl,-mllvm -Wl,-x86-use-vzeroupper=false   -O3   -march=znver4   -fveclib=AMDLIBM   -ffast-math   -fopenmp   -flto   -fstruct-layout=7   -mllvm -unroll-threshold=50   -mllvm -inline-threshold=1000   -fremap-arrays   -fstrip-mining   -mllvm -reduce-array-computations=3   -DSPEC_OPENMP   -zopt   -mllvm -unroll-threshold=100   -finline-aggressive   -mllvm -loop-unswitch-threshold=200000   -Mrecursive   -funroll-loops   -mllvm -lsr-in-nested-loop   -fopenmp=libomp   -lomp   -lamdlibm   -lamdalloc   -lflang 

Base Other Flags

C benchmarks:

 -Wno-return-type   -Wno-unused-command-line-argument 

Fortran benchmarks:

 -Wno-unused-command-line-argument 

Benchmarks using both Fortran and C:

 -Wno-return-type   -Wno-unused-command-line-argument 

Benchmarks using Fortran, C, and C++:

 -Wno-return-type   -Wno-unused-command-line-argument 

Peak Compiler Invocation

C benchmarks:

 clang 

Fortran benchmarks:

 flang 

Benchmarks using both Fortran and C:

 flang   clang 

Benchmarks using Fortran, C, and C++:

 clang++   clang   flang 

Peak Portability Flags

Same as Base Portability Flags

Peak Optimization Flags

C benchmarks:

619.lbm_s:  -m64   -Wl,-mllvm -Wl,-align-all-nofallthru-blocks=6   -Wl,-mllvm -Wl,-reduce-array-computations=3   -Ofast   -march=znver4   -fveclib=AMDLIBM   -ffast-math   -fopenmp   -flto   -fstruct-layout=9   -mllvm -unroll-threshold=50   -fremap-arrays   -fstrip-mining   -mllvm -inline-threshold=1000   -mllvm -reduce-array-computations=3   -DSPEC_OPENMP   -zopt   -fopenmp=libomp   -lomp   -lamdlibm   -lamdalloc   -lflang 
638.imagick_s:  Same as 619.lbm_s 
644.nab_s:  -m64   -Wl,-mllvm -Wl,-region-vectorize   -Ofast   -march=znver4   -fveclib=AMDLIBM   -ffast-math   -fopenmp   -flto   -fstruct-layout=9   -mllvm -unroll-threshold=50   -fremap-arrays   -fstrip-mining   -mllvm -inline-threshold=1000   -mllvm -reduce-array-computations=3   -DSPEC_OPENMP   -zopt   -fopenmp=libomp   -lomp   -lamdlibm   -lamdalloc   -lflang 

Fortran benchmarks:

603.bwaves_s:  -m64   -Wl,-mllvm -Wl,-align-all-nofallthru-blocks=6   -Wl,-mllvm -Wl,-reduce-array-computations=3   -Wl,-mllvm -Wl,-enable-X86-prefetching   -DSPEC_OPENMP   -Ofast   -march=znver4   -fveclib=AMDLIBM   -ffast-math   -fopenmp   -Mrecursive   -mllvm -reduce-array-computations=3   -fvector-transform   -fscalar-transform   -fopenmp=libomp   -lomp   -lamdlibm   -lamdalloc   -lflang 
649.fotonik3d_s:  -m64   -Wl,-mllvm -Wl,-align-all-nofallthru-blocks=6   -Wl,-mllvm -Wl,-reduce-array-computations=3   -Wl,-mllvm -Wl,-enable-X86-prefetching   -DSPEC_OPENMP   -Ofast   -march=znver4   -fveclib=AMDLIBM   -ffast-math   -fopenmp   -flto   -Mrecursive   -mllvm -reduce-array-computations=3   -zopt   -fopenmp=libomp   -lomp   -lamdlibm   -lamdalloc   -lflang 
654.roms_s:  Same as 603.bwaves_s 

Benchmarks using both Fortran and C:

621.wrf_s:  -m64   -Wl,-mllvm -Wl,-align-all-nofallthru-blocks=6   -Wl,-mllvm -Wl,-reduce-array-computations=3   -Wl,-mllvm -Wl,-enable-X86-prefetching   -Ofast   -march=znver4   -fveclib=AMDLIBM   -ffast-math   -fopenmp   -flto   -fstruct-layout=9   -mllvm -unroll-threshold=50   -fremap-arrays   -fstrip-mining   -mllvm -inline-threshold=1000   -mllvm -reduce-array-computations=3   -DSPEC_OPENMP   -zopt   -O3   -Mrecursive   -funroll-loops   -mllvm -lsr-in-nested-loop   -fopenmp=libomp   -lomp   -lamdlibm   -lamdalloc   -lflang 
627.cam4_s:  -m64   -Wl,-mllvm -Wl,-align-all-nofallthru-blocks=6   -Wl,-mllvm -Wl,-reduce-array-computations=3   -Wl,-mllvm -Wl,-enable-X86-prefetching   -Ofast   -march=znver4   -fveclib=AMDLIBM   -ffast-math   -fopenmp   -flto   -fstruct-layout=9   -mllvm -unroll-threshold=50   -fremap-arrays   -fstrip-mining   -mllvm -inline-threshold=1000   -mllvm -reduce-array-computations=3   -DSPEC_OPENMP   -zopt   -Mrecursive   -fopenmp=libomp   -lomp   -lamdlibm   -lamdalloc   -lflang 
628.pop2_s:  -m64   -Wl,-mllvm -Wl,-align-all-nofallthru-blocks=6   -Wl,-mllvm -Wl,-reduce-array-computations=3   -Wl,-mllvm -Wl,-enable-X86-prefetching   -Ofast   -march=znver4   -fveclib=AMDLIBM   -ffast-math   -fopenmp   -flto   -fstruct-layout=9   -mllvm -unroll-threshold=50   -fremap-arrays   -fstrip-mining   -mllvm -inline-threshold=1000   -mllvm -reduce-array-computations=3   -DSPEC_OPENMP   -zopt   -Mrecursive   -fvector-transform   -fscalar-transform   -fopenmp=libomp   -lomp   -lamdlibm   -lamdalloc   -lflang 

Benchmarks using Fortran, C, and C++:

 -m64   -Wl,-mllvm -Wl,-align-all-nofallthru-blocks=6   -Wl,-mllvm -Wl,-reduce-array-computations=3   -Wl,-mllvm -Wl,-x86-use-vzeroupper=false   -Ofast   -march=znver4   -fveclib=AMDLIBM   -ffast-math   -fopenmp   -flto   -fstruct-layout=9   -mllvm -unroll-threshold=50   -fremap-arrays   -fstrip-mining   -mllvm -inline-threshold=1000   -mllvm -reduce-array-computations=3   -DSPEC_OPENMP   -zopt   -finline-aggressive   -mllvm -unroll-threshold=100   -Mrecursive   -fopenmp=libomp   -lomp   -lamdlibm   -lamdalloc   -lflang 

Peak Other Flags

C benchmarks:

 -Wno-return-type   -Wno-unused-command-line-argument 

Fortran benchmarks:

 -Wno-unused-command-line-argument 

Benchmarks using both Fortran and C:

 -Wno-return-type   -Wno-unused-command-line-argument 

Benchmarks using Fortran, C, and C++:

 -Wno-return-type   -Wno-unused-command-line-argument 

The flags files that were used to format this result can be browsed at
http://www.spec.org/cpu2017/flags/aocc400-flags.html,
http://www.spec.org/cpu2017/flags/ASRockRack_platform_amd_speed_aocc400_znver4_A.html.

You can also download the XML flags sources by saving the following links:
http://www.spec.org/cpu2017/flags/aocc400-flags.xml,
http://www.spec.org/cpu2017/flags/ASRockRack_platform_amd_speed_aocc400_znver4_A.xml.