SPEC CPU®2017 Floating Point Speed Result

Copyright 2017-2022 Standard Performance Evaluation Corporation

ASUSTeK Computer Inc.

ASUS RS720A-E11(KMPP-D32) Server System
2.80 GHz, AMD EPYC 7473X

SPECspeed®2017_fp_base = 22400

SPECspeed®2017_fp_peak = 23500

CPU2017 License: 9016 Test Date: May-2022
Test Sponsor: ASUSTeK Computer Inc. Hardware Availability: Mar-2022
Tested by: ASUSTeK Computer Inc. Software Availability: Dec-2021

Benchmark result graphs are available in the PDF report.

Hardware
CPU Name: AMD EPYC 7473X
  Max MHz: 3700
  Nominal: 2800
Enabled: 48 cores, 2 chips, 2 threads/core
Orderable: 1,2 chips
Cache L1: 32 KB I + 32 KB D on chip per core
  L2: 512 KB I+D on chip per core
  L3: 768 MB I+D on chip per chip, 96 MB shared / 3
cores
  Other: None
Memory: 1 TB (16 x 64 GB 4Rx4 PC4-3200AA-L)
Storage: 1 x 240 GB SATA SSD
Other: None
Software
OS: SUSE Linux Enterprise Server 15 SP2 (x86_64)
Kernel 5.3.18-22-default
Compiler: C/C++/Fortran: Version 3.2.0 of AOCC
Parallel: Yes
Firmware: Version 0901 released Nov-2021
File System: xfs
System State: Run level 3 (multi-user)
Base Pointers: 64-bit
Peak Pointers: 64-bit
Other: jemalloc: jemalloc memory allocator library v5.1.0
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 22400
SPECspeed®2017_fp_peak 23500
Results appear in the order in which they were run. Bold underlined text indicates a median measurement.
603.bwaves_s 48 65.7 8980 65.7 8970 65.8 8970 48 65.7 8980 65.7 8970 65.8 8970
607.cactuBSSN_s 48 45.4 3670 45.6 3660 46.5 3580 48 45.4 3670 45.4 3670 45.4 3680
619.lbm_s 48 41.2 1270 40.8 1280 40.9 1280 48 34.7 1510 35.5 1470 33.8 1550
621.wrf_s 48 83.2 1590 84.5 1560 83.0 1590 48 82.4 1600 82.8 1600 81.2 1630
627.cam4_s 48 57.7 1530 57.7 1540 57.5 1540 48 56.9 1560 59.0 1500 57.5 1540
628.pop2_s 48 1630 73.0 1620 73.2 1620 73.2 48 1630 73.0 1620 73.2 1620 73.2
638.imagick_s 48 51.7 2790 51.8 2780 52.0 2780 48 51.7 2790 51.8 2780 52.0 2780
644.nab_s 48 46.5 3760 46.5 3760 46.6 3750 96 40.3 4330 40.3 4330 40.3 4330
649.fotonik3d_s 48 71.4 1280 70.5 1290 70.6 1290 48 71.4 1280 70.5 1290 70.6 1290
654.roms_s 48 48.8 3230 49.7 3170 50.2 3140 48 42.4 3710 42.4 3710 42.2 3730

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
OS set to performance mode via cpupower frequency-set -g performance

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 enable THP only on request for peak runs of 628.pop2_s:
'echo madvise > /sys/kernel/mm/transparent_hugepage/enabled' run as root.
To disable THP for peak runs of 627.cam4_s, 649.fotonik3d_s, and 654.roms_s,
'echo never > /sys/kernel/mm/transparent_hugepage/enabled' run as root.

Environment Variables Notes

Environment variables set by runcpu before the start of the run:
GOMP_CPU_AFFINITY = "0-95"
LD_LIBRARY_PATH =
     "/spec2017/amd_speed_aocc320_milanx_A_lib/lib;/spec2017/amd_speed_aocc32
     0_milanx_A_lib/lib32:"
LIBOMP_NUM_HIDDEN_HELPER_THREADS = "0"
MALLOC_CONF = "retain:true"
OMP_DYNAMIC = "false"
OMP_SCHEDULE = "static"
OMP_STACKSIZE = "128M"
OMP_THREAD_LIMIT = "96"

Environment variables set by runcpu during the 607.cactuBSSN_s peak run:
GOMP_CPU_AFFINITY = "0-47"

Environment variables set by runcpu during the 619.lbm_s peak run:
GOMP_CPU_AFFINITY = "0-47"

Environment variables set by runcpu during the 621.wrf_s peak run:
GOMP_CPU_AFFINITY = "0-47"

Environment variables set by runcpu during the 627.cam4_s peak run:
GOMP_CPU_AFFINITY = "0-47"

Environment variables set by runcpu during the 644.nab_s peak run:
GOMP_CPU_AFFINITY = "0-95"

Environment variables set by runcpu during the 654.roms_s peak run:
GOMP_CPU_AFFINITY = "0-47"

General Notes

Binaries were compiled on a system with 2x AMD EPYC 7742 CPU + 1TiB Memory using openSUSE 15.2

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.

jemalloc: configured and built with GCC v4.8.2 in RHEL 7.4 (No options specified)
jemalloc 5.1.0 is available here:
https://github.com/jemalloc/jemalloc/releases/download/5.1.0/jemalloc-5.1.0.tar.bz2

Platform Notes

BIOS Configuration:
DLWM Support = Disabled
SVM Mode = Disabled
NUMA nodes per socket = NPS1
APBDIS = 1
Fix SOC P-state = P0
Engine Boost = Enabled

 Sysinfo program /spec2017/bin/sysinfo
 Rev: r6622 of 2021-04-07 982a61ec0915b55891ef0e16acafc64d
 running on localhost Thu May  5 12:23:37 2022

 SUT (System Under Test) info as seen by some common utilities.
 For more information on this section, see
    https://www.spec.org/cpu2017/Docs/config.html#sysinfo

 From /proc/cpuinfo
    model name : AMD EPYC 7473X 24-Core Processor
       2  "physical id"s (chips)
       96 "processors"
    cores, siblings (Caution: counting these is hw and system dependent. The following
    excerpts from /proc/cpuinfo might not be reliable.  Use with caution.)
       cpu cores : 24
       siblings  : 48
       physical 0: cores 0 1 2 4 5 6 8 9 10 12 13 14 16 17 18 20 21 22 24 25 26 28 29 30
       physical 1: cores 0 1 2 4 5 6 8 9 10 12 13 14 16 17 18 20 21 22 24 25 26 28 29 30

 From lscpu from util-linux 2.33.1:
      Architecture:        x86_64
      CPU op-mode(s):      32-bit, 64-bit
      Byte Order:          Little Endian
      Address sizes:       48 bits physical, 48 bits virtual
      CPU(s):              96
      On-line CPU(s) list: 0-95
      Thread(s) per core:  2
      Core(s) per socket:  24
      Socket(s):           2
      NUMA node(s):        2
      Vendor ID:           AuthenticAMD
      CPU family:          25
      Model:               1
      Model name:          AMD EPYC 7473X 24-Core Processor
      Stepping:            2
      CPU MHz:             3132.538
      CPU max MHz:         2800.0000
      CPU min MHz:         1500.0000
      BogoMIPS:            5589.78
      Virtualization:      AMD-V
      L1d cache:           32K
      L1i cache:           32K
      L2 cache:            512K
      L3 cache:            98304K
      NUMA node0 CPU(s):   0-23,48-71
      NUMA node1 CPU(s):   24-47,72-95
      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 pni pclmulqdq
      monitor ssse3 fma cx16 pcid 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 invpcid_single hw_pstate ssbd mba ibrs ibpb stibp vmmcall fsgsbase
      bmi1 avx2 smep bmi2 invpcid cqm rdt_a rdseed adx smap clflushopt clwb sha_ni
      xsaveopt xsavec xgetbv1 xsaves cqm_llc cqm_occup_llc cqm_mbm_total cqm_mbm_local
      clzero irperf xsaveerptr wbnoinvd arat npt lbrv svm_lock nrip_save tsc_scale
      vmcb_clean flushbyasid decodeassists pausefilter pfthreshold v_vmsave_vmload vgif
      umip pku ospke vaes vpclmulqdq rdpid overflow_recov succor smca

 /proc/cpuinfo cache data
    cache size : 512 KB

 From numactl --hardware
 WARNING: a numactl 'node' might or might not correspond to a physical chip.
   available: 2 nodes (0-1)
   node 0 cpus: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 48 49 50 51
   52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71
   node 0 size: 515836 MB
   node 0 free: 514915 MB
   node 1 cpus: 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 72
   73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95
   node 1 size: 516079 MB
   node 1 free: 515512 MB
   node distances:
   node   0   1
     0:  10  32
     1:  32  10

 From /proc/meminfo
    MemTotal:       1056681948 kB
    HugePages_Total:       0
    Hugepagesize:       2048 kB

 /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor has
    performance

 From /etc/*release* /etc/*version*
    os-release:
       NAME="SLES"
       VERSION="15-SP2"
       VERSION_ID="15.2"
       PRETTY_NAME="SUSE Linux Enterprise Server 15 SP2"
       ID="sles"
       ID_LIKE="suse"
       ANSI_COLOR="0;32"
       CPE_NAME="cpe:/o:suse:sles:15:sp2"

 uname -a:
    Linux localhost 5.3.18-22-default #1 SMP Wed Jun 3 12:16:43 UTC 2020 (720aeba) x86_64
    x86_64 x86_64 GNU/Linux

 Kernel self-reported vulnerability status:

 CVE-2018-12207 (iTLB Multihit):                        Not affected
 CVE-2018-3620 (L1 Terminal Fault):                     Not affected
 Microarchitectural Data Sampling:                      Not affected
 CVE-2017-5754 (Meltdown):                              Not affected
 CVE-2018-3639 (Speculative Store Bypass):              Mitigation: Speculative Store
                                                        Bypass disabled via prctl and
                                                        seccomp
 CVE-2017-5753 (Spectre variant 1):                     Mitigation: usercopy/swapgs
                                                        barriers and __user pointer
                                                        sanitization
 CVE-2017-5715 (Spectre variant 2):                     Mitigation: Full AMD retpoline,
                                                        IBPB: conditional, IBRS_FW, STIBP:
                                                        always-on, RSB filling
 CVE-2020-0543 (Special Register Buffer Data Sampling): Not affected
 CVE-2019-11135 (TSX Asynchronous Abort):               Not affected

 run-level 3 May 5 09:56

 SPEC is set to: /spec2017
    Filesystem     Type  Size  Used Avail Use% Mounted on
    /dev/sda4      xfs   199G   56G  144G  29% /

 From /sys/devices/virtual/dmi/id
     Vendor:         ASUSTeK COMPUTER INC.
     Product:        RS720A-E11-RS12E
     Product Family: Server
     Serial:         123456789012

 Additional information from dmidecode 3.2 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:
     16x Samsung M386A8K40DM2-CWE 64 GB 4 rank 3200
     16x Unknown Unknown

 BIOS:
    BIOS Vendor:       American Megatrends Inc.
    BIOS Version:      0901
    BIOS Date:         11/23/2021
    BIOS Revision:     9.1

 (End of data from sysinfo program)

Compiler Version Notes

==============================================================================
C               | 619.lbm_s(base, peak) 638.imagick_s(base, peak)
                | 644.nab_s(base, peak)
------------------------------------------------------------------------------
AMD clang version 13.0.0 (CLANG: AOCC_3.2.0-Build#128 2021_11_12) (based on
  LLVM Mirror.Version.13.0.0)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /opt/AMD/aocc-compiler-3.2.0/bin
------------------------------------------------------------------------------

==============================================================================
C++, C, Fortran | 607.cactuBSSN_s(base, peak)
------------------------------------------------------------------------------
AMD clang version 13.0.0 (CLANG: AOCC_3.2.0-Build#128 2021_11_12) (based on
  LLVM Mirror.Version.13.0.0)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /opt/AMD/aocc-compiler-3.2.0/bin
AMD clang version 13.0.0 (CLANG: AOCC_3.2.0-Build#128 2021_11_12) (based on
  LLVM Mirror.Version.13.0.0)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /opt/AMD/aocc-compiler-3.2.0/bin
AMD clang version 13.0.0 (CLANG: AOCC_3.2.0-Build#128 2021_11_12) (based on
  LLVM Mirror.Version.13.0.0)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /opt/AMD/aocc-compiler-3.2.0/bin
------------------------------------------------------------------------------

==============================================================================
Fortran         | 603.bwaves_s(base, peak) 649.fotonik3d_s(base, peak)
                | 654.roms_s(base, peak)
------------------------------------------------------------------------------
AMD clang version 13.0.0 (CLANG: AOCC_3.2.0-Build#128 2021_11_12) (based on
  LLVM Mirror.Version.13.0.0)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /opt/AMD/aocc-compiler-3.2.0/bin
------------------------------------------------------------------------------

==============================================================================
Fortran, C      | 621.wrf_s(base, peak) 627.cam4_s(base, peak)
                | 628.pop2_s(base, peak)
------------------------------------------------------------------------------
AMD clang version 13.0.0 (CLANG: AOCC_3.2.0-Build#128 2021_11_12) (based on
  LLVM Mirror.Version.13.0.0)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /opt/AMD/aocc-compiler-3.2.0/bin
AMD clang version 13.0.0 (CLANG: AOCC_3.2.0-Build#128 2021_11_12) (based on
  LLVM Mirror.Version.13.0.0)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /opt/AMD/aocc-compiler-3.2.0/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,-region-vectorize   -Wl,-mllvm -Wl,-function-specialize   -Wl,-mllvm -Wl,-align-all-nofallthru-blocks=6   -Wl,-mllvm -Wl,-reduce-array-computations=3   -O3   -march=znver3   -fveclib=AMDLIBM   -ffast-math   -fopenmp   -flto   -fstruct-layout=5   -mllvm -unroll-threshold=50   -mllvm -inline-threshold=1000   -fremap-arrays   -mllvm -function-specialize   -flv-function-specialization   -mllvm -enable-gvn-hoist   -mllvm -global-vectorize-slp=true   -mllvm -enable-licm-vrp   -mllvm -reduce-array-computations=3   -z muldefs   -DSPEC_OPENMP   -fopenmp=libomp   -lomp   -lamdlibm   -ljemalloc   -lflang 

Fortran benchmarks:

 -m64   -Wl,-mllvm -Wl,-enable-X86-prefetching   -Wl,-mllvm -Wl,-enable-licm-vrp   -Wl,-mllvm -Wl,-region-vectorize   -Wl,-mllvm -Wl,-function-specialize   -Wl,-mllvm -Wl,-align-all-nofallthru-blocks=6   -Wl,-mllvm -Wl,-reduce-array-computations=3   -Hz,1,0x1   -O3   -march=znver3   -fveclib=AMDLIBM   -ffast-math   -fopenmp   -Mrecursive   -mllvm -fuse-tile-inner-loop   -funroll-loops   -mllvm -extra-vectorizer-passes   -mllvm -lsr-in-nested-loop   -mllvm -enable-licm-vrp   -mllvm -reduce-array-computations=3   -mllvm -global-vectorize-slp=true   -mllvm -enable-loopinterchange   -mllvm -compute-interchange-order   -z muldefs   -DSPEC_OPENMP   -fopenmp=libomp   -lomp   -lamdlibm   -ljemalloc   -lflang 

Benchmarks using both Fortran and C:

 -m64   -Wl,-mllvm -Wl,-enable-X86-prefetching   -Wl,-mllvm -Wl,-enable-licm-vrp   -Wl,-mllvm -Wl,-region-vectorize   -Wl,-mllvm -Wl,-function-specialize   -Wl,-mllvm -Wl,-align-all-nofallthru-blocks=6   -Wl,-mllvm -Wl,-reduce-array-computations=3   -O3   -march=znver3   -fveclib=AMDLIBM   -ffast-math   -fopenmp   -flto   -fstruct-layout=5   -mllvm -unroll-threshold=50   -mllvm -inline-threshold=1000   -fremap-arrays   -mllvm -function-specialize   -flv-function-specialization   -mllvm -enable-gvn-hoist   -mllvm -global-vectorize-slp=true   -mllvm -enable-licm-vrp   -mllvm -reduce-array-computations=3   -Hz,1,0x1   -Mrecursive   -mllvm -fuse-tile-inner-loop   -funroll-loops   -mllvm -extra-vectorizer-passes   -mllvm -lsr-in-nested-loop   -mllvm -enable-loopinterchange   -mllvm -compute-interchange-order   -z muldefs   -DSPEC_OPENMP   -fopenmp=libomp   -lomp   -lamdlibm   -ljemalloc   -lflang 

Benchmarks using Fortran, C, and C++:

 -m64   -Wl,-mllvm -Wl,-x86-use-vzeroupper=false   -Wl,-mllvm -Wl,-region-vectorize   -Wl,-mllvm -Wl,-function-specialize   -Wl,-mllvm -Wl,-align-all-nofallthru-blocks=6   -Wl,-mllvm -Wl,-reduce-array-computations=3   -O3   -march=znver3   -fveclib=AMDLIBM   -ffast-math   -fopenmp   -flto   -fstruct-layout=5   -mllvm -unroll-threshold=50   -mllvm -inline-threshold=1000   -fremap-arrays   -mllvm -function-specialize   -flv-function-specialization   -mllvm -enable-gvn-hoist   -mllvm -global-vectorize-slp=true   -mllvm -enable-licm-vrp   -mllvm -reduce-array-computations=3   -mllvm -enable-partial-unswitch   -mllvm -unroll-threshold=100   -finline-aggressive   -mllvm -loop-unswitch-threshold=200000   -mllvm -reroll-loops   -mllvm -aggressive-loop-unswitch   -mllvm -extra-vectorizer-passes   -mllvm -convert-pow-exp-to-int=false   -Hz,1,0x1   -Mrecursive   -mllvm -fuse-tile-inner-loop   -funroll-loops   -mllvm -lsr-in-nested-loop   -mllvm -enable-loopinterchange   -mllvm -compute-interchange-order   -z muldefs   -DSPEC_OPENMP   -fopenmp=libomp   -lomp   -lamdlibm   -ljemalloc   -lflang 

Base Other Flags

C benchmarks:

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

Fortran benchmarks:

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

Benchmarks using both Fortran and C:

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

Benchmarks using Fortran, C, and C++:

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

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,-function-specialize   -Wl,-mllvm -Wl,-align-all-nofallthru-blocks=6   -Wl,-mllvm -Wl,-reduce-array-computations=3   -Ofast   -march=znver3   -fveclib=AMDLIBM   -ffast-math   -fopenmp   -flto   -fstruct-layout=5   -mllvm -unroll-threshold=50   -fremap-arrays   -flv-function-specialization   -mllvm -inline-threshold=1000   -mllvm -enable-gvn-hoist   -mllvm -global-vectorize-slp=true   -mllvm -function-specialize   -mllvm -enable-licm-vrp   -mllvm -reduce-array-computations=3   -DSPEC_OPENMP   -fopenmp=libomp   -lomp   -lamdlibm   -ljemalloc   -lflang 
638.imagick_s:  basepeak = yes 
644.nab_s:  -m64   -Wl,-allow-multiple-definition   -Wl,-mllvm -Wl,-enable-licm-vrp   -Wl,-mllvm -Wl,-do-block-reorder=aggressive   -Wl,-mllvm -Wl,-region-vectorize   -Wl,-mllvm -Wl,-function-specialize   -Wl,-mllvm -Wl,-align-all-nofallthru-blocks=6   -Wl,-mllvm -Wl,-reduce-array-computations=3   -Ofast   -march=znver3   -fveclib=AMDLIBM   -ffast-math   -fopenmp   -flto   -fstruct-layout=5   -mllvm -unroll-threshold=50   -mllvm -inline-threshold=1000   -fremap-arrays   -mllvm -function-specialize   -flv-function-specialization   -mllvm -enable-gvn-hoist   -mllvm -global-vectorize-slp=true   -mllvm -enable-licm-vrp   -mllvm -reduce-array-computations=3   -mllvm -do-block-reorder=aggressive   -DSPEC_OPENMP   -fopenmp=libomp   -lomp   -lamdlibm   -ljemalloc   -lflang 

Fortran benchmarks:

603.bwaves_s:  basepeak = yes 
649.fotonik3d_s:  basepeak = yes 
654.roms_s:  -m64   -Wl,-mllvm -Wl,-enable-X86-prefetching   -Wl,-mllvm -Wl,-enable-licm-vrp   -Wl,-mllvm -Wl,-function-specialize   -Wl,-mllvm -Wl,-align-all-nofallthru-blocks=6   -Wl,-mllvm -Wl,-reduce-array-computations=3   -Ofast   -march=znver3   -fveclib=AMDLIBM   -ffast-math   -fopenmp   -Mrecursive   -mllvm -reduce-array-computations=3   -mllvm -global-vectorize-slp=true   -mllvm -enable-licm-vrp   -DSPEC_OPENMP   -fopenmp=libomp   -lomp   -lamdlibm   -ljemalloc   -lflang 

Benchmarks using both Fortran and C:

621.wrf_s:  -m64   -Wl,-mllvm -Wl,-enable-X86-prefetching   -Wl,-mllvm -Wl,-enable-licm-vrp   -Wl,-mllvm -Wl,-function-specialize   -Wl,-mllvm -Wl,-align-all-nofallthru-blocks=6   -Wl,-mllvm -Wl,-reduce-array-computations=3   -Ofast   -march=znver3   -fveclib=AMDLIBM   -ffast-math   -fopenmp   -flto   -fstruct-layout=5   -mllvm -unroll-threshold=50   -fremap-arrays   -flv-function-specialization   -mllvm -inline-threshold=1000   -mllvm -enable-gvn-hoist   -mllvm -global-vectorize-slp=true   -mllvm -function-specialize   -mllvm -enable-licm-vrp   -mllvm -reduce-array-computations=3   -Hz,1,0x1   -Mrecursive   -mllvm -fuse-tile-inner-loop   -funroll-loops   -mllvm -extra-vectorizer-passes   -mllvm -lsr-in-nested-loop   -mllvm -enable-loopinterchange   -mllvm -compute-interchange-order   -DSPEC_OPENMP   -fopenmp=libomp   -lomp   -lamdlibm   -ljemalloc   -lflang 
627.cam4_s:  Same as 621.wrf_s 
628.pop2_s:  basepeak = yes 

Benchmarks using Fortran, C, and C++:

 -m64   -Wl,-mllvm -Wl,-x86-use-vzeroupper=false   -Wl,-mllvm -Wl,-enable-licm-vrp   -Wl,-mllvm -Wl,-do-block-reorder=aggressive   -Wl,-mllvm -Wl,-function-specialize   -Wl,-mllvm -Wl,-align-all-nofallthru-blocks=6   -Wl,-mllvm -Wl,-reduce-array-computations=3   -Ofast   -march=znver3   -fveclib=AMDLIBM   -ffast-math   -fopenmp   -flto   -fstruct-layout=5   -mllvm -unroll-threshold=50   -fremap-arrays   -flv-function-specialization   -mllvm -inline-threshold=1000   -mllvm -enable-gvn-hoist   -mllvm -global-vectorize-slp=true   -mllvm -function-specialize   -mllvm -enable-licm-vrp   -mllvm -reduce-array-computations=3   -finline-aggressive   -mllvm -unroll-threshold=100   -mllvm -reroll-loops   -mllvm -aggressive-loop-unswitch   -Mrecursive   -mllvm -do-block-reorder=aggressive   -DSPEC_OPENMP   -fopenmp=libomp   -lomp   -lamdlibm   -ljemalloc   -lflang 

Peak Other Flags

C benchmarks:

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

Fortran benchmarks:

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

Benchmarks using both Fortran and C:

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

Benchmarks using Fortran, C, and C++:

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

The flags files that were used to format this result can be browsed at
http://www.spec.org/cpu2017/flags/ASUSTekPlatform-Settings-AMD-Milan-V1.6.html,
http://www.spec.org/cpu2017/flags/aocc320-flags-A1.html.

You can also download the XML flags sources by saving the following links:
http://www.spec.org/cpu2017/flags/ASUSTekPlatform-Settings-AMD-Milan-V1.6.xml,
http://www.spec.org/cpu2017/flags/aocc320-flags-A1.xml.