SPEC CPU®2017 Floating Point Speed Result

Copyright 2017-2020 Standard Performance Evaluation Corporation

Supermicro

A+ Server 2113S-WTRT
(H11SSW-NT , AMD EPYC 7642)

SPECspeed®2017_fp_base = 12300

SPECspeed®2017_fp_peak = 12500

CPU2017 License: 001176 Test Date: Aug-2020
Test Sponsor: Supermicro Hardware Availability: Aug-2019
Tested by: Supermicro Software Availability: Aug-2019

Benchmark result graphs are available in the PDF report.

Hardware
CPU Name: AMD EPYC 7642
  Max MHz: 3300
  Nominal: 2300
Enabled: 48 cores, 1 chip, 2 threads/core
Orderable: 1 chip
Cache L1: 32 KB I + 32 KB D on chip per core
  L2: 512 KB I+D on chip per core
  L3: 256 MB I+D on chip per chip, 16 MB shared / 3
cores
  Other: None
Memory: 256 GB (16 x 16 GB 2Rx8 PC4-3200AA-R)
Storage: 1 x 200 GB SATA III SSD
Other: None
Software
OS: Ubuntu 19.04
kernel 5.0.0-25-generic
Compiler: C/C++/Fortran: Version 2.0.0 of AOCC
Parallel: Yes
Firmware: Version 2.1 released Feb-2020
File System: ext4
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 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 12300
SPECspeed®2017_fp_peak 12500
Results appear in the order in which they were run. Bold underlined text indicates a median measurement.
603.bwaves_s 48 1730 3410 1730 3420 1730 3400 48 1730 3410 1730 3420 1730 3400
607.cactuBSSN_s 48 83.8 1990 84.7 1970 87.2 1910 48 84.5 1970 84.4 1980 84.4 1970
619.lbm_s 48 1570 33.4 1580 33.1 1590 33.0 96 1570 33.4 1570 33.4 1570 33.4
621.wrf_s 48 1040 1270 1040 1270 1040 1270 48 1040 1270 1040 1270 1040 1270
627.cam4_s 48 97.5 90.9 97.9 90.5 97.5 90.9 48 97.5 90.9 97.9 90.5 97.5 90.9
628.pop2_s 48 1810 65.5 1810 65.6 1820 65.1 48 1810 65.5 1810 65.6 1820 65.1
638.imagick_s 48 76.5 1890 77.0 1870 76.7 1880 48 75.7 1900 76.0 1900 76.0 1900
644.nab_s 48 66.1 2640 66.2 2640 66.1 2640 96 58.0 3010 58.1 3010 58.0 3010
649.fotonik3d_s 48 1430 63.6 1430 63.8 1430 63.7 48 1430 63.6 1430 63.8 1430 63.7
654.roms_s 48 1040 1520 1040 1520 1040 1520 48 1010 1550 1020 1550 1020 1550

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
'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>

Set dirty_ratio=8 to limit dirty cache to 8% of memory
Set swappiness=1 to swap only if necessary
Set zone_reclaim_mode=1 to free local node memory and avoid remote memory
sync then drop_caches=3 to reset caches before invoking runcpu

dirty_ratio, swappiness, zone_reclaim_mode and drop_caches were
all set using privileged echo (e.g. echo 1 > /proc/sys/vm/swappiness).

Transparent huge pages set to 'always' for this run (OS default)

Environment Variables Notes

Environment variables set by runcpu before the start of the run:
GOMP_CPU_AFFINITY = "0-95"
LD_LIBRARY_PATH =
     "/home/cpu2017/amd_speed_aocc200_rome_C_lib/64;/home/cpu2017/amd_speed_a
     occ200_rome_C_lib/32:"
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 48 1 49 2 50 3 51 4 52 5 53 6 54 7 55 8 56 9 57 10 58
     11 59 12 60 13 61 14 62 15 63 16 64 17 65 18 66 19 67 20 68 21 69 22 70
     23 71 24 72 25 73 26 74 27 75 28 76 29 77 30 78 31 79 32 80 33 81 34 82
     35 83 36 84 37 85 38 86 39 87 40 88 41 89 42 90 43 91 44 92 45 93 46 94
     47 95"

Environment variables set by runcpu during the 638.imagick_s peak run:
GOMP_CPU_AFFINITY = "0-47"

Environment variables set by runcpu during the 644.nab_s peak run:
GOMP_CPU_AFFINITY = "0 48 1 49 2 50 3 51 4 52 5 53 6 54 7 55 8 56 9 57 10 58
     11 59 12 60 13 61 14 62 15 63 16 64 17 65 18 66 19 67 20 68 21 69 22 70
     23 71 24 72 25 73 26 74 27 75 28 76 29 77 30 78 31 79 32 80 33 81 34 82
     35 83 36 84 37 85 38 86 39 87 40 88 41 89 42 90 43 91 44 92 45 93 46 94
     47 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 7601 CPU + 512GB Memory using Fedora 26

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 v9.1.0 in Ubuntu 19.04 with -O3 -znver2 -flto
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 Settings:
Determinism Control = Manual
Determinism Slider = Power
cTDP Control = Manual
cTDP = 240
Package Power Limit Control = Manual
Package Power Limit = 240
APBDIS = 1
NUMA Nodes Per Socket = NPS4

 Sysinfo program /home/cpu2017/bin/sysinfo
 Rev: r6365 of 2019-08-21 295195f888a3d7edb1e6e46a485a0011
 running on h11ssw-01 Fri Aug 14 15:09:56 2020

 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 7642 48-Core Processor
       1  "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 : 48
       siblings  : 96
       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
       32 33 34 36 37 38 40 41 42 44 45 46 48 49 50 52 53 54 56 57 58 60 61 62

 From lscpu:
      Architecture:        x86_64
      CPU op-mode(s):      32-bit, 64-bit
      Byte Order:          Little Endian
      Address sizes:       43 bits physical, 48 bits virtual
      CPU(s):              96
      On-line CPU(s) list: 0-95
      Thread(s) per core:  2
      Core(s) per socket:  48
      Socket(s):           1
      NUMA node(s):        4
      Vendor ID:           AuthenticAMD
      CPU family:          23
      Model:               49
      Model name:          AMD EPYC 7642 48-Core Processor
      Stepping:            0
      CPU MHz:             1837.517
      CPU max MHz:         2300.0000
      CPU min MHz:         1500.0000
      BogoMIPS:            4600.07
      Virtualization:      AMD-V
      L1d cache:           32K
      L1i cache:           32K
      L2 cache:            512K
      L3 cache:            16384K
      NUMA node0 CPU(s):   0-11,48-59
      NUMA node1 CPU(s):   12-23,60-71
      NUMA node2 CPU(s):   24-35,72-83
      NUMA node3 CPU(s):   36-47,84-95
      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 xtopology nonstop_tsc cpuid extd_apicid aperfmperf 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 sme ssbd mba sev ibrs ibpb stibp vmmcall fsgsbase bmi1 avx2
      smep bmi2 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 avic v_vmsave_vmload vgif umip 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: 4 nodes (0-3)
   node 0 cpus: 0 1 2 3 4 5 6 7 8 9 10 11 48 49 50 51 52 53 54 55 56 57 58 59
   node 0 size: 64386 MB
   node 0 free: 63971 MB
   node 1 cpus: 12 13 14 15 16 17 18 19 20 21 22 23 60 61 62 63 64 65 66 67 68 69 70 71
   node 1 size: 64505 MB
   node 1 free: 64175 MB
   node 2 cpus: 24 25 26 27 28 29 30 31 32 33 34 35 72 73 74 75 76 77 78 79 80 81 82 83
   node 2 size: 64505 MB
   node 2 free: 64173 MB
   node 3 cpus: 36 37 38 39 40 41 42 43 44 45 46 47 84 85 86 87 88 89 90 91 92 93 94 95
   node 3 size: 64469 MB
   node 3 free: 63789 MB
   node distances:
   node   0   1   2   3
     0:  10  12  12  12
     1:  12  10  12  12
     2:  12  12  10  12
     3:  12  12  12  10

 From /proc/meminfo
    MemTotal:       264055928 kB
    HugePages_Total:       0
    Hugepagesize:       2048 kB

 /usr/bin/lsb_release -d
    Ubuntu 19.04

 From /etc/*release* /etc/*version*
    debian_version: buster/sid
    os-release:
       NAME="Ubuntu"
       VERSION="19.04 (Disco Dingo)"
       ID=ubuntu
       ID_LIKE=debian
       PRETTY_NAME="Ubuntu 19.04"
       VERSION_ID="19.04"
       HOME_URL="https://www.ubuntu.com/"
       SUPPORT_URL="https://help.ubuntu.com/"

 uname -a:
    Linux h11ssw-01 5.0.0-25-generic #26-Ubuntu SMP Thu Aug 1 12:04:58 UTC 2019 x86_64
    x86_64 x86_64 GNU/Linux

 Kernel self-reported vulnerability status:

 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: conditional, RSB
                                           filling

 run-level 3 Aug 13 15:04

 SPEC is set to: /home/cpu2017
    Filesystem     Type  Size  Used Avail Use% Mounted on
    /dev/sda2      ext4  183G   34G  141G  20% /

 From /sys/devices/virtual/dmi/id
     BIOS:    American Megatrends Inc. 2.1 02/21/2020
     Vendor:  Supermicro
     Product: Super Server
     Serial:  0123456789

 Additional information from dmidecode 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 SK Hynix HMA82GR7CJR8N-XN 16 kB 2 rank 3200

 (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)
------------------------------------------------------------------------------
AOCC.LLVM.2.0.0.B191.2019_07_19 clang version 8.0.0 (CLANG: Jenkins
  AOCC_2_0_0-Build#191) (based on LLVM AOCC.LLVM.2.0.0.B191.2019_07_19)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /sppo/dev/compilers/aocc-compiler-2.0.0/bin
------------------------------------------------------------------------------

==============================================================================
C++, C, Fortran | 607.cactuBSSN_s(base, peak)
------------------------------------------------------------------------------
AOCC.LLVM.2.0.0.B191.2019_07_19 clang version 8.0.0 (CLANG: Jenkins
  AOCC_2_0_0-Build#191) (based on LLVM AOCC.LLVM.2.0.0.B191.2019_07_19)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /sppo/dev/compilers/aocc-compiler-2.0.0/bin
AOCC.LLVM.2.0.0.B191.2019_07_19 clang version 8.0.0 (CLANG: Jenkins
  AOCC_2_0_0-Build#191) (based on LLVM AOCC.LLVM.2.0.0.B191.2019_07_19)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /sppo/dev/compilers/aocc-compiler-2.0.0/bin
AOCC.LLVM.2.0.0.B191.2019_07_19 clang version 8.0.0 (CLANG: Jenkins
  AOCC_2_0_0-Build#191) (based on LLVM AOCC.LLVM.2.0.0.B191.2019_07_19)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /sppo/dev/compilers/aocc-compiler-2.0.0/bin
------------------------------------------------------------------------------

==============================================================================
Fortran         | 603.bwaves_s(base, peak) 649.fotonik3d_s(base, peak)
                | 654.roms_s(base, peak)
------------------------------------------------------------------------------
AOCC.LLVM.2.0.0.B191.2019_07_19 clang version 8.0.0 (CLANG: Jenkins
  AOCC_2_0_0-Build#191) (based on LLVM AOCC.LLVM.2.0.0.B191.2019_07_19)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /sppo/dev/compilers/aocc-compiler-2.0.0/bin
------------------------------------------------------------------------------

==============================================================================
Fortran, C      | 621.wrf_s(base, peak) 627.cam4_s(base, peak)
                | 628.pop2_s(base, peak)
------------------------------------------------------------------------------
AOCC.LLVM.2.0.0.B191.2019_07_19 clang version 8.0.0 (CLANG: Jenkins
  AOCC_2_0_0-Build#191) (based on LLVM AOCC.LLVM.2.0.0.B191.2019_07_19)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /sppo/dev/compilers/aocc-compiler-2.0.0/bin
AOCC.LLVM.2.0.0.B191.2019_07_19 clang version 8.0.0 (CLANG: Jenkins
  AOCC_2_0_0-Build#191) (based on LLVM AOCC.LLVM.2.0.0.B191.2019_07_19)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /sppo/dev/compilers/aocc-compiler-2.0.0/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:

 -flto   -Wl,-mllvm -Wl,-function-specialize   -Wl,-mllvm -Wl,-region-vectorize   -Wl,-mllvm -Wl,-vector-library=LIBMVEC   -Wl,-mllvm -Wl,-reduce-array-computations=3   -O3   -ffast-math   -march=znver2   -fstruct-layout=3   -mllvm -unroll-threshold=50   -fremap-arrays   -mllvm -function-specialize   -mllvm -enable-gvn-hoist   -mllvm -reduce-array-computations=3   -mllvm -global-vectorize-slp   -mllvm -vector-library=LIBMVEC   -mllvm -inline-threshold=1000   -flv-function-specialization   -z muldefs   -DSPEC_OPENMP   -fopenmp   -fopenmp=libomp   -lomp   -lpthread   -ldl   -lmvec   -lamdlibm   -ljemalloc   -lflang 

Fortran benchmarks:

 -flto   -Wl,-mllvm -Wl,-function-specialize   -Wl,-mllvm -Wl,-region-vectorize   -Wl,-mllvm -Wl,-vector-library=LIBMVEC   -Wl,-mllvm -Wl,-reduce-array-computations=3   -O3   -march=znver2   -funroll-loops   -Mrecursive   -mllvm -vector-library=LIBMVEC   -z muldefs   -Kieee   -fno-finite-math-only   -DSPEC_OPENMP   -fopenmp   -fopenmp=libomp   -lomp   -lpthread   -ldl   -lmvec   -lamdlibm   -ljemalloc   -lflang 

Benchmarks using both Fortran and C:

 -flto   -Wl,-mllvm -Wl,-function-specialize   -Wl,-mllvm -Wl,-region-vectorize   -Wl,-mllvm -Wl,-vector-library=LIBMVEC   -Wl,-mllvm -Wl,-reduce-array-computations=3   -O3   -ffast-math   -march=znver2   -fstruct-layout=3   -mllvm -unroll-threshold=50   -fremap-arrays   -mllvm -function-specialize   -mllvm -enable-gvn-hoist   -mllvm -reduce-array-computations=3   -mllvm -global-vectorize-slp   -mllvm -vector-library=LIBMVEC   -mllvm -inline-threshold=1000   -flv-function-specialization   -funroll-loops   -Mrecursive   -z muldefs   -Kieee   -fno-finite-math-only   -DSPEC_OPENMP   -fopenmp   -fopenmp=libomp   -lomp   -lpthread   -ldl   -lmvec   -lamdlibm   -ljemalloc   -lflang 

Benchmarks using Fortran, C, and C++:

 -std=c++98   -flto   -Wl,-mllvm -Wl,-function-specialize   -Wl,-mllvm -Wl,-region-vectorize   -Wl,-mllvm -Wl,-vector-library=LIBMVEC   -Wl,-mllvm -Wl,-reduce-array-computations=3   -Wl,-mllvm -Wl,-suppress-fmas   -O3   -ffast-math   -march=znver2   -fstruct-layout=3   -mllvm -unroll-threshold=50   -fremap-arrays   -mllvm -function-specialize   -mllvm -enable-gvn-hoist   -mllvm -reduce-array-computations=3   -mllvm -global-vectorize-slp   -mllvm -vector-library=LIBMVEC   -mllvm -inline-threshold=1000   -flv-function-specialization   -mllvm -loop-unswitch-threshold=200000   -mllvm -unroll-threshold=100   -mllvm -enable-partial-unswitch   -funroll-loops   -Mrecursive   -z muldefs   -Kieee   -fno-finite-math-only   -DSPEC_OPENMP   -fopenmp   -fopenmp=libomp   -lomp   -lpthread   -ldl   -lmvec   -lamdlibm   -ljemalloc   -lflang 

Base Other Flags

C benchmarks:

 -Wno-return-type 

Fortran benchmarks:

 -Wno-return-type 

Benchmarks using both Fortran and C:

 -Wno-return-type 

Benchmarks using Fortran, C, and C++:

 -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:

 -flto   -Wl,-mllvm -Wl,-function-specialize   -Wl,-mllvm -Wl,-region-vectorize   -Wl,-mllvm -Wl,-vector-library=LIBMVEC   -Wl,-mllvm -Wl,-reduce-array-computations=3   -Ofast   -march=znver2   -mno-sse4a   -fstruct-layout=5   -mllvm -vectorize-memory-aggressively   -mllvm -function-specialize   -mllvm -enable-gvn-hoist   -mllvm -unroll-threshold=50   -fremap-arrays   -mllvm -vector-library=LIBMVEC   -mllvm -reduce-array-computations=3   -mllvm -global-vectorize-slp   -mllvm -inline-threshold=1000   -flv-function-specialization   -DSPEC_OPENMP   -fopenmp   -lmvec   -lamdlibm   -fopenmp=libomp   -lomp   -lpthread   -ldl   -ljemalloc   -lflang 

Fortran benchmarks:

603.bwaves_s:  basepeak = yes 
649.fotonik3d_s:  basepeak = yes 
654.roms_s:  -flto   -Wl,-mllvm -Wl,-function-specialize   -Wl,-mllvm -Wl,-region-vectorize   -Wl,-mllvm -Wl,-vector-library=LIBMVEC   -Wl,-mllvm -Wl,-reduce-array-computations=3   -Wl,-mllvm -Wl,-enable-X86-prefetching   -O3   -march=znver2   -funroll-loops   -Mrecursive   -mllvm -vector-library=LIBMVEC   -Kieee   -fno-finite-math-only   -DSPEC_OPENMP   -fopenmp   -fopenmp=libomp   -lomp   -lpthread   -ldl   -lmvec   -lamdlibm   -ljemalloc   -lflang 

Benchmarks using both Fortran and C:

621.wrf_s:  basepeak = yes 
627.cam4_s:  basepeak = yes 
628.pop2_s:  basepeak = yes 

Benchmarks using Fortran, C, and C++:

 -std=c++98   -flto   -Wl,-mllvm -Wl,-function-specialize   -Wl,-mllvm -Wl,-region-vectorize   -Wl,-mllvm -Wl,-vector-library=LIBMVEC   -Wl,-mllvm -Wl,-reduce-array-computations=3   -Ofast   -march=znver2   -mno-sse4a   -fstruct-layout=5   -mllvm -vectorize-memory-aggressively   -mllvm -function-specialize   -mllvm -enable-gvn-hoist   -mllvm -unroll-threshold=50   -fremap-arrays   -mllvm -vector-library=LIBMVEC   -mllvm -reduce-array-computations=3   -mllvm -global-vectorize-slp   -mllvm -inline-threshold=1000   -flv-function-specialization   -mllvm -unroll-threshold=100   -mllvm -enable-partial-unswitch   -mllvm -loop-unswitch-threshold=200000   -O3   -funroll-loops   -Mrecursive   -Kieee   -fno-finite-math-only   -DSPEC_OPENMP   -fopenmp   -fopenmp=libomp   -lomp   -lpthread   -ldl   -lmvec   -lamdlibm   -ljemalloc   -lflang 

Peak Other Flags

C benchmarks:

 -Wno-return-type 

Fortran benchmarks:

 -Wno-return-type 

Benchmarks using both Fortran and C:

 -Wno-return-type 

Benchmarks using Fortran, C, and C++:

 -Wno-return-type 

The flags files that were used to format this result can be browsed at
http://www.spec.org/cpu2017/flags/aocc200-flags-C4.html,
http://www.spec.org/cpu2017/flags/Supermicro-Platform-Settings-V1.2-Rome-revB.html.

You can also download the XML flags sources by saving the following links:
http://www.spec.org/cpu2017/flags/aocc200-flags-C4.xml,
http://www.spec.org/cpu2017/flags/Supermicro-Platform-Settings-V1.2-Rome-revB.xml.