fftw-1.2.0run

2 x Intel Xeon E5-2620 v2 testing with a ASUS Z9PE-D8 WS (5503 BIOS) and ASPEED on CentOS Stream 9 via the Phoronix Test Suite.

Compare your own system(s) to this result file with the Phoronix Test Suite by running the command: phoronix-test-suite benchmark 2407200-NE-FFTW120RU32
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  Test
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debug
July 13
  1 Hour, 54 Minutes
NoGVNO2
July 14
  57 Minutes
NoGVNO3
July 15
  57 Minutes
OptNoSimplO2
July 16
  17 Minutes
2 x Intel Xeon E5-2620 v2
July 17
  17 Minutes
OptNoSimplO3
July 19
  39 Minutes
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  50 Minutes

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debug

Kernel Notes: Transparent Huge Pages: always
Environment Notes: CXXFLAGS=-O2 CFLAGS=-O2
Compiler Notes: Optimized build with assertions; Built Apr 11 2013 (07:43:48); Default target: i386-pc-linux-gnu; Host CPU: i686
Processor Notes: Scaling Governor: intel_cpufreq conservative - CPU Microcode: 0x42e
Security Notes: gather_data_sampling: Not affected + itlb_multihit: KVM: Mitigation of VMX disabled + l1tf: Mitigation of PTE Inversion; VMX: conditional cache flushes SMT vulnerable + mds: Mitigation of Clear buffers; SMT vulnerable + meltdown: Mitigation of PTI + mmio_stale_data: Unknown: No mitigations + reg_file_data_sampling: Not affected + retbleed: Not affected + spec_rstack_overflow: Not affected + spec_store_bypass: Mitigation of SSB disabled via prctl + spectre_v1: Mitigation of usercopy/swapgs barriers and __user pointer sanitization + spectre_v2: Mitigation of Retpolines; IBPB: conditional; IBRS_FW; STIBP: conditional; RSB filling; PBRSB-eIBRS: Not affected; BHI: Not affected + srbds: Not affected + tsx_async_abort: Not affected

NoGVNO2

Kernel Notes: Transparent Huge Pages: always
Environment Notes: CXXFLAGS="-O2 -mllvm -enable-newgvn -mllvm -disable-gvn=true" CFLAGS="-O2 -mllvm -enable-newgvn -mllvm -disable-gvn=true"
Compiler Notes: Optimized build with assertions; Built Apr 11 2013 (07:43:48); Default target: i386-pc-linux-gnu; Host CPU: i686
Processor Notes: Scaling Governor: intel_cpufreq conservative - CPU Microcode: 0x42e
Security Notes: gather_data_sampling: Not affected + itlb_multihit: KVM: Mitigation of VMX disabled + l1tf: Mitigation of PTE Inversion; VMX: conditional cache flushes SMT vulnerable + mds: Mitigation of Clear buffers; SMT vulnerable + meltdown: Mitigation of PTI + mmio_stale_data: Unknown: No mitigations + reg_file_data_sampling: Not affected + retbleed: Not affected + spec_rstack_overflow: Not affected + spec_store_bypass: Mitigation of SSB disabled via prctl + spectre_v1: Mitigation of usercopy/swapgs barriers and __user pointer sanitization + spectre_v2: Mitigation of Retpolines; IBPB: conditional; IBRS_FW; STIBP: conditional; RSB filling; PBRSB-eIBRS: Not affected; BHI: Not affected + srbds: Not affected + tsx_async_abort: Not affected

NoGVNO3

Kernel Notes: Transparent Huge Pages: always
Environment Notes: CXXFLAGS="-O3 -mllvm -enable-newgvn -mllvm -disable-gvn=true" CFLAGS="-O3 -mllvm -enable-newgvn -mllvm -disable-gvn=true"
Compiler Notes: Optimized build with assertions; Built Apr 11 2013 (07:43:48); Default target: i386-pc-linux-gnu; Host CPU: i686
Processor Notes: Scaling Governor: intel_cpufreq conservative - CPU Microcode: 0x42e
Security Notes: gather_data_sampling: Not affected + itlb_multihit: KVM: Mitigation of VMX disabled + l1tf: Mitigation of PTE Inversion; VMX: conditional cache flushes SMT vulnerable + mds: Mitigation of Clear buffers; SMT vulnerable + meltdown: Mitigation of PTI + mmio_stale_data: Unknown: No mitigations + reg_file_data_sampling: Not affected + retbleed: Not affected + spec_rstack_overflow: Not affected + spec_store_bypass: Mitigation of SSB disabled via prctl + spectre_v1: Mitigation of usercopy/swapgs barriers and __user pointer sanitization + spectre_v2: Mitigation of Retpolines; IBPB: conditional; IBRS_FW; STIBP: conditional; RSB filling; PBRSB-eIBRS: Not affected; BHI: Not affected + srbds: Not affected + tsx_async_abort: Not affected

OptNoSimplO2

Kernel Notes: Transparent Huge Pages: always
Environment Notes: CXXFLAGS="-O2 -mllvm -enable-newgvn -mllvm -enable-phi-of-ops=false -mllvm -enable-newgvn-pre=false -mllvm -enable-newgvn-simpl=false" CFLAGS="-O2 -mllvm -enable-newgvn -mllvm -enable-phi-of-ops=false -mllvm -enable-newgvn-pre=false -mllvm -enable-newgvn-simpl=false"
Compiler Notes: Optimized build with assertions; Built Apr 11 2013 (07:43:48); Default target: i386-pc-linux-gnu; Host CPU: i686
Processor Notes: Scaling Governor: intel_cpufreq conservative - CPU Microcode: 0x42e
Security Notes: gather_data_sampling: Not affected + itlb_multihit: KVM: Mitigation of VMX disabled + l1tf: Mitigation of PTE Inversion; VMX: conditional cache flushes SMT vulnerable + mds: Mitigation of Clear buffers; SMT vulnerable + meltdown: Mitigation of PTI + mmio_stale_data: Unknown: No mitigations + reg_file_data_sampling: Not affected + retbleed: Not affected + spec_rstack_overflow: Not affected + spec_store_bypass: Mitigation of SSB disabled via prctl + spectre_v1: Mitigation of usercopy/swapgs barriers and __user pointer sanitization + spectre_v2: Mitigation of Retpolines; IBPB: conditional; IBRS_FW; STIBP: conditional; RSB filling; PBRSB-eIBRS: Not affected; BHI: Not affected + srbds: Not affected + tsx_async_abort: Not affected

2 x Intel Xeon E5-2620 v2

Processor: 2 x Intel Xeon E5-2620 v2 @ 2.60GHz (12 Cores / 24 Threads), Motherboard: ASUS Z9PE-D8 WS (5503 BIOS), Chipset: Intel Xeon E7 v2/Xeon, Memory: 32GB, Disk: 256GB Samsung SSD 850 + 2000GB Western Digital WD20EARX-00P, Graphics: ASPEED, Audio: Realtek ALC898, Network: 2 x Intel 82574L

OS: CentOS Stream 9, Kernel: 5.14.0-467.el9.x86_64 (x86_64), Display Server: X Server, Display Driver: NVIDIA, Compiler: GCC 11.4.1 20231218 + PGI Compiler 16.10-0 + LLVM 3.1 + CUDA 11.2, File-System: ext4, Screen Resolution: 1024x768

OptNoSimplO3

Processor: 2 x Intel Xeon E5-2620 v2 @ 2.60GHz (12 Cores / 24 Threads), Motherboard: ASUS Z9PE-D8 WS (5503 BIOS), Chipset: Intel Xeon E7 v2/Xeon, Memory: 32GB, Disk: 2000GB Western Digital WD20EARX-00P + 256GB Samsung SSD 850, Graphics: ASPEED, Audio: Realtek ALC898, Monitor: ASUS VW190, Network: 2 x Intel 82574L

OS: CentOS Stream 9, Kernel: 5.14.0-474.el9.x86_64 (x86_64), Display Server: X Server, Display Driver: NVIDIA, Compiler: GCC 11.4.1 20231218 + PGI Compiler 16.10-0 + LLVM 3.1 + CUDA 11.2, File-System: ext4, Screen Resolution: 1024x768

Kernel Notes: Transparent Huge Pages: always
Environment Notes: CXXFLAGS="-O3 -mllvm -enable-newgvn -mllvm -enable-phi-of-ops=false -mllvm -enable-newgvn-pre=false -mllvm -enable-newgvn-simpl=false" CFLAGS="-O3 -mllvm -enable-newgvn -mllvm -enable-phi-of-ops=false -mllvm -enable-newgvn-pre=false -mllvm -enable-newgvn-simpl=false"
Compiler Notes: Optimized build with assertions; Built Apr 11 2013 (07:43:48); Default target: i386-pc-linux-gnu; Host CPU: i686
Processor Notes: Scaling Governor: intel_cpufreq conservative - CPU Microcode: 0x42e
Security Notes: gather_data_sampling: Not affected + itlb_multihit: KVM: Mitigation of VMX disabled + l1tf: Mitigation of PTE Inversion; VMX: conditional cache flushes SMT vulnerable + mds: Mitigation of Clear buffers; SMT vulnerable + meltdown: Mitigation of PTI + mmio_stale_data: Unknown: No mitigations + reg_file_data_sampling: Not affected + retbleed: Not affected + spec_rstack_overflow: Not affected + spec_store_bypass: Mitigation of SSB disabled via prctl + spectre_v1: Mitigation of usercopy/swapgs barriers and __user pointer sanitization + spectre_v2: Mitigation of Retpolines; IBPB: conditional; IBRS_FW; STIBP: conditional; RSB filling; PBRSB-eIBRS: Not affected; BHI: Not affected + srbds: Not affected + tsx_async_abort: Not affected

fftw-1.2.0runProcessorMotherboardChipsetMemoryDiskGraphicsAudioNetworkMonitorOSKernelDisplay ServerDisplay DriverCompilerFile-SystemScreen ResolutiondebugNoGVNO2NoGVNO3OptNoSimplO22 x Intel Xeon E5-2620 v2OptNoSimplO32 x Intel Xeon E5-2620 v2 @ 2.60GHz (12 Cores / 24 Threads)ASUS Z9PE-D8 WS (5503 BIOS)Intel Xeon E7 v2/Xeon32GB256GB Samsung SSD 850 + 2000GB Western Digital WD20EARX-00PASPEEDRealtek ALC8982 x Intel 82574LCentOS Stream 95.14.0-467.el9.x86_64 (x86_64)X ServerNVIDIAGCC 11.4.1 20231218 + PGI Compiler 16.10-0 + LLVM 3.1 + CUDA 11.2ext41024x7682000GB Western Digital WD20EARX-00P + 256GB Samsung SSD 850ASUS VW1905.14.0-474.el9.x86_64 (x86_64)OpenBenchmarking.orgKernel Details- Transparent Huge Pages: alwaysEnvironment Details- debug: CXXFLAGS=-O2 CFLAGS=-O2- NoGVNO2: CXXFLAGS="-O2 -mllvm -enable-newgvn -mllvm -disable-gvn=true" CFLAGS="-O2 -mllvm -enable-newgvn -mllvm -disable-gvn=true"- NoGVNO3: CXXFLAGS="-O3 -mllvm -enable-newgvn -mllvm -disable-gvn=true" CFLAGS="-O3 -mllvm -enable-newgvn -mllvm -disable-gvn=true"- OptNoSimplO2: CXXFLAGS="-O2 -mllvm -enable-newgvn -mllvm -enable-phi-of-ops=false -mllvm -enable-newgvn-pre=false -mllvm -enable-newgvn-simpl=false" CFLAGS="-O2 -mllvm -enable-newgvn -mllvm -enable-phi-of-ops=false -mllvm -enable-newgvn-pre=false -mllvm -enable-newgvn-simpl=false"- 2 x Intel Xeon E5-2620 v2: CXXFLAGS="-O2 -mllvm -enable-newgvn -mllvm -enable-phi-of-ops=false -mllvm -enable-newgvn-pre=false -mllvm -enable-newgvn-simpl=false" CFLAGS="-O2 -mllvm -enable-newgvn -mllvm -enable-phi-of-ops=false -mllvm -enable-newgvn-pre=false -mllvm -enable-newgvn-simpl=false"- OptNoSimplO3: CXXFLAGS="-O3 -mllvm -enable-newgvn -mllvm -enable-phi-of-ops=false -mllvm -enable-newgvn-pre=false -mllvm -enable-newgvn-simpl=false" CFLAGS="-O3 -mllvm -enable-newgvn -mllvm -enable-phi-of-ops=false -mllvm -enable-newgvn-pre=false -mllvm -enable-newgvn-simpl=false"Compiler Details- Optimized build with assertions; Built Apr 11 2013 (07:43:48); Default target: i386-pc-linux-gnu; Host CPU: i686Processor Details- Scaling Governor: intel_cpufreq conservative - CPU Microcode: 0x42eSecurity Details- gather_data_sampling: Not affected + itlb_multihit: KVM: Mitigation of VMX disabled + l1tf: Mitigation of PTE Inversion; VMX: conditional cache flushes SMT vulnerable + mds: Mitigation of Clear buffers; SMT vulnerable + meltdown: Mitigation of PTI + mmio_stale_data: Unknown: No mitigations + reg_file_data_sampling: Not affected + retbleed: Not affected + spec_rstack_overflow: Not affected + spec_store_bypass: Mitigation of SSB disabled via prctl + spectre_v1: Mitigation of usercopy/swapgs barriers and __user pointer sanitization + spectre_v2: Mitigation of Retpolines; IBPB: conditional; IBRS_FW; STIBP: conditional; RSB filling; PBRSB-eIBRS: Not affected; BHI: Not affected + srbds: Not affected + tsx_async_abort: Not affected

debugNoGVNO2NoGVNO3OptNoSimplO22 x Intel Xeon E5-2620 v2OptNoSimplO3Result OverviewPhoronix Test Suite100%106%113%119%FFTWFFTWFFTWFFTWFFTWFFTWFFTWFFTWFFTWFFTWFFTWFFTWFFTWFFTWFFTWFFTWFFTWFFTWFFTWFFTWFFTWFFTWFFTWFFTWFFTWFFTWFFTWFFTWFFTWFFTWFFTWFFTWStock - 2D FFT Size 4096Float + SSE - 2D FFT Size 32Float + SSE - 2D FFT Size 4096Float + SSE - 2D FFT Size 64Float + SSE - 2D FFT Size 1024Float + SSE - 2D FFT Size 2048Float + SSE - 1D FFT Size 32Float + SSE - 2D FFT Size 128Float + SSE - 1D FFT Size 64Float + SSE - 1D FFT Size 1024Float + SSE - 1D FFT Size 128Float + SSE - 2D FFT Size 256Stock - 2D FFT Size 2048Stock - 2D FFT Size 1024Stock - 2D FFT Size 512Float + SSE - 1D FFT Size 256Stock - 1D FFT Size 32Stock - 1D FFT Size 1024Stock - 2D FFT Size 256Stock - 2D FFT Size 32Float + SSE - 1D FFT Size 512Float + SSE - 1D FFT Size 4096Stock - 1D FFT Size 128Stock - 2D FFT Size 64Stock - 1D FFT Size 512Float + SSE - 2D FFT Size 512Stock - 2D FFT Size 128Stock - 1D FFT Size 64Float + SSE - 1D FFT Size 2048Stock - 1D FFT Size 2048Stock - 1D FFT Size 256Stock - 1D FFT Size 4096

fftw-1.2.0runfftw: Stock - 1D FFT Size 32fftw: Stock - 1D FFT Size 64fftw: Stock - 2D FFT Size 32fftw: Stock - 2D FFT Size 64fftw: Stock - 1D FFT Size 128fftw: Stock - 1D FFT Size 256fftw: Stock - 1D FFT Size 512fftw: Stock - 2D FFT Size 128fftw: Stock - 2D FFT Size 256fftw: Stock - 2D FFT Size 512fftw: Stock - 1D FFT Size 1024fftw: Stock - 1D FFT Size 2048fftw: Stock - 1D FFT Size 4096fftw: Stock - 2D FFT Size 1024fftw: Stock - 2D FFT Size 2048fftw: Stock - 2D FFT Size 4096fftw: Float + SSE - 1D FFT Size 32fftw: Float + SSE - 1D FFT Size 64fftw: Float + SSE - 2D FFT Size 32fftw: Float + SSE - 2D FFT Size 64fftw: Float + SSE - 1D FFT Size 128fftw: Float + SSE - 1D FFT Size 256fftw: Float + SSE - 1D FFT Size 512fftw: Float + SSE - 2D FFT Size 128fftw: Float + SSE - 2D FFT Size 256fftw: Float + SSE - 2D FFT Size 512fftw: Float + SSE - 1D FFT Size 1024fftw: Float + SSE - 1D FFT Size 2048fftw: Float + SSE - 1D FFT Size 4096fftw: Float + SSE - 2D FFT Size 1024fftw: Float + SSE - 2D FFT Size 2048fftw: Float + SSE - 2D FFT Size 4096debugNoGVNO2NoGVNO3OptNoSimplO22 x Intel Xeon E5-2620 v2OptNoSimplO34998.54906.85218.74309.24420.64296.24320.43855.83660.63780.74285.64055.63914.83123.12706.62751.47287.09870.6164401498212702136791555211729114141187016266155131409110890.76459.16092.74967.14907.75211.54336.74414.64308.34344.43835.53686.73773.34282.94051.33895.43091.62723.72756.07311.4103501654815878130261398915560117431139911803161411546114186123167027.06717.95020.84897.95219.04289.84379.54290.54345.73861.63693.33797.54270.04055.03912.13107.22736.02738.97347.4104701652615952132061403215471119521151111750160591545714353122217077.76717.15008.94846.95127.94337.14358.84309.24340.13812.53671.33679.24233.74046.93909.53053.12662.02231.16805.0101311347113502127891365115289121881109411714156351554314243119036728.25603.75024.64899.55115.04336.64354.34316.14285.83848.03634.93736.54178.44046.43907.03048.52642.12239.36925.7102291339413636127401383115270122951108711715155171553914259119066665.95618.54898.04899.95144.64354.74364.24312.84314.43839.43616.93751.14198.14031.33917.43018.72664.32200.06912.79964.41341413740128501379515400125911113711778156301555114317119496731.15634.2OpenBenchmarking.org

FFTW

FFTW is a C subroutine library for computing the discrete Fourier transform (DFT) in one or more dimensions. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgMflops, More Is BetterFFTW 3.3.6Build: Stock - Size: 1D FFT Size 322 x Intel Xeon E5-2620 v2NoGVNO3OptNoSimplO2debugNoGVNO2OptNoSimplO311002200330044005500SE +/- 4.74, N = 3SE +/- 23.10, N = 3SE +/- 17.04, N = 3SE +/- 29.89, N = 3SE +/- 8.35, N = 3SE +/- 95.20, N = 135024.65020.85008.94998.54967.14898.0

OpenBenchmarking.orgMflops, More Is BetterFFTW 3.3.6Build: Stock - Size: 1D FFT Size 64NoGVNO2debugOptNoSimplO32 x Intel Xeon E5-2620 v2NoGVNO3OptNoSimplO211002200330044005500SE +/- 3.97, N = 3SE +/- 2.78, N = 3SE +/- 4.42, N = 3SE +/- 7.41, N = 3SE +/- 5.21, N = 3SE +/- 61.09, N = 34907.74906.84899.94899.54897.94846.9

OpenBenchmarking.orgMflops, More Is BetterFFTW 3.3.6Build: Stock - Size: 2D FFT Size 32NoGVNO3debugNoGVNO2OptNoSimplO3OptNoSimplO22 x Intel Xeon E5-2620 v211002200330044005500SE +/- 6.35, N = 3SE +/- 7.51, N = 3SE +/- 12.52, N = 3SE +/- 41.81, N = 3SE +/- 43.81, N = 3SE +/- 6.03, N = 35219.05218.75211.55144.65127.95115.0

OpenBenchmarking.orgMflops, More Is BetterFFTW 3.3.6Build: Stock - Size: 2D FFT Size 64OptNoSimplO3OptNoSimplO2NoGVNO22 x Intel Xeon E5-2620 v2debugNoGVNO39001800270036004500SE +/- 7.74, N = 3SE +/- 4.58, N = 3SE +/- 4.40, N = 3SE +/- 5.04, N = 3SE +/- 21.54, N = 3SE +/- 46.52, N = 44354.74337.14336.74336.64309.24289.8

OpenBenchmarking.orgMflops, More Is BetterFFTW 3.3.6Build: Stock - Size: 1D FFT Size 128debugNoGVNO2NoGVNO3OptNoSimplO3OptNoSimplO22 x Intel Xeon E5-2620 v29001800270036004500SE +/- 6.43, N = 3SE +/- 2.46, N = 3SE +/- 35.10, N = 9SE +/- 2.94, N = 3SE +/- 1.43, N = 3SE +/- 3.10, N = 34420.64414.64379.54364.24358.84354.3

OpenBenchmarking.orgMflops, More Is BetterFFTW 3.3.6Build: Stock - Size: 1D FFT Size 2562 x Intel Xeon E5-2620 v2OptNoSimplO3OptNoSimplO2NoGVNO2debugNoGVNO39001800270036004500SE +/- 27.37, N = 3SE +/- 24.49, N = 3SE +/- 1.60, N = 3SE +/- 1.57, N = 3SE +/- 1.72, N = 3SE +/- 15.53, N = 34316.14312.84309.24308.34296.24290.5

OpenBenchmarking.orgMflops, More Is BetterFFTW 3.3.6Build: Stock - Size: 1D FFT Size 512NoGVNO3NoGVNO2OptNoSimplO2debugOptNoSimplO32 x Intel Xeon E5-2620 v29001800270036004500SE +/- 15.04, N = 3SE +/- 12.50, N = 3SE +/- 2.84, N = 3SE +/- 16.10, N = 3SE +/- 11.47, N = 3SE +/- 22.16, N = 34345.74344.44340.14320.44314.44285.8

OpenBenchmarking.orgMflops, More Is BetterFFTW 3.3.6Build: Stock - Size: 2D FFT Size 128NoGVNO3debug2 x Intel Xeon E5-2620 v2OptNoSimplO3NoGVNO2OptNoSimplO28001600240032004000SE +/- 3.71, N = 3SE +/- 4.06, N = 3SE +/- 9.25, N = 3SE +/- 21.66, N = 3SE +/- 7.88, N = 3SE +/- 31.53, N = 33861.63855.83848.03839.43835.53812.5

OpenBenchmarking.orgMflops, More Is BetterFFTW 3.3.6Build: Stock - Size: 2D FFT Size 256NoGVNO3NoGVNO2OptNoSimplO2debug2 x Intel Xeon E5-2620 v2OptNoSimplO38001600240032004000SE +/- 7.11, N = 3SE +/- 13.35, N = 3SE +/- 17.09, N = 3SE +/- 23.34, N = 3SE +/- 23.89, N = 3SE +/- 37.88, N = 33693.33686.73671.33660.63634.93616.9

OpenBenchmarking.orgMflops, More Is BetterFFTW 3.3.6Build: Stock - Size: 2D FFT Size 512NoGVNO3debugNoGVNO2OptNoSimplO32 x Intel Xeon E5-2620 v2OptNoSimplO28001600240032004000SE +/- 10.93, N = 3SE +/- 10.97, N = 3SE +/- 13.13, N = 3SE +/- 14.36, N = 3SE +/- 41.40, N = 5SE +/- 38.03, N = 53797.53780.73773.33751.13736.53679.2

OpenBenchmarking.orgMflops, More Is BetterFFTW 3.3.6Build: Stock - Size: 1D FFT Size 1024debugNoGVNO2NoGVNO3OptNoSimplO2OptNoSimplO32 x Intel Xeon E5-2620 v29001800270036004500SE +/- 5.54, N = 3SE +/- 2.87, N = 3SE +/- 19.30, N = 3SE +/- 8.01, N = 3SE +/- 25.83, N = 3SE +/- 59.35, N = 34285.64282.94270.04233.74198.14178.4

OpenBenchmarking.orgMflops, More Is BetterFFTW 3.3.6Build: Stock - Size: 1D FFT Size 2048debugNoGVNO3NoGVNO2OptNoSimplO22 x Intel Xeon E5-2620 v2OptNoSimplO39001800270036004500SE +/- 6.96, N = 3SE +/- 8.12, N = 3SE +/- 6.84, N = 3SE +/- 18.65, N = 3SE +/- 11.79, N = 3SE +/- 6.58, N = 34055.64055.04051.34046.94046.44031.3

OpenBenchmarking.orgMflops, More Is BetterFFTW 3.3.6Build: Stock - Size: 1D FFT Size 4096OptNoSimplO3debugNoGVNO3OptNoSimplO22 x Intel Xeon E5-2620 v2NoGVNO28001600240032004000SE +/- 13.95, N = 3SE +/- 17.36, N = 3SE +/- 13.90, N = 3SE +/- 1.10, N = 3SE +/- 8.30, N = 3SE +/- 8.63, N = 33917.43914.83912.13909.53907.03895.4

OpenBenchmarking.orgMflops, More Is BetterFFTW 3.3.6Build: Stock - Size: 2D FFT Size 1024debugNoGVNO3NoGVNO2OptNoSimplO22 x Intel Xeon E5-2620 v2OptNoSimplO37001400210028003500SE +/- 15.08, N = 3SE +/- 38.36, N = 3SE +/- 13.41, N = 3SE +/- 12.20, N = 3SE +/- 13.57, N = 3SE +/- 8.28, N = 33123.13107.23091.63053.13048.53018.7

OpenBenchmarking.orgMflops, More Is BetterFFTW 3.3.6Build: Stock - Size: 2D FFT Size 2048NoGVNO3NoGVNO2debugOptNoSimplO3OptNoSimplO22 x Intel Xeon E5-2620 v26001200180024003000SE +/- 12.56, N = 3SE +/- 8.21, N = 3SE +/- 3.24, N = 3SE +/- 6.56, N = 3SE +/- 6.15, N = 3SE +/- 5.49, N = 32736.02723.72706.62664.32662.02642.1

OpenBenchmarking.orgMflops, More Is BetterFFTW 3.3.6Build: Stock - Size: 2D FFT Size 4096NoGVNO2debugNoGVNO32 x Intel Xeon E5-2620 v2OptNoSimplO2OptNoSimplO36001200180024003000SE +/- 14.23, N = 3SE +/- 5.74, N = 3SE +/- 16.56, N = 3SE +/- 8.09, N = 3SE +/- 16.21, N = 3SE +/- 21.99, N = 152756.02751.42738.92239.32231.12200.0

OpenBenchmarking.orgMflops, More Is BetterFFTW 3.3.6Build: Float + SSE - Size: 1D FFT Size 32NoGVNO3NoGVNO2debug2 x Intel Xeon E5-2620 v2OptNoSimplO3OptNoSimplO216003200480064008000SE +/- 35.65, N = 3SE +/- 79.17, N = 3SE +/- 5.79, N = 3SE +/- 64.34, N = 15SE +/- 71.46, N = 15SE +/- 24.17, N = 37347.47311.47287.06925.76912.76805.0

OpenBenchmarking.orgMflops, More Is BetterFFTW 3.3.6Build: Float + SSE - Size: 1D FFT Size 64NoGVNO3NoGVNO22 x Intel Xeon E5-2620 v2OptNoSimplO2OptNoSimplO3debug2K4K6K8K10KSE +/- 114.62, N = 3SE +/- 99.10, N = 3SE +/- 54.50, N = 3SE +/- 33.87, N = 3SE +/- 98.25, N = 3SE +/- 172.96, N = 1510470.010350.010229.010131.09964.49870.6

OpenBenchmarking.orgMflops, More Is BetterFFTW 3.3.6Build: Float + SSE - Size: 2D FFT Size 32NoGVNO2NoGVNO3debugOptNoSimplO2OptNoSimplO32 x Intel Xeon E5-2620 v24K8K12K16K20KSE +/- 136.41, N = 3SE +/- 139.56, N = 3SE +/- 98.77, N = 3SE +/- 131.37, N = 3SE +/- 102.53, N = 3SE +/- 107.35, N = 3165481652616440134711341413394

OpenBenchmarking.orgMflops, More Is BetterFFTW 3.3.6Build: Float + SSE - Size: 2D FFT Size 64NoGVNO3NoGVNO2debugOptNoSimplO32 x Intel Xeon E5-2620 v2OptNoSimplO23K6K9K12K15KSE +/- 133.36, N = 3SE +/- 70.08, N = 3SE +/- 26.91, N = 3SE +/- 55.77, N = 3SE +/- 70.91, N = 3SE +/- 41.97, N = 3159521587814982137401363613502

OpenBenchmarking.orgMflops, More Is BetterFFTW 3.3.6Build: Float + SSE - Size: 1D FFT Size 128NoGVNO3NoGVNO2OptNoSimplO3OptNoSimplO22 x Intel Xeon E5-2620 v2debug3K6K9K12K15KSE +/- 33.80, N = 3SE +/- 160.95, N = 3SE +/- 80.49, N = 3SE +/- 84.00, N = 3SE +/- 136.77, N = 3SE +/- 136.03, N = 15132061302612850127891274012702

OpenBenchmarking.orgMflops, More Is BetterFFTW 3.3.6Build: Float + SSE - Size: 1D FFT Size 256NoGVNO3NoGVNO22 x Intel Xeon E5-2620 v2OptNoSimplO3debugOptNoSimplO23K6K9K12K15KSE +/- 28.45, N = 3SE +/- 30.75, N = 3SE +/- 67.57, N = 3SE +/- 58.29, N = 3SE +/- 98.34, N = 3SE +/- 68.09, N = 3140321398913831137951367913651

OpenBenchmarking.orgMflops, More Is BetterFFTW 3.3.6Build: Float + SSE - Size: 1D FFT Size 512NoGVNO2debugNoGVNO3OptNoSimplO3OptNoSimplO22 x Intel Xeon E5-2620 v23K6K9K12K15KSE +/- 81.91, N = 3SE +/- 123.58, N = 3SE +/- 120.34, N = 3SE +/- 66.70, N = 3SE +/- 157.18, N = 3SE +/- 127.67, N = 3155601555215471154001528915270

OpenBenchmarking.orgMflops, More Is BetterFFTW 3.3.6Build: Float + SSE - Size: 2D FFT Size 128OptNoSimplO32 x Intel Xeon E5-2620 v2OptNoSimplO2NoGVNO3NoGVNO2debug3K6K9K12K15KSE +/- 50.90, N = 3SE +/- 82.96, N = 15SE +/- 113.85, N = 15SE +/- 92.80, N = 3SE +/- 95.52, N = 3SE +/- 84.15, N = 12125911229512188119521174311729

OpenBenchmarking.orgMflops, More Is BetterFFTW 3.3.6Build: Float + SSE - Size: 2D FFT Size 256NoGVNO3debugNoGVNO2OptNoSimplO3OptNoSimplO22 x Intel Xeon E5-2620 v22K4K6K8K10KSE +/- 40.95, N = 3SE +/- 86.71, N = 3SE +/- 85.30, N = 3SE +/- 21.39, N = 3SE +/- 115.75, N = 3SE +/- 119.21, N = 3115111141411399111371109411087

OpenBenchmarking.orgMflops, More Is BetterFFTW 3.3.6Build: Float + SSE - Size: 2D FFT Size 512debugNoGVNO2OptNoSimplO3NoGVNO32 x Intel Xeon E5-2620 v2OptNoSimplO23K6K9K12K15KSE +/- 97.11, N = 3SE +/- 84.01, N = 3SE +/- 61.50, N = 3SE +/- 19.97, N = 3SE +/- 37.37, N = 3SE +/- 64.54, N = 3118701180311778117501171511714

OpenBenchmarking.orgMflops, More Is BetterFFTW 3.3.6Build: Float + SSE - Size: 1D FFT Size 1024debugNoGVNO2NoGVNO3OptNoSimplO2OptNoSimplO32 x Intel Xeon E5-2620 v23K6K9K12K15KSE +/- 80.85, N = 3SE +/- 67.72, N = 3SE +/- 80.68, N = 3SE +/- 43.66, N = 3SE +/- 32.22, N = 3SE +/- 112.78, N = 3162661614116059156351563015517

OpenBenchmarking.orgMflops, More Is BetterFFTW 3.3.6Build: Float + SSE - Size: 1D FFT Size 2048OptNoSimplO3OptNoSimplO22 x Intel Xeon E5-2620 v2debugNoGVNO2NoGVNO33K6K9K12K15KSE +/- 15.63, N = 3SE +/- 24.95, N = 3SE +/- 107.49, N = 3SE +/- 41.31, N = 3SE +/- 75.96, N = 3SE +/- 78.24, N = 3155511554315539155131546115457

OpenBenchmarking.orgMflops, More Is BetterFFTW 3.3.6Build: Float + SSE - Size: 1D FFT Size 4096NoGVNO3OptNoSimplO32 x Intel Xeon E5-2620 v2OptNoSimplO2NoGVNO2debug3K6K9K12K15KSE +/- 135.86, N = 3SE +/- 55.79, N = 3SE +/- 82.03, N = 3SE +/- 19.46, N = 3SE +/- 80.21, N = 3SE +/- 193.73, N = 3143531431714259142431418614091

OpenBenchmarking.orgMflops, More Is BetterFFTW 3.3.6Build: Float + SSE - Size: 2D FFT Size 1024NoGVNO2NoGVNO3OptNoSimplO32 x Intel Xeon E5-2620 v2OptNoSimplO2debug3K6K9K12K15KSE +/- 81.04, N = 3SE +/- 76.28, N = 3SE +/- 58.86, N = 3SE +/- 40.01, N = 3SE +/- 124.86, N = 3SE +/- 644.68, N = 1212316.012221.011949.011906.011903.010890.7

OpenBenchmarking.orgMflops, More Is BetterFFTW 3.3.6Build: Float + SSE - Size: 2D FFT Size 2048NoGVNO3NoGVNO2OptNoSimplO3OptNoSimplO22 x Intel Xeon E5-2620 v2debug15003000450060007500SE +/- 8.17, N = 3SE +/- 11.97, N = 3SE +/- 25.37, N = 3SE +/- 33.67, N = 3SE +/- 41.03, N = 3SE +/- 44.49, N = 37077.77027.06731.16728.26665.96459.1

OpenBenchmarking.orgMflops, More Is BetterFFTW 3.3.6Build: Float + SSE - Size: 2D FFT Size 4096NoGVNO2NoGVNO3debugOptNoSimplO32 x Intel Xeon E5-2620 v2OptNoSimplO214002800420056007000SE +/- 13.11, N = 3SE +/- 21.46, N = 3SE +/- 262.37, N = 9SE +/- 7.27, N = 3SE +/- 8.82, N = 3SE +/- 4.28, N = 36717.96717.16092.75634.25618.55603.7

debug

Kernel Notes: Transparent Huge Pages: always
Environment Notes: CXXFLAGS=-O2 CFLAGS=-O2
Compiler Notes: Optimized build with assertions; Built Apr 11 2013 (07:43:48); Default target: i386-pc-linux-gnu; Host CPU: i686
Processor Notes: Scaling Governor: intel_cpufreq conservative - CPU Microcode: 0x42e
Security Notes: gather_data_sampling: Not affected + itlb_multihit: KVM: Mitigation of VMX disabled + l1tf: Mitigation of PTE Inversion; VMX: conditional cache flushes SMT vulnerable + mds: Mitigation of Clear buffers; SMT vulnerable + meltdown: Mitigation of PTI + mmio_stale_data: Unknown: No mitigations + reg_file_data_sampling: Not affected + retbleed: Not affected + spec_rstack_overflow: Not affected + spec_store_bypass: Mitigation of SSB disabled via prctl + spectre_v1: Mitigation of usercopy/swapgs barriers and __user pointer sanitization + spectre_v2: Mitigation of Retpolines; IBPB: conditional; IBRS_FW; STIBP: conditional; RSB filling; PBRSB-eIBRS: Not affected; BHI: Not affected + srbds: Not affected + tsx_async_abort: Not affected

Testing initiated at 13 July 2024 17:47 by user .

NoGVNO2

Kernel Notes: Transparent Huge Pages: always
Environment Notes: CXXFLAGS="-O2 -mllvm -enable-newgvn -mllvm -disable-gvn=true" CFLAGS="-O2 -mllvm -enable-newgvn -mllvm -disable-gvn=true"
Compiler Notes: Optimized build with assertions; Built Apr 11 2013 (07:43:48); Default target: i386-pc-linux-gnu; Host CPU: i686
Processor Notes: Scaling Governor: intel_cpufreq conservative - CPU Microcode: 0x42e
Security Notes: gather_data_sampling: Not affected + itlb_multihit: KVM: Mitigation of VMX disabled + l1tf: Mitigation of PTE Inversion; VMX: conditional cache flushes SMT vulnerable + mds: Mitigation of Clear buffers; SMT vulnerable + meltdown: Mitigation of PTI + mmio_stale_data: Unknown: No mitigations + reg_file_data_sampling: Not affected + retbleed: Not affected + spec_rstack_overflow: Not affected + spec_store_bypass: Mitigation of SSB disabled via prctl + spectre_v1: Mitigation of usercopy/swapgs barriers and __user pointer sanitization + spectre_v2: Mitigation of Retpolines; IBPB: conditional; IBRS_FW; STIBP: conditional; RSB filling; PBRSB-eIBRS: Not affected; BHI: Not affected + srbds: Not affected + tsx_async_abort: Not affected

Testing initiated at 14 July 2024 21:56 by user .

NoGVNO3

Kernel Notes: Transparent Huge Pages: always
Environment Notes: CXXFLAGS="-O3 -mllvm -enable-newgvn -mllvm -disable-gvn=true" CFLAGS="-O3 -mllvm -enable-newgvn -mllvm -disable-gvn=true"
Compiler Notes: Optimized build with assertions; Built Apr 11 2013 (07:43:48); Default target: i386-pc-linux-gnu; Host CPU: i686
Processor Notes: Scaling Governor: intel_cpufreq conservative - CPU Microcode: 0x42e
Security Notes: gather_data_sampling: Not affected + itlb_multihit: KVM: Mitigation of VMX disabled + l1tf: Mitigation of PTE Inversion; VMX: conditional cache flushes SMT vulnerable + mds: Mitigation of Clear buffers; SMT vulnerable + meltdown: Mitigation of PTI + mmio_stale_data: Unknown: No mitigations + reg_file_data_sampling: Not affected + retbleed: Not affected + spec_rstack_overflow: Not affected + spec_store_bypass: Mitigation of SSB disabled via prctl + spectre_v1: Mitigation of usercopy/swapgs barriers and __user pointer sanitization + spectre_v2: Mitigation of Retpolines; IBPB: conditional; IBRS_FW; STIBP: conditional; RSB filling; PBRSB-eIBRS: Not affected; BHI: Not affected + srbds: Not affected + tsx_async_abort: Not affected

Testing initiated at 15 July 2024 15:34 by user .

OptNoSimplO2

Kernel Notes: Transparent Huge Pages: always
Environment Notes: CXXFLAGS="-O2 -mllvm -enable-newgvn -mllvm -enable-phi-of-ops=false -mllvm -enable-newgvn-pre=false -mllvm -enable-newgvn-simpl=false" CFLAGS="-O2 -mllvm -enable-newgvn -mllvm -enable-phi-of-ops=false -mllvm -enable-newgvn-pre=false -mllvm -enable-newgvn-simpl=false"
Compiler Notes: Optimized build with assertions; Built Apr 11 2013 (07:43:48); Default target: i386-pc-linux-gnu; Host CPU: i686
Processor Notes: Scaling Governor: intel_cpufreq conservative - CPU Microcode: 0x42e
Security Notes: gather_data_sampling: Not affected + itlb_multihit: KVM: Mitigation of VMX disabled + l1tf: Mitigation of PTE Inversion; VMX: conditional cache flushes SMT vulnerable + mds: Mitigation of Clear buffers; SMT vulnerable + meltdown: Mitigation of PTI + mmio_stale_data: Unknown: No mitigations + reg_file_data_sampling: Not affected + retbleed: Not affected + spec_rstack_overflow: Not affected + spec_store_bypass: Mitigation of SSB disabled via prctl + spectre_v1: Mitigation of usercopy/swapgs barriers and __user pointer sanitization + spectre_v2: Mitigation of Retpolines; IBPB: conditional; IBRS_FW; STIBP: conditional; RSB filling; PBRSB-eIBRS: Not affected; BHI: Not affected + srbds: Not affected + tsx_async_abort: Not affected

Testing initiated at 16 July 2024 13:54 by user .

2 x Intel Xeon E5-2620 v2

Processor: 2 x Intel Xeon E5-2620 v2 @ 2.60GHz (12 Cores / 24 Threads), Motherboard: ASUS Z9PE-D8 WS (5503 BIOS), Chipset: Intel Xeon E7 v2/Xeon, Memory: 32GB, Disk: 256GB Samsung SSD 850 + 2000GB Western Digital WD20EARX-00P, Graphics: ASPEED, Audio: Realtek ALC898, Network: 2 x Intel 82574L

OS: CentOS Stream 9, Kernel: 5.14.0-467.el9.x86_64 (x86_64), Display Server: X Server, Display Driver: NVIDIA, Compiler: GCC 11.4.1 20231218 + PGI Compiler 16.10-0 + LLVM 3.1 + CUDA 11.2, File-System: ext4, Screen Resolution: 1024x768

Kernel Notes: Transparent Huge Pages: always
Environment Notes: CXXFLAGS="-O2 -mllvm -enable-newgvn -mllvm -enable-phi-of-ops=false -mllvm -enable-newgvn-pre=false -mllvm -enable-newgvn-simpl=false" CFLAGS="-O2 -mllvm -enable-newgvn -mllvm -enable-phi-of-ops=false -mllvm -enable-newgvn-pre=false -mllvm -enable-newgvn-simpl=false"
Compiler Notes: Optimized build with assertions; Built Apr 11 2013 (07:43:48); Default target: i386-pc-linux-gnu; Host CPU: i686
Processor Notes: Scaling Governor: intel_cpufreq conservative - CPU Microcode: 0x42e
Security Notes: gather_data_sampling: Not affected + itlb_multihit: KVM: Mitigation of VMX disabled + l1tf: Mitigation of PTE Inversion; VMX: conditional cache flushes SMT vulnerable + mds: Mitigation of Clear buffers; SMT vulnerable + meltdown: Mitigation of PTI + mmio_stale_data: Unknown: No mitigations + reg_file_data_sampling: Not affected + retbleed: Not affected + spec_rstack_overflow: Not affected + spec_store_bypass: Mitigation of SSB disabled via prctl + spectre_v1: Mitigation of usercopy/swapgs barriers and __user pointer sanitization + spectre_v2: Mitigation of Retpolines; IBPB: conditional; IBRS_FW; STIBP: conditional; RSB filling; PBRSB-eIBRS: Not affected; BHI: Not affected + srbds: Not affected + tsx_async_abort: Not affected

Testing initiated at 17 July 2024 03:06 by user .

OptNoSimplO3

Processor: 2 x Intel Xeon E5-2620 v2 @ 2.60GHz (12 Cores / 24 Threads), Motherboard: ASUS Z9PE-D8 WS (5503 BIOS), Chipset: Intel Xeon E7 v2/Xeon, Memory: 32GB, Disk: 2000GB Western Digital WD20EARX-00P + 256GB Samsung SSD 850, Graphics: ASPEED, Audio: Realtek ALC898, Monitor: ASUS VW190, Network: 2 x Intel 82574L

OS: CentOS Stream 9, Kernel: 5.14.0-474.el9.x86_64 (x86_64), Display Server: X Server, Display Driver: NVIDIA, Compiler: GCC 11.4.1 20231218 + PGI Compiler 16.10-0 + LLVM 3.1 + CUDA 11.2, File-System: ext4, Screen Resolution: 1024x768

Kernel Notes: Transparent Huge Pages: always
Environment Notes: CXXFLAGS="-O3 -mllvm -enable-newgvn -mllvm -enable-phi-of-ops=false -mllvm -enable-newgvn-pre=false -mllvm -enable-newgvn-simpl=false" CFLAGS="-O3 -mllvm -enable-newgvn -mllvm -enable-phi-of-ops=false -mllvm -enable-newgvn-pre=false -mllvm -enable-newgvn-simpl=false"
Compiler Notes: Optimized build with assertions; Built Apr 11 2013 (07:43:48); Default target: i386-pc-linux-gnu; Host CPU: i686
Processor Notes: Scaling Governor: intel_cpufreq conservative - CPU Microcode: 0x42e
Security Notes: gather_data_sampling: Not affected + itlb_multihit: KVM: Mitigation of VMX disabled + l1tf: Mitigation of PTE Inversion; VMX: conditional cache flushes SMT vulnerable + mds: Mitigation of Clear buffers; SMT vulnerable + meltdown: Mitigation of PTI + mmio_stale_data: Unknown: No mitigations + reg_file_data_sampling: Not affected + retbleed: Not affected + spec_rstack_overflow: Not affected + spec_store_bypass: Mitigation of SSB disabled via prctl + spectre_v1: Mitigation of usercopy/swapgs barriers and __user pointer sanitization + spectre_v2: Mitigation of Retpolines; IBPB: conditional; IBRS_FW; STIBP: conditional; RSB filling; PBRSB-eIBRS: Not affected; BHI: Not affected + srbds: Not affected + tsx_async_abort: Not affected

Testing initiated at 19 July 2024 04:22 by user .