Implementation notes: amd64, gpu, crypto_kem/dags3

Computer: gpu
Architecture: amd64
CPU ID: GenuineIntel-000206d7-bfebfbff
SUPERCOP version: 20190816
Operation: crypto_kem
Primitive: dags3
TimeObject sizeTest sizeImplementationCompilerBenchmark dateSUPERCOP version
10905047463883 0 4217913 816 1600refclang_-O3_-fomit-frame-pointer_-Qunused-arguments2019100820190816
16584703557135 0 4212497 816 1600refclang_-mcpu=cortex-a9_-mfpu=neon_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments2019100820190816
166422237116062 0 4268913 816 1952refclang_-O3_-fwrapv_-march=native_-fomit-frame-pointer_-Qunused-arguments2019100820190816
16724348757135 0 4212497 816 1600refclang_-mcpu=cortex-a8_-mfpu=neon_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments2019100820190816
16997063757135 0 4212497 816 1600refclang_-mcpu=native_-mfpu=neon_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments2019100820190816
170805174116062 0 4268913 816 1952refclang_-march=native_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments2019100820190816
175568190? ? ?? ? ?refgcc_-fno-schedule-insns_-O_-fomit-frame-pointer2019100820190816
175850688? ? ?? ? ?refgcc_-m64_-march=k8_-O_-fomit-frame-pointer2019100820190816
17623264285186 0 4237361 816 1952refclang_-O3_-fwrapv_-mavx_-maes_-mpclmul_-fomit-frame-pointer_-Qunused-arguments2019100820190816
17720281885186 0 4237361 816 1952refclang_-O3_-fwrapv_-mavx_-fomit-frame-pointer_-Qunused-arguments2019100820190816
177539622? ? ?? ? ?refgcc_-m64_-march=barcelona_-O_-fomit-frame-pointer2019100820190816
177894153? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=k8_-O_-fomit-frame-pointer2019100820190816
178524120? ? ?? ? ?refgcc_-funroll-loops_-m64_-O_-fomit-frame-pointer2019100820190816
178638576? ? ?? ? ?refgcc_-m64_-march=core2_-msse4_-O_-fomit-frame-pointer2019100820190816
179638605? ? ?? ? ?refgcc_-m64_-march=corei7-avx_-O3_-fomit-frame-pointer2019100820190816
179651772? ? ?? ? ?refgcc_-funroll-loops_-march=k8_-O3_-fomit-frame-pointer2019100820190816
179965128? ? ?? ? ?refgcc_-funroll-loops_-march=barcelona_-O3_-fomit-frame-pointer2019100820190816
180633006? ? ?? ? ?refgcc_-m64_-march=corei7_-O_-fomit-frame-pointer2019100820190816
181048602? ? ?? ? ?refgcc_-m64_-march=core-avx-i_-O_-fomit-frame-pointer2019100820190816
181217712? ? ?? ? ?refgcc_-m64_-march=core2_-O3_-fomit-frame-pointer2019100820190816
181351269? ? ?? ? ?refgcc_-funroll-loops_-m64_-O3_-fomit-frame-pointer2019100820190816
181374885? ? ?? ? ?refgcc_-m64_-march=native_-mtune=native_-O3_-fomit-frame-pointer2019100820190816
181444971? ? ?? ? ?refgcc_-funroll-loops_-O2_-fomit-frame-pointer2019100820190816
181513149? ? ?? ? ?refgcc_-m64_-march=corei7-avx_-O2_-fomit-frame-pointer2019100820190816
181824501? ? ?? ? ?refgcc_-funroll-loops_-march=k8_-O_-fomit-frame-pointer2019100820190816
182549790? ? ?? ? ?refgcc_-march=k8_-O2_-fomit-frame-pointer2019100820190816
182578056? ? ?? ? ?refgcc_-funroll-loops_-O_-fomit-frame-pointer2019100820190816
182608110? ? ?? ? ?refgcc_-funroll-loops_-fno-schedule-insns_-O_-fomit-frame-pointer2019100820190816
182911815? ? ?? ? ?refgcc_-O_-fomit-frame-pointer2019100820190816
183093423? ? ?? ? ?refgcc_-march=barcelona_-O_-fomit-frame-pointer2019100820190816
183199203? ? ?? ? ?refgcc_-funroll-loops_-march=barcelona_-O_-fomit-frame-pointer2019100820190816
183231219? ? ?? ? ?refgcc_-m64_-march=corei7-avx_-O_-fomit-frame-pointer2019100820190816
183266091? ? ?? ? ?refgcc_-m64_-march=core2_-msse4.1_-O_-fomit-frame-pointer2019100820190816
183762702? ? ?? ? ?refgcc_-m64_-march=core2_-O_-fomit-frame-pointer2019100820190816
183887394? ? ?? ? ?refgcc_-fno-schedule-insns_-O3_-fomit-frame-pointer2019100820190816
183939141? ? ?? ? ?refgcc_-march=k8_-O_-fomit-frame-pointer2019100820190816
184086996? ? ?? ? ?refgcc_-m64_-march=core2_-msse4_-O3_-fomit-frame-pointer2019100820190816
184364928? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=barcelona_-O2_-fomit-frame-pointer2019100820190816
185120949? ? ?? ? ?refgcc_-funroll-loops_-fno-schedule-insns_-O2_-fomit-frame-pointer2019100820190816
185218725? ? ?? ? ?refgcc_-funroll-loops_-fno-schedule-insns_-O3_-fomit-frame-pointer2019100820190816
185529336? ? ?? ? ?refgcc_-funroll-loops_-march=barcelona_-O2_-fomit-frame-pointer2019100820190816
185933370? ? ?? ? ?refgcc_-march=native_-mtune=native_-O_-fomit-frame-pointer_-fwrapv2019100820190816
186237849? ? ?? ? ?refgcc_-m64_-march=native_-mtune=native_-O_-fomit-frame-pointer2019100820190816
186602541? ? ?? ? ?refgcc_-m64_-march=k8_-O3_-fomit-frame-pointer2019100820190816
186919224? ? ?? ? ?refgcc_-march=k8_-O3_-fomit-frame-pointer2019100820190816
186927837? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=barcelona_-O_-fomit-frame-pointer2019100820190816
187077345? ? ?? ? ?refgcc_-m64_-march=corei7_-O3_-fomit-frame-pointer2019100820190816
187386126? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=barcelona_-O3_-fomit-frame-pointer2019100820190816
187439073? ? ?? ? ?refgcc_-funroll-loops_-march=k8_-O2_-fomit-frame-pointer2019100820190816
187849233? ? ?? ? ?refgcc_-march=barcelona_-O3_-fomit-frame-pointer2019100820190816
188043933? ? ?? ? ?refgcc_-m64_-march=core2_-O2_-fomit-frame-pointer2019100820190816
188225226? ? ?? ? ?refgcc_-march=native_-mtune=native_-O2_-fomit-frame-pointer_-fwrapv2019100820190816
188266710? ? ?? ? ?refgcc_-m64_-march=core2_-msse4.1_-O3_-fomit-frame-pointer2019100820190816
188276817? ? ?? ? ?refgcc_-march=barcelona_-O2_-fomit-frame-pointer2019100820190816
188330097? ? ?? ? ?refgcc_-funroll-loops_-O3_-fomit-frame-pointer2019100820190816
188554860? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=k8_-O3_-fomit-frame-pointer2019100820190816
188571300? ? ?? ? ?refgcc_-m64_-O_-fomit-frame-pointer2019100820190816
188755563? ? ?? ? ?refgcc_-m64_-O3_-fomit-frame-pointer2019100820190816
189383016? ? ?? ? ?refgcc_-m64_-march=native_-mtune=native_-O2_-fomit-frame-pointer2019100820190816
190085382? ? ?? ? ?refgcc_-m64_-march=barcelona_-O2_-fomit-frame-pointer2019100820190816
190263153? ? ?? ? ?refgcc_-m64_-march=core2_-msse4_-O2_-fomit-frame-pointer2019100820190816
190503963? ? ?? ? ?refgcc_-m64_-march=core-avx-i_-O2_-fomit-frame-pointer2019100820190816
190617879? ? ?? ? ?refgcc_-m64_-march=corei7_-O2_-fomit-frame-pointer2019100820190816
191011086? ? ?? ? ?refgcc_-O2_-fomit-frame-pointer2019100820190816
191668437? ? ?? ? ?refgcc_-m64_-march=barcelona_-O3_-fomit-frame-pointer2019100820190816
191934411? ? ?? ? ?refgcc_-m64_-march=core-avx-i_-O3_-fomit-frame-pointer2019100820190816
192041310? ? ?? ? ?refgcc_-funroll-loops_-m64_-O2_-fomit-frame-pointer2019100820190816
192932937? ? ?? ? ?refgcc_-m64_-O2_-fomit-frame-pointer2019100820190816
193442718? ? ?? ? ?refgcc_-march=nocona_-O_-fomit-frame-pointer2019100820190816
194008344? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=k8_-O2_-fomit-frame-pointer2019100820190816
194570151? ? ?? ? ?refgcc_-march=native_-mtune=native_-O3_-fomit-frame-pointer_-fwrapv2019100820190816
194815608? ? ?? ? ?refgcc_-m64_-march=core2_-msse4.1_-O2_-fomit-frame-pointer2019100820190816
194874963? ? ?? ? ?refgcc_-m64_-march=nocona_-O_-fomit-frame-pointer2019100820190816
195755751? ? ?? ? ?refgcc_-fno-schedule-insns_-O2_-fomit-frame-pointer2019100820190816
196394277? ? ?? ? ?refgcc_-m64_-march=k8_-O2_-fomit-frame-pointer2019100820190816
196879692? ? ?? ? ?refgcc_-O3_-fomit-frame-pointer2019100820190816
197736036? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=nocona_-O_-fomit-frame-pointer2019100820190816
203510214? ? ?? ? ?refgcc_-funroll-loops_-march=nocona_-O_-fomit-frame-pointer2019100820190816
211623852? ? ?? ? ?refgcc_-funroll-loops_-march=nocona_-O2_-fomit-frame-pointer2019100820190816
213937980? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=nocona_-O3_-fomit-frame-pointer2019100820190816
222165813? ? ?? ? ?refgcc_-march=nocona_-O3_-fomit-frame-pointer2019100820190816
222297165? ? ?? ? ?refgcc_-march=barcelona_-Os_-fomit-frame-pointer2019100820190816
222636018? ? ?? ? ?refgcc_-funroll-loops_-march=nocona_-O3_-fomit-frame-pointer2019100820190816
223172361? ? ?? ? ?refgcc_-m64_-march=core2_-msse4.1_-Os_-fomit-frame-pointer2019100820190816
223439661? ? ?? ? ?refgcc_-m64_-march=core2_-msse4_-Os_-fomit-frame-pointer2019100820190816
223532424? ? ?? ? ?refgcc_-funroll-loops_-m64_-Os_-fomit-frame-pointer2019100820190816
224253144? ? ?? ? ?refgcc_-funroll-loops_-march=barcelona_-Os_-fomit-frame-pointer2019100820190816
224435550? ? ?? ? ?refgcc_-march=native_-mtune=native_-Os_-fomit-frame-pointer_-fwrapv2019100820190816
224890848? ? ?? ? ?refgcc_-funroll-loops_-fno-schedule-insns_-Os_-fomit-frame-pointer2019100820190816
225156705? ? ?? ? ?refgcc_-fno-schedule-insns_-Os_-fomit-frame-pointer2019100820190816
225166584? ? ?? ? ?refgcc_-m64_-march=corei7_-Os_-fomit-frame-pointer2019100820190816
225523329? ? ?? ? ?refgcc_-m64_-march=nocona_-O2_-fomit-frame-pointer2019100820190816
225552273? ? ?? ? ?refgcc_-march=k8_-Os_-fomit-frame-pointer2019100820190816
225669036? ? ?? ? ?refgcc_-m64_-march=core2_-Os_-fomit-frame-pointer2019100820190816
225835836? ? ?? ? ?refgcc_-funroll-loops_-march=nocona_-Os_-fomit-frame-pointer2019100820190816
226026831? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=barcelona_-Os_-fomit-frame-pointer2019100820190816
227193402? ? ?? ? ?refgcc_-march=nocona_-Os_-fomit-frame-pointer2019100820190816
227643537? ? ?? ? ?refgcc_-m64_-march=barcelona_-Os_-fomit-frame-pointer2019100820190816
227992890? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=nocona_-O2_-fomit-frame-pointer2019100820190816
228147279? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=k8_-Os_-fomit-frame-pointer2019100820190816
228634515? ? ?? ? ?refgcc_-m64_-march=nocona_-Os_-fomit-frame-pointer2019100820190816
228794964? ? ?? ? ?refgcc_-funroll-loops_-Os_-fomit-frame-pointer2019100820190816
229054173? ? ?? ? ?refgcc_-funroll-loops_-march=k8_-Os_-fomit-frame-pointer2019100820190816
230172378? ? ?? ? ?refgcc_-march=nocona_-O2_-fomit-frame-pointer2019100820190816
231796125? ? ?? ? ?refgcc_-m64_-march=core-avx-i_-Os_-fomit-frame-pointer2019100820190816
233207997? ? ?? ? ?refgcc_-m64_-march=nocona_-O3_-fomit-frame-pointer2019100820190816
238481841? ? ?? ? ?refgcc_-m64_-march=k8_-Os_-fomit-frame-pointer2019100820190816
238890699? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=nocona_-Os_-fomit-frame-pointer2019100820190816
241201353? ? ?? ? ?refgcc_-m64_-march=native_-mtune=native_-Os_-fomit-frame-pointer2019100820190816
241277952? ? ?? ? ?refgcc_-m64_-Os_-fomit-frame-pointer2019100820190816
241430370? ? ?? ? ?refgcc_-m64_-march=corei7-avx_-Os_-fomit-frame-pointer2019100820190816
246166338? ? ?? ? ?refgcc_-Os_-fomit-frame-pointer2019100820190816
424951653? ? ?? ? ?refgcc_-funroll-loops2019100820190816
426131172? ? ?? ? ?refgcc2019100820190816
428996307? ? ?? ? ?refcc2019100820190816

Test failure

Implementation: ref
Security model: unknown
Compiler: gcc -m64 -march=core-avx2 -O2 -fomit-frame-pointer
error 111

Number of similar (compiler,implementation) pairs: 3, namely:
CompilerImplementations
gcc -m64 -march=core-avx2 -O2 -fomit-frame-pointer ref
gcc -m64 -march=core-avx2 -O -fomit-frame-pointer ref
gcc -m64 -march=core-avx2 -Os -fomit-frame-pointer ref

Compiler output

Implementation: ref
Security model: unknown
Compiler: cc
measure.c: /usr/bin/ld: /home/z/supercop/supercop-20190816/supercop-data/gpu/amd64/lib/fastrandombytes.o: relocation R_X86_64_32 against `.bss' can not be used when making a PIE object; recompile with -fPIC
measure.c: /usr/bin/ld: final link failed: Nonrepresentable section on output
measure.c: collect2: error: ld returned 1 exit status

Number of similar (compiler,implementation) pairs: 103, namely:
CompilerImplementations
cc ref
gcc ref
gcc -O2 -fomit-frame-pointer ref
gcc -O3 -fomit-frame-pointer ref
gcc -O -fomit-frame-pointer ref
gcc -Os -fomit-frame-pointer ref
gcc -fno-schedule-insns -O2 -fomit-frame-pointer ref
gcc -fno-schedule-insns -O3 -fomit-frame-pointer ref
gcc -fno-schedule-insns -O -fomit-frame-pointer ref
gcc -fno-schedule-insns -Os -fomit-frame-pointer ref
gcc -funroll-loops ref
gcc -funroll-loops -O2 -fomit-frame-pointer ref
gcc -funroll-loops -O3 -fomit-frame-pointer ref
gcc -funroll-loops -O -fomit-frame-pointer ref
gcc -funroll-loops -Os -fomit-frame-pointer ref
gcc -funroll-loops -fno-schedule-insns -O2 -fomit-frame-pointer ref
gcc -funroll-loops -fno-schedule-insns -O3 -fomit-frame-pointer ref
gcc -funroll-loops -fno-schedule-insns -O -fomit-frame-pointer ref
gcc -funroll-loops -fno-schedule-insns -Os -fomit-frame-pointer ref
gcc -funroll-loops -m64 -O2 -fomit-frame-pointer ref
gcc -funroll-loops -m64 -O3 -fomit-frame-pointer ref
gcc -funroll-loops -m64 -O -fomit-frame-pointer ref
gcc -funroll-loops -m64 -Os -fomit-frame-pointer ref
gcc -funroll-loops -m64 -march=barcelona -O2 -fomit-frame-pointer ref
gcc -funroll-loops -m64 -march=barcelona -O3 -fomit-frame-pointer ref
gcc -funroll-loops -m64 -march=barcelona -O -fomit-frame-pointer ref
gcc -funroll-loops -m64 -march=barcelona -Os -fomit-frame-pointer ref
gcc -funroll-loops -m64 -march=k8 -O2 -fomit-frame-pointer ref
gcc -funroll-loops -m64 -march=k8 -O3 -fomit-frame-pointer ref
gcc -funroll-loops -m64 -march=k8 -O -fomit-frame-pointer ref
gcc -funroll-loops -m64 -march=k8 -Os -fomit-frame-pointer ref
gcc -funroll-loops -m64 -march=nocona -O2 -fomit-frame-pointer ref
gcc -funroll-loops -m64 -march=nocona -O3 -fomit-frame-pointer ref
gcc -funroll-loops -m64 -march=nocona -O -fomit-frame-pointer ref
gcc -funroll-loops -m64 -march=nocona -Os -fomit-frame-pointer ref
gcc -funroll-loops -march=barcelona -O2 -fomit-frame-pointer ref
gcc -funroll-loops -march=barcelona -O3 -fomit-frame-pointer ref
gcc -funroll-loops -march=barcelona -O -fomit-frame-pointer ref
gcc -funroll-loops -march=barcelona -Os -fomit-frame-pointer ref
gcc -funroll-loops -march=k8 -O2 -fomit-frame-pointer ref
gcc -funroll-loops -march=k8 -O3 -fomit-frame-pointer ref
gcc -funroll-loops -march=k8 -O -fomit-frame-pointer ref
gcc -funroll-loops -march=k8 -Os -fomit-frame-pointer ref
gcc -funroll-loops -march=nocona -O2 -fomit-frame-pointer ref
gcc -funroll-loops -march=nocona -O3 -fomit-frame-pointer ref
gcc -funroll-loops -march=nocona -O -fomit-frame-pointer ref
gcc -funroll-loops -march=nocona -Os -fomit-frame-pointer ref
gcc -m64 -O2 -fomit-frame-pointer ref
gcc -m64 -O3 -fomit-frame-pointer ref
gcc -m64 -O -fomit-frame-pointer ref
gcc -m64 -Os -fomit-frame-pointer ref
gcc -m64 -march=core-avx-i -O2 -fomit-frame-pointer ref
gcc -m64 -march=core-avx-i -O3 -fomit-frame-pointer ref
gcc -m64 -march=core-avx-i -O -fomit-frame-pointer ref
gcc -m64 -march=core-avx-i -Os -fomit-frame-pointer ref
gcc -m64 -march=core2 -O2 -fomit-frame-pointer ref
gcc -m64 -march=core2 -O3 -fomit-frame-pointer ref
gcc -m64 -march=core2 -O -fomit-frame-pointer ref
gcc -m64 -march=core2 -Os -fomit-frame-pointer ref
gcc -m64 -march=core2 -msse4.1 -O2 -fomit-frame-pointer ref
gcc -m64 -march=core2 -msse4.1 -O3 -fomit-frame-pointer ref
gcc -m64 -march=core2 -msse4.1 -O -fomit-frame-pointer ref
gcc -m64 -march=core2 -msse4.1 -Os -fomit-frame-pointer ref
gcc -m64 -march=core2 -msse4 -O2 -fomit-frame-pointer ref
gcc -m64 -march=core2 -msse4 -O3 -fomit-frame-pointer ref
gcc -m64 -march=core2 -msse4 -O -fomit-frame-pointer ref
gcc -m64 -march=core2 -msse4 -Os -fomit-frame-pointer ref
gcc -m64 -march=corei7-avx -O2 -fomit-frame-pointer ref
gcc -m64 -march=corei7-avx -O3 -fomit-frame-pointer ref
gcc -m64 -march=corei7-avx -O -fomit-frame-pointer ref
gcc -m64 -march=corei7-avx -Os -fomit-frame-pointer ref
gcc -m64 -march=corei7 -O2 -fomit-frame-pointer ref
gcc -m64 -march=corei7 -O3 -fomit-frame-pointer ref
gcc -m64 -march=corei7 -O -fomit-frame-pointer ref
gcc -m64 -march=corei7 -Os -fomit-frame-pointer ref
gcc -m64 -march=k8 -O2 -fomit-frame-pointer ref
gcc -m64 -march=k8 -O3 -fomit-frame-pointer ref
gcc -m64 -march=k8 -O -fomit-frame-pointer ref
gcc -m64 -march=k8 -Os -fomit-frame-pointer ref
gcc -m64 -march=native -mtune=native -O2 -fomit-frame-pointer ref
gcc -m64 -march=native -mtune=native -O3 -fomit-frame-pointer ref
gcc -m64 -march=native -mtune=native -O -fomit-frame-pointer ref
gcc -m64 -march=native -mtune=native -Os -fomit-frame-pointer ref
gcc -m64 -march=nocona -O2 -fomit-frame-pointer ref
gcc -m64 -march=nocona -O3 -fomit-frame-pointer ref
gcc -m64 -march=nocona -O -fomit-frame-pointer ref
gcc -m64 -march=nocona -Os -fomit-frame-pointer ref
gcc -march=barcelona -O2 -fomit-frame-pointer ref
gcc -march=barcelona -O3 -fomit-frame-pointer ref
gcc -march=barcelona -O -fomit-frame-pointer ref
gcc -march=barcelona -Os -fomit-frame-pointer ref
gcc -march=k8 -O2 -fomit-frame-pointer ref
gcc -march=k8 -O3 -fomit-frame-pointer ref
gcc -march=k8 -O -fomit-frame-pointer ref
gcc -march=k8 -Os -fomit-frame-pointer ref
gcc -march=native -mtune=native -O2 -fomit-frame-pointer -fwrapv ref
gcc -march=native -mtune=native -O3 -fomit-frame-pointer -fwrapv ref
gcc -march=native -mtune=native -O -fomit-frame-pointer -fwrapv ref
gcc -march=native -mtune=native -Os -fomit-frame-pointer -fwrapv ref
gcc -march=nocona -O2 -fomit-frame-pointer ref
gcc -march=nocona -O3 -fomit-frame-pointer ref
gcc -march=nocona -O -fomit-frame-pointer ref
gcc -march=nocona -Os -fomit-frame-pointer ref

Compiler output

Implementation: ref
Security model: unknown
Compiler: gcc -m64 -march=barcelona -O2 -fomit-frame-pointer
measure.c: /usr/bin/ld: /home/z/supercop/supercop-20190816/supercop-data/gpu/amd64/lib/fastrandombytes.o: relocation R_X86_64_32 against `.bss' can not be used when making a PIE object; recompile with -fPIC
measure.c: /usr/bin/ld: final link failed: Nonrepresentable section on output
measure.c: collect2: error: ld returned 1 exit status
measure.c: /usr/bin/ld: /home/z/supercop/supercop-20190816/supercop-data/gpu/amd64/lib/fastrandombytes.o: relocation R_X86_64_32 against `.bss' can not be used when making a PIE object; recompile with -fPIC
measure.c: /usr/bin/ld: final link failed: Nonrepresentable section on output
measure.c: collect2: error: ld returned 1 exit status

Number of similar (compiler,implementation) pairs: 4, namely:
CompilerImplementations
gcc -m64 -march=barcelona -O2 -fomit-frame-pointer ref
gcc -m64 -march=barcelona -O3 -fomit-frame-pointer ref
gcc -m64 -march=barcelona -O -fomit-frame-pointer ref
gcc -m64 -march=barcelona -Os -fomit-frame-pointer ref