Implementation notes: amd64, manny613, crypto_sign/sphincs256

Computer: manny613
Architecture: amd64
CPU ID: GenuineIntel-000306e4-bfebfbff
SUPERCOP version: 20180818
Operation: crypto_sign
Primitive: sphincs256
TimeObject sizeTest sizeImplementationCompilerBenchmark dateSUPERCOP version
252269956? ? ?? ? ?reficc_-xAVX_-O2_-fomit-frame-pointer2018090220180818
252487692? ? ?? ? ?reficc_-xCORE-AVX-I_-O2_-fomit-frame-pointer2018090220180818
253521364? ? ?? ? ?reficc_-xCORE-AVX-I_-O3_-fomit-frame-pointer2018090220180818
253630552? ? ?? ? ?reficc_-xAVX_-O3_-fomit-frame-pointer2018090220180818
256483160? ? ?? ? ?reficc_-xSSE4.1_-O3_-fomit-frame-pointer2018090220180818
256565036? ? ?? ? ?reficc_-xSSE4.2_-O3_-fomit-frame-pointer2018090220180818
256867152? ? ?? ? ?reficc_-xSSE4.1_-O2_-fomit-frame-pointer2018090220180818
257978372? ? ?? ? ?reficc_-xSSE4.2_-O2_-fomit-frame-pointer2018090220180818
289525520? ? ?? ? ?reficc2018090220180818
381341352? ? ?? ? ?reficc_-no-vec2018090220180818

Test failure

Implementation: avx2
Security model: unknown
Compiler: icc
error 111

Number of similar (compiler,implementation) pairs: 10, namely:
CompilerImplementations
icc avx2
icc -no-vec avx2
icc -xAVX -O2 -fomit-frame-pointer avx2
icc -xAVX -O3 -fomit-frame-pointer avx2
icc -xCORE-AVX-I -O2 -fomit-frame-pointer avx2
icc -xCORE-AVX-I -O3 -fomit-frame-pointer avx2
icc -xSSE4.1 -O2 -fomit-frame-pointer avx2
icc -xSSE4.1 -O3 -fomit-frame-pointer avx2
icc -xSSE4.2 -O2 -fomit-frame-pointer avx2
icc -xSSE4.2 -O3 -fomit-frame-pointer avx2

Compiler output

Implementation: avx2
Security model: unknown
Compiler: cc
try.c: /home_nfs/bdolbeaur/supercop-20180818/supercop-data/manny613/amd64/lib/libsupercop.a(crypto_hash_blake512_sse41-hash.o): In function `crypto_hash_blake512_sse41':
try.c: hash.c:(.text+0x...): undefined reference to `__intel_ssse3_rep_memcpy'
try.c: hash.c:(.text+0x...): undefined reference to `__intel_ssse3_rep_memcpy'
try.c: hash.c:(.text+0x...): undefined reference to `__intel_ssse3_rep_memcpy'
try.c: hash.c:(.text+0x...): undefined reference to `__intel_ssse3_rep_memcpy'
try.c: hash.c:(.text+0x...): undefined reference to `__intel_ssse3_rep_memcpy'
try.c: /home_nfs/bdolbeaur/supercop-20180818/supercop-data/manny613/amd64/lib/libsupercop.a(crypto_hash_blake512_sse41-hash.o):hash.c:(.text+0x...): more undefined references to `__intel_ssse3_rep_memcpy' follow
try.c: collect2: error: ld returned 1 exit status

Number of similar (compiler,implementation) pairs: 212, namely:
CompilerImplementations
cc avx2
gcc avx2
gcc -O2 -fomit-frame-pointer avx2
gcc -O3 -fomit-frame-pointer avx2
gcc -O -fomit-frame-pointer avx2
gcc -Os -fomit-frame-pointer avx2
gcc -fno-schedule-insns -O2 -fomit-frame-pointer avx2
gcc -fno-schedule-insns -O3 -fomit-frame-pointer avx2
gcc -fno-schedule-insns -O -fomit-frame-pointer avx2
gcc -fno-schedule-insns -Os -fomit-frame-pointer avx2
gcc -funroll-loops avx2
gcc -funroll-loops -O2 -fomit-frame-pointer avx2
gcc -funroll-loops -O3 -fomit-frame-pointer avx2
gcc -funroll-loops -O -fomit-frame-pointer avx2
gcc -funroll-loops -Os -fomit-frame-pointer avx2
gcc -funroll-loops -fno-schedule-insns -O2 -fomit-frame-pointer avx2
gcc -funroll-loops -fno-schedule-insns -O3 -fomit-frame-pointer avx2
gcc -funroll-loops -fno-schedule-insns -O -fomit-frame-pointer avx2
gcc -funroll-loops -fno-schedule-insns -Os -fomit-frame-pointer avx2
gcc -funroll-loops -m64 -O2 -fomit-frame-pointer avx2
gcc -funroll-loops -m64 -O3 -fomit-frame-pointer avx2
gcc -funroll-loops -m64 -O -fomit-frame-pointer avx2
gcc -funroll-loops -m64 -Os -fomit-frame-pointer avx2
gcc -funroll-loops -m64 -march=barcelona -O2 -fomit-frame-pointer avx2
gcc -funroll-loops -m64 -march=barcelona -O3 -fomit-frame-pointer avx2
gcc -funroll-loops -m64 -march=barcelona -O -fomit-frame-pointer avx2
gcc -funroll-loops -m64 -march=barcelona -Os -fomit-frame-pointer avx2
gcc -funroll-loops -m64 -march=k8 -O2 -fomit-frame-pointer avx2
gcc -funroll-loops -m64 -march=k8 -O3 -fomit-frame-pointer avx2
gcc -funroll-loops -m64 -march=k8 -O -fomit-frame-pointer avx2
gcc -funroll-loops -m64 -march=k8 -Os -fomit-frame-pointer avx2
gcc -funroll-loops -m64 -march=nocona -O2 -fomit-frame-pointer avx2
gcc -funroll-loops -m64 -march=nocona -O3 -fomit-frame-pointer avx2
gcc -funroll-loops -m64 -march=nocona -O -fomit-frame-pointer avx2
gcc -funroll-loops -m64 -march=nocona -Os -fomit-frame-pointer avx2
gcc -funroll-loops -march=barcelona -O2 -fomit-frame-pointer avx2
gcc -funroll-loops -march=barcelona -O3 -fomit-frame-pointer avx2
gcc -funroll-loops -march=barcelona -O -fomit-frame-pointer avx2
gcc -funroll-loops -march=barcelona -Os -fomit-frame-pointer avx2
gcc -funroll-loops -march=k8 -O2 -fomit-frame-pointer avx2
gcc -funroll-loops -march=k8 -O3 -fomit-frame-pointer avx2
gcc -funroll-loops -march=k8 -O -fomit-frame-pointer avx2
gcc -funroll-loops -march=k8 -Os -fomit-frame-pointer avx2
gcc -funroll-loops -march=nocona -O2 -fomit-frame-pointer avx2
gcc -funroll-loops -march=nocona -O3 -fomit-frame-pointer avx2
gcc -funroll-loops -march=nocona -O -fomit-frame-pointer avx2
gcc -funroll-loops -march=nocona -Os -fomit-frame-pointer avx2
gcc -m64 -O2 -fomit-frame-pointer avx2
gcc -m64 -O3 -fomit-frame-pointer avx2
gcc -m64 -O -fomit-frame-pointer avx2
gcc -m64 -Os -fomit-frame-pointer avx2
gcc -m64 -march=core-avx-i -O2 -fomit-frame-pointer avx2
gcc -m64 -march=core-avx-i -O3 -fomit-frame-pointer avx2
gcc -m64 -march=core-avx-i -O -fomit-frame-pointer avx2
gcc -m64 -march=core-avx-i -Os -fomit-frame-pointer avx2
gcc -m64 -march=core-avx2 -O2 -fomit-frame-pointer avx2
gcc -m64 -march=core-avx2 -O -fomit-frame-pointer avx2
gcc -m64 -march=core-avx2 -Os -fomit-frame-pointer avx2
gcc -m64 -march=core2 -O2 -fomit-frame-pointer avx2
gcc -m64 -march=core2 -O3 -fomit-frame-pointer avx2
gcc -m64 -march=core2 -O -fomit-frame-pointer avx2
gcc -m64 -march=core2 -Os -fomit-frame-pointer avx2
gcc -m64 -march=core2 -msse4.1 -O2 -fomit-frame-pointer avx2
gcc -m64 -march=core2 -msse4.1 -O3 -fomit-frame-pointer avx2
gcc -m64 -march=core2 -msse4.1 -O -fomit-frame-pointer avx2
gcc -m64 -march=core2 -msse4.1 -Os -fomit-frame-pointer avx2
gcc -m64 -march=core2 -msse4 -O2 -fomit-frame-pointer avx2
gcc -m64 -march=core2 -msse4 -O3 -fomit-frame-pointer avx2
gcc -m64 -march=core2 -msse4 -O -fomit-frame-pointer avx2
gcc -m64 -march=core2 -msse4 -Os -fomit-frame-pointer avx2
gcc -m64 -march=corei7-avx -O2 -fomit-frame-pointer avx2
gcc -m64 -march=corei7-avx -O3 -fomit-frame-pointer avx2
gcc -m64 -march=corei7-avx -O -fomit-frame-pointer avx2
gcc -m64 -march=corei7-avx -Os -fomit-frame-pointer avx2
gcc -m64 -march=corei7 -O2 -fomit-frame-pointer avx2
gcc -m64 -march=corei7 -O3 -fomit-frame-pointer avx2
gcc -m64 -march=corei7 -O -fomit-frame-pointer avx2
gcc -m64 -march=corei7 -Os -fomit-frame-pointer avx2
gcc -m64 -march=k8 -O2 -fomit-frame-pointer avx2
gcc -m64 -march=k8 -O3 -fomit-frame-pointer avx2
gcc -m64 -march=k8 -O -fomit-frame-pointer avx2
gcc -m64 -march=k8 -Os -fomit-frame-pointer avx2
gcc -m64 -march=native -mtune=native -O2 -fomit-frame-pointer avx2
gcc -m64 -march=native -mtune=native -O3 -fomit-frame-pointer avx2
gcc -m64 -march=native -mtune=native -O -fomit-frame-pointer avx2
gcc -m64 -march=native -mtune=native -Os -fomit-frame-pointer avx2
gcc -m64 -march=nocona -O2 -fomit-frame-pointer avx2
gcc -m64 -march=nocona -O3 -fomit-frame-pointer avx2
gcc -m64 -march=nocona -O -fomit-frame-pointer avx2
gcc -m64 -march=nocona -Os -fomit-frame-pointer avx2
gcc -march=barcelona -O2 -fomit-frame-pointer avx2
gcc -march=barcelona -O3 -fomit-frame-pointer avx2
gcc -march=barcelona -O -fomit-frame-pointer avx2
gcc -march=barcelona -Os -fomit-frame-pointer avx2
gcc -march=k8 -O2 -fomit-frame-pointer avx2
gcc -march=k8 -O3 -fomit-frame-pointer avx2
gcc -march=k8 -O -fomit-frame-pointer avx2
gcc -march=k8 -Os -fomit-frame-pointer avx2
gcc -march=native -mtune=native -O2 -fomit-frame-pointer -fwrapv avx2
gcc -march=native -mtune=native -O3 -fomit-frame-pointer -fwrapv avx2
gcc -march=native -mtune=native -O -fomit-frame-pointer -fwrapv avx2
gcc -march=native -mtune=native -Os -fomit-frame-pointer -fwrapv avx2
gcc -march=nocona -O2 -fomit-frame-pointer avx2
gcc -march=nocona -O3 -fomit-frame-pointer avx2
gcc -march=nocona -O -fomit-frame-pointer avx2
gcc -march=nocona -Os -fomit-frame-pointer avx2
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=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
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: avx2
Security model: unknown
Compiler: gcc -m64 -march=barcelona -O2 -fomit-frame-pointer
try.c: /home_nfs/bdolbeaur/supercop-20180818/supercop-data/manny613/amd64/lib/libsupercop.a(crypto_hash_blake512_sse41-hash.o): In function `crypto_hash_blake512_sse41':
try.c: hash.c:(.text+0x...): undefined reference to `__intel_ssse3_rep_memcpy'
try.c: hash.c:(.text+0x...): undefined reference to `__intel_ssse3_rep_memcpy'
try.c: hash.c:(.text+0x...): undefined reference to `__intel_ssse3_rep_memcpy'
try.c: hash.c:(.text+0x...): undefined reference to `__intel_ssse3_rep_memcpy'
try.c: hash.c:(.text+0x...): undefined reference to `__intel_ssse3_rep_memcpy'
try.c: /home_nfs/bdolbeaur/supercop-20180818/supercop-data/manny613/amd64/lib/libsupercop.a(crypto_hash_blake512_sse41-hash.o):hash.c:(.text+0x...): more undefined references to `__intel_ssse3_rep_memcpy' follow
try.c: collect2: error: ld returned 1 exit status
try.c: /home_nfs/bdolbeaur/supercop-20180818/supercop-data/manny613/amd64/lib/libsupercop.a(crypto_hash_blake512_sse41-hash.o): In function `crypto_hash_blake512_sse41':
try.c: hash.c:(.text+0x...): undefined reference to `__intel_ssse3_rep_memcpy'
try.c: hash.c:(.text+0x...): undefined reference to `__intel_ssse3_rep_memcpy'
try.c: hash.c:(.text+0x...): undefined reference to `__intel_ssse3_rep_memcpy'
try.c: hash.c:(.text+0x...): undefined reference to `__intel_ssse3_rep_memcpy'
try.c: hash.c:(.text+0x...): undefined reference to `__intel_ssse3_rep_memcpy'
try.c: /home_nfs/bdolbeaur/supercop-20180818/supercop-data/manny613/amd64/lib/libsupercop.a(crypto_hash_blake512_sse41-hash.o):hash.c:(.text+0x...): more undefined references to `__intel_ssse3_rep_memcpy' follow
try.c: collect2: error: ld returned 1 exit status

Number of similar (compiler,implementation) pairs: 8, namely:
CompilerImplementations
gcc -m64 -march=barcelona -O2 -fomit-frame-pointer avx2
gcc -m64 -march=barcelona -O3 -fomit-frame-pointer avx2
gcc -m64 -march=barcelona -O -fomit-frame-pointer avx2
gcc -m64 -march=barcelona -Os -fomit-frame-pointer avx2
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

Compiler output

Implementation: avx2
Security model: unknown
Compiler: icc
try.c: ipo: remark #11035: Il version for /home_nfs/bdolbeaur/supercop-20180818/supercop-data/manny613/amd64/lib/libsupercop.a (06) does not match compiler's il version (8447400964829108295), ignoring object file

Number of similar (compiler,implementation) pairs: 10, namely:
CompilerImplementations
icc avx2
icc -no-vec avx2
icc -xAVX -O2 -fomit-frame-pointer avx2
icc -xAVX -O3 -fomit-frame-pointer avx2
icc -xCORE-AVX-I -O2 -fomit-frame-pointer avx2
icc -xCORE-AVX-I -O3 -fomit-frame-pointer avx2
icc -xSSE4.1 -O2 -fomit-frame-pointer avx2
icc -xSSE4.1 -O3 -fomit-frame-pointer avx2
icc -xSSE4.2 -O2 -fomit-frame-pointer avx2
icc -xSSE4.2 -O3 -fomit-frame-pointer avx2

Compiler output

Implementation: ref
Security model: unknown
Compiler: icc
try.c: ipo: remark #11035: Il version for /home_nfs/bdolbeaur/supercop-20180818/supercop-data/manny613/amd64/lib/libsupercop.a (06) does not match compiler's il version (8447400964829108295), ignoring object file
try.c: ipo: remark #11035: Il version for /home_nfs/bdolbeaur/supercop-20180818/supercop-data/manny613/amd64/lib/libsupercop.a (06) does not match compiler's il version (8447400964829108295), ignoring object file
measure.c: ipo: remark #11035: Il version for /home_nfs/bdolbeaur/supercop-20180818/supercop-data/manny613/amd64/lib/libsupercop.a (06) does not match compiler's il version (8447400964829108295), ignoring object file

Number of similar (compiler,implementation) pairs: 10, namely:
CompilerImplementations
icc ref
icc -no-vec ref
icc -xAVX -O2 -fomit-frame-pointer ref
icc -xAVX -O3 -fomit-frame-pointer ref
icc -xCORE-AVX-I -O2 -fomit-frame-pointer ref
icc -xCORE-AVX-I -O3 -fomit-frame-pointer ref
icc -xSSE4.1 -O2 -fomit-frame-pointer ref
icc -xSSE4.1 -O3 -fomit-frame-pointer ref
icc -xSSE4.2 -O2 -fomit-frame-pointer ref
icc -xSSE4.2 -O3 -fomit-frame-pointer ref