Implementation notes: amd64, pmnod076, crypto_sign/redgemss256

Computer: pmnod076
Architecture: amd64
CPU ID: GenuineIntel-00050657-bfebfbff
SUPERCOP version: 20191017
Operation: crypto_sign
Primitive: redgemss256

Time	Object size	Test size	Implementation	Compiler	Benchmark date	SUPERCOP version
16562810	144936 0 0	156493 864 1632	`opt`	`gcc_-march=native_-mtune=native_-O3_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20191024	20191017
16875850	170168 0 0	174404 896 1600	`opt`	`icc_-march=ivybridge_-mtune=ivybridge_-O3_-fomit-frame-pointer`	20191024	20191017
16948500	170168 0 0	174404 896 1600	`opt`	`icc_-march=corei7-avx_-mtune=corei7-avx_-O3_-fomit-frame-pointer`	20191024	20191017
17018448	170168 0 0	174404 896 1600	`opt`	`icc_-march=core-avx-i_-mtune=core-avx-i_-O3_-fomit-frame-pointer`	20191024	20191017
17022796	170296 0 0	174500 896 1600	`skylake`	`icc_-march=sandybridge_-mtune=sandybridge_-O3_-fomit-frame-pointer`	20191024	20191017
17100970	144980 0 0	156493 864 1632	`skylake`	`gcc_-march=native_-mtune=native_-O3_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20191024	20191017
17145682	170168 0 0	174404 896 1600	`opt`	`icc_-march=sandybridge_-mtune=sandybridge_-O3_-fomit-frame-pointer`	20191024	20191017
17160900	170296 0 0	174500 896 1600	`skylake`	`icc_-march=corei7-avx_-mtune=corei7-avx_-O3_-fomit-frame-pointer`	20191024	20191017
17217682	97238 0 0	108749 856 1600	`opt`	`gcc_-march=native_-mtune=native_-Os_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20191024	20191017
17291800	170296 0 0	174500 896 1600	`skylake`	`icc_-march=core-avx-i_-mtune=core-avx-i_-O3_-fomit-frame-pointer`	20191024	20191017
17439722	108574 0 0	119381 864 1632	`opt`	`gcc_-march=native_-mtune=native_-O2_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20191024	20191017
17496674	165824 0 0	170556 896 1600	`skylake`	`icc_-march=ivybridge_-mtune=ivybridge_-O2_-fomit-frame-pointer`	20191024	20191017
17581966	166016 0 0	170748 896 1600	`opt`	`icc_-march=core-avx-i_-mtune=core-avx-i_-O2_-fomit-frame-pointer`	20191024	20191017
17589508	170296 0 0	174500 896 1600	`skylake`	`icc_-march=ivybridge_-mtune=ivybridge_-O3_-fomit-frame-pointer`	20191024	20191017
17636880	165824 0 0	170556 896 1600	`skylake`	`icc_-march=sandybridge_-mtune=sandybridge_-O2_-fomit-frame-pointer`	20191024	20191017
17644030	166016 0 0	170748 896 1600	`opt`	`icc_-march=corei7-avx_-mtune=corei7-avx_-O2_-fomit-frame-pointer`	20191024	20191017
17662814	166016 0 0	170748 896 1600	`opt`	`icc_-march=sandybridge_-mtune=sandybridge_-O2_-fomit-frame-pointer`	20191024	20191017
17681178	165824 0 0	170556 896 1600	`skylake`	`icc_-march=corei7-avx_-mtune=corei7-avx_-O2_-fomit-frame-pointer`	20191024	20191017
17681276	165824 0 0	170556 896 1600	`skylake`	`icc_-march=core-avx-i_-mtune=core-avx-i_-O2_-fomit-frame-pointer`	20191024	20191017
17735048	166016 0 0	170748 896 1600	`opt`	`icc_-march=ivybridge_-mtune=ivybridge_-O2_-fomit-frame-pointer`	20191024	20191017
17800722	97360 0 0	108941 856 1600	`skylake`	`gcc_-march=native_-mtune=native_-Os_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20191024	20191017
17802892	108618 0 0	119445 864 1632	`skylake`	`gcc_-march=native_-mtune=native_-O2_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20191024	20191017
18066234	105015 0 0	116517 864 1632	`opt`	`gcc_-march=native_-mtune=native_-O_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20191024	20191017
18102078	105072 0 0	116581 864 1632	`skylake`	`gcc_-march=native_-mtune=native_-O_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20191024	20191017
19958984	151960 0 0	164268 896 1600	`opt`	`icc_-march=haswell_-mtune=haswell_-O3_-fomit-frame-pointer`	20191024	20191017
20016386	151960 0 0	164268 896 1600	`opt`	`icc_-march=core-avx2_-mtune=core-avx2_-O3_-fomit-frame-pointer`	20191024	20191017
20044884	151960 0 0	164268 896 1600	`opt`	`icc_-march=broadwell_-mtune=broadwell_-O3_-fomit-frame-pointer`	20191024	20191017
20317464	152088 0 0	164364 896 1600	`skylake`	`icc_-march=haswell_-mtune=haswell_-O3_-fomit-frame-pointer`	20191024	20191017
20393780	152088 0 0	164364 896 1600	`skylake`	`icc_-march=broadwell_-mtune=broadwell_-O3_-fomit-frame-pointer`	20191024	20191017
20415304	152088 0 0	164364 896 1600	`skylake`	`icc_-march=core-avx2_-mtune=core-avx2_-O3_-fomit-frame-pointer`	20191024	20191017
21191226	151960 0 0	164268 896 1600	`opt`	`icc_-march=skylake_-mtune=skylake_-O3_-fomit-frame-pointer`	20191024	20191017
21354832	152088 0 0	164364 896 1600	`skylake`	`icc_-march=skylake_-mtune=skylake_-O3_-fomit-frame-pointer`	20191024	20191017
22035972	150872 0 0	163812 896 1632	`opt`	`icc_-march=skylake-avx512_-mtune=skylake-avx512_-O3_-fomit-frame-pointer`	20191024	20191017
22458306	150584 0 0	163492 896 1632	`skylake`	`icc_-march=skylake-avx512_-mtune=skylake-avx512_-O3_-fomit-frame-pointer`	20191024	20191017
25445888	150360 0 0	165916 896 1632	`opt`	`icc_-march=icelake-client_-mtune=icelake-client_-O3_-fomit-frame-pointer`	20191024	20191017
25632486	150072 0 0	165660 896 1632	`skylake`	`icc_-march=icelake-client_-mtune=icelake-client_-O3_-fomit-frame-pointer`	20191024	20191017
25713642	150880 0 0	163372 896 1632	`opt`	`icc_-march=skylake-avx512_-mtune=skylake-avx512_-O2_-fomit-frame-pointer`	20191024	20191017
26437134	151448 0 0	163668 896 1600	`skylake`	`icc_-march=skylake_-mtune=skylake_-O2_-fomit-frame-pointer`	20191024	20191017
26509758	151640 0 0	163860 896 1600	`opt`	`icc_-march=core-avx2_-mtune=core-avx2_-O2_-fomit-frame-pointer`	20191024	20191017
26547154	150592 0 0	163052 896 1632	`skylake`	`icc_-march=skylake-avx512_-mtune=skylake-avx512_-O2_-fomit-frame-pointer`	20191024	20191017
26705216	151640 0 0	163860 896 1600	`opt`	`icc_-march=broadwell_-mtune=broadwell_-O2_-fomit-frame-pointer`	20191024	20191017
26712144	151448 0 0	163668 896 1600	`skylake`	`icc_-march=haswell_-mtune=haswell_-O2_-fomit-frame-pointer`	20191024	20191017
26754962	151640 0 0	163860 896 1600	`opt`	`icc_-march=haswell_-mtune=haswell_-O2_-fomit-frame-pointer`	20191024	20191017
26780206	151448 0 0	163668 896 1600	`skylake`	`icc_-march=broadwell_-mtune=broadwell_-O2_-fomit-frame-pointer`	20191024	20191017
26864044	151448 0 0	163668 896 1600	`skylake`	`icc_-march=core-avx2_-mtune=core-avx2_-O2_-fomit-frame-pointer`	20191024	20191017
26900314	151640 0 0	163860 896 1600	`opt`	`icc_-march=skylake_-mtune=skylake_-O2_-fomit-frame-pointer`	20191024	20191017
31556228	147512 0 0	163092 896 1632	`skylake`	`icc_-march=icelake-client_-mtune=icelake-client_-O2_-fomit-frame-pointer`	20191024	20191017
31953360	147800 0 0	163412 896 1632	`opt`	`icc_-march=icelake-client_-mtune=icelake-client_-O2_-fomit-frame-pointer`	20191024	20191017
166318112	105828 56 28	1902042 8248 6920	`ref`	`icpc_-march=skylake-avx512_-mtune=skylake-avx512_-O2_-fomit-frame-pointer`	20191024	20191017
188388838	108468 56 28	1904386 8248 6856	`ref`	`icpc_-march=skylake_-mtune=skylake_-O2_-fomit-frame-pointer`	20191024	20191017
203124708	102932 56 28	1898210 8248 6856	`ref`	`icpc_-march=sandybridge_-mtune=sandybridge_-O2_-fomit-frame-pointer`	20191024	20191017
203760612	99268 56 28	1893722 8248 6856	`ref`	`icpc_-march=corei7_-mtune=corei7_-O2_-fomit-frame-pointer`	20191024	20191017
206777608	102932 56 28	1898210 8248 6856	`ref`	`icpc_-march=ivybridge_-mtune=ivybridge_-O2_-fomit-frame-pointer`	20191024	20191017
207389748	104340 56 28	1899626 8248 6856	`ref`	`icpc_-march=corei7-avx_-mtune=corei7-avx_-O3_-fomit-frame-pointer`	20191024	20191017
208526380	104340 56 28	1899626 8248 6856	`ref`	`icpc_-march=core-avx-i_-mtune=core-avx-i_-O3_-fomit-frame-pointer`	20191024	20191017
208776096	108468 56 28	1904386 8248 6856	`ref`	`icpc_-march=broadwell_-mtune=broadwell_-O2_-fomit-frame-pointer`	20191024	20191017
209031696	43696 112 7	1812822 4408 6776	`ref`	`g++_-march=native_-mtune=native_-O_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20191024	20191017
209059050	51124 112 7	1822610 4408 6776	`ref`	`g++_-march=native_-mtune=native_-O2_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20191024	20191017
209162320	108468 56 28	1904386 8248 6856	`ref`	`icpc_-march=core-avx2_-mtune=core-avx2_-O2_-fomit-frame-pointer`	20191024	20191017
210407076	102932 56 28	1898210 8248 6856	`ref`	`icpc_-march=core-avx-i_-mtune=core-avx-i_-O2_-fomit-frame-pointer`	20191024	20191017
210834958	108468 56 28	1904386 8248 6856	`ref`	`icpc_-march=haswell_-mtune=haswell_-O2_-fomit-frame-pointer`	20191024	20191017
210940602	109724 56 28	1905170 8248 6856	`ref`	`icpc_-march=broadwell_-mtune=broadwell_-O3_-fomit-frame-pointer`	20191024	20191017
211023120	109724 56 28	1905170 8248 6856	`ref`	`icpc_-march=haswell_-mtune=haswell_-O3_-fomit-frame-pointer`	20191024	20191017
211229496	104340 56 28	1899626 8248 6856	`ref`	`icpc_-march=sandybridge_-mtune=sandybridge_-O3_-fomit-frame-pointer`	20191024	20191017
211641392	104340 56 28	1899626 8248 6856	`ref`	`icpc_-march=ivybridge_-mtune=ivybridge_-O3_-fomit-frame-pointer`	20191024	20191017
211894984	109724 56 28	1905170 8248 6856	`ref`	`icpc_-march=core-avx2_-mtune=core-avx2_-O3_-fomit-frame-pointer`	20191024	20191017
211945818	105380 56 28	1902194 8248 6920	`ref`	`icpc_-march=icelake-client_-mtune=icelake-client_-O2_-fomit-frame-pointer`	20191024	20191017
212254982	37713 112 7	1809626 4400 6776	`ref`	`g++_-march=native_-mtune=native_-Os_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20191024	20191017
212520974	109724 56 28	1905170 8248 6856	`ref`	`icpc_-march=skylake_-mtune=skylake_-O3_-fomit-frame-pointer`	20191024	20191017
213266758	63243 112 7	1838442 4408 6776	`ref`	`g++_-march=native_-mtune=native_-O3_-fomit-frame-pointer_-fwrapv_-fPIC_-fPIE`	20191024	20191017
213590750	102932 56 28	1898210 8248 6856	`ref`	`icpc_-march=corei7-avx_-mtune=corei7-avx_-O2_-fomit-frame-pointer`	20191024	20191017
213917378	100612 56 28	1895082 8248 6856	`ref`	`icpc_-march=corei7_-mtune=corei7_-O3_-fomit-frame-pointer`	20191024	20191017
214016000	107148 56 28	1903210 8248 6920	`ref`	`icpc_-march=skylake-avx512_-mtune=skylake-avx512_-O3_-fomit-frame-pointer`	20191024	20191017
216119514	106908 56 28	1903322 8248 6920	`ref`	`icpc_-march=icelake-client_-mtune=icelake-client_-O3_-fomit-frame-pointer`	20191024	20191017

Test failure

Implementation: opt
Security model: unknown
Compiler: icc -march=cannonlake -mtune=cannonlake -O2 -fomit-frame-pointer

error 111

Number of similar (compiler,implementation) pairs: 6, namely:

Compiler	Implementations
icc -march=cannonlake -mtune=cannonlake -O2 -fomit-frame-pointer	opt
icc -march=cannonlake -mtune=cannonlake -O3 -fomit-frame-pointer	opt
icpc -march=cannonlake -mtune=cannonlake -O2 -fomit-frame-pointer	ref
icpc -march=cannonlake -mtune=cannonlake -O3 -fomit-frame-pointer	ref
icc -march=cannonlake -mtune=cannonlake -O2 -fomit-frame-pointer	skylake
icc -march=cannonlake -mtune=cannonlake -O3 -fomit-frame-pointer	skylake

Compiler output

Implementation: opt
Security model: unknown
Compiler: icc -march=broadwell -mtune=broadwell -O2 -fomit-frame-pointer

chooseRootHFE_gf2nx.c: chooseRootHFE_gf2nx.c(65): warning #266: function "free" declared implicitly
chooseRootHFE_gf2nx.c: free(roots);
chooseRootHFE_gf2nx.c: ^
chooseRootHFE_gf2nx.c:
findRootsSplit_gf2nx.c: findRootsSplit_gf2nx.c(96): warning #266: function "malloc" declared implicitly
findRootsSplit_gf2nx.c: ALIGNED_MALLOC(poly_frob,UINT*,((deg<<1)-1)*NB_WORD_GFqn,sizeof(UINT));
findRootsSplit_gf2nx.c: ^
findRootsSplit_gf2nx.c:
findRootsSplit_gf2nx.c: findRootsSplit_gf2nx.c(129): warning #266: function "free" declared implicitly
findRootsSplit_gf2nx.c: free(poly_frob);
findRootsSplit_gf2nx.c: ^
findRootsSplit_gf2nx.c:
findRoots_gf2nx.c: findRoots_gf2nx.c(31): warning #266: function "calloc" declared implicitly
findRoots_gf2nx.c: *roots=(UINT*)calloc(NB_WORD_GFqn,sizeof(UINT));
findRoots_gf2nx.c: ^
findRoots_gf2nx.c:
findRoots_gf2nx.c: findRoots_gf2nx.c(41): warning #266: function "calloc" declared implicitly
findRoots_gf2nx.c: ALIGNED_CALLOC(poly,UINT*,((df<<1)-1)*NB_WORD_GFqn,sizeof(UINT));
findRoots_gf2nx.c: ^
findRoots_gf2nx.c:
findRoots_gf2nx.c: findRoots_gf2nx.c(50): warning #266: function "free" declared implicitly
findRoots_gf2nx.c: free(poly);
findRoots_gf2nx.c: ^
findRoots_gf2nx.c:
findRoots_gf2nx.c: findRoots_gf2nx.c(76): warning #266: function "free" declared implicitly
findRoots_gf2nx.c: free(poly2);
findRoots_gf2nx.c: ^
findRoots_gf2nx.c:
findRoots_gf2nx.c: findRoots_gf2nx.c(85): warning #266: function "free" declared implicitly
findRoots_gf2nx.c: free(poly);
findRoots_gf2nx.c: ^
findRoots_gf2nx.c:
findRoots_gf2nx.c: findRoots_gf2nx.c(124): warning #266: function "calloc" declared implicitly
findRoots_gf2nx.c: ALIGNED_CALLOC(poly,UINT*,((HFEDeg<<1)-1)*NB_WORD_GFqn,sizeof(UINT));
findRoots_gf2nx.c: ^
findRoots_gf2nx.c:
findRoots_gf2nx.c: findRoots_gf2nx.c(133): warning #266: function "free" declared implicitly
findRoots_gf2nx.c: ...
frobeniusMap_gf2nx.c: frobeniusMap_gf2nx.c(276): warning #266: function "malloc" declared implicitly
frobeniusMap_gf2nx.c: table=(UINT*)malloc((KX*HFEDeg+POW_II)*NB_WORD_GFqn*sizeof(UINT));
frobeniusMap_gf2nx.c: ^
frobeniusMap_gf2nx.c:
frobeniusMap_gf2nx.c: frobeniusMap_gf2nx.c(291): warning #266: function "calloc" declared implicitly
frobeniusMap_gf2nx.c: Xqn_sqr=(UINT*)calloc(HFEDeg*NB_WORD_GFqn,sizeof(UINT));
frobeniusMap_gf2nx.c: ^
frobeniusMap_gf2nx.c:
frobeniusMap_gf2nx.c: frobeniusMap_gf2nx.c(344): warning #266: function "free" declared implicitly
frobeniusMap_gf2nx.c: free(table);
frobeniusMap_gf2nx.c: ^
frobeniusMap_gf2nx.c:
signHFE.c: signHFE.c(173): warning #266: function "malloc" declared implicitly
signHFE.c: ALIGNED_MALLOC(F,UINT*,NB_UINT_HFEPOLY,sizeof(UINT));
signHFE.c: ^
signHFE.c:
signHFE.c: signHFE.c(664): warning #266: function "free" declared implicitly
signHFE.c: free(F);
signHFE.c: ^
signHFE.c:
signHFE.c: signHFE.c(695): warning #266: function "free" declared implicitly
signHFE.c: free(F);
signHFE.c: ^
signHFE.c:
signHFE.c: signHFE.c(1268): warning #266: function "free" declared implicitly
signHFE.c: free(F);
signHFE.c: ^
signHFE.c:
signHFE.c: signHFE.c(1325): warning #266: function "free" declared implicitly
signHFE.c: free(F);
signHFE.c: ^
signHFE.c:

Number of similar (compiler,implementation) pairs: 44, namely:

Compiler	Implementations
icc -march=broadwell -mtune=broadwell -O2 -fomit-frame-pointer	opt
icc -march=broadwell -mtune=broadwell -O3 -fomit-frame-pointer	opt
icc -march=cannonlake -mtune=cannonlake -O2 -fomit-frame-pointer	opt
icc -march=cannonlake -mtune=cannonlake -O3 -fomit-frame-pointer	opt
icc -march=core-avx-i -mtune=core-avx-i -O2 -fomit-frame-pointer	opt
icc -march=core-avx-i -mtune=core-avx-i -O3 -fomit-frame-pointer	opt
icc -march=core-avx2 -mtune=core-avx2 -O2 -fomit-frame-pointer	opt
icc -march=core-avx2 -mtune=core-avx2 -O3 -fomit-frame-pointer	opt
icc -march=corei7-avx -mtune=corei7-avx -O2 -fomit-frame-pointer	opt
icc -march=corei7-avx -mtune=corei7-avx -O3 -fomit-frame-pointer	opt
icc -march=haswell -mtune=haswell -O2 -fomit-frame-pointer	opt
icc -march=haswell -mtune=haswell -O3 -fomit-frame-pointer	opt
icc -march=icelake-client -mtune=icelake-client -O2 -fomit-frame-pointer	opt
icc -march=icelake-client -mtune=icelake-client -O3 -fomit-frame-pointer	opt
icc -march=ivybridge -mtune=ivybridge -O2 -fomit-frame-pointer	opt
icc -march=ivybridge -mtune=ivybridge -O3 -fomit-frame-pointer	opt
icc -march=sandybridge -mtune=sandybridge -O2 -fomit-frame-pointer	opt
icc -march=sandybridge -mtune=sandybridge -O3 -fomit-frame-pointer	opt
icc -march=skylake-avx512 -mtune=skylake-avx512 -O2 -fomit-frame-pointer	opt
icc -march=skylake-avx512 -mtune=skylake-avx512 -O3 -fomit-frame-pointer	opt
icc -march=skylake -mtune=skylake -O2 -fomit-frame-pointer	opt
icc -march=skylake -mtune=skylake -O3 -fomit-frame-pointer	opt
icc -march=broadwell -mtune=broadwell -O2 -fomit-frame-pointer	skylake
icc -march=broadwell -mtune=broadwell -O3 -fomit-frame-pointer	skylake
icc -march=cannonlake -mtune=cannonlake -O2 -fomit-frame-pointer	skylake
icc -march=cannonlake -mtune=cannonlake -O3 -fomit-frame-pointer	skylake
icc -march=core-avx-i -mtune=core-avx-i -O2 -fomit-frame-pointer	skylake
icc -march=core-avx-i -mtune=core-avx-i -O3 -fomit-frame-pointer	skylake
icc -march=core-avx2 -mtune=core-avx2 -O2 -fomit-frame-pointer	skylake
icc -march=core-avx2 -mtune=core-avx2 -O3 -fomit-frame-pointer	skylake
icc -march=corei7-avx -mtune=corei7-avx -O2 -fomit-frame-pointer	skylake
icc -march=corei7-avx -mtune=corei7-avx -O3 -fomit-frame-pointer	skylake
icc -march=haswell -mtune=haswell -O2 -fomit-frame-pointer	skylake
icc -march=haswell -mtune=haswell -O3 -fomit-frame-pointer	skylake
icc -march=icelake-client -mtune=icelake-client -O2 -fomit-frame-pointer	skylake
icc -march=icelake-client -mtune=icelake-client -O3 -fomit-frame-pointer	skylake
icc -march=ivybridge -mtune=ivybridge -O2 -fomit-frame-pointer	skylake
icc -march=ivybridge -mtune=ivybridge -O3 -fomit-frame-pointer	skylake
icc -march=sandybridge -mtune=sandybridge -O2 -fomit-frame-pointer	skylake
icc -march=sandybridge -mtune=sandybridge -O3 -fomit-frame-pointer	skylake
icc -march=skylake-avx512 -mtune=skylake-avx512 -O2 -fomit-frame-pointer	skylake
icc -march=skylake-avx512 -mtune=skylake-avx512 -O3 -fomit-frame-pointer	skylake
icc -march=skylake -mtune=skylake -O2 -fomit-frame-pointer	skylake
icc -march=skylake -mtune=skylake -O3 -fomit-frame-pointer	skylake

Compiler output

Implementation: opt
Security model: unknown
Compiler: icc -march=corei7 -mtune=corei7 -O2 -fomit-frame-pointer

arith_gf2n.c: In file included from tools_gf2n.h(162),
arith_gf2n.c: from arith_gf2n.h(9),
arith_gf2n.c: from arith_gf2n.c(1):
arith_gf2n.c: mul_gf2x.h(17): catastrophic error: cannot open source file "gf2x/gf2x_mul1.h"
arith_gf2n.c: #include <gf2x/gf2x_mul1.h>
arith_gf2n.c: ^
arith_gf2n.c:
arith_gf2n.c: compilation aborted for arith_gf2n.c (code 4)

Number of similar (compiler,implementation) pairs: 4, namely:

Compiler	Implementations
icc -march=corei7 -mtune=corei7 -O2 -fomit-frame-pointer	opt
icc -march=corei7 -mtune=corei7 -O3 -fomit-frame-pointer	opt
icc -march=corei7 -mtune=corei7 -O2 -fomit-frame-pointer	skylake
icc -march=corei7 -mtune=corei7 -O3 -fomit-frame-pointer	skylake