Implementation notes: amd64, tueisecgern, crypto_scalarmult/curve25519

Computer: tueisecgern
Architecture: amd64
CPU ID: GenuineIntel-000306f2-bfebfbff
SUPERCOP version: 20160724
Operation: crypto_scalarmult
Primitive: curve25519

Time	Implementation	Compiler	Benchmark date	SUPERCOP version
531450	`sandy2x`	`gcc -march=native -mtune=native -O2 -fomit-frame-pointer -fwrapv`	20160722	20160718
542119	`sandy2x`	`gcc -march=native -mtune=native -O -fomit-frame-pointer -fwrapv`	20160722	20160718
575276	`amd64-51`	`gcc -march=native -mtune=native -O2 -fomit-frame-pointer -fwrapv`	20160722	20160718
633402	`amd64-64`	`gcc -march=native -mtune=native -O2 -fomit-frame-pointer -fwrapv`	20160722	20160718
634270	`amd64-64`	`gcc -march=native -mtune=native -O3 -fomit-frame-pointer -fwrapv`	20160722	20160718
636275	`amd64-64`	`gcc -march=native -mtune=native -Os -fomit-frame-pointer -fwrapv`	20160722	20160718
636300	`amd64-64`	`gcc -march=native -mtune=native -O -fomit-frame-pointer -fwrapv`	20160722	20160718
755044	`donna_c64`	`gcc -march=native -mtune=native -O3 -fomit-frame-pointer -fwrapv`	20160722	20160718
767175	`donna_c64`	`gcc -march=native -mtune=native -O -fomit-frame-pointer -fwrapv`	20160722	20160718
837004	`donna_c64`	`gcc -march=native -mtune=native -O2 -fomit-frame-pointer -fwrapv`	20160722	20160718
883320	`donna_c64`	`gcc -march=native -mtune=native -Os -fomit-frame-pointer -fwrapv`	20160722	20160718
942120	`sandy2x`	`gcc -march=native -mtune=native -Os -fomit-frame-pointer -fwrapv`	20160722	20160718
952452	`sandy2x`	`gcc -march=native -mtune=native -O3 -fomit-frame-pointer -fwrapv`	20160722	20160718
1131146	`amd64-51`	`gcc -march=native -mtune=native -Os -fomit-frame-pointer -fwrapv`	20160722	20160718
1148728	`amd64-51`	`gcc -march=native -mtune=native -O -fomit-frame-pointer -fwrapv`	20160722	20160718
1156109	`amd64-51`	`gcc -march=native -mtune=native -O3 -fomit-frame-pointer -fwrapv`	20160722	20160718
1944837	`donna`	`gcc -march=native -mtune=native -O2 -fomit-frame-pointer -fwrapv`	20160722	20160718
1991162	`donna`	`gcc -march=native -mtune=native -O3 -fomit-frame-pointer -fwrapv`	20160722	20160718
2067081	`donna`	`gcc -march=native -mtune=native -O -fomit-frame-pointer -fwrapv`	20160722	20160718
2160568	`donna`	`gcc -march=native -mtune=native -Os -fomit-frame-pointer -fwrapv`	20160722	20160718
2531527	`ref10`	`gcc -march=native -mtune=native -Os -fomit-frame-pointer -fwrapv`	20160722	20160718
2533459	`ref10`	`gcc -march=native -mtune=native -O3 -fomit-frame-pointer -fwrapv`	20160722	20160718
2540964	`ref10`	`gcc -march=native -mtune=native -O -fomit-frame-pointer -fwrapv`	20160722	20160718
2567794	`ref10`	`gcc -march=native -mtune=native -O2 -fomit-frame-pointer -fwrapv`	20160722	20160718
20263623	`ref`	`gcc -march=native -mtune=native -O -fomit-frame-pointer -fwrapv`	20160722	20160718
21884117	`ref`	`gcc -march=native -mtune=native -Os -fomit-frame-pointer -fwrapv`	20160722	20160718
41974893	`ref`	`gcc -march=native -mtune=native -O3 -fomit-frame-pointer -fwrapv`	20160722	20160718
42731461	`ref`	`gcc -march=native -mtune=native -O2 -fomit-frame-pointer -fwrapv`	20160722	20160718

Compiler output

Implementation: crypto_scalarmult/curve25519/donna_c64
Compiler: gcc -march=native -mtune=native -O2 -fomit-frame-pointer -fwrapv

smult.c: smult.c:149:1: warning: always_inline function might not be inlinable [-Wattributes]
smult.c: fsquare_times(felem output, const felem in, limb count) {
smult.c: ^
smult.c: smult.c:100:1: warning: always_inline function might not be inlinable [-Wattributes]
smult.c: fmul(felem output, const felem in2, const felem in) {
smult.c: ^
smult.c: smult.c:70:1: warning: always_inline function might not be inlinable [-Wattributes]
smult.c: fscalar_product(felem output, const felem in, const limb scalar) {
smult.c: ^
smult.c: smult.c:56:1: warning: always_inline function might not be inlinable [-Wattributes]
smult.c: fdifference_backwards(felem out, const felem in) {
smult.c: ^
smult.c: smult.c:41:1: warning: always_inline function might not be inlinable [-Wattributes]
smult.c: fsum(limb *output, const limb *in) {
smult.c: ^

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

Compiler	Implementations
gcc -march=native -mtune=native -O2 -fomit-frame-pointer -fwrapv	donna_c64
gcc -march=native -mtune=native -O3 -fomit-frame-pointer -fwrapv	donna_c64
gcc -march=native -mtune=native -O -fomit-frame-pointer -fwrapv	donna_c64
gcc -march=native -mtune=native -Os -fomit-frame-pointer -fwrapv	donna_c64