Implementation notes: amd64, lucienne, crypto_kem/remblem928

Computer: lucienne
Microarchitecture: amd64; Zen 2 (860f81)
Architecture: amd64
CPU ID: AuthenticAMD-00860f81-178bfbff
SUPERCOP version: 20240716
Operation: crypto_kem
Primitive: remblem928

Time	Object size	Test size	Implementation	Compiler	Benchmark date	SUPERCOP version
10314477	16032 4128 72	42998 5020 1848	`T:ref`	`gcc_-march=native_-mtune=native_-O3_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240721	20240716
10693910	16972 4116 72	43685 5028 1784	`T:ref`	`clang_-march=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240721	20240716
10868518	17351 4116 72	44245 5028 1784	`T:ref`	`clang_-mcpu=native_-O3_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240721	20240716
10969042	8894 4128 72	34142 5020 1848	`T:ref`	`gcc_-march=native_-mtune=native_-O2_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240721	20240716
10996830	7657 4128 72	32454 5020 1848	`T:ref`	`gcc_-march=native_-mtune=native_-O_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240721	20240716
11014100	7792 4116 72	32003 5020 1784	`T:ref`	`clang_-march=native_-Os_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240721	20240716
11021135	15224 4116 72	41677 5028 1784	`T:ref`	`clang_-march=native_-O2_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240721	20240716
11249688	7513 4116 72	32019 5020 1784	`T:ref`	`clang_-march=native_-O_-fwrapv_-Qunused-arguments_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240721	20240716
11974929	6285 4128 72	30014 5012 1816	`T:ref`	`gcc_-march=native_-mtune=native_-Os_-fwrapv_-fPIC_-fPIE_-gdwarf-4_-Wall`	20240721	20240716

Compiler output

kem.c: kem.c:97:16: warning: unused variable 'D_tmp' [-Wunused-variable]
kem.c:         unsigned char D_tmp[32];
kem.c:                       ^
kem.c: kem.c:198:9: warning: unused variable 'j' [-Wunused-variable]
kem.c:         int i, j;
kem.c:                ^
kem.c: kem.c:322:19: warning: unused variable 'bit' [-Wunused-variable]
kem.c:         int i, j, bit;
kem.c:                   ^
kem.c: kem.c:322:16: warning: unused variable 'j' [-Wunused-variable]
kem.c:         int i, j, bit;
kem.c:                ^
kem.c: kem.c:366:24: warning: passing 'int *' to parameter of type 'unsigned int *' converts between pointers to integer types with different sign [-Wpointer-sign]
kem.c:         bytes_from_modq(pk+32,pPubKey_B,CRYPTO_R_n);
kem.c:                               ^~~~~~~~~
kem.c: kem.c:27:60: note: passing argument to parameter 'x' here
kem.c: static void bytes_from_modq(unsigned char *y,unsigned int *x,int xlen)
kem.c:                                                            ^
kem.c: kem.c:340:9: warning: unused variable 'j' [-Wunused-variable]
kem.c:         int i, j, bit;
kem.c:                ^
kem.c: kem.c:340:12: warning: unused variable 'bit' [-Wunused-variable]
kem.c:         int i, j, bit;
kem.c:                   ^
kem.c: kem.c:454:6: warning: unused variable 'tmp' [-Wunused-variable]
kem.c: ...

Number of similar (implementation,compiler) pairs: 3, namely:

Implementation	Compiler
`T:ref`	`clang -march=native -O2 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`
`T:ref`	`clang -march=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`
`T:ref`	`clang -mcpu=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`

Compiler output

kem.c: kem.c:97:16: warning: unused variable 'D_tmp' [-Wunused-variable]
kem.c:         unsigned char D_tmp[32];
kem.c:                       ^
kem.c: kem.c:198:9: warning: unused variable 'j' [-Wunused-variable]
kem.c:         int i, j;
kem.c:                ^
kem.c: kem.c:322:19: warning: unused variable 'bit' [-Wunused-variable]
kem.c:         int i, j, bit;
kem.c:                   ^
kem.c: kem.c:322:16: warning: unused variable 'j' [-Wunused-variable]
kem.c:         int i, j, bit;
kem.c:                ^
kem.c: kem.c:366:24: warning: passing 'int *' to parameter of type 'unsigned int *' converts between pointers to integer types with different sign [-Wpointer-sign]
kem.c:         bytes_from_modq(pk+32,pPubKey_B,CRYPTO_R_n);
kem.c:                               ^~~~~~~~~
kem.c: kem.c:27:60: note: passing argument to parameter 'x' here
kem.c: static void bytes_from_modq(unsigned char *y,unsigned int *x,int xlen)
kem.c:                                                            ^
kem.c: kem.c:340:12: warning: unused variable 'bit' [-Wunused-variable]
kem.c:         int i, j, bit;
kem.c:                   ^
kem.c: kem.c:340:9: warning: unused variable 'j' [-Wunused-variable]
kem.c:         int i, j, bit;
kem.c:                ^
kem.c: kem.c:454:6: warning: unused variable 'tmp' [-Wunused-variable]
kem.c: ...

Number of similar (implementation,compiler) pairs: 2, namely:

Implementation	Compiler
`T:ref`	`clang -march=native -O -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`
`T:ref`	`clang -march=native -Os -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`

Compiler output

kem.c: kem.c: In function 'SHA256_OS':
kem.c: kem.c:97:16: warning: unused variable 'D_tmp' [-Wunused-variable]
kem.c:    97 |  unsigned char D_tmp[32];
kem.c:       |                ^~~~~
kem.c: kem.c: In function 'p_add':
kem.c: kem.c:198:9: warning: unused variable 'j' [-Wunused-variable]
kem.c:   198 |  int i, j;
kem.c:       |         ^
kem.c: kem.c: In function 'keys_from_pk':
kem.c: kem.c:322:19: warning: unused variable 'bit' [-Wunused-variable]
kem.c:   322 |         int i, j, bit;
kem.c:       |                   ^~~
kem.c: kem.c:322:16: warning: unused variable 'j' [-Wunused-variable]
kem.c:   322 |         int i, j, bit;
kem.c:       |                ^
kem.c: kem.c: In function 'keys_from_sk':
kem.c: kem.c:366:24: warning: pointer targets in passing argument 2 of 'bytes_from_modq' differ in signedness [-Wpointer-sign]
kem.c:   366 |  bytes_from_modq(pk+32,pPubKey_B,CRYPTO_R_n);
kem.c:       |                        ^~~~~~~~~
kem.c:       |                        |
kem.c:       |                        int *
kem.c: kem.c:27:60: note: expected 'unsigned int *' but argument is of type 'int *'
kem.c:    27 | static void bytes_from_modq(unsigned char *y,unsigned int *x,int xlen)
kem.c:       |                                              ~~~~~~~~~~~~~~^
kem.c: kem.c:340:12: warning: unused variable 'bit' [-Wunused-variable]
kem.c: ...
rng.c: rng.c: In function 'AES256_ECB':
rng.c: rng.c:123:6: warning: variable 'ciphertext_len' set but not used [-Wunused-but-set-variable]
rng.c:   123 |  int ciphertext_len;
rng.c:       |      ^~~~~~~~~~~~~~

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

Implementation	Compiler
`T:ref`	`gcc -march=native -mtune=native -O2 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)`
`T:ref`	`gcc -march=native -mtune=native -O3 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)`
`T:ref`	`gcc -march=native -mtune=native -O -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)`
`T:ref`	`gcc -march=native -mtune=native -Os -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)`

Namespace violations

kem.o CDT_TABLE D
kem.o INTT T
kem.o NTT T
kem.o NTT_new T
kem.o SHA256_INT T
kem.o SHA256_OS T
kem.o Sample_CDT T
kem.o _BINT_to_OS T
kem.o _OS_to_BINT T
kem.o _R_KEM_Enc T
kem.o _R_KEM_GenTrinary T
kem.o _R_KEM_dec T
kem.o fmodq T
kem.o inv_ntt_512_12289 D
kem.o ntt_512_12289 D
kem.o p_add T
kem.o p_mul T
kem.o p_muladd T
kem.o random_modq T
rng.o AES256_CTR_DRBG_Update T
rng.o AES256_ECB T
rng.o DRBG_ctx B
rng.o handleErrors T
rng.o seedexpander T
rng.o seedexpander_init T
rng.o xrandombytes T
rng.o xrandombytes_init T

Number of similar (implementation,compiler) pairs: 9, namely:

Implementation	Compiler
`T:ref`	`clang -march=native -O2 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`
`T:ref`	`clang -march=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`
`T:ref`	`clang -march=native -O -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`
`T:ref`	`clang -march=native -Os -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`
`T:ref`	`clang -mcpu=native -O3 -fwrapv -Qunused-arguments -fPIC -fPIE -gdwarf-4 -Wall (Debian_Clang_11.0.1)`
`T:ref`	`gcc -march=native -mtune=native -O2 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)`
`T:ref`	`gcc -march=native -mtune=native -O3 -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)`
`T:ref`	`gcc -march=native -mtune=native -O -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)`
`T:ref`	`gcc -march=native -mtune=native -Os -fwrapv -fPIC -fPIE -gdwarf-4 -Wall (10.2.1_20210110)`