GOSTSec
/
ccminer-gostd-lite
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity
Browse Source

Simplification of the SIMD hash code (remove unnecessary lookup tables), increase X11 throughput value somewhat

master
Christian Buchner 11 years ago
parent
baf6c9e4e3
commit
44d38e3a9a
2 changed files with 16 additions and 192 deletions
Whitespace
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
Unified View
Diff Options
Show Stats Download Patch File Download Diff File
  1. 206
      x11/cuda_x11_simd512.cu
  2. 2
      x11/x11.cu

206
x11/cuda_x11_simd512.cu
Unescape View File

@ -44,79 +44,6 @@ const int h_FFT[256] =
-93, -125, 125, -86, 86, 117, -117, -91, 91, 42, -42, 87, -87, -117, 117, 102, -102 -93, -125, 125, -86, 86, 117, -117, -91, 91, 42, -42, 87, -87, -117, 117, 102, -102
}; };
__constant__ int c_P4[32][4];
static const int h_P4[32][4] = {
{ 2, 34, 18, 50 },
{ 6, 38, 22, 54 },
{ 0, 32, 16, 48 },
{ 4, 36, 20, 52 },
{ 14, 46, 30, 62 },
{ 10, 42, 26, 58 },
{ 12, 44, 28, 60 },
{ 8, 40, 24, 56 },
{ 15, 47, 31, 63 },
{ 13, 45, 29, 61 },
{ 3, 35, 19, 51 },
{ 1, 33, 17, 49 },
{ 9, 41, 25, 57 },
{ 11, 43, 27, 59 },
{ 5, 37, 21, 53 },
{ 7, 39, 23, 55 },
{ 8, 40, 24, 56 },
{ 4, 36, 20, 52 },
{ 14, 46, 30, 62 },
{ 2, 34, 18, 50 },
{ 6, 38, 22, 54 },
{ 10, 42, 26, 58 },
{ 0, 32, 16, 48 },
{ 12, 44, 28, 60 },
{ 70, 102, 86, 118 },
{ 64, 96, 80, 112 },
{ 72, 104, 88, 120 },
{ 78, 110, 94, 126 },
{ 76, 108, 92, 124 },
{ 74, 106, 90, 122 },
{ 66, 98, 82, 114 },
{ 68, 100, 84, 116 }
};
__constant__ int c_Q4[32][4];
static const int h_Q4[32][4] = {
{ 66, 98, 82, 114 },
{ 70, 102, 86, 118 },
{ 64, 96, 80, 112 },
{ 68, 100, 84, 116 },
{ 78, 110, 94, 126 },
{ 74, 106, 90, 122 },
{ 76, 108, 92, 124 },
{ 72, 104, 88, 120 },
{ 79, 111, 95, 127 },
{ 77, 109, 93, 125 },
{ 67, 99, 83, 115 },
{ 65, 97, 81, 113 },
{ 73, 105, 89, 121 },
{ 75, 107, 91, 123 },
{ 69, 101, 85, 117 },
{ 71, 103, 87, 119 },
{ 9, 41, 25, 57 },
{ 5, 37, 21, 53 },
{ 15, 47, 31, 63 },
{ 3, 35, 19, 51 },
{ 7, 39, 23, 55 },
{ 11, 43, 27, 59 },
{ 1, 33, 17, 49 },
{ 13, 45, 29, 61 },
{ 71, 103, 87, 119 },
{ 65, 97, 81, 113 },
{ 73, 105, 89, 121 },
{ 79, 111, 95, 127 },
{ 77, 109, 93, 125 },
{ 75, 107, 91, 123 },
{ 67, 99, 83, 115 },
{ 69, 101, 85, 117 }
};
__constant__ int c_P8[32][8]; __constant__ int c_P8[32][8];
static const int h_P8[32][8] = { static const int h_P8[32][8] = {
{ 2, 66, 34, 98, 18, 82, 50, 114 }, { 2, 66, 34, 98, 18, 82, 50, 114 },
@ -189,49 +116,6 @@ static const int h_Q8[32][8] = {
{ 133, 197, 165, 229, 149, 213, 181, 245 }, { 133, 197, 165, 229, 149, 213, 181, 245 },
}; };
__constant__ int c_FFT64_8_8_Twiddle[64];
static const int h_FFT64_8_8_Twiddle[64] = {
1, 1, 1, 1, 1, 1, 1, 1,
1, 2, 4, 8, 16, 32, 64, 128,
1, 60, 2, 120, 4, -17, 8, -34,
1, 120, 8, -68, 64, -30, -2, 17,
1, 46, 60, -67, 2, 92, 120, 123,
1, 92, -17, -22, 32, 117, -30, 67,
1, -67, 120, -73, 8, -22, -68, -70,
1, 123, -34, -70, 128, 67, 17, 35,
};
__constant__ int c_FFT128_2_64_Twiddle[64];
static const int h_FFT128_2_64_Twiddle[64] = {
1, -118, 46, -31, 60, 116, -67, -61,
2, 21, 92, -62, 120, -25, 123, -122,
4, 42, -73, -124, -17, -50, -11, 13,
8, 84, 111, 9, -34, -100, -22, 26,
16, -89, -35, 18, -68, 57, -44, 52,
32, 79, -70, 36, 121, 114, -88, 104,
64, -99, 117, 72, -15, -29, 81, -49,
128, 59, -23, -113, -30, -58, -95, -98
};
__constant__ int c_FFT128_16_8_Twiddle[128];
static const int h_FFT128_16_8_Twiddle[128] = {
1, 1, 1, 1, 1, 1, 1, 1,
1, 2, 4, 8, 16, 32, 64, 128,
1, 60, 2, 120, 4, -17, 8, -34,
1, 120, 8, -68, 64, -30, -2, 17,
1, 46, 60, -67, 2, 92, 120, 123,
1, 92, -17, -22, 32, 117, -30, 67,
1, -67, 120, -73, 8, -22, -68, -70,
1, 123, -34, -70, 128, 67, 17, 35,
1, -118, 46, -31, 60, 116, -67, -61,
1, 21, -73, 9, -68, 114, 81, -98,
1, 116, 92, -122, -17, 84, -22, 18,
1, -25, 111, 52, -15, 118, -123, -9,
1, -31, -67, 21, 120, -122, -73, -50,
1, -62, -11, -89, 121, -49, -46, 25,
1, -61, 123, -50, -34, 18, -70, -99,
1, -122, -22, 114, -30, 62, -111, -79 };
__constant__ int c_FFT128_8_16_Twiddle[128]; __constant__ int c_FFT128_8_16_Twiddle[128];
static const int h_FFT128_8_16_Twiddle[128] = { static const int h_FFT128_8_16_Twiddle[128] = {
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
@ -309,7 +193,7 @@ __device__ __forceinline__ void STEP8_MAJ(const uint32_t *w, const int i, const
} }
} }
__device__ __forceinline__ void Round8(uint32_t A[128], const int y[128], int i, __device__ __forceinline__ void Round8(uint32_t A[32], const int y[256], int i,
int r, int s, int t, int u) { int r, int s, int t, int u) {
int code = i<2? 185: 233; int code = i<2? 185: 233;
uint32_t w[8][8]; uint32_t w[8][8];
@ -464,32 +348,36 @@ X(j) = (u-v) << n; \
DO_REDUCE(15); DO_REDUCE(15);
BUTTERFLY( 0, 4, 0); BUTTERFLY( 0, 4, 0);
BUTTERFLY( 8, 12, 0);
BUTTERFLY( 1, 5, 2); BUTTERFLY( 1, 5, 2);
BUTTERFLY( 9, 13, 2);
BUTTERFLY( 2, 6, 4); BUTTERFLY( 2, 6, 4);
BUTTERFLY(10, 14, 4);
BUTTERFLY( 3, 7, 6); BUTTERFLY( 3, 7, 6);
BUTTERFLY( 8, 12, 0);
BUTTERFLY( 9, 13, 2);
BUTTERFLY(10, 14, 4);
BUTTERFLY(11, 15, 6); BUTTERFLY(11, 15, 6);
DO_REDUCE(5); DO_REDUCE(5);
DO_REDUCE(7); DO_REDUCE(7);
DO_REDUCE(13); DO_REDUCE(13);
DO_REDUCE(15); DO_REDUCE(15);
BUTTERFLY( 0, 2, 0); BUTTERFLY( 0, 2, 0);
BUTTERFLY( 1, 3, 4);
BUTTERFLY( 4, 6, 0); BUTTERFLY( 4, 6, 0);
BUTTERFLY( 5, 7, 4);
BUTTERFLY( 8, 10, 0); BUTTERFLY( 8, 10, 0);
BUTTERFLY(12, 14, 0); BUTTERFLY(12, 14, 0);
BUTTERFLY( 1, 3, 4);
BUTTERFLY( 5, 7, 4);
BUTTERFLY( 9, 11, 4); BUTTERFLY( 9, 11, 4);
BUTTERFLY(13, 15, 4); BUTTERFLY(13, 15, 4);
BUTTERFLY( 0, 1, 0); BUTTERFLY( 0, 1, 0);
BUTTERFLY( 2, 3, 0); BUTTERFLY( 2, 3, 0);
BUTTERFLY( 4, 5, 0); BUTTERFLY( 4, 5, 0);
BUTTERFLY( 6, 7, 0); BUTTERFLY( 6, 7, 0);
BUTTERFLY( 8, 9, 0); BUTTERFLY( 8, 9, 0);
BUTTERFLY(10, 11, 0); BUTTERFLY(10, 11, 0);
BUTTERFLY(12, 13, 0); BUTTERFLY(12, 13, 0);
@ -518,65 +406,6 @@ X(j) = (u-v) << n; \
#undef BUTTERFLY #undef BUTTERFLY
} }
__device__ __forceinline__ void FFT_64(int *y) {
/*
* FFT_64 using w=46 as 64th root of unity
* decimation in frequency (DIF) radix-8 NTT.
* Output data is in revbin_permuted order.
*/
int i;
/*
* Begin with 8 parallels DIF FFT_8.
*/
#pragma unroll 8
for (i=0; i<8; i++) {
FFT_8(y+i,8);
}
/*
* Multiply by twiddle factors
*/
#pragma unroll 56
for (i=8; i<64; i++)
if (i & 7) y[i] = REDUCE(y[i]*c_FFT64_8_8_Twiddle[i]);
/*
* Finish with 8 paralles DIF FFT_8.
*/
#pragma unroll 8
for (i=0; i<8; i++) {
FFT_8(y+8*i,1);
}
}
__device__ __forceinline__ void FFT_128_halfzero(int *y) {
/*
* FFT_128 using w=139 as 128th root of unity.
* Decimation in frequency (DIF) NTT.
* Output data is in revbin_permuted order.
* In place.
*/
const int tmp = y[63];
int i;
#pragma unroll 63
for (i=0; i<63; i++)
y[64+i] = REDUCE(y[i] * c_FFT128_2_64_Twiddle[i]);
/* handle X^127 */
y[63] = REDUCE(tmp + 1);
y[127] = REDUCE((tmp - 1) * c_FFT128_2_64_Twiddle[63]);
FFT_64(y);
FFT_64(y+64);
}
__device__ __forceinline__ void FFT_128_full(int *y) { __device__ __forceinline__ void FFT_128_full(int *y) {
int i; int i;
@ -596,7 +425,7 @@ __device__ __forceinline__ void FFT_128_full(int *y) {
} }
__device__ __forceinline__ void FFT_256_halfzero(int *y) { __device__ __forceinline__ void FFT_256_halfzero(int y[256]) {
int i; int i;
@ -621,7 +450,7 @@ __device__ __forceinline__ void FFT_256_halfzero(int *y) {
} }
__device__ __forceinline__ void SIMD_Compress(uint32_t A[128], const int *expanded, const uint32_t *M) { __device__ __forceinline__ void SIMD_Compress(uint32_t A[32], const int *expanded, const uint32_t *M) {
uint32_t IV[4][8]; uint32_t IV[4][8];
int i; int i;
@ -666,7 +495,7 @@ __device__ __forceinline__ void SIMD_Compress(uint32_t A[128], const int *expand
__device__ __forceinline__ void SIMDHash(const uint32_t *data, uint32_t *hashval) { __device__ __forceinline__ void SIMDHash(const uint32_t *data, uint32_t *hashval) {
uint32_t A[128]; uint32_t A[32];
int i; int i;
uint32_t buffer[16]; uint32_t buffer[16];
@ -699,7 +528,7 @@ __device__ __forceinline__ void SIMDHash(const uint32_t *data, uint32_t *hashval
} }
/* Compression Function */ /* Compression Function */
SIMD_Compress(A, expanded, buffer); SIMD_Compress(A, expanded, buffer);
/* Padding Round with known input (hence the FFT can be precomputed) */ /* Padding Round with known input (hence the FFT can be precomputed) */
buffer[0] = 512; buffer[0] = 512;
@ -735,13 +564,8 @@ __host__ void x11_simd512_cpu_init(int thr_id, int threads)
{ {
cudaMemcpyToSymbol( c_IV_512, h_IV_512, sizeof(h_IV_512), 0, cudaMemcpyHostToDevice); cudaMemcpyToSymbol( c_IV_512, h_IV_512, sizeof(h_IV_512), 0, cudaMemcpyHostToDevice);
cudaMemcpyToSymbol( c_FFT, h_FFT, sizeof(h_FFT), 0, cudaMemcpyHostToDevice); cudaMemcpyToSymbol( c_FFT, h_FFT, sizeof(h_FFT), 0, cudaMemcpyHostToDevice);
cudaMemcpyToSymbol( c_P4, h_P4, sizeof(h_P4), 0, cudaMemcpyHostToDevice);
cudaMemcpyToSymbol( c_Q4, h_Q4, sizeof(h_Q4), 0, cudaMemcpyHostToDevice);
cudaMemcpyToSymbol( c_P8, h_P8, sizeof(h_P8), 0, cudaMemcpyHostToDevice); cudaMemcpyToSymbol( c_P8, h_P8, sizeof(h_P8), 0, cudaMemcpyHostToDevice);
cudaMemcpyToSymbol( c_Q8, h_Q8, sizeof(h_Q8), 0, cudaMemcpyHostToDevice); cudaMemcpyToSymbol( c_Q8, h_Q8, sizeof(h_Q8), 0, cudaMemcpyHostToDevice);
cudaMemcpyToSymbol( c_FFT64_8_8_Twiddle, h_FFT64_8_8_Twiddle, sizeof(h_FFT64_8_8_Twiddle), 0, cudaMemcpyHostToDevice);
cudaMemcpyToSymbol( c_FFT128_2_64_Twiddle, h_FFT128_2_64_Twiddle, sizeof(h_FFT128_2_64_Twiddle), 0, cudaMemcpyHostToDevice);
cudaMemcpyToSymbol( c_FFT128_16_8_Twiddle, h_FFT128_16_8_Twiddle, sizeof(h_FFT128_16_8_Twiddle), 0, cudaMemcpyHostToDevice);
cudaMemcpyToSymbol( c_FFT128_8_16_Twiddle, h_FFT128_8_16_Twiddle, sizeof(h_FFT128_8_16_Twiddle), 0, cudaMemcpyHostToDevice); cudaMemcpyToSymbol( c_FFT128_8_16_Twiddle, h_FFT128_8_16_Twiddle, sizeof(h_FFT128_8_16_Twiddle), 0, cudaMemcpyHostToDevice);
cudaMemcpyToSymbol( c_FFT256_2_128_Twiddle, h_FFT256_2_128_Twiddle, sizeof(h_FFT256_2_128_Twiddle), 0, cudaMemcpyHostToDevice); cudaMemcpyToSymbol( c_FFT256_2_128_Twiddle, h_FFT256_2_128_Twiddle, sizeof(h_FFT256_2_128_Twiddle), 0, cudaMemcpyHostToDevice);
} }

2
x11/x11.cu
Unescape View File

@ -168,7 +168,7 @@ extern "C" int scanhash_x11(int thr_id, uint32_t *pdata,
const uint32_t Htarg = ptarget[7]; const uint32_t Htarg = ptarget[7];
const int throughput = 256*256; // 100; const int throughput = 256*256*16;
static bool init[8] = {0,0,0,0,0,0,0,0}; static bool init[8] = {0,0,0,0,0,0,0,0};
if (!init[thr_id]) if (!init[thr_id])

Write Preview
Loading…
Cancel
Save