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blake: speed +10%, no more size conversions

master
Tanguy Pruvot 10 years ago
parent
2ebfb546a6
commit
3341e0324f
2 changed files with 44 additions and 49 deletions
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  1. 91
      blake32.cu
  2. 2
      cpu-miner.c

91
blake32.cu
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@ -31,44 +31,45 @@ extern "C" void blake32hash(void *output, const void *input)
// in cpu-miner.c // in cpu-miner.c
extern bool opt_n_threads; extern bool opt_n_threads;
extern bool opt_benchmark; extern bool opt_benchmark;
//extern bool opt_debug;
extern int device_map[8]; extern int device_map[8];
extern cudaError_t MyStreamSynchronize(cudaStream_t stream, int situation, int thr_id); extern cudaError_t MyStreamSynchronize(cudaStream_t stream, int situation, int thr_id);
__constant__ __constant__
static uint32_t c_Target[8]; static uint32_t __align__(32) c_PaddedMessage80[32]; // padded message (80 bytes + padding)
__constant__ __constant__
static uint32_t __align__(32) c_PaddedMessage80[32]; // padded message (80 bytes + padding) static uint32_t __align__(32) c_Target[8];
#define MAXU 0xffffffffU
static uint32_t *d_resNounce[8]; static uint32_t *d_resNounce[8];
static uint32_t *h_resNounce[8]; static uint32_t *h_resNounce[8];
__constant__ __constant__
static uint8_t c_sigma[16][16]; static uint32_t __align__(32) c_sigma[16][16];
const uint8_t host_sigma[16][16] = /* prefer uint32_t to prevent size conversions = speed +5/10 % */
{ const uint32_t host_sigma[16][16] = {
{ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 }, { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 },
{14, 10, 4, 8, 9, 15, 13, 6, 1, 12, 0, 2, 11, 7, 5, 3 }, {14, 10, 4, 8, 9, 15, 13, 6, 1, 12, 0, 2, 11, 7, 5, 3 },
{11, 8, 12, 0, 5, 2, 15, 13, 10, 14, 3, 6, 7, 1, 9, 4 }, {11, 8, 12, 0, 5, 2, 15, 13, 10, 14, 3, 6, 7, 1, 9, 4 },
{ 7, 9, 3, 1, 13, 12, 11, 14, 2, 6, 5, 10, 4, 0, 15, 8 }, { 7, 9, 3, 1, 13, 12, 11, 14, 2, 6, 5, 10, 4, 0, 15, 8 },
{ 9, 0, 5, 7, 2, 4, 10, 15, 14, 1, 11, 12, 6, 8, 3, 13 }, { 9, 0, 5, 7, 2, 4, 10, 15, 14, 1, 11, 12, 6, 8, 3, 13 },
{ 2, 12, 6, 10, 0, 11, 8, 3, 4, 13, 7, 5, 15, 14, 1, 9 }, { 2, 12, 6, 10, 0, 11, 8, 3, 4, 13, 7, 5, 15, 14, 1, 9 },
{12, 5, 1, 15, 14, 13, 4, 10, 0, 7, 6, 3, 9, 2, 8, 11 }, {12, 5, 1, 15, 14, 13, 4, 10, 0, 7, 6, 3, 9, 2, 8, 11 },
{13, 11, 7, 14, 12, 1, 3, 9, 5, 0, 15, 4, 8, 6, 2, 10 }, {13, 11, 7, 14, 12, 1, 3, 9, 5, 0, 15, 4, 8, 6, 2, 10 },
{ 6, 15, 14, 9, 11, 3, 0, 8, 12, 2, 13, 7, 1, 4, 10, 5 }, { 6, 15, 14, 9, 11, 3, 0, 8, 12, 2, 13, 7, 1, 4, 10, 5 },
{10, 2, 8, 4, 7, 6, 1, 5, 15, 11, 9, 14, 3, 12, 13 , 0 }, {10, 2, 8, 4, 7, 6, 1, 5, 15, 11, 9, 14, 3, 12, 13 , 0 },
{ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 }, { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 },
{14, 10, 4, 8, 9, 15, 13, 6, 1, 12, 0, 2, 11, 7, 5, 3 }, {14, 10, 4, 8, 9, 15, 13, 6, 1, 12, 0, 2, 11, 7, 5, 3 },
{11, 8, 12, 0, 5, 2, 15, 13, 10, 14, 3, 6, 7, 1, 9, 4 }, {11, 8, 12, 0, 5, 2, 15, 13, 10, 14, 3, 6, 7, 1, 9, 4 },
{ 7, 9, 3, 1, 13, 12, 11, 14, 2, 6, 5, 10, 4, 0, 15, 8 }, { 7, 9, 3, 1, 13, 12, 11, 14, 2, 6, 5, 10, 4, 0, 15, 8 },
{ 9, 0, 5, 7, 2, 4, 10, 15, 14, 1, 11, 12, 6, 8, 3, 13 }, { 9, 0, 5, 7, 2, 4, 10, 15, 14, 1, 11, 12, 6, 8, 3, 13 },
{ 2, 12, 6, 10, 0, 11, 8, 3, 4, 13, 7, 5, 15, 14, 1, 9 } { 2, 12, 6, 10, 0, 11, 8, 3, 4, 13, 7, 5, 15, 14, 1, 9 }
}; };
__device__ __constant__ __device__ __constant__
static const uint32_t c_IV256[8] = { static const uint32_t __align__(32) c_IV256[8] = {
SPH_C32(0x6A09E667), SPH_C32(0xBB67AE85), SPH_C32(0x6A09E667), SPH_C32(0xBB67AE85),
SPH_C32(0x3C6EF372), SPH_C32(0xA54FF53A), SPH_C32(0x3C6EF372), SPH_C32(0xA54FF53A),
SPH_C32(0x510E527F), SPH_C32(0x9B05688C), SPH_C32(0x510E527F), SPH_C32(0x9B05688C),
@ -76,8 +77,7 @@ static const uint32_t c_IV256[8] = {
}; };
__device__ __constant__ __device__ __constant__
static const uint32_t __align__(32) c_u256[16] = {
static const uint32_t c_u256[16] = {
SPH_C32(0x243F6A88), SPH_C32(0x85A308D3), SPH_C32(0x243F6A88), SPH_C32(0x85A308D3),
SPH_C32(0x13198A2E), SPH_C32(0x03707344), SPH_C32(0x13198A2E), SPH_C32(0x03707344),
SPH_C32(0xA4093822), SPH_C32(0x299F31D0), SPH_C32(0xA4093822), SPH_C32(0x299F31D0),
@ -112,13 +112,15 @@ static const uint32_t c_u256[16] = {
} while (0) } while (0)
#endif #endif
#define GS(a,b,c,d,e) { \ #define GS(a,b,c,d,x) { \
v[a] += (m[sigma[i][e]] ^ u256[sigma[i][e+1]]) + v[b]; \ const uint32_t idx1 = c_sigma[i][x]; \
v[d] = SPH_ROTR32(v[d] ^ v[a], 16); \ const uint32_t idx2 = c_sigma[i][x+1]; \
v[a] += (m[idx1] ^ u256[idx2]) + v[b]; \
v[d] = SPH_ROTL32(v[d] ^ v[a], 16); \
v[c] += v[d]; \ v[c] += v[d]; \
v[b] = SPH_ROTR32(v[b] ^ v[c], 12); \ v[b] = SPH_ROTR32(v[b] ^ v[c], 12); \
\ \
v[a] += (m[sigma[i][e+1]] ^ u256[sigma[i][e]]) + v[b]; \ v[a] += (m[idx2] ^ u256[idx1]) + v[b]; \
v[d] = SPH_ROTR32(v[d] ^ v[a], 8); \ v[d] = SPH_ROTR32(v[d] ^ v[a], 8); \
v[c] += v[d]; \ v[c] += v[d]; \
v[b] = SPH_ROTR32(v[b] ^ v[c], 7); \ v[b] = SPH_ROTR32(v[b] ^ v[c], 7); \
@ -127,11 +129,13 @@ static const uint32_t c_u256[16] = {
#define BLAKE256_ROUNDS 14 #define BLAKE256_ROUNDS 14
__device__ static __device__ static
void blake256_compress(uint32_t *h, uint32_t *block, uint8_t ((*sigma)[16]), const uint32_t *u256, const uint32_t T0, uint8_t nullt = 1) void blake256_compress(uint32_t *h, const uint32_t *block, const uint32_t T0)
{ {
uint32_t /* __align__(8) */ v[16]; uint32_t /* __align__(8) */ v[16];
uint32_t /* __align__(8) */ m[16]; uint32_t /* __align__(8) */ m[16];
const uint32_t* u256 = c_u256;
//#pragma unroll //#pragma unroll
for (int i = 0; i < 16; ++i) { for (int i = 0; i < 16; ++i) {
m[i] = block[i]; m[i] = block[i];
@ -170,16 +174,6 @@ void blake256_compress(uint32_t *h, uint32_t *block, uint8_t ((*sigma)[16]), con
h[i % 8] ^= v[i]; h[i % 8] ^= v[i];
} }
#if __CUDA_ARCH__ >= 200
/* memory should be aligned to use __nvvm_memset */
#if (__NV_POINTER_SIZE == 64)
# define SZCT uint64_t
#else
# define SZCT uint32_t
#endif
extern __device__ __device_builtin__ void __nvvm_memset(uint8_t *, unsigned char, SZCT, int);
#endif
__global__ __global__
void blake256_gpu_hash_80(uint32_t threads, uint32_t startNounce, uint32_t *resNounce) void blake256_gpu_hash_80(uint32_t threads, uint32_t startNounce, uint32_t *resNounce)
{ {
@ -194,7 +188,7 @@ void blake256_gpu_hash_80(uint32_t threads, uint32_t startNounce, uint32_t *resN
for(int i=0; i<8; i++) for(int i=0; i<8; i++)
h[i] = c_IV256[i]; h[i] = c_IV256[i];
blake256_compress(h, c_PaddedMessage80, c_sigma, c_u256, 0x200); /* 512 = 0x200 */ blake256_compress(h, c_PaddedMessage80, 0x200); /* 512 = 0x200 */
// ------ Close: Bytes 64 to 80 ------ // ------ Close: Bytes 64 to 80 ------
@ -217,7 +211,7 @@ void blake256_gpu_hash_80(uint32_t threads, uint32_t startNounce, uint32_t *resN
msg[14] = 0; msg[14] = 0;
msg[15] = 0x280; msg[15] = 0x280;
blake256_compress(h, msg, c_sigma, c_u256, 0x280); blake256_compress(h, msg, 0x280);
for (int i = 7; i >= 0; i--) { for (int i = 7; i >= 0; i--) {
uint32_t hash = cuda_swab32(h[i]); uint32_t hash = cuda_swab32(h[i]);
@ -239,17 +233,18 @@ __host__
uint32_t blake256_cpu_hash_80(int thr_id, uint32_t threads, uint32_t startNounce) uint32_t blake256_cpu_hash_80(int thr_id, uint32_t threads, uint32_t startNounce)
{ {
const int threadsperblock = TPB; const int threadsperblock = TPB;
uint32_t result = MAXU;
dim3 grid((threads + threadsperblock-1)/threadsperblock); dim3 grid((threads + threadsperblock-1)/threadsperblock);
dim3 block(threadsperblock); dim3 block(threadsperblock);
size_t shared_size = 0; size_t shared_size = 0;
uint32_t result = 0xffffffffU; /* Check error on Ctrl+C or kill to prevent segfaults on exit */
cudaMemset(d_resNounce[thr_id], 0xff, sizeof(uint32_t)); if (cudaMemset(d_resNounce[thr_id], 0xff, sizeof(uint32_t)) != cudaSuccess)
return result;
blake256_gpu_hash_80<<<grid, block, shared_size>>>(threads, startNounce, d_resNounce[thr_id]); blake256_gpu_hash_80<<<grid, block, shared_size>>>(threads, startNounce, d_resNounce[thr_id]);
MyStreamSynchronize(NULL, 1, thr_id); cudaDeviceSynchronize();
if (cudaSuccess == cudaMemcpy(h_resNounce[thr_id], d_resNounce[thr_id], sizeof(uint32_t), cudaMemcpyDeviceToHost)) { if (cudaSuccess == cudaMemcpy(h_resNounce[thr_id], d_resNounce[thr_id], sizeof(uint32_t), cudaMemcpyDeviceToHost)) {
cudaThreadSynchronize(); cudaThreadSynchronize();
result = *h_resNounce[thr_id]; result = *h_resNounce[thr_id];
@ -258,7 +253,7 @@ uint32_t blake256_cpu_hash_80(int thr_id, uint32_t threads, uint32_t startNounce
} }
__host__ __host__
void blake256_cpu_setBlock_80(uint32_t *pdata, const void *ptarget) void blake256_cpu_setBlock_80(uint32_t *pdata, const uint32_t *ptarget)
{ {
uint32_t PaddedMessage[32]; uint32_t PaddedMessage[32];
memcpy(PaddedMessage, pdata, 80); memcpy(PaddedMessage, pdata, 80);
@ -291,7 +286,7 @@ extern "C" int scanhash_blake32(int thr_id, uint32_t *pdata, const uint32_t *pta
if (throughput < (TPB * 2048)) if (throughput < (TPB * 2048))
applog(LOG_WARNING, "throughput=%u, start=%x, max=%x", throughput, first_nonce, max_nonce); applog(LOG_WARNING, "throughput=%u, start=%x, max=%x", throughput, first_nonce, max_nonce);
blake256_cpu_setBlock_80(pdata, (void*)ptarget); blake256_cpu_setBlock_80(pdata, ptarget);
do { do {
// GPU HASH // GPU HASH

2
cpu-miner.c
Unescape View File

@ -962,7 +962,7 @@ static void *miner_thread(void *userdata)
max64 = 0x1fffLL; max64 = 0x1fffLL;
break; break;
case ALGO_BLAKE: case ALGO_BLAKE:
/* based on the 750Ti hashrate */ /* based on the 750Ti hashrate (100kH) */
max64 = 0x3ffffffLL; max64 = 0x3ffffffLL;
break; break;
default: default:

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