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blake: some fine tuning + cleanup

master
Tanguy Pruvot 10 years ago
parent
5bc969fa57
commit
187e293f71
1 changed files with 41 additions and 46 deletions
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  1. 85
      blake32.cu

85
blake32.cu
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@ -16,8 +16,9 @@ extern "C" {
#include <memory.h> #include <memory.h>
} }
/* threads per block */ /* threads per block and throughput (intensity) */
#define TPB 128 #define TPB 128
#define INTENSITY (1 << 20) // = 1048576 nonces per call
/* added in sph_blake.c */ /* added in sph_blake.c */
extern "C" int blake256_rounds = 14; extern "C" int blake256_rounds = 14;
@ -25,15 +26,15 @@ extern "C" int blake256_rounds = 14;
/* hash by cpu with blake 256 */ /* hash by cpu with blake 256 */
extern "C" void blake256hash(void *output, const void *input, int8_t rounds = 14) extern "C" void blake256hash(void *output, const void *input, int8_t rounds = 14)
{ {
unsigned char hash[64]; uchar hash[64];
sph_blake256_context ctx; sph_blake256_context ctx;
blake256_rounds = rounds; blake256_rounds = rounds;
sph_blake256_init(&ctx); sph_blake256_init(&ctx);
sph_blake256(&ctx, input, 80); sph_blake256(&ctx, input, 80);
sph_blake256_close(&ctx, hash); sph_blake256_close(&ctx, hash);
memcpy(output, hash, 32); memcpy(output, hash, 32);
} }
@ -46,11 +47,10 @@ extern bool opt_n_threads;
extern bool opt_tracegpu; extern bool opt_tracegpu;
extern int device_map[8]; extern int device_map[8];
__constant__
#if PRECALC64 #if PRECALC64
static uint32_t __align__(32) c_data[11]; __constant__ uint32_t _ALIGN(32) d_data[12];
#else #else
static uint32_t __align__(32) c_data[20]; __constant__ static uint32_t _ALIGN(32) c_data[20];
/* midstate hash cache, this algo is run on 2 parts */ /* midstate hash cache, this algo is run on 2 parts */
__device__ static uint32_t cache[8]; __device__ static uint32_t cache[8];
__device__ static uint32_t prevsum = 0; __device__ static uint32_t prevsum = 0;
@ -62,14 +62,13 @@ extern "C" uint32_t crc32_u32t(const uint32_t *buf, size_t size);
static uint32_t *d_resNonce[8]; static uint32_t *d_resNonce[8];
static uint32_t *h_resNonce[8]; static uint32_t *h_resNonce[8];
/* max count of found nounces in one call */ /* max count of found nonces in one call */
#define NBN 2 #define NBN 2
static uint32_t extra_results[NBN] = { MAXU }; static uint32_t extra_results[NBN] = { MAXU };
/* prefer uint32_t to prevent size conversions = speed +5/10 % */ /* prefer uint32_t to prevent size conversions = speed +5/10 % */
__constant__ __constant__
static uint32_t __align__(32) c_sigma[16][16]; static uint32_t _ALIGN(32) c_sigma[16][16] = {
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 },
@ -136,8 +135,8 @@ static const uint32_t __align__(32) c_Padding[16] = {
__device__ static __device__ static
void blake256_compress(uint32_t *h, const uint32_t *block, const uint32_t T0, const int rounds) void blake256_compress(uint32_t *h, const uint32_t *block, const uint32_t T0, const int rounds)
{ {
uint32_t /* __align__(8) */ m[16]; uint32_t /*_ALIGN(8)*/ m[16];
uint32_t /* __align__(8) */ v[16]; uint32_t v[16];
m[0] = block[0]; m[0] = block[0];
m[1] = block[1]; m[1] = block[1];
@ -193,13 +192,13 @@ void blake256_compress(uint32_t *h, const uint32_t *block, const uint32_t T0, co
#if !PRECALC64 /* original method */ #if !PRECALC64 /* original method */
__global__ __global__
void blake256_gpu_hash_80(const uint32_t threads, const uint32_t startNonce, uint32_t *resNounce, void blake256_gpu_hash_80(const uint32_t threads, const uint32_t startNonce, uint32_t *resNonce,
const uint64_t highTarget, const int crcsum, const int rounds) const uint64_t highTarget, const int crcsum, const int rounds)
{ {
uint32_t thread = (blockDim.x * blockIdx.x + threadIdx.x); uint32_t thread = (blockDim.x * blockIdx.x + threadIdx.x);
if (thread < threads) if (thread < threads)
{ {
const uint32_t nounce = startNonce + thread; const uint32_t nonce = startNonce + thread;
uint32_t h[8]; uint32_t h[8];
#pragma unroll #pragma unroll
@ -227,7 +226,7 @@ void blake256_gpu_hash_80(const uint32_t threads, const uint32_t startNonce, uin
ending[0] = c_data[16]; ending[0] = c_data[16];
ending[1] = c_data[17]; ending[1] = c_data[17];
ending[2] = c_data[18]; ending[2] = c_data[18];
ending[3] = nounce; /* our tested value */ ending[3] = nonce; /* our tested value */
blake256_compress(h, ending, 640, rounds); blake256_compress(h, ending, 640, rounds);
@ -238,16 +237,16 @@ void blake256_gpu_hash_80(const uint32_t threads, const uint32_t startNonce, uin
uint64_t high64 = ((uint64_t*)h)[3]; uint64_t high64 = ((uint64_t*)h)[3];
if (high64 <= highTarget) if (high64 <= highTarget)
#if NBN == 2 #if NBN == 2
/* keep the smallest nounce, + extra one if found */ /* keep the smallest nonce, + extra one if found */
if (resNounce[0] > nounce) { if (resNonce[0] > nonce) {
// printf("%llx %llx \n", high64, highTarget); // printf("%llx %llx \n", high64, highTarget);
resNounce[1] = resNounce[0]; resNonce[1] = resNonce[0];
resNounce[0] = nounce; resNonce[0] = nonce;
} }
else else
resNounce[1] = nounce; resNonce[1] = nonce;
#else #else
resNounce[0] = nounce; resNonce[0] = nonce;
#endif #endif
} }
} }
@ -284,7 +283,6 @@ void blake256_cpu_setBlock_80(uint32_t *pdata, const uint32_t *ptarget)
uint32_t data[20]; uint32_t data[20];
memcpy(data, pdata, 80); memcpy(data, pdata, 80);
CUDA_SAFE_CALL(cudaMemcpyToSymbol(c_data, data, sizeof(data), 0, cudaMemcpyHostToDevice)); CUDA_SAFE_CALL(cudaMemcpyToSymbol(c_data, data, sizeof(data), 0, cudaMemcpyHostToDevice));
CUDA_SAFE_CALL(cudaMemcpyToSymbol(c_sigma, host_sigma, sizeof(host_sigma), 0, cudaMemcpyHostToDevice));
} }
#else #else
@ -292,52 +290,50 @@ void blake256_cpu_setBlock_80(uint32_t *pdata, const uint32_t *ptarget)
/* Precalculated 1st 64-bytes block (midstate) method */ /* Precalculated 1st 64-bytes block (midstate) method */
__global__ __global__
void blake256_gpu_hash_16(const uint32_t threads, const uint32_t startNonce, uint32_t *resNounce, void blake256_gpu_hash_16(const uint32_t threads, const uint32_t startNonce, uint32_t *resNonce,
const uint64_t highTarget, const int rounds, const bool trace) const uint64_t highTarget, const int rounds, const bool trace)
{ {
uint32_t thread = (blockDim.x * blockIdx.x + threadIdx.x); uint32_t thread = (blockDim.x * blockIdx.x + threadIdx.x);
if (thread < threads) if (thread < threads)
{ {
const uint32_t nounce = startNonce + thread; const uint32_t nonce = startNonce + thread;
uint32_t h[8]; uint32_t _ALIGN(16) h[8];
#pragma unroll #pragma unroll
for(int i=0; i < 8; i++) { for(int i=0; i < 8; i++) {
h[i] = c_data[i]; h[i] = d_data[i];
} }
// ------ Close: Bytes 64 to 80 ------ // ------ Close: Bytes 64 to 80 ------
uint32_t ending[4]; uint32_t _ALIGN(16) ending[4];
ending[0] = c_data[8]; ending[0] = d_data[8];
ending[1] = c_data[9]; ending[1] = d_data[9];
ending[2] = c_data[10]; ending[2] = d_data[10];
ending[3] = nounce; /* our tested value */ ending[3] = nonce; /* our tested value */
blake256_compress(h, ending, 640, rounds); blake256_compress(h, ending, 640, rounds);
//if (h[7] == 0 && high64 <= highTarget) { //if (h[7] == 0 && high64 <= highTarget) {
if (h[7] == 0) { if (h[7] == 0) {
#if NBN == 2 #if NBN == 2
/* keep the smallest nounce, + extra one if found */ /* keep the smallest nonce, + extra one if found */
if (resNounce[0] > nounce) { if (resNonce[0] > nonce) {
// printf("%llx %llx \n", high64, highTarget); // printf("%llx %llx \n", high64, highTarget);
resNounce[1] = resNounce[0]; resNonce[1] = resNonce[0];
resNounce[0] = nounce; resNonce[0] = nonce;
} }
else else
resNounce[1] = nounce; resNonce[1] = nonce;
#else #else
resNounce[0] = nounce; resNonce[0] = nonce;
#endif #endif
if (trace) { if (trace) {
#ifdef _DEBUG #ifdef _DEBUG
printf("tgt: %16llx\n", highTarget);
uint64_t high64 = ((uint64_t*)h)[3]; uint64_t high64 = ((uint64_t*)h)[3];
printf("gpu: %16llx\n", high64); printf("gpu: %16llx\n", high64);
printf("gpu: %16llx\n", cuda_swab64(h64)); printf("gpu: %08x.%08x\n", h[7], h[6]);
printf("gpu: %16x\n", cuda_swab32(h[6])); printf("tgt: %16llx\n", highTarget);
printf("gpu: %08x %08x\n", h[6], h[7]);
#endif #endif
} }
} }
@ -380,7 +376,7 @@ static void blake256mid(uint32_t *output, const uint32_t *input, int8_t rounds =
sph_blake256_init(&ctx); sph_blake256_init(&ctx);
sph_blake256(&ctx, input, 64); sph_blake256(&ctx, input, 64);
memcpy(output, (uchar*)ctx.H, 32); memcpy(output, (void*)ctx.H, 32);
} }
__host__ __host__
@ -391,8 +387,7 @@ void blake256_cpu_setBlock_16(uint32_t *penddata, const uint32_t *midstate, cons
data[8] = penddata[0]; data[8] = penddata[0];
data[9] = penddata[1]; data[9] = penddata[1];
data[10]= penddata[2]; data[10]= penddata[2];
CUDA_SAFE_CALL(cudaMemcpyToSymbol(c_data, data, 32 + 12, 0, cudaMemcpyHostToDevice)); CUDA_SAFE_CALL(cudaMemcpyToSymbol(d_data, data, 32 + 12, 0, cudaMemcpyHostToDevice));
CUDA_SAFE_CALL(cudaMemcpyToSymbol(c_sigma, host_sigma, sizeof(host_sigma), 0, cudaMemcpyHostToDevice));
} }
#endif #endif
@ -409,7 +404,7 @@ extern "C" int scanhash_blake256(int thr_id, uint32_t *pdata, const uint32_t *pt
uint32_t crcsum; uint32_t crcsum;
#endif #endif
/* todo: -i param */ /* todo: -i param */
uint32_t throughput = min(256 * 4096, max_nonce - first_nonce); uint32_t throughput = min(INTENSITY, max_nonce - first_nonce);
int rc = 0; int rc = 0;
@ -501,7 +496,7 @@ extern "C" int scanhash_blake256(int thr_id, uint32_t *pdata, const uint32_t *pt
else if (opt_debug) { else if (opt_debug) {
applog_hash((uint8_t*)ptarget); applog_hash((uint8_t*)ptarget);
applog_compare_hash((uint8_t*)vhashcpu,(uint8_t*)ptarget); applog_compare_hash((uint8_t*)vhashcpu,(uint8_t*)ptarget);
applog(LOG_DEBUG, "GPU #%d: result for nounce %08x does not validate on CPU!", thr_id, foundNonce); applog(LOG_DEBUG, "GPU #%d: result for nonce %08x does not validate on CPU!", thr_id, foundNonce);
} }
} }

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