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355 lines
12 KiB
355 lines
12 KiB
#include <stdio.h> |
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#include <openssl/sha.h> |
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#include <map> |
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// include thrust |
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#include <thrust/remove.h> |
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#include <thrust/device_vector.h> |
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#include "miner.h" |
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extern "C" { |
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#include "sph/sph_keccak.h" |
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#include "sph/sph_blake.h" |
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#include "sph/sph_groestl.h" |
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} |
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#include "hefty1.h" |
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#include "heavy/heavy.h" |
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#include "cuda_helper.h" |
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extern uint32_t *d_hash2output[8]; |
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extern uint32_t *d_hash3output[8]; |
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extern uint32_t *d_hash4output[8]; |
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extern uint32_t *d_hash5output[8]; |
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#define HEAVYCOIN_BLKHDR_SZ 84 |
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#define MNR_BLKHDR_SZ 80 |
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// nonce-array für die threads |
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uint32_t *heavy_nonceVector[8]; |
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extern uint32_t *heavy_heftyHashes[8]; |
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/* Combines top 64-bits from each hash into a single hash */ |
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static void combine_hashes(uint32_t *out, const uint32_t *hash1, const uint32_t *hash2, const uint32_t *hash3, const uint32_t *hash4) |
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{ |
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const uint32_t *hash[4] = { hash1, hash2, hash3, hash4 }; |
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int bits; |
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unsigned int i; |
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uint32_t mask; |
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unsigned int k; |
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/* Transpose first 64 bits of each hash into out */ |
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memset(out, 0, 32); |
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bits = 0; |
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for (i = 7; i >= 6; i--) { |
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for (mask = 0x80000000; mask; mask >>= 1) { |
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for (k = 0; k < 4; k++) { |
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out[(255 - bits)/32] <<= 1; |
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if ((hash[k][i] & mask) != 0) |
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out[(255 - bits)/32] |= 1; |
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bits++; |
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} |
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} |
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} |
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} |
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#ifdef _MSC_VER |
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#include <intrin.h> |
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static uint32_t __inline bitsset( uint32_t x ) |
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{ |
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DWORD r = 0; |
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_BitScanReverse(&r, x); |
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return r; |
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} |
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#else |
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static uint32_t bitsset( uint32_t x ) |
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{ |
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return 31-__builtin_clz(x); |
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} |
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#endif |
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// Finde das high bit in einem Multiword-Integer. |
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static int findhighbit(const uint32_t *ptarget, int words) |
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{ |
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int i; |
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int highbit = 0; |
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for (i=words-1; i >= 0; --i) |
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{ |
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if (ptarget[i] != 0) { |
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highbit = i*32 + bitsset(ptarget[i])+1; |
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break; |
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} |
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} |
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return highbit; |
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} |
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// Generiere ein Multiword-Integer das die Zahl |
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// (2 << highbit) - 1 repräsentiert. |
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static void genmask(uint32_t *ptarget, int words, int highbit) |
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{ |
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int i; |
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for (i=words-1; i >= 0; --i) |
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{ |
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if ((i+1)*32 <= highbit) |
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ptarget[i] = UINT32_MAX; |
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else if (i*32 > highbit) |
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ptarget[i] = 0x00000000; |
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else |
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ptarget[i] = (1 << (highbit-i*32)) - 1; |
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} |
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} |
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struct check_nonce_for_remove |
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{ |
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check_nonce_for_remove(uint64_t target, uint32_t *hashes, uint32_t hashlen, uint32_t startNonce) : |
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m_target(target), |
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m_hashes(hashes), |
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m_hashlen(hashlen), |
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m_startNonce(startNonce) { } |
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uint64_t m_target; |
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uint32_t *m_hashes; |
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uint32_t m_hashlen; |
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uint32_t m_startNonce; |
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__device__ |
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bool operator()(const uint32_t x) |
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{ |
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// Position im Hash Buffer |
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uint32_t hashIndex = x - m_startNonce; |
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// Wert des Hashes (als uint64_t) auslesen. |
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// Steht im 6. und 7. Wort des Hashes (jeder dieser Hashes hat 512 Bits) |
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uint64_t hashValue = *((uint64_t*)(&m_hashes[m_hashlen*hashIndex + 6])); |
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bool res = (hashValue & m_target) != hashValue; |
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//printf("ndx=%x val=%08x target=%lx\n", hashIndex, hashValue, m_target); |
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// gegen das Target prüfen. Es dürfen nur Bits aus dem Target gesetzt sein. |
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return res; |
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} |
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}; |
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static bool init[8] = {0,0,0,0,0,0,0,0}; |
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__host__ |
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int scanhash_heavy(int thr_id, uint32_t *pdata, |
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const uint32_t *ptarget, uint32_t max_nonce, |
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unsigned long *hashes_done, uint32_t maxvote, int blocklen) |
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{ |
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const uint32_t first_nonce = pdata[19]; |
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// CUDA will process thousands of threads. |
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int throughput = opt_work_size ? opt_work_size : (1 << 19) - 256; // 256*2048 |
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throughput = min(throughput, (int)(max_nonce - first_nonce)); |
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int rc = 0; |
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uint32_t *hash = NULL; |
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uint32_t *cpu_nonceVector = NULL; |
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CUDA_SAFE_CALL(cudaMallocHost(&hash, throughput*8*sizeof(uint32_t))); |
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CUDA_SAFE_CALL(cudaMallocHost(&cpu_nonceVector, throughput*sizeof(uint32_t))); |
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int nrmCalls[6]; |
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memset(nrmCalls, 0, sizeof(int) * 6); |
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if (opt_benchmark) |
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((uint32_t*)ptarget)[7] = 0x00ff; |
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// für jeden Hash ein individuelles Target erstellen basierend |
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// auf dem höchsten Bit, das in ptarget gesetzt ist. |
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int highbit = findhighbit(ptarget, 8); |
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uint32_t target2[2], target3[2], target4[2], target5[2]; |
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genmask(target2, 2, highbit/4+(((highbit%4)>3)?1:0) ); // SHA256 |
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genmask(target3, 2, highbit/4+(((highbit%4)>2)?1:0) ); // keccak512 |
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genmask(target4, 2, highbit/4+(((highbit%4)>1)?1:0) ); // groestl512 |
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genmask(target5, 2, highbit/4+(((highbit%4)>0)?1:0) ); // blake512 |
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if (!init[thr_id]) |
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{ |
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hefty_cpu_init(thr_id, throughput); |
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sha256_cpu_init(thr_id, throughput); |
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keccak512_cpu_init(thr_id, throughput); |
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groestl512_cpu_init(thr_id, throughput); |
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blake512_cpu_init(thr_id, throughput); |
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combine_cpu_init(thr_id, throughput); |
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CUDA_SAFE_CALL(cudaMalloc(&heavy_nonceVector[thr_id], sizeof(uint32_t) * throughput)); |
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init[thr_id] = true; |
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} |
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if (blocklen == HEAVYCOIN_BLKHDR_SZ) |
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{ |
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uint16_t *ext = (uint16_t *)&pdata[20]; |
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if (opt_vote > maxvote) { |
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applog(LOG_WARNING, "Your block reward vote (%hu) exceeds " |
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"the maxvote reported by the pool (%hu).", |
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opt_vote, maxvote); |
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} |
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if (opt_trust_pool && opt_vote > maxvote) { |
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applog(LOG_WARNING, "Capping block reward vote to maxvote reported by pool."); |
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ext[0] = maxvote; |
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} |
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else |
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ext[0] = opt_vote; |
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} |
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// Setze die Blockdaten |
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hefty_cpu_setBlock(thr_id, throughput, pdata, blocklen); |
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sha256_cpu_setBlock(pdata, blocklen); |
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keccak512_cpu_setBlock(pdata, blocklen); |
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groestl512_cpu_setBlock(pdata, blocklen); |
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blake512_cpu_setBlock(pdata, blocklen); |
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do { |
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////// Compaction init |
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thrust::device_ptr<uint32_t> devNoncePtr(heavy_nonceVector[thr_id]); |
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thrust::device_ptr<uint32_t> devNoncePtrEnd((heavy_nonceVector[thr_id]) + throughput); |
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uint32_t actualNumberOfValuesInNonceVectorGPU = throughput; |
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uint64_t *t; |
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hefty_cpu_hash(thr_id, throughput, pdata[19]); |
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//cudaThreadSynchronize(); |
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sha256_cpu_hash(thr_id, throughput, pdata[19]); |
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//cudaThreadSynchronize(); |
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// Hier ist die längste CPU Wartephase. Deshalb ein strategisches MyStreamSynchronize() hier. |
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MyStreamSynchronize(NULL, 1, thr_id); |
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////// Compaction |
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t = (uint64_t*) target2; |
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devNoncePtrEnd = thrust::remove_if(devNoncePtr, devNoncePtrEnd, check_nonce_for_remove(*t, d_hash2output[thr_id], 8, pdata[19])); |
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actualNumberOfValuesInNonceVectorGPU = (uint32_t)(devNoncePtrEnd - devNoncePtr); |
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if(actualNumberOfValuesInNonceVectorGPU == 0) |
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goto emptyNonceVector; |
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keccak512_cpu_hash(thr_id, actualNumberOfValuesInNonceVectorGPU, pdata[19]); |
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//cudaThreadSynchronize(); |
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////// Compaction |
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t = (uint64_t*) target3; |
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devNoncePtrEnd = thrust::remove_if(devNoncePtr, devNoncePtrEnd, check_nonce_for_remove(*t, d_hash3output[thr_id], 16, pdata[19])); |
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actualNumberOfValuesInNonceVectorGPU = (uint32_t)(devNoncePtrEnd - devNoncePtr); |
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if(actualNumberOfValuesInNonceVectorGPU == 0) |
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goto emptyNonceVector; |
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blake512_cpu_hash(thr_id, actualNumberOfValuesInNonceVectorGPU, pdata[19]); |
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//cudaThreadSynchronize(); |
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////// Compaction |
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t = (uint64_t*) target5; |
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devNoncePtrEnd = thrust::remove_if(devNoncePtr, devNoncePtrEnd, check_nonce_for_remove(*t, d_hash5output[thr_id], 16, pdata[19])); |
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actualNumberOfValuesInNonceVectorGPU = (uint32_t)(devNoncePtrEnd - devNoncePtr); |
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if(actualNumberOfValuesInNonceVectorGPU == 0) |
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goto emptyNonceVector; |
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groestl512_cpu_hash(thr_id, actualNumberOfValuesInNonceVectorGPU, pdata[19]); |
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//cudaThreadSynchronize(); |
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////// Compaction |
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t = (uint64_t*) target4; |
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devNoncePtrEnd = thrust::remove_if(devNoncePtr, devNoncePtrEnd, check_nonce_for_remove(*t, d_hash4output[thr_id], 16, pdata[19])); |
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actualNumberOfValuesInNonceVectorGPU = (uint32_t)(devNoncePtrEnd - devNoncePtr); |
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if(actualNumberOfValuesInNonceVectorGPU == 0) |
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goto emptyNonceVector; |
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// combine |
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combine_cpu_hash(thr_id, actualNumberOfValuesInNonceVectorGPU, pdata[19], hash); |
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if (opt_tracegpu) { |
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applog(LOG_BLUE, "heavy GPU hash:"); |
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applog_hash((uchar*)hash); |
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} |
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// Ergebnisse kopieren |
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if(actualNumberOfValuesInNonceVectorGPU > 0) |
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{ |
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size_t size = sizeof(uint32_t) * actualNumberOfValuesInNonceVectorGPU; |
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CUDA_SAFE_CALL(cudaMemcpy(cpu_nonceVector, heavy_nonceVector[thr_id], size, cudaMemcpyDeviceToHost)); |
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cudaThreadSynchronize(); |
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for (uint32_t i=0; i < actualNumberOfValuesInNonceVectorGPU; i++) |
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{ |
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uint32_t nonce = cpu_nonceVector[i]; |
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uint32_t *foundhash = &hash[8*i]; |
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if (foundhash[7] <= ptarget[7]) { |
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if (fulltest(foundhash, ptarget)) { |
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uint32_t verification[8]; |
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pdata[19] += nonce - pdata[19]; |
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heavycoin_hash((uchar*)verification, (uchar*)pdata, blocklen); |
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if (memcmp(verification, foundhash, 8*sizeof(uint32_t))) { |
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applog(LOG_ERR, "hash for nonce=$%08X does not validate on CPU!\n", nonce); |
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} else { |
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*hashes_done = pdata[19] - first_nonce; |
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rc = 1; |
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goto exit; |
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} |
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} |
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} |
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} |
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} |
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emptyNonceVector: |
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pdata[19] += throughput; |
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} while (pdata[19] < max_nonce && !work_restart[thr_id].restart); |
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*hashes_done = pdata[19] - first_nonce; |
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exit: |
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cudaFreeHost(cpu_nonceVector); |
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cudaFreeHost(hash); |
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return rc; |
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} |
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__host__ |
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void heavycoin_hash(uchar* output, const uchar* input, int len) |
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{ |
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unsigned char hash1[32]; |
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unsigned char hash2[32]; |
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uint32_t hash3[16]; |
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uint32_t hash4[16]; |
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uint32_t hash5[16]; |
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uint32_t *final; |
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SHA256_CTX ctx; |
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sph_keccak512_context keccakCtx; |
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sph_groestl512_context groestlCtx; |
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sph_blake512_context blakeCtx; |
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HEFTY1(input, len, hash1); |
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/* HEFTY1 is new, so take an extra security measure to eliminate |
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* the possiblity of collisions: |
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* |
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* Hash(x) = SHA256(x + HEFTY1(x)) |
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* |
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* N.B. '+' is concatenation. |
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*/ |
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SHA256_Init(&ctx); |
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SHA256_Update(&ctx, input, len); |
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SHA256_Update(&ctx, hash1, sizeof(hash1)); |
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SHA256_Final(hash2, &ctx); |
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/* Additional security: Do not rely on a single cryptographic hash |
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* function. Instead, combine the outputs of 4 of the most secure |
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* cryptographic hash functions-- SHA256, KECCAK512, GROESTL512 |
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* and BLAKE512. |
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*/ |
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sph_keccak512_init(&keccakCtx); |
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sph_keccak512(&keccakCtx, input, len); |
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sph_keccak512(&keccakCtx, hash1, sizeof(hash1)); |
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sph_keccak512_close(&keccakCtx, (void *)&hash3); |
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sph_groestl512_init(&groestlCtx); |
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sph_groestl512(&groestlCtx, input, len); |
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sph_groestl512(&groestlCtx, hash1, sizeof(hash1)); |
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sph_groestl512_close(&groestlCtx, (void *)&hash4); |
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sph_blake512_init(&blakeCtx); |
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sph_blake512(&blakeCtx, input, len); |
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sph_blake512(&blakeCtx, (unsigned char *)&hash1, sizeof(hash1)); |
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sph_blake512_close(&blakeCtx, (void *)&hash5); |
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final = (uint32_t *)output; |
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combine_hashes(final, (uint32_t *)hash2, hash3, hash4, hash5); |
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}
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