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115 lines
3.0 KiB
115 lines
3.0 KiB
/** |
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* SKEIN512 80 + SKEIN512 64 (Woodcoin) |
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* by tpruvot@github - 2015 |
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*/ |
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#include <string.h> |
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#include "sph/sph_skein.h" |
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#include "miner.h" |
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#include "cuda_helper.h" |
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static uint32_t *d_hash[MAX_GPUS]; |
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extern void quark_skein512_cpu_init(int thr_id, uint32_t threads); |
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extern void skein512_cpu_setBlock_80(void *pdata); |
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extern void skein512_cpu_hash_80(int thr_id, uint32_t threads, uint32_t startNounce, uint32_t *d_hash, int swap); |
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extern void quark_skein512_cpu_hash_64(int thr_id, uint32_t threads, uint32_t startNounce, uint32_t *d_nonceVector, uint32_t *d_hash, int order); |
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void skein2hash(void *output, const void *input) |
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{ |
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uint32_t _ALIGN(64) hash[16]; |
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sph_skein512_context ctx_skein; |
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sph_skein512_init(&ctx_skein); |
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sph_skein512(&ctx_skein, input, 80); |
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sph_skein512_close(&ctx_skein, hash); |
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sph_skein512_init(&ctx_skein); |
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sph_skein512(&ctx_skein, hash, 64); |
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sph_skein512_close(&ctx_skein, hash); |
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memcpy(output, (void*) hash, 32); |
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} |
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static bool init[MAX_GPUS] = { 0 }; |
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int scanhash_skein2(int thr_id, uint32_t *pdata, const uint32_t *ptarget, |
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uint32_t max_nonce, unsigned long *hashes_done) |
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{ |
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const uint32_t first_nonce = pdata[19]; |
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uint32_t throughput = device_intensity(thr_id, __func__, 1 << 19); // 256*256*8 |
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throughput = min(throughput, (max_nonce - first_nonce)); |
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if (opt_benchmark) |
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((uint32_t*)ptarget)[7] = 0; |
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if (!init[thr_id]) |
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{ |
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cudaSetDevice(device_map[thr_id]); |
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cudaMalloc(&d_hash[thr_id], throughput * 64U); |
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quark_skein512_cpu_init(thr_id, throughput); |
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cuda_check_cpu_init(thr_id, throughput); |
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CUDA_SAFE_CALL(cudaDeviceSynchronize()); |
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init[thr_id] = true; |
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} |
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uint32_t endiandata[20]; |
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for (int k=0; k < 19; k++) |
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be32enc(&endiandata[k], pdata[k]); |
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skein512_cpu_setBlock_80((void*)endiandata); |
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cuda_check_cpu_setTarget(ptarget); |
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do { |
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int order = 0; |
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// Hash with CUDA |
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skein512_cpu_hash_80(thr_id, throughput, pdata[19], d_hash[thr_id], 0); |
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quark_skein512_cpu_hash_64(thr_id, throughput, pdata[19], NULL, d_hash[thr_id], order++); |
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*hashes_done = pdata[19] - first_nonce + throughput; |
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uint32_t foundNonce = cuda_check_hash(thr_id, throughput, pdata[19], d_hash[thr_id]); |
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if (foundNonce != UINT32_MAX) |
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{ |
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uint32_t _ALIGN(64) vhash64[8]; |
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endiandata[19] = foundNonce; |
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skein2hash(vhash64, endiandata); |
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if (vhash64[7] <= ptarget[7] && fulltest(vhash64, ptarget)) { |
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int res = 1; |
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uint32_t secNonce = cuda_check_hash_suppl(thr_id, throughput, pdata[19], d_hash[thr_id], 1); |
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if (secNonce != 0) { |
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if (!opt_quiet) |
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applog(LOG_BLUE, "GPU #%d: found second nonce %08x !", device_map[thr_id], swab32(secNonce)); |
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pdata[21] = swab32(secNonce); |
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res++; |
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} |
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pdata[19] = swab32(foundNonce); |
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return res; |
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} else { |
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applog(LOG_WARNING, "GPU #%d: result for nonce %08x does not validate on CPU!", device_map[thr_id], foundNonce); |
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} |
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} |
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if ((uint64_t) pdata[19] + throughput > max_nonce) { |
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*hashes_done = pdata[19] - first_nonce; |
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pdata[19] = max_nonce; |
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break; |
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} |
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pdata[19] += throughput; |
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} while (!work_restart[thr_id].restart); |
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return 0; |
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}
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