Browse Source
also known as "Thor's Riddle"... yes sure ;) Credits to ocminer who found and "implemented" it. Note: tested "ok" on x64 and CUDA 6.5 x86, not on 7.5 and 8.0 x86 PS: Don't have the time for a more proper CUDA implementation of Streebogmaster
Tanguy Pruvot
8 years ago
12 changed files with 209 additions and 9 deletions
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extern "C" { |
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#include "sph/sph_skein.h" |
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#include "sph/sph_shavite.h" |
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#include "sph/sph_shabal.h" |
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#include "sph/sph_streebog.h" |
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} |
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#include "miner.h" |
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#include "cuda_helper.h" |
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#include "cuda_x11.h" |
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extern void streebog_cpu_hash_64(int thr_id, uint32_t threads, uint32_t startNounce, uint32_t *d_hash); |
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extern void x14_shabal512_cpu_init(int thr_id, uint32_t threads); |
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extern void x14_shabal512_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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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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#include <stdio.h> |
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#include <memory.h> |
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static uint32_t *d_hash[MAX_GPUS]; |
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// Veltor CPU Hash |
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extern "C" void veltorhash(void *output, const void *input) |
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{ |
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uint8_t _ALIGN(64) hash[128] = { 0 }; |
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sph_skein512_context ctx_skein; |
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sph_shavite512_context ctx_shavite; |
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sph_shabal512_context ctx_shabal; |
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sph_gost512_context ctx_gost; |
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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, (void*) hash); |
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sph_shavite512_init(&ctx_shavite); |
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sph_shavite512(&ctx_shavite, (const void*) hash, 64); |
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sph_shavite512_close(&ctx_shavite, (void*) hash); |
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sph_shabal512_init(&ctx_shabal); |
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sph_shabal512(&ctx_shabal, (const void*) hash, 64); |
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sph_shabal512_close(&ctx_shabal, (void*) hash); |
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sph_gost512_init(&ctx_gost); |
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sph_gost512(&ctx_gost, (const void*) hash, 64); |
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sph_gost512_close(&ctx_gost, (void*) hash); |
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memcpy(output, hash, 32); |
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} |
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//#define _DEBUG |
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#define _DEBUG_PREFIX "veltor" |
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#include "cuda_debug.cuh" |
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static bool init[MAX_GPUS] = { 0 }; |
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extern "C" int scanhash_veltor(int thr_id, struct work* work, uint32_t max_nonce, unsigned long *hashes_done) |
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{ |
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uint32_t *pdata = work->data; |
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uint32_t *ptarget = work->target; |
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const uint32_t first_nonce = pdata[19]; |
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int intensity = (device_sm[device_map[thr_id]] >= 500 && !is_windows()) ? 20 : 18; |
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uint32_t throughput = cuda_default_throughput(thr_id, 1U << intensity); // 19=256*256*8; |
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//if (init[thr_id]) throughput = min(throughput, max_nonce - first_nonce); |
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if (opt_benchmark) |
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ptarget[7] = 0xf; |
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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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if (opt_cudaschedule == -1 && gpu_threads == 1) { |
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cudaDeviceReset(); |
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// reduce cpu usage |
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cudaSetDeviceFlags(cudaDeviceScheduleBlockingSync); |
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CUDA_LOG_ERROR(); |
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} |
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quark_skein512_cpu_init(thr_id, throughput); |
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x11_shavite512_cpu_init(thr_id, throughput); |
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x14_shabal512_cpu_init(thr_id, throughput); |
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CUDA_CALL_OR_RET_X(cudaMalloc(&d_hash[thr_id], (size_t) 64 * throughput), 0); |
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cuda_check_cpu_init(thr_id, throughput); |
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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 < 20; k++) |
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be32enc(&endiandata[k], pdata[k]); |
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skein512_cpu_setBlock_80(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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uint32_t foundNonce; |
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// Hash with CUDA |
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skein512_cpu_hash_80(thr_id, throughput, pdata[19], d_hash[thr_id], 1); order++; |
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TRACE("blake :"); |
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x11_shavite512_cpu_hash_64(thr_id, throughput, pdata[19], NULL, d_hash[thr_id], order++); |
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TRACE("shavite:"); |
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x14_shabal512_cpu_hash_64(thr_id, throughput, pdata[19], NULL, d_hash[thr_id], order++); |
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TRACE("shabal :"); |
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streebog_cpu_hash_64(thr_id, throughput, pdata[19], d_hash[thr_id]); |
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TRACE("gost :"); |
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*hashes_done = pdata[19] - first_nonce + throughput; |
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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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const uint32_t Htarg = ptarget[7]; |
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uint32_t _ALIGN(64) vhash[8]; |
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be32enc(&endiandata[19], foundNonce); |
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veltorhash(vhash, endiandata); |
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if (vhash[7] <= Htarg && fulltest(vhash, ptarget)) { |
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int res = 1; |
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// check if there was another one... |
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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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work_set_target_ratio(work, vhash); |
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if (secNonce != 0) { |
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be32enc(&endiandata[19], secNonce); |
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veltorhash(vhash, endiandata); |
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work->nonces[1] = secNonce; |
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if (bn_hash_target_ratio(vhash, ptarget) > work->shareratio) { |
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work_set_target_ratio(work, vhash); |
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xchg(work->nonces[1], work->nonces[0]); |
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} |
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res++; |
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} |
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pdata[19] = work->nonces[0] = foundNonce; |
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return res; |
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} else { |
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gpulog(LOG_WARNING, thr_id, "result for %08x does not validate on CPU!", foundNonce); |
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pdata[19] = foundNonce + 1; |
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continue; |
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} |
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} |
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if ((uint64_t) throughput + pdata[19] >= max_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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*hashes_done = pdata[19] - first_nonce; |
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return 0; |
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} |
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// cleanup |
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extern "C" void free_veltor(int thr_id) |
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{ |
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if (!init[thr_id]) |
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return; |
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cudaThreadSynchronize(); |
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cudaFree(d_hash[thr_id]); |
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cuda_check_cpu_free(thr_id); |
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init[thr_id] = false; |
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cudaDeviceSynchronize(); |
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} |
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