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VeltorCoin Streebog based algo (veltor)
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 Streebog
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,175 @@ | ||
| extern "C" { | ||
| #include "sph/sph_skein.h" | ||
| #include "sph/sph_shavite.h" | ||
| #include "sph/sph_shabal.h" | ||
| #include "sph/sph_streebog.h" | ||
| } | ||
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| #include "miner.h" | ||
| #include "cuda_helper.h" | ||
| #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); | ||
| 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); | ||
| extern void skein512_cpu_setBlock_80(void *pdata); | ||
| 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> | ||
| #include <memory.h> | ||
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| static uint32_t *d_hash[MAX_GPUS]; | ||
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| // Veltor CPU Hash | ||
| extern "C" void veltorhash(void *output, const void *input) | ||
| { | ||
| uint8_t _ALIGN(64) hash[128] = { 0 }; | ||
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| sph_skein512_context ctx_skein; | ||
| sph_shavite512_context ctx_shavite; | ||
| sph_shabal512_context ctx_shabal; | ||
| sph_gost512_context ctx_gost; | ||
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| sph_skein512_init(&ctx_skein); | ||
| sph_skein512(&ctx_skein, input, 80); | ||
| sph_skein512_close(&ctx_skein, (void*) hash); | ||
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| sph_shavite512_init(&ctx_shavite); | ||
| sph_shavite512(&ctx_shavite, (const void*) hash, 64); | ||
| sph_shavite512_close(&ctx_shavite, (void*) hash); | ||
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| sph_shabal512_init(&ctx_shabal); | ||
| sph_shabal512(&ctx_shabal, (const void*) hash, 64); | ||
| sph_shabal512_close(&ctx_shabal, (void*) hash); | ||
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| sph_gost512_init(&ctx_gost); | ||
| sph_gost512(&ctx_gost, (const void*) hash, 64); | ||
| sph_gost512_close(&ctx_gost, (void*) hash); | ||
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| memcpy(output, hash, 32); | ||
| } | ||
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| //#define _DEBUG | ||
| #define _DEBUG_PREFIX "veltor" | ||
| #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) | ||
| { | ||
| uint32_t *pdata = work->data; | ||
| uint32_t *ptarget = work->target; | ||
| const uint32_t first_nonce = pdata[19]; | ||
| int intensity = (device_sm[device_map[thr_id]] >= 500 && !is_windows()) ? 20 : 18; | ||
| uint32_t throughput = cuda_default_throughput(thr_id, 1U << intensity); // 19=256*256*8; | ||
| //if (init[thr_id]) throughput = min(throughput, max_nonce - first_nonce); | ||
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| if (opt_benchmark) | ||
| ptarget[7] = 0xf; | ||
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| if (!init[thr_id]) | ||
| { | ||
| cudaSetDevice(device_map[thr_id]); | ||
| if (opt_cudaschedule == -1 && gpu_threads == 1) { | ||
| cudaDeviceReset(); | ||
| // reduce cpu usage | ||
| cudaSetDeviceFlags(cudaDeviceScheduleBlockingSync); | ||
| CUDA_LOG_ERROR(); | ||
| } | ||
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| quark_skein512_cpu_init(thr_id, throughput); | ||
| x11_shavite512_cpu_init(thr_id, throughput); | ||
| 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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| uint32_t endiandata[20]; | ||
| for (int k=0; k < 20; k++) | ||
| be32enc(&endiandata[k], pdata[k]); | ||
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| skein512_cpu_setBlock_80(endiandata); | ||
| cuda_check_cpu_setTarget(ptarget); | ||
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| do { | ||
| int order = 0; | ||
| uint32_t foundNonce; | ||
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| // Hash with CUDA | ||
| skein512_cpu_hash_80(thr_id, throughput, pdata[19], d_hash[thr_id], 1); order++; | ||
| TRACE("blake :"); | ||
| x11_shavite512_cpu_hash_64(thr_id, throughput, pdata[19], NULL, d_hash[thr_id], order++); | ||
| TRACE("shavite:"); | ||
| x14_shabal512_cpu_hash_64(thr_id, throughput, pdata[19], NULL, d_hash[thr_id], order++); | ||
| TRACE("shabal :"); | ||
| streebog_cpu_hash_64(thr_id, throughput, pdata[19], d_hash[thr_id]); | ||
| 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]); | ||
| if (foundNonce != UINT32_MAX) | ||
| { | ||
| const uint32_t Htarg = ptarget[7]; | ||
| uint32_t _ALIGN(64) vhash[8]; | ||
| be32enc(&endiandata[19], foundNonce); | ||
| veltorhash(vhash, endiandata); | ||
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| if (vhash[7] <= Htarg && fulltest(vhash, ptarget)) { | ||
| int res = 1; | ||
| // check if there was another one... | ||
| uint32_t secNonce = cuda_check_hash_suppl(thr_id, throughput, pdata[19], d_hash[thr_id], 1); | ||
| work_set_target_ratio(work, vhash); | ||
| if (secNonce != 0) { | ||
| be32enc(&endiandata[19], secNonce); | ||
| veltorhash(vhash, endiandata); | ||
| work->nonces[1] = secNonce; | ||
| if (bn_hash_target_ratio(vhash, ptarget) > work->shareratio) { | ||
| work_set_target_ratio(work, vhash); | ||
| xchg(work->nonces[1], work->nonces[0]); | ||
| } | ||
| res++; | ||
| } | ||
| pdata[19] = work->nonces[0] = foundNonce; | ||
| return res; | ||
| } else { | ||
| gpulog(LOG_WARNING, thr_id, "result for %08x does not validate on CPU!", foundNonce); | ||
| pdata[19] = foundNonce + 1; | ||
| continue; | ||
| } | ||
| } | ||
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| if ((uint64_t) throughput + pdata[19] >= max_nonce) { | ||
| pdata[19] = max_nonce; | ||
| break; | ||
| } | ||
| pdata[19] += throughput; | ||
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| } while (!work_restart[thr_id].restart); | ||
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| *hashes_done = pdata[19] - first_nonce; | ||
| return 0; | ||
| } | ||
|
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| // cleanup | ||
| extern "C" void free_veltor(int thr_id) | ||
| { | ||
| if (!init[thr_id]) | ||
| 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); | ||
| init[thr_id] = false; | ||
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| cudaDeviceSynchronize(); | ||
| } |