#include <string.h> #include <stdint.h> #include <cuda_runtime.h> #include <openssl/sha.h> #include "sph/sph_groestl.h" #include "miner.h" void myriadgroestl_cpu_init(int thr_id, uint32_t threads); void myriadgroestl_cpu_free(int thr_id); void myriadgroestl_cpu_setBlock(int thr_id, void *data, void *pTargetIn); void myriadgroestl_cpu_hash(int thr_id, uint32_t threads, uint32_t startNounce, void *outputHashes, uint32_t *nounce); void myriadhash(void *state, const void *input) { uint32_t _ALIGN(64) hash[16]; sph_groestl512_context ctx_groestl; SHA256_CTX sha256; sph_groestl512_init(&ctx_groestl); sph_groestl512(&ctx_groestl, input, 80); sph_groestl512_close(&ctx_groestl, hash); SHA256_Init(&sha256); SHA256_Update(&sha256,(unsigned char *)hash, 64); SHA256_Final((unsigned char *)hash, &sha256); memcpy(state, hash, 32); } static bool init[MAX_GPUS] = { 0 }; int scanhash_myriad(int thr_id, struct work *work, uint32_t max_nonce, unsigned long *hashes_done) { uint32_t _ALIGN(64) endiandata[32]; uint32_t *pdata = work->data; uint32_t *ptarget = work->target; uint32_t start_nonce = pdata[19]; uint32_t throughput = cuda_default_throughput(thr_id, 1U << 17); if (init[thr_id]) throughput = min(throughput, max_nonce - start_nonce); uint32_t *outputHash = (uint32_t*)malloc(throughput * 64); if (opt_benchmark) ptarget[7] = 0x0000ff; // init 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(); } myriadgroestl_cpu_init(thr_id, throughput); init[thr_id] = true; } for (int k=0; k < 20; k++) be32enc(&endiandata[k], pdata[k]); // Context mit dem Endian gedrehten Blockheader vorbereiten (Nonce wird sp�ter ersetzt) myriadgroestl_cpu_setBlock(thr_id, endiandata, (void*)ptarget); do { // GPU uint32_t foundNounce = UINT32_MAX; myriadgroestl_cpu_hash(thr_id, throughput, pdata[19], outputHash, &foundNounce); *hashes_done = pdata[19] - start_nonce + throughput; if (foundNounce < UINT32_MAX && bench_algo < 0) { uint32_t _ALIGN(64) vhash[8]; endiandata[19] = swab32(foundNounce); myriadhash(vhash, endiandata); if (vhash[7] <= ptarget[7] && fulltest(vhash, ptarget)) { work_set_target_ratio(work, vhash); pdata[19] = foundNounce; free(outputHash); return 1; } else { gpulog(LOG_WARNING, thr_id, "result for %08x does not validate on CPU!", foundNounce); } } if ((uint64_t) throughput + pdata[19] >= max_nonce) { pdata[19] = max_nonce; break; } pdata[19] += throughput; } while (!work_restart[thr_id].restart); *hashes_done = max_nonce - start_nonce; free(outputHash); return 0; } // cleanup void free_myriad(int thr_id) { if (!init[thr_id]) return; cudaThreadSynchronize(); myriadgroestl_cpu_free(thr_id); init[thr_id] = false; cudaDeviceSynchronize(); }