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92 lines
2.2 KiB
92 lines
2.2 KiB
#include <string.h> |
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#include <stdint.h> |
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#include <cuda_runtime.h> |
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#include <openssl/sha.h> |
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#include "uint256.h" |
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#include "sph/sph_groestl.h" |
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#include "cuda_groestlcoin.h" |
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#include "miner.h" |
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// CPU hash |
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void groestlhash(void *state, const void *input) |
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{ |
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uint32_t _ALIGN(64) hash[16]; |
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sph_groestl512_context ctx_groestl; |
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sph_groestl512_init(&ctx_groestl); |
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sph_groestl512(&ctx_groestl, input, 80); |
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sph_groestl512_close(&ctx_groestl, hash); |
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sph_groestl512_init(&ctx_groestl); |
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sph_groestl512(&ctx_groestl, hash, 64); |
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sph_groestl512_close(&ctx_groestl, hash); |
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memcpy(state, hash, 32); |
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} |
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static bool init[MAX_GPUS] = { 0 }; |
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int scanhash_groestlcoin(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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uint32_t _ALIGN(64) endiandata[20]; |
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uint32_t start_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 - start_nonce); |
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uint32_t *outputHash = (uint32_t*)malloc(throughput * 64); |
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if (opt_benchmark) |
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((uint32_t*)ptarget)[7] = 0x000000ff; |
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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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groestlcoin_cpu_init(thr_id, throughput); |
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init[thr_id] = true; |
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} |
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for (int k=0; k < 20; k++) |
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be32enc(&endiandata[k], pdata[k]); |
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groestlcoin_cpu_setBlock(thr_id, endiandata, (void*)ptarget); |
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do { |
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uint32_t foundNounce = UINT32_MAX; |
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*hashes_done = pdata[19] - start_nonce + throughput; |
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// GPU hash |
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groestlcoin_cpu_hash(thr_id, throughput, pdata[19], outputHash, &foundNounce); |
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if (foundNounce < UINT32_MAX) |
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{ |
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uint32_t _ALIGN(64) tmpHash[8]; |
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endiandata[19] = swab32(foundNounce); |
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groestlhash(tmpHash, endiandata); |
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if (tmpHash[7] <= ptarget[7] && fulltest(tmpHash, ptarget)) { |
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pdata[19] = foundNounce; |
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free(outputHash); |
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return true; |
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} else { |
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applog(LOG_WARNING, "GPU #%d: result for nonce %08x does not validate on CPU!", |
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device_map[thr_id], foundNounce); |
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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] - start_nonce + 1; |
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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 (pdata[19] < max_nonce && !work_restart[thr_id].restart); |
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free(outputHash); |
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return 0; |
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} |
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