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97 lines
2.4 KiB
97 lines
2.4 KiB
/* |
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* qubit algorithm |
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* |
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*/ |
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extern "C" { |
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#include "sph/sph_luffa.h" |
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} |
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#include "miner.h" |
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#include "cuda_helper.h" |
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static uint32_t *d_hash[8]; |
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extern void qubit_luffa512_cpu_init(int thr_id, int threads); |
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extern void qubit_luffa512_cpu_setBlock_80(void *pdata); |
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extern void qubit_luffa512_cpu_hash_80(int thr_id, int threads, uint32_t startNounce, uint32_t *d_hash, int order); |
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extern void qubit_luffa512_cpufinal_setBlock_80(void *pdata, const void *ptarget); |
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extern uint32_t qubit_luffa512_cpu_finalhash_80(int thr_id, int threads, uint32_t startNounce, uint32_t *d_hash, int order); |
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extern void doomhash(void *state, const void *input) |
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{ |
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// luffa512 |
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sph_luffa512_context ctx_luffa; |
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uint8_t hash[64]; |
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sph_luffa512_init(&ctx_luffa); |
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sph_luffa512 (&ctx_luffa, input, 80); |
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sph_luffa512_close(&ctx_luffa, (void*) hash); |
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memcpy(state, hash, 32); |
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} |
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extern "C" int scanhash_doom(int thr_id, uint32_t *pdata, |
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const uint32_t *ptarget, uint32_t max_nonce, |
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unsigned long *hashes_done) |
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{ |
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const uint32_t first_nonce = pdata[19]; |
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static bool init[8] = {0,0,0,0,0,0,0,0}; |
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uint32_t endiandata[20]; |
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int throughput = opt_work_size ? opt_work_size : (1 << 22); // 256*256*8*8 |
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throughput = min(throughput, (int)(max_nonce - first_nonce)); |
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if (opt_benchmark) |
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((uint32_t*)ptarget)[7] = 0x0000f; |
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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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CUDA_SAFE_CALL(cudaMalloc(&d_hash[thr_id], 16 * sizeof(uint32_t) * throughput)); |
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qubit_luffa512_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], ((uint32_t*)pdata)[k]); |
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qubit_luffa512_cpufinal_setBlock_80((void*)endiandata,ptarget); |
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do { |
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const uint32_t Htarg = ptarget[7]; |
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int order = 0; |
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uint32_t foundNonce = qubit_luffa512_cpu_finalhash_80(thr_id, throughput, pdata[19], d_hash[thr_id], order++); |
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if (foundNonce != 0xffffffff) |
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{ |
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uint32_t vhash64[8]; |
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be32enc(&endiandata[19], foundNonce); |
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doomhash(vhash64, endiandata); |
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if (vhash64[7] <= Htarg && fulltest(vhash64, ptarget) ) |
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{ |
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pdata[19] = foundNonce; |
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*hashes_done = foundNonce - first_nonce + 1; |
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return 1; |
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} else { |
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applog(LOG_INFO, "GPU #%d: result for nonce $%08X does not validate on CPU!", thr_id, foundNonce); |
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} |
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} |
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pdata[19] += throughput; |
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if ((uint64_t) pdata[19] + throughput > max_nonce) { |
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pdata[19] = max_nonce; |
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break; |
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} |
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} while (!work_restart[thr_id].restart); |
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*hashes_done = pdata[19] - first_nonce + 1; |
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return 0; |
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}
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