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94 lines
2.3 KiB
94 lines
2.3 KiB
10 years ago
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/*
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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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extern int device_map[8];
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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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const int throughput = 256*256*8*8;
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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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if (opt_benchmark)
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((uint32_t*)ptarget)[7] = 0x0000ff;
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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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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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} while (pdata[19] < max_nonce && !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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