extern "C" int scanhash_fugue256(int thr_id, uint32_t *pdata, const uint32_t *ptarget,
uint32_t max_nonce, unsigned long *hashes_done)
{
uint32_t start_nonce = pdata[19]++;
unsigned int intensity = (device_sm[device_map[thr_id]] > 500) ? 22 : 19;
uint32_t throughput = device_intensity(device_map[thr_id], __func__, 1 << intensity); // 256*256*8
throughput = min(throughput, max_nonce - start_nonce);
if (opt_benchmark)
((uint32_t*)ptarget)[7] = 0xf;
// init
if(!init[thr_id])
{
fugue256_cpu_init(thr_id, throughput);
init[thr_id] = true;
}
// Endian Drehung ist notwendig
uint32_t endiandata[20];
for (int kk=0; kk < 20; kk++)
be32enc(&endiandata[kk], pdata[kk]);
// Context mit dem Endian gedrehten Blockheader vorbereiten (Nonce wird später ersetzt)
fugue256_cpu_setBlock(thr_id, endiandata, (void*)ptarget);
do {
// GPU
uint32_t foundNounce = 0xFFFFFFFF;
fugue256_cpu_hash(thr_id, throughput, pdata[19], NULL, &foundNounce);
if(foundNounce < 0xffffffff)
{
uint32_t hash[8];
const uint32_t Htarg = ptarget[7];
endiandata[19] = SWAP32(foundNounce);
sph_fugue256_context ctx_fugue;
sph_fugue256_init(&ctx_fugue);
sph_fugue256 (&ctx_fugue, endiandata, 80);
sph_fugue256_close(&ctx_fugue, &hash);
if (hash[7] <= Htarg && fulltest(hash, ptarget))
{
pdata[19] = foundNounce;
*hashes_done = foundNounce - start_nonce + 1;
return 1;
} else {
applog(LOG_INFO, "GPU #%d: result for nonce $%08X does not validate on CPU!", thr_id, foundNounce);
}
}
pdata[19] += throughput;
} while (!work_restart[thr_id].restart && ((uint64_t)max_nonce > ((uint64_t)(pdata[19]) + (uint64_t)throughput)));
*hashes_done = pdata[19] - start_nonce + 1;
return 0;
}
int scanhash_fugue256(int thr_id, struct work* work, uint32_t max_nonce, unsigned long *hashes_done)
{
uint32_t _ALIGN(64) endiandata[20];
uint32_t *pdata = work->data;
uint32_t *ptarget = work->target;
uint32_t start_nonce = pdata[19]++;
int intensity = (device_sm[device_map[thr_id]] > 500) ? 22 : 19;
uint32_t throughput = cuda_default_throughput(thr_id, 1U << intensity);
if (init[thr_id]) throughput = min(throughput, max_nonce - start_nonce);
if (opt_benchmark)
ptarget[7] = 0xf;
// init
if(!init[thr_id])
{
cudaSetDevice(device_map[thr_id]);
fugue256_cpu_init(thr_id, throughput);
init[thr_id] = true;
}
// Endian
for (int kk=0; kk < 20; kk++)
be32enc(&endiandata[kk], pdata[kk]);
fugue256_cpu_setBlock(thr_id, endiandata, (void*)ptarget);
do {
// GPU
uint32_t foundNounce = UINT32_MAX;
fugue256_cpu_hash(thr_id, throughput, pdata[19], NULL, &foundNounce);
*hashes_done = pdata[19] - start_nonce + throughput;
if (foundNounce < UINT32_MAX && bench_algo < 0)
{
uint32_t vhash[8];
sph_fugue256_context ctx_fugue;
endiandata[19] = SWAP32(foundNounce);
sph_fugue256_init(&ctx_fugue);
sph_fugue256 (&ctx_fugue, endiandata, 80);
sph_fugue256_close(&ctx_fugue, &vhash);
if (vhash[7] <= ptarget[7] && fulltest(vhash, ptarget))
{
work_set_target_ratio(work, vhash);
pdata[19] = foundNounce;
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 = pdata[19] - start_nonce;
return 0;
}