GOSTCoin CUDA miner project, compatible with most nvidia cards, containing only gostd algo
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/**
* Tribus Algo for Denarius
*
* tpruvot@github 06 2017 - GPLv3
*
*/
extern "C" {
#include "sph/sph_jh.h"
#include "sph/sph_keccak.h"
#include "sph/sph_echo.h"
}
#include "miner.h"
#include "cuda_helper.h"
#include "x11/cuda_x11.h"
void jh512_setBlock_80(int thr_id, uint32_t *endiandata);
void jh512_cuda_hash_80(const int thr_id, const uint32_t threads, const uint32_t startNounce, uint32_t *d_hash);
static uint32_t *d_hash[MAX_GPUS];
// cpu hash
extern "C" void tribus_hash(void *state, const void *input)
{
uint8_t _ALIGN(64) hash[64];
sph_jh512_context ctx_jh;
sph_keccak512_context ctx_keccak;
sph_echo512_context ctx_echo;
sph_jh512_init(&ctx_jh);
sph_jh512(&ctx_jh, input, 80);
sph_jh512_close(&ctx_jh, (void*) hash);
sph_keccak512_init(&ctx_keccak);
sph_keccak512(&ctx_keccak, (const void*) hash, 64);
sph_keccak512_close(&ctx_keccak, (void*) hash);
sph_echo512_init(&ctx_echo);
sph_echo512(&ctx_echo, (const void*) hash, 64);
sph_echo512_close(&ctx_echo, (void*) hash);
memcpy(state, hash, 32);
}
static bool init[MAX_GPUS] = { 0 };
extern "C" int scanhash_tribus(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;
const uint32_t first_nonce = pdata[19];
int8_t intensity = is_windows() ? 20 : 23;
uint32_t throughput = cuda_default_throughput(thr_id, 1 << intensity);
if (init[thr_id]) throughput = min(throughput, max_nonce - first_nonce);
if (opt_benchmark)
((uint32_t*)ptarget)[7] = 0x00FF;
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();
}
gpulog(LOG_INFO, thr_id, "Intensity set to %g, %u cuda threads", throughput2intensity(throughput), throughput);
quark_jh512_cpu_init(thr_id, throughput);
quark_keccak512_cpu_init(thr_id, throughput);
x11_echo512_cpu_init(thr_id, throughput);
// char[64] work space for hashes results
CUDA_SAFE_CALL(cudaMalloc(&d_hash[thr_id], (size_t)64 * throughput));
cuda_check_cpu_init(thr_id, throughput);
init[thr_id] = true;
}
for (int k=0; k < 20; k++)
be32enc(&endiandata[k], pdata[k]);
jh512_setBlock_80(thr_id, endiandata);
cuda_check_cpu_setTarget(ptarget);
work->valid_nonces = 0;
do {
int order = 1;
// Hash with CUDA
jh512_cuda_hash_80(thr_id, throughput, pdata[19], d_hash[thr_id]);
quark_keccak512_cpu_hash_64(thr_id, throughput, pdata[19], NULL, d_hash[thr_id], order++);
x11_echo512_cpu_hash_64(thr_id, throughput, pdata[19], NULL, d_hash[thr_id], order++);
*hashes_done = pdata[19] - first_nonce + throughput;
work->nonces[0] = cuda_check_hash(thr_id, throughput, pdata[19], d_hash[thr_id]);
if (work->nonces[0] != UINT32_MAX)
{
const uint32_t Htarg = ptarget[7];
uint32_t _ALIGN(64) vhash[8];
be32enc(&endiandata[19], work->nonces[0]);
tribus_hash(vhash, endiandata);
if (vhash[7] <= Htarg && fulltest(vhash, ptarget)) {
work->valid_nonces = 1;
work_set_target_ratio(work, vhash);
work->nonces[1] = cuda_check_hash_suppl(thr_id, throughput, pdata[19], d_hash[thr_id], 1);
if (work->nonces[1] != 0) {
be32enc(&endiandata[19], work->nonces[1]);
tribus_hash(vhash, endiandata);
bn_set_target_ratio(work, vhash, 1);
work->valid_nonces++;
pdata[19] = max(work->nonces[0], work->nonces[1]) + 1;
} else {
pdata[19] = work->nonces[0] + 1; // cursor
}
goto out;
}
else if (vhash[7] > Htarg) {
gpu_increment_reject(thr_id);
if (!opt_quiet)
gpulog(LOG_WARNING, thr_id, "result for %08x does not validate on CPU!", work->nonces[0]);
pdata[19] = work->nonces[0] + 1;
continue;
}
}
if ((uint64_t) throughput + pdata[19] >= max_nonce) {
pdata[19] = max_nonce;
break;
}
pdata[19] += throughput;
} while (!work_restart[thr_id].restart);
out:
// *hashes_done = pdata[19] - first_nonce;
return work->valid_nonces;
}
// ressources cleanup
extern "C" void free_tribus(int thr_id)
{
if (!init[thr_id])
return;
cudaThreadSynchronize();
cudaFree(d_hash[thr_id]);
quark_groestl512_cpu_free(thr_id);
cuda_check_cpu_free(thr_id);
init[thr_id] = false;
cudaDeviceSynchronize();
}