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lyra2: get a second nonce per gpu scan

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This commit is contained in:
Tanguy Pruvot 2015-05-10 03:18:14 +02:00
parent 954dbf2388
commit 34fd408440
2 changed files with 43 additions and 17 deletions
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34
Algo256/cuda_groestl256.cu
View File

@ -5,8 +5,8 @@
#include "cuda_helper.h"
uint32_t *d_gnounce[MAX_GPUS];
uint32_t *d_GNonce[MAX_GPUS];
static uint32_t *h_GNonces[MAX_GPUS];
static uint32_t *d_GNonces[MAX_GPUS];
__constant__ uint32_t pTarget[8];
@ -175,7 +175,7 @@ void groestl256_perm_Q(uint32_t thread, uint32_t *a, char *mixtabs)
}
__global__ __launch_bounds__(256,1)
void groestl256_gpu_hash32(uint32_t threads, uint32_t startNounce, uint64_t *outputHash, uint32_t *nonceVector)
void groestl256_gpu_hash32(uint32_t threads, uint32_t startNounce, uint64_t *outputHash, uint32_t *resNonces)
{
#if USE_SHARED
extern __shared__ char mixtabs[];
@ -243,7 +243,8 @@ void groestl256_gpu_hash32(uint32_t threads, uint32_t startNounce, uint64_t *out
uint32_t nonce = startNounce + thread;
if (state[15] <= pTarget[7]) {
nonceVector[0] = nonce;
atomicMin(&resNonces[1], resNonces[0]);
atomicMin(&resNonces[0], nonce);
}
}
}
@ -272,15 +273,15 @@ void groestl256_cpu_init(int thr_id, uint32_t threads)
texDef(t3up2, d_T3up, T3up_cpu, sizeof(uint32_t) * 256);
texDef(t3dn2, d_T3dn, T3dn_cpu, sizeof(uint32_t) * 256);
cudaMalloc(&d_GNonce[thr_id], sizeof(uint32_t));
cudaMallocHost(&d_gnounce[thr_id], 1*sizeof(uint32_t));
cudaMalloc(&d_GNonces[thr_id], 2*sizeof(uint32_t));
cudaMallocHost(&h_GNonces[thr_id], 2*sizeof(uint32_t));
}
__host__
uint32_t groestl256_cpu_hash_32(int thr_id, uint32_t threads, uint32_t startNounce, uint64_t *d_outputHash, int order)
{
uint32_t result = 0xffffffff;
cudaMemset(d_GNonce[thr_id], 0xff, sizeof(uint32_t));
cudaMemset(d_GNonces[thr_id], 0xff, sizeof(uint32_t));
const uint32_t threadsperblock = 256;
// berechne wie viele Thread Blocks wir brauchen
@ -292,18 +293,27 @@ uint32_t groestl256_cpu_hash_32(int thr_id, uint32_t threads, uint32_t startNoun
#else
size_t shared_size = 0;
#endif
groestl256_gpu_hash32<<<grid, block, shared_size>>>(threads, startNounce, d_outputHash, d_GNonce[thr_id]);
groestl256_gpu_hash32<<<grid, block, shared_size>>>(threads, startNounce, d_outputHash, d_GNonces[thr_id]);
MyStreamSynchronize(NULL, order, thr_id);
cudaMemcpy(d_gnounce[thr_id], d_GNonce[thr_id], sizeof(uint32_t), cudaMemcpyDeviceToHost);
cudaThreadSynchronize();
result = *d_gnounce[thr_id];
// get first found nonce
cudaMemcpy(h_GNonces[thr_id], d_GNonces[thr_id], 1*sizeof(uint32_t), cudaMemcpyDeviceToHost);
result = *h_GNonces[thr_id];
return result;
}
__host__
uint32_t groestl256_getSecNonce(int thr_id, int num)
{
uint32_t results[2];
cudaMemcpy(results, d_GNonces[thr_id], sizeof(results), cudaMemcpyDeviceToHost);
return results[num];
}
__host__
void groestl256_setTarget(const void *pTargetIn)
{
cudaMemcpyToSymbol(pTarget, pTargetIn, 8 * sizeof(uint32_t), 0, cudaMemcpyHostToDevice);
cudaMemcpyToSymbol(pTarget, pTargetIn, 32, 0, cudaMemcpyHostToDevice);
}

26
lyra2/lyra2RE.cu
View File

@ -9,7 +9,7 @@ extern "C" {
#include "miner.h"
#include "cuda_helper.h"
static _ALIGN(64) uint64_t *d_hash[MAX_GPUS];
static uint64_t* d_hash[MAX_GPUS];
extern void blake256_cpu_init(int thr_id, uint32_t threads);
extern void blake256_cpu_hash_80(const int thr_id, const uint32_t threads, const uint32_t startNonce, uint64_t *Hash, int order);
@ -21,9 +21,10 @@ extern void skein256_cpu_init(int thr_id, uint32_t threads);
extern void lyra2_cpu_hash_32(int thr_id, uint32_t threads, uint32_t startNonce, uint64_t *d_outputHash, int order);
extern void groestl256_cpu_init(int thr_id, uint32_t threads);
extern void groestl256_setTarget(const void *ptarget);
extern uint32_t groestl256_cpu_hash_32(int thr_id, uint32_t threads, uint32_t startNounce, uint64_t *d_outputHash, int order);
extern void groestl256_cpu_init(int thr_id, uint32_t threads);
extern uint32_t groestl256_getSecNonce(int thr_id, int num);
extern "C" void lyra2_hash(void *state, const void *input)
{
@ -99,18 +100,33 @@ extern "C" int scanhash_lyra2(int thr_id, uint32_t *pdata,
lyra2_cpu_hash_32(thr_id, throughput, pdata[19], d_hash[thr_id], order++);
skein256_cpu_hash_32(thr_id, throughput, pdata[19], d_hash[thr_id], order++);
*hashes_done = pdata[19] - first_nonce + throughput;
foundNonce = groestl256_cpu_hash_32(thr_id, throughput, pdata[19], d_hash[thr_id], order++);
if (foundNonce != UINT32_MAX)
{
uint32_t _ALIGN(64) vhash64[8];
const uint32_t Htarg = ptarget[7];
uint32_t vhash64[8];
be32enc(&endiandata[19], foundNonce);
lyra2_hash(vhash64, endiandata);
if (vhash64[7] <= Htarg && fulltest(vhash64, ptarget)) {
*hashes_done = pdata[19] - first_nonce + throughput;
int res = 1;
uint32_t secNonce = groestl256_getSecNonce(thr_id, 1);
if (secNonce != UINT32_MAX)
{
be32enc(&endiandata[19], secNonce);
lyra2_hash(vhash64, endiandata);
if (vhash64[7] <= ptarget[7] && fulltest(vhash64, ptarget)) {
if (opt_debug)
applog(LOG_BLUE, "GPU #%d: found second nonce %08x", device_map[thr_id], secNonce);
pdata[21] = secNonce;
res++;
}
}
pdata[19] = foundNonce;
return 1;
return res;
} else {
applog(LOG_WARNING, "GPU #%d: result for %08x does not validate on CPU!", device_map[thr_id], foundNonce);
}