mirror of https://github.com/GOSTSec/ccminer
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
145 lines
4.5 KiB
145 lines
4.5 KiB
#include <stdio.h> |
|
|
|
#include "cuda_helper.h" |
|
|
|
// globaler Speicher für unsere Ergebnisse |
|
static uint32_t *d_hashoutput[8]; |
|
extern uint32_t *d_hash2output[8]; |
|
extern uint32_t *d_hash3output[8]; |
|
extern uint32_t *d_hash4output[8]; |
|
extern uint32_t *d_hash5output[8]; |
|
|
|
extern uint32_t *heavy_nonceVector[8]; |
|
|
|
/* Combines top 64-bits from each hash into a single hash */ |
|
__device__ |
|
static void combine_hashes(uint32_t *out, uint32_t *hash1, uint32_t *hash2, uint32_t *hash3, uint32_t *hash4) |
|
{ |
|
uint32_t lout[8]; // Combining in Registern machen |
|
|
|
#pragma unroll 8 |
|
for (int i=0; i < 8; ++i) |
|
lout[i] = 0; |
|
|
|
// das Makro setzt jeweils 4 Bits aus vier verschiedenen Hashes zu einem Nibble zusammen |
|
#define MIX(bits, mask, i) \ |
|
lout[(255 - (bits+3))/32] <<= 4; \ |
|
if ((hash1[i] & mask) != 0) lout[(255 - (bits+0))/32] |= 8; \ |
|
if ((hash2[i] & mask) != 0) lout[(255 - (bits+1))/32] |= 4; \ |
|
if ((hash3[i] & mask) != 0) lout[(255 - (bits+2))/32] |= 2; \ |
|
if ((hash4[i] & mask) != 0) lout[(255 - (bits+3))/32] |= 1; \ |
|
|
|
/* Transpose first 64 bits of each hash into out */ |
|
MIX( 0, 0x80000000, 7); |
|
MIX( 4, 0x40000000, 7); |
|
MIX( 8, 0x20000000, 7); |
|
MIX( 12, 0x10000000, 7); |
|
MIX( 16, 0x08000000, 7); |
|
MIX( 20, 0x04000000, 7); |
|
MIX( 24, 0x02000000, 7); |
|
MIX( 28, 0x01000000, 7); |
|
MIX( 32, 0x00800000, 7); |
|
MIX( 36, 0x00400000, 7); |
|
MIX( 40, 0x00200000, 7); |
|
MIX( 44, 0x00100000, 7); |
|
MIX( 48, 0x00080000, 7); |
|
MIX( 52, 0x00040000, 7); |
|
MIX( 56, 0x00020000, 7); |
|
MIX( 60, 0x00010000, 7); |
|
MIX( 64, 0x00008000, 7); |
|
MIX( 68, 0x00004000, 7); |
|
MIX( 72, 0x00002000, 7); |
|
MIX( 76, 0x00001000, 7); |
|
MIX( 80, 0x00000800, 7); |
|
MIX( 84, 0x00000400, 7); |
|
MIX( 88, 0x00000200, 7); |
|
MIX( 92, 0x00000100, 7); |
|
MIX( 96, 0x00000080, 7); |
|
MIX(100, 0x00000040, 7); |
|
MIX(104, 0x00000020, 7); |
|
MIX(108, 0x00000010, 7); |
|
MIX(112, 0x00000008, 7); |
|
MIX(116, 0x00000004, 7); |
|
MIX(120, 0x00000002, 7); |
|
MIX(124, 0x00000001, 7); |
|
|
|
MIX(128, 0x80000000, 6); |
|
MIX(132, 0x40000000, 6); |
|
MIX(136, 0x20000000, 6); |
|
MIX(140, 0x10000000, 6); |
|
MIX(144, 0x08000000, 6); |
|
MIX(148, 0x04000000, 6); |
|
MIX(152, 0x02000000, 6); |
|
MIX(156, 0x01000000, 6); |
|
MIX(160, 0x00800000, 6); |
|
MIX(164, 0x00400000, 6); |
|
MIX(168, 0x00200000, 6); |
|
MIX(172, 0x00100000, 6); |
|
MIX(176, 0x00080000, 6); |
|
MIX(180, 0x00040000, 6); |
|
MIX(184, 0x00020000, 6); |
|
MIX(188, 0x00010000, 6); |
|
MIX(192, 0x00008000, 6); |
|
MIX(196, 0x00004000, 6); |
|
MIX(200, 0x00002000, 6); |
|
MIX(204, 0x00001000, 6); |
|
MIX(208, 0x00000800, 6); |
|
MIX(212, 0x00000400, 6); |
|
MIX(216, 0x00000200, 6); |
|
MIX(220, 0x00000100, 6); |
|
MIX(224, 0x00000080, 6); |
|
MIX(228, 0x00000040, 6); |
|
MIX(232, 0x00000020, 6); |
|
MIX(236, 0x00000010, 6); |
|
MIX(240, 0x00000008, 6); |
|
MIX(244, 0x00000004, 6); |
|
MIX(248, 0x00000002, 6); |
|
MIX(252, 0x00000001, 6); |
|
|
|
#pragma unroll 8 |
|
for (int i=0; i < 8; ++i) |
|
out[i] = lout[i]; |
|
} |
|
|
|
__global__ |
|
void combine_gpu_hash(int threads, uint32_t startNounce, uint32_t *out, uint32_t *hash2, uint32_t *hash3, uint32_t *hash4, uint32_t *hash5, uint32_t *nonceVector) |
|
{ |
|
int thread = (blockDim.x * blockIdx.x + threadIdx.x); |
|
if (thread < threads) |
|
{ |
|
uint32_t nounce = nonceVector[thread]; |
|
uint32_t hashPosition = nounce - startNounce; |
|
// Die Aufgabe der combine-funktion besteht aus zwei Teilen. |
|
// 1) Komprimiere die hashes zu einem kleinen Array |
|
// 2) Errechne dort den combines-value |
|
|
|
// Die Kompression wird dadurch verwirklicht, dass im out-array weiterhin mit "thread" indiziert |
|
// wird. Die anderen Werte werden mit der nonce indiziert |
|
|
|
combine_hashes(&out[8 * thread], &hash2[8 * hashPosition], &hash3[16 * hashPosition], &hash4[16 * hashPosition], &hash5[16 * hashPosition]); |
|
} |
|
} |
|
|
|
__host__ |
|
void combine_cpu_init(int thr_id, int threads) |
|
{ |
|
// Speicher für alle Ergebnisse belegen |
|
CUDA_SAFE_CALL(cudaMalloc(&d_hashoutput[thr_id], 8 * sizeof(uint32_t) * threads)); |
|
} |
|
|
|
__host__ |
|
void combine_cpu_hash(int thr_id, int threads, uint32_t startNounce, uint32_t *hash) |
|
{ |
|
// diese Kopien sind optional, da die Hashes jetzt bereits auf der GPU liegen sollten |
|
|
|
const int threadsperblock = 128; |
|
|
|
// berechne wie viele Thread Blocks wir brauchen |
|
dim3 grid((threads + threadsperblock-1)/threadsperblock); |
|
dim3 block(threadsperblock); |
|
|
|
combine_gpu_hash <<<grid, block>>> (threads, startNounce, d_hashoutput[thr_id], d_hash2output[thr_id], d_hash3output[thr_id], d_hash4output[thr_id], d_hash5output[thr_id], heavy_nonceVector[thr_id]); |
|
|
|
// da die Hash Auswertung noch auf der CPU erfolgt, müssen die Ergebnisse auf jeden Fall zum Host kopiert werden |
|
CUDA_SAFE_CALL(cudaMemcpy(hash, d_hashoutput[thr_id], 8 * sizeof(uint32_t) * threads, cudaMemcpyDeviceToHost)); |
|
}
|
|
|