Tanguy Pruvot
10 years ago
10 changed files with 316 additions and 3 deletions
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#include "miner.h" |
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extern "C" { |
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#include <stdint.h> |
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#include <memory.h> |
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} |
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#include "cuda_helper.h" |
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static const uint64_t host_keccak_round_constants[24] = { |
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0x0000000000000001ull, 0x0000000000008082ull, |
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0x800000000000808aull, 0x8000000080008000ull, |
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0x000000000000808bull, 0x0000000080000001ull, |
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0x8000000080008081ull, 0x8000000000008009ull, |
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0x000000000000008aull, 0x0000000000000088ull, |
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0x0000000080008009ull, 0x000000008000000aull, |
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0x000000008000808bull, 0x800000000000008bull, |
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0x8000000000008089ull, 0x8000000000008003ull, |
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0x8000000000008002ull, 0x8000000000000080ull, |
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0x000000000000800aull, 0x800000008000000aull, |
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0x8000000080008081ull, 0x8000000000008080ull, |
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0x0000000080000001ull, 0x8000000080008008ull |
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}; |
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uint32_t *d_nounce[8]; |
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uint32_t *d_KNonce[8]; |
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__constant__ uint32_t pTarget[8]; |
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__constant__ uint64_t keccak_round_constants[24]; |
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__constant__ uint64_t c_PaddedMessage80[10]; // padded message (80 bytes + padding) |
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static __device__ __forceinline__ |
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void keccak_block(uint64_t *s, const uint64_t *keccak_round_constants) { |
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size_t i; |
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uint64_t t[5], u[5], v, w; |
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/* absorb input */ |
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for (i = 0; i < 24; i++) { |
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/* theta: c = a[0,i] ^ a[1,i] ^ .. a[4,i] */ |
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t[0] = s[0] ^ s[5] ^ s[10] ^ s[15] ^ s[20]; |
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t[1] = s[1] ^ s[6] ^ s[11] ^ s[16] ^ s[21]; |
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t[2] = s[2] ^ s[7] ^ s[12] ^ s[17] ^ s[22]; |
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t[3] = s[3] ^ s[8] ^ s[13] ^ s[18] ^ s[23]; |
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t[4] = s[4] ^ s[9] ^ s[14] ^ s[19] ^ s[24]; |
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/* theta: d[i] = c[i+4] ^ rotl(c[i+1],1) */ |
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u[0] = t[4] ^ ROTL64(t[1], 1); |
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u[1] = t[0] ^ ROTL64(t[2], 1); |
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u[2] = t[1] ^ ROTL64(t[3], 1); |
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u[3] = t[2] ^ ROTL64(t[4], 1); |
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u[4] = t[3] ^ ROTL64(t[0], 1); |
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/* theta: a[0,i], a[1,i], .. a[4,i] ^= d[i] */ |
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s[0] ^= u[0]; s[5] ^= u[0]; s[10] ^= u[0]; s[15] ^= u[0]; s[20] ^= u[0]; |
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s[1] ^= u[1]; s[6] ^= u[1]; s[11] ^= u[1]; s[16] ^= u[1]; s[21] ^= u[1]; |
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s[2] ^= u[2]; s[7] ^= u[2]; s[12] ^= u[2]; s[17] ^= u[2]; s[22] ^= u[2]; |
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s[3] ^= u[3]; s[8] ^= u[3]; s[13] ^= u[3]; s[18] ^= u[3]; s[23] ^= u[3]; |
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s[4] ^= u[4]; s[9] ^= u[4]; s[14] ^= u[4]; s[19] ^= u[4]; s[24] ^= u[4]; |
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/* rho pi: b[..] = rotl(a[..], ..) */ |
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v = s[ 1]; |
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s[ 1] = ROTL64(s[ 6], 44); |
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s[ 6] = ROTL64(s[ 9], 20); |
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s[ 9] = ROTL64(s[22], 61); |
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s[22] = ROTL64(s[14], 39); |
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s[14] = ROTL64(s[20], 18); |
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s[20] = ROTL64(s[ 2], 62); |
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s[ 2] = ROTL64(s[12], 43); |
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s[12] = ROTL64(s[13], 25); |
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s[13] = ROTL64(s[19], 8); |
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s[19] = ROTL64(s[23], 56); |
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s[23] = ROTL64(s[15], 41); |
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s[15] = ROTL64(s[ 4], 27); |
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s[ 4] = ROTL64(s[24], 14); |
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s[24] = ROTL64(s[21], 2); |
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s[21] = ROTL64(s[ 8], 55); |
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s[ 8] = ROTL64(s[16], 45); |
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s[16] = ROTL64(s[ 5], 36); |
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s[ 5] = ROTL64(s[ 3], 28); |
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s[ 3] = ROTL64(s[18], 21); |
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s[18] = ROTL64(s[17], 15); |
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s[17] = ROTL64(s[11], 10); |
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s[11] = ROTL64(s[ 7], 6); |
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s[ 7] = ROTL64(s[10], 3); |
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s[10] = ROTL64( v, 1); |
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/* chi: a[i,j] ^= ~b[i,j+1] & b[i,j+2] */ |
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v = s[ 0]; w = s[ 1]; s[ 0] ^= (~w) & s[ 2]; s[ 1] ^= (~s[ 2]) & s[ 3]; s[ 2] ^= (~s[ 3]) & s[ 4]; s[ 3] ^= (~s[ 4]) & v; s[ 4] ^= (~v) & w; |
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v = s[ 5]; w = s[ 6]; s[ 5] ^= (~w) & s[ 7]; s[ 6] ^= (~s[ 7]) & s[ 8]; s[ 7] ^= (~s[ 8]) & s[ 9]; s[ 8] ^= (~s[ 9]) & v; s[ 9] ^= (~v) & w; |
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v = s[10]; w = s[11]; s[10] ^= (~w) & s[12]; s[11] ^= (~s[12]) & s[13]; s[12] ^= (~s[13]) & s[14]; s[13] ^= (~s[14]) & v; s[14] ^= (~v) & w; |
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v = s[15]; w = s[16]; s[15] ^= (~w) & s[17]; s[16] ^= (~s[17]) & s[18]; s[17] ^= (~s[18]) & s[19]; s[18] ^= (~s[19]) & v; s[19] ^= (~v) & w; |
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v = s[20]; w = s[21]; s[20] ^= (~w) & s[22]; s[21] ^= (~s[22]) & s[23]; s[22] ^= (~s[23]) & s[24]; s[23] ^= (~s[24]) & v; s[24] ^= (~v) & w; |
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/* iota: a[0,0] ^= round constant */ |
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s[0] ^= keccak_round_constants[i]; |
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} |
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} |
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__global__ |
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void keccak256_gpu_hash_80(int threads, uint32_t startNounce, void *outputHash, uint32_t *resNounce) |
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{ |
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int thread = (blockDim.x * blockIdx.x + threadIdx.x); |
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if (thread < threads) |
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{ |
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uint32_t nounce = startNounce + thread; |
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uint64_t keccak_gpu_state[25]; |
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//#pragma unroll 25 |
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for (int i=0; i<25; i++) { |
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if(i<9) {keccak_gpu_state[i] = c_PaddedMessage80[i];} |
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else {keccak_gpu_state[i] = 0;} |
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} |
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keccak_gpu_state[9]=REPLACE_HIWORD(c_PaddedMessage80[9],cuda_swab32(nounce)); |
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keccak_gpu_state[10]=0x0000000000000001; |
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keccak_gpu_state[16]=0x8000000000000000; |
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keccak_block(keccak_gpu_state,keccak_round_constants); |
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bool rc = false; |
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if (keccak_gpu_state[3] <= ((uint64_t*)pTarget)[3]) {rc = true;} |
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if (rc == true) { |
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if(resNounce[0] > nounce) |
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resNounce[0] = nounce; |
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} |
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} //thread |
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} |
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void keccak256_cpu_init(int thr_id, int threads) |
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{ |
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CUDA_SAFE_CALL(cudaMemcpyToSymbol(keccak_round_constants, |
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host_keccak_round_constants, |
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sizeof(host_keccak_round_constants), |
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0, cudaMemcpyHostToDevice)); |
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CUDA_SAFE_CALL(cudaMalloc(&d_KNonce[thr_id], sizeof(uint32_t))); |
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CUDA_SAFE_CALL(cudaMallocHost(&d_nounce[thr_id], 1*sizeof(uint32_t))); |
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} |
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__host__ |
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uint32_t keccak256_cpu_hash_80(int thr_id, int threads, uint32_t startNounce, uint32_t *d_outputHash, int order) |
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{ |
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uint32_t result = 0xffffffff; |
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cudaMemset(d_KNonce[thr_id], 0xff, sizeof(uint32_t)); |
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const int threadsperblock = 128; |
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dim3 grid((threads + threadsperblock-1)/threadsperblock); |
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dim3 block(threadsperblock); |
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size_t shared_size = 0; |
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keccak256_gpu_hash_80<<<grid, block, shared_size>>>(threads, startNounce, d_outputHash, d_KNonce[thr_id]); |
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MyStreamSynchronize(NULL, order, thr_id); |
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cudaMemcpy(d_nounce[thr_id], d_KNonce[thr_id], sizeof(uint32_t), cudaMemcpyDeviceToHost); |
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cudaThreadSynchronize(); |
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result = *d_nounce[thr_id]; |
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return result; |
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} |
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__host__ |
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void keccak256_setBlock_80(void *pdata,const void *pTargetIn) |
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{ |
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unsigned char PaddedMessage[80]; |
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memcpy(PaddedMessage, pdata, 80); |
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CUDA_SAFE_CALL(cudaMemcpyToSymbol(pTarget, pTargetIn, 8*sizeof(uint32_t), 0, cudaMemcpyHostToDevice)); |
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CUDA_SAFE_CALL(cudaMemcpyToSymbol(c_PaddedMessage80, PaddedMessage, 10*sizeof(uint64_t), 0, cudaMemcpyHostToDevice)); |
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} |
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@ -0,0 +1,103 @@
@@ -0,0 +1,103 @@
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/* |
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* Keccak 256 |
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* |
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*/ |
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extern "C" |
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{ |
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#include "sph/sph_shavite.h" |
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#include "sph/sph_simd.h" |
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#include "sph/sph_keccak.h" |
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#include "miner.h" |
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} |
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#include "cuda_helper.h" |
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// in cpu-miner.c |
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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 keccak256_cpu_init(int thr_id, int threads); |
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extern void keccak256_setBlock_80(void *pdata,const void *ptarget); |
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extern uint32_t keccak256_cpu_hash_80(int thr_id, int threads, uint32_t startNounce, uint32_t *d_hash, int order); |
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// CPU Hash |
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extern "C" void keccak256_hash(void *state, const void *input) |
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{ |
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sph_keccak_context ctx_keccak; |
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uint32_t hash[16]; |
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sph_keccak256_init(&ctx_keccak); |
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sph_keccak256 (&ctx_keccak, input, 80); |
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sph_keccak256_close(&ctx_keccak, (void*) hash); |
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memcpy(state, hash, 32); |
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} |
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extern "C" int scanhash_keccak256(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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if (opt_benchmark) |
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((uint32_t*)ptarget)[7] = 0x000f; |
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const uint32_t Htarg = ptarget[7]; |
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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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if (!init[thr_id]) { |
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cudaSetDevice(device_map[thr_id]); |
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CUDA_SAFE_CALL(cudaMalloc(&d_hash[thr_id], 16 * sizeof(uint32_t) * throughput)); |
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keccak256_cpu_init(thr_id, throughput); |
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init[thr_id] = true; |
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} |
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uint32_t endiandata[20]; |
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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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} |
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keccak256_setBlock_80((void*)endiandata, ptarget); |
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do { |
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int order = 0; |
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uint32_t foundNonce = keccak256_cpu_hash_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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keccak256_hash(vhash64, endiandata); |
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if (vhash64[7] <= Htarg && fulltest(vhash64, ptarget)) { |
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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_DEBUG, "GPU #%d: result for nounce %08x does not validate on CPU!", thr_id, foundNonce); |
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} |
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} |
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if ((uint64_t) pdata[19] + throughput > (uint64_t) max_nonce) { |
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pdata[19] = max_nonce; |
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break; |
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} |
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pdata[19] += throughput; |
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} while (!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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