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590 lines
16 KiB
590 lines
16 KiB
/** |
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* Blake-256 Cuda Kernel (Tested on SM 5/5.2) |
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* |
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* Tanguy Pruvot / SP - Jan 2016 |
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*/ |
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#include <stdint.h> |
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#include <memory.h> |
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#include "miner.h" |
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extern "C" { |
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#include "sph/sph_blake.h" |
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} |
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/* threads per block */ |
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#define TPB 512 |
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/* hash by cpu with blake 256 */ |
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extern "C" void blake256hash(void *output, const void *input, int8_t rounds = 14) |
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{ |
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uchar hash[64]; |
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sph_blake256_context ctx; |
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sph_blake256_set_rounds(rounds); |
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sph_blake256_init(&ctx); |
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sph_blake256(&ctx, input, 80); |
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sph_blake256_close(&ctx, hash); |
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memcpy(output, hash, 32); |
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} |
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#include "cuda_helper.h" |
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#ifdef __INTELLISENSE__ |
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#define __byte_perm(x, y, b) x |
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#endif |
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__constant__ uint32_t _ALIGN(32) d_data[12]; |
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/* 8 adapters max */ |
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static uint32_t *d_resNonce[MAX_GPUS]; |
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static uint32_t *h_resNonce[MAX_GPUS]; |
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/* max count of found nonces in one call */ |
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#define NBN 2 |
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static uint32_t extra_results[NBN] = { UINT32_MAX }; |
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#define GSPREC(a,b,c,d,x,y) { \ |
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v[a] += (m[x] ^ c_u256[y]) + v[b]; \ |
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v[d] = __byte_perm(v[d] ^ v[a],0, 0x1032); \ |
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v[c] += v[d]; \ |
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v[b] = SPH_ROTR32(v[b] ^ v[c], 12); \ |
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v[a] += (m[y] ^ c_u256[x]) + v[b]; \ |
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v[d] = __byte_perm(v[d] ^ v[a],0, 0x0321); \ |
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v[c] += v[d]; \ |
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v[b] = SPH_ROTR32(v[b] ^ v[c], 7); \ |
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} |
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__device__ __forceinline__ |
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void blake256_compress_14(uint32_t *h, const uint32_t *block, const uint32_t T0) |
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{ |
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uint32_t /*_ALIGN(8)*/ m[16]; |
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uint32_t v[16]; |
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m[0] = block[0]; |
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m[1] = block[1]; |
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m[2] = block[2]; |
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m[3] = block[3]; |
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const uint32_t c_u256[16] = { |
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0x243F6A88, 0x85A308D3, 0x13198A2E, 0x03707344, |
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0xA4093822, 0x299F31D0, 0x082EFA98, 0xEC4E6C89, |
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0x452821E6, 0x38D01377, 0xBE5466CF, 0x34E90C6C, |
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0xC0AC29B7, 0xC97C50DD, 0x3F84D5B5, 0xB5470917 |
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}; |
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const uint32_t c_Padding[12] = { |
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0x80000000UL, 0, 0, 0, |
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0, 0, 0, 0, |
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0, 1, 0, 640, |
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}; |
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#pragma unroll |
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for (uint32_t i = 0; i < 12; i++) { |
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m[i+4] = c_Padding[i]; |
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} |
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//#pragma unroll 8 |
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for(uint32_t i = 0; i < 8; i++) |
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v[i] = h[i]; |
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v[ 8] = c_u256[0]; |
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v[ 9] = c_u256[1]; |
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v[10] = c_u256[2]; |
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v[11] = c_u256[3]; |
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v[12] = c_u256[4] ^ T0; |
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v[13] = c_u256[5] ^ T0; |
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v[14] = c_u256[6]; |
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v[15] = c_u256[7]; |
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// { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 }, |
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GSPREC(0, 4, 0x8, 0xC,0,1); |
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GSPREC(1, 5, 0x9, 0xD,2,3); |
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GSPREC(2, 6, 0xA, 0xE, 4,5); |
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GSPREC(3, 7, 0xB, 0xF, 6,7); |
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GSPREC(0, 5, 0xA, 0xF, 8,9); |
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GSPREC(1, 6, 0xB, 0xC, 10,11); |
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GSPREC(2, 7, 0x8, 0xD, 12,13); |
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GSPREC(3, 4, 0x9, 0xE, 14,15); |
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// { 14, 10, 4, 8, 9, 15, 13, 6, 1, 12, 0, 2, 11, 7, 5, 3 }, |
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GSPREC(0, 4, 0x8, 0xC, 14, 10); |
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GSPREC(1, 5, 0x9, 0xD, 4, 8); |
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GSPREC(2, 6, 0xA, 0xE, 9, 15); |
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GSPREC(3, 7, 0xB, 0xF, 13, 6); |
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GSPREC(0, 5, 0xA, 0xF, 1, 12); |
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GSPREC(1, 6, 0xB, 0xC, 0, 2); |
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GSPREC(2, 7, 0x8, 0xD, 11, 7); |
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GSPREC(3, 4, 0x9, 0xE, 5, 3); |
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// { 11, 8, 12, 0, 5, 2, 15, 13, 10, 14, 3, 6, 7, 1, 9, 4 }, |
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GSPREC(0, 4, 0x8, 0xC, 11, 8); |
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GSPREC(1, 5, 0x9, 0xD, 12, 0); |
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GSPREC(2, 6, 0xA, 0xE, 5, 2); |
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GSPREC(3, 7, 0xB, 0xF, 15, 13); |
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GSPREC(0, 5, 0xA, 0xF, 10, 14); |
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GSPREC(1, 6, 0xB, 0xC, 3, 6); |
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GSPREC(2, 7, 0x8, 0xD, 7, 1); |
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GSPREC(3, 4, 0x9, 0xE, 9, 4); |
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// { 7, 9, 3, 1, 13, 12, 11, 14, 2, 6, 5, 10, 4, 0, 15, 8 }, |
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GSPREC(0, 4, 0x8, 0xC, 7, 9); |
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GSPREC(1, 5, 0x9, 0xD, 3, 1); |
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GSPREC(2, 6, 0xA, 0xE, 13, 12); |
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GSPREC(3, 7, 0xB, 0xF, 11, 14); |
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GSPREC(0, 5, 0xA, 0xF, 2, 6); |
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GSPREC(1, 6, 0xB, 0xC, 5, 10); |
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GSPREC(2, 7, 0x8, 0xD, 4, 0); |
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GSPREC(3, 4, 0x9, 0xE, 15, 8); |
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// { 9, 0, 5, 7, 2, 4, 10, 15, 14, 1, 11, 12, 6, 8, 3, 13 }, |
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GSPREC(0, 4, 0x8, 0xC, 9, 0); |
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GSPREC(1, 5, 0x9, 0xD, 5, 7); |
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GSPREC(2, 6, 0xA, 0xE, 2, 4); |
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GSPREC(3, 7, 0xB, 0xF, 10, 15); |
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GSPREC(0, 5, 0xA, 0xF, 14, 1); |
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GSPREC(1, 6, 0xB, 0xC, 11, 12); |
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GSPREC(2, 7, 0x8, 0xD, 6, 8); |
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GSPREC(3, 4, 0x9, 0xE, 3, 13); |
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// { 2, 12, 6, 10, 0, 11, 8, 3, 4, 13, 7, 5, 15, 14, 1, 9 }, |
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GSPREC(0, 4, 0x8, 0xC, 2, 12); |
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GSPREC(1, 5, 0x9, 0xD, 6, 10); |
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GSPREC(2, 6, 0xA, 0xE, 0, 11); |
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GSPREC(3, 7, 0xB, 0xF, 8, 3); |
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GSPREC(0, 5, 0xA, 0xF, 4, 13); |
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GSPREC(1, 6, 0xB, 0xC, 7, 5); |
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GSPREC(2, 7, 0x8, 0xD, 15, 14); |
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GSPREC(3, 4, 0x9, 0xE, 1, 9); |
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// { 12, 5, 1, 15, 14, 13, 4, 10, 0, 7, 6, 3, 9, 2, 8, 11 }, |
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GSPREC(0, 4, 0x8, 0xC, 12, 5); |
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GSPREC(1, 5, 0x9, 0xD, 1, 15); |
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GSPREC(2, 6, 0xA, 0xE, 14, 13); |
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GSPREC(3, 7, 0xB, 0xF, 4, 10); |
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GSPREC(0, 5, 0xA, 0xF, 0, 7); |
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GSPREC(1, 6, 0xB, 0xC, 6, 3); |
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GSPREC(2, 7, 0x8, 0xD, 9, 2); |
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GSPREC(3, 4, 0x9, 0xE, 8, 11); |
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// { 13, 11, 7, 14, 12, 1, 3, 9, 5, 0, 15, 4, 8, 6, 2, 10 }, |
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GSPREC(0, 4, 0x8, 0xC, 13, 11); |
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GSPREC(1, 5, 0x9, 0xD, 7, 14); |
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GSPREC(2, 6, 0xA, 0xE, 12, 1); |
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GSPREC(3, 7, 0xB, 0xF, 3, 9); |
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GSPREC(0, 5, 0xA, 0xF, 5, 0); |
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GSPREC(1, 6, 0xB, 0xC, 15, 4); |
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GSPREC(2, 7, 0x8, 0xD, 8, 6); |
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GSPREC(3, 4, 0x9, 0xE, 2, 10); |
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// { 6, 15, 14, 9, 11, 3, 0, 8, 12, 2, 13, 7, 1, 4, 10, 5 }, |
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GSPREC(0, 4, 0x8, 0xC, 6, 15); |
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GSPREC(1, 5, 0x9, 0xD, 14, 9); |
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GSPREC(2, 6, 0xA, 0xE, 11, 3); |
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GSPREC(3, 7, 0xB, 0xF, 0, 8); |
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GSPREC(0, 5, 0xA, 0xF, 12, 2); |
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GSPREC(1, 6, 0xB, 0xC, 13, 7); |
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GSPREC(2, 7, 0x8, 0xD, 1, 4); |
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GSPREC(3, 4, 0x9, 0xE, 10, 5); |
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// { 10, 2, 8, 4, 7, 6, 1, 5, 15, 11, 9, 14, 3, 12, 13, 0 }, |
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GSPREC(0, 4, 0x8, 0xC, 10, 2); |
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GSPREC(1, 5, 0x9, 0xD, 8, 4); |
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GSPREC(2, 6, 0xA, 0xE, 7, 6); |
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GSPREC(3, 7, 0xB, 0xF, 1, 5); |
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GSPREC(0, 5, 0xA, 0xF, 15, 11); |
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GSPREC(1, 6, 0xB, 0xC, 9, 14); |
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GSPREC(2, 7, 0x8, 0xD, 3, 12); |
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GSPREC(3, 4, 0x9, 0xE, 13, 0); |
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// { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 }, |
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GSPREC(0, 4, 0x8, 0xC, 0, 1); |
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GSPREC(1, 5, 0x9, 0xD, 2, 3); |
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GSPREC(2, 6, 0xA, 0xE, 4, 5); |
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GSPREC(3, 7, 0xB, 0xF, 6, 7); |
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GSPREC(0, 5, 0xA, 0xF, 8, 9); |
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GSPREC(1, 6, 0xB, 0xC, 10, 11); |
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GSPREC(2, 7, 0x8, 0xD, 12, 13); |
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GSPREC(3, 4, 0x9, 0xE, 14, 15); |
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// { 14, 10, 4, 8, 9, 15, 13, 6, 1, 12, 0, 2, 11, 7, 5, 3 }, |
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GSPREC(0, 4, 0x8, 0xC, 14, 10); |
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GSPREC(1, 5, 0x9, 0xD, 4, 8); |
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GSPREC(2, 6, 0xA, 0xE, 9, 15); |
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GSPREC(3, 7, 0xB, 0xF, 13, 6); |
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GSPREC(0, 5, 0xA, 0xF, 1, 12); |
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GSPREC(1, 6, 0xB, 0xC, 0, 2); |
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GSPREC(2, 7, 0x8, 0xD, 11, 7); |
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GSPREC(3, 4, 0x9, 0xE, 5, 3); |
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// { 11, 8, 12, 0, 5, 2, 15, 13, 10, 14, 3, 6, 7, 1, 9, 4 }, |
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GSPREC(0, 4, 0x8, 0xC, 11, 8); |
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GSPREC(1, 5, 0x9, 0xD, 12, 0); |
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GSPREC(2, 6, 0xA, 0xE, 5, 2); |
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GSPREC(3, 7, 0xB, 0xF, 15, 13); |
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GSPREC(0, 5, 0xA, 0xF, 10, 14); |
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GSPREC(1, 6, 0xB, 0xC, 3, 6); |
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GSPREC(2, 7, 0x8, 0xD, 7, 1); |
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GSPREC(3, 4, 0x9, 0xE, 9, 4); |
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// { 7, 9, 3, 1, 13, 12, 11, 14, 2, 6, 5, 10, 4, 0, 15, 8 }, |
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GSPREC(0, 4, 0x8, 0xC, 7, 9); |
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GSPREC(1, 5, 0x9, 0xD, 3, 1); |
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GSPREC(2, 6, 0xA, 0xE, 13, 12); |
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GSPREC(3, 7, 0xB, 0xF, 11, 14); |
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GSPREC(0, 5, 0xA, 0xF, 2, 6); |
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GSPREC(1, 6, 0xB, 0xC, 5, 10); |
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GSPREC(2, 7, 0x8, 0xD, 4, 0); |
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GSPREC(3, 4, 0x9, 0xE, 15, 8); |
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// only compute h6 & 7 |
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h[6U] ^= v[6U] ^ v[14U]; |
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h[7U] ^= v[7U] ^ v[15U]; |
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} |
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/* ############################################################################################################################### */ |
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/* Precalculated 1st 64-bytes block (midstate) method */ |
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__global__ __launch_bounds__(1024,1) |
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void blake256_gpu_hash_16(const uint32_t threads, const uint32_t startNonce, uint32_t *resNonce, const uint64_t highTarget) |
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{ |
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uint32_t thread = (blockDim.x * blockIdx.x + threadIdx.x); |
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if (thread < threads) |
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{ |
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const uint32_t nonce = startNonce + thread; |
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uint32_t _ALIGN(16) h[8]; |
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#pragma unroll |
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for(int i=0; i < 8; i++) { |
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h[i] = d_data[i]; |
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} |
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// ------ Close: Bytes 64 to 80 ------ |
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uint32_t _ALIGN(16) ending[4]; |
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ending[0] = d_data[8]; |
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ending[1] = d_data[9]; |
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ending[2] = d_data[10]; |
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ending[3] = nonce; /* our tested value */ |
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blake256_compress_14(h, ending, 640); |
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if (h[7] == 0 && cuda_swab32(h[6]) <= highTarget) { |
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#if NBN == 2 |
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if (resNonce[0] != UINT32_MAX) |
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resNonce[1] = nonce; |
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else |
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resNonce[0] = nonce; |
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#else |
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resNonce[0] = nonce; |
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#endif |
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} |
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} |
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} |
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__global__ |
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#if __CUDA_ARCH__ >= 500 |
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__launch_bounds__(512, 3) /* 40 regs */ |
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#endif |
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void blake256_gpu_hash_16_8(const uint32_t threads, const uint32_t startNonce, uint32_t *resNonce, const uint64_t highTarget) |
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{ |
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uint32_t thread = (blockDim.x * blockIdx.x + threadIdx.x); |
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if (thread < threads) |
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{ |
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uint32_t h[8]; |
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const uint32_t nonce = startNonce + thread; |
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#pragma unroll |
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for (int i = 0; i < 8; i++) { |
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h[i] = d_data[i]; |
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} |
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// ------ Close: Bytes 64 to 80 ------ |
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uint32_t m[16] = { |
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d_data[8], d_data[9], d_data[10], nonce, |
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0x80000000UL, 0, 0, 0, |
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0, 0, 0, 0, |
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0, 1, 0, 640, |
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}; |
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const uint32_t c_u256[16] = { |
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0x243F6A88, 0x85A308D3, 0x13198A2E, 0x03707344, |
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0xA4093822, 0x299F31D0, 0x082EFA98, 0xEC4E6C89, |
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0x452821E6, 0x38D01377, 0xBE5466CF, 0x34E90C6C, |
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0xC0AC29B7, 0xC97C50DD, 0x3F84D5B5, 0xB5470917 |
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}; |
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uint32_t v[16]; |
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#pragma unroll |
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for (uint32_t i = 0; i < 8; i++) |
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v[i] = h[i]; |
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v[8] = c_u256[0]; |
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v[9] = c_u256[1]; |
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v[10] = c_u256[2]; |
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v[11] = c_u256[3]; |
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v[12] = c_u256[4] ^ 640U; |
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v[13] = c_u256[5] ^ 640U; |
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v[14] = c_u256[6]; |
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v[15] = c_u256[7]; |
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// { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 }, |
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GSPREC(0, 4, 0x8, 0xC, 0, 1); |
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GSPREC(1, 5, 0x9, 0xD, 2, 3); |
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GSPREC(2, 6, 0xA, 0xE, 4, 5); |
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GSPREC(3, 7, 0xB, 0xF, 6, 7); |
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GSPREC(0, 5, 0xA, 0xF, 8, 9); |
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GSPREC(1, 6, 0xB, 0xC, 10, 11); |
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GSPREC(2, 7, 0x8, 0xD, 12, 13); |
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GSPREC(3, 4, 0x9, 0xE, 14, 15); |
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// { 14, 10, 4, 8, 9, 15, 13, 6, 1, 12, 0, 2, 11, 7, 5, 3 }, |
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GSPREC(0, 4, 0x8, 0xC, 14, 10); |
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GSPREC(1, 5, 0x9, 0xD, 4, 8); |
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GSPREC(2, 6, 0xA, 0xE, 9, 15); |
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GSPREC(3, 7, 0xB, 0xF, 13, 6); |
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GSPREC(0, 5, 0xA, 0xF, 1, 12); |
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GSPREC(1, 6, 0xB, 0xC, 0, 2); |
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GSPREC(2, 7, 0x8, 0xD, 11, 7); |
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GSPREC(3, 4, 0x9, 0xE, 5, 3); |
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// { 11, 8, 12, 0, 5, 2, 15, 13, 10, 14, 3, 6, 7, 1, 9, 4 }, |
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GSPREC(0, 4, 0x8, 0xC, 11, 8); |
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GSPREC(1, 5, 0x9, 0xD, 12, 0); |
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GSPREC(2, 6, 0xA, 0xE, 5, 2); |
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GSPREC(3, 7, 0xB, 0xF, 15, 13); |
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GSPREC(0, 5, 0xA, 0xF, 10, 14); |
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GSPREC(1, 6, 0xB, 0xC, 3, 6); |
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GSPREC(2, 7, 0x8, 0xD, 7, 1); |
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GSPREC(3, 4, 0x9, 0xE, 9, 4); |
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// { 7, 9, 3, 1, 13, 12, 11, 14, 2, 6, 5, 10, 4, 0, 15, 8 }, |
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GSPREC(0, 4, 0x8, 0xC, 7, 9); |
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GSPREC(1, 5, 0x9, 0xD, 3, 1); |
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GSPREC(2, 6, 0xA, 0xE, 13, 12); |
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GSPREC(3, 7, 0xB, 0xF, 11, 14); |
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GSPREC(0, 5, 0xA, 0xF, 2, 6); |
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GSPREC(1, 6, 0xB, 0xC, 5, 10); |
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GSPREC(2, 7, 0x8, 0xD, 4, 0); |
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GSPREC(3, 4, 0x9, 0xE, 15, 8); |
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// { 9, 0, 5, 7, 2, 4, 10, 15, 14, 1, 11, 12, 6, 8, 3, 13 }, |
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GSPREC(0, 4, 0x8, 0xC, 9, 0); |
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GSPREC(1, 5, 0x9, 0xD, 5, 7); |
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GSPREC(2, 6, 0xA, 0xE, 2, 4); |
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GSPREC(3, 7, 0xB, 0xF, 10, 15); |
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GSPREC(0, 5, 0xA, 0xF, 14, 1); |
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GSPREC(1, 6, 0xB, 0xC, 11, 12); |
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GSPREC(2, 7, 0x8, 0xD, 6, 8); |
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GSPREC(3, 4, 0x9, 0xE, 3, 13); |
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// { 2, 12, 6, 10, 0, 11, 8, 3, 4, 13, 7, 5, 15, 14, 1, 9 }, |
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GSPREC(0, 4, 0x8, 0xC, 2, 12); |
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GSPREC(1, 5, 0x9, 0xD, 6, 10); |
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GSPREC(2, 6, 0xA, 0xE, 0, 11); |
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GSPREC(3, 7, 0xB, 0xF, 8, 3); |
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GSPREC(0, 5, 0xA, 0xF, 4, 13); |
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GSPREC(1, 6, 0xB, 0xC, 7, 5); |
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GSPREC(2, 7, 0x8, 0xD, 15, 14); |
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GSPREC(3, 4, 0x9, 0xE, 1, 9); |
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// { 12, 5, 1, 15, 14, 13, 4, 10, 0, 7, 6, 3, 9, 2, 8, 11 }, |
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GSPREC(0, 4, 0x8, 0xC, 12, 5); |
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GSPREC(1, 5, 0x9, 0xD, 1, 15); |
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GSPREC(2, 6, 0xA, 0xE, 14, 13); |
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GSPREC(3, 7, 0xB, 0xF, 4, 10); |
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GSPREC(0, 5, 0xA, 0xF, 0, 7); |
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GSPREC(1, 6, 0xB, 0xC, 6, 3); |
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GSPREC(2, 7, 0x8, 0xD, 9, 2); |
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GSPREC(3, 4, 0x9, 0xE, 8, 11); |
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// { 13, 11, 7, 14, 12, 1, 3, 9, 5, 0, 15, 4, 8, 6, 2, 10 }, |
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GSPREC(0, 4, 0x8, 0xC, 13, 11); |
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GSPREC(1, 5, 0x9, 0xD, 7, 14); |
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GSPREC(2, 6, 0xA, 0xE, 12, 1); |
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GSPREC(3, 7, 0xB, 0xF, 3, 9); |
|
GSPREC(0, 5, 0xA, 0xF, 5, 0); |
|
GSPREC(1, 6, 0xB, 0xC, 15, 4); |
|
GSPREC(2, 7, 0x8, 0xD, 8, 6); |
|
//GSPREC(3, 4, 0x9, 0xE, 2, 10); |
|
// { 6, 15, 14, 9, 11, 3, 0, 8, 12, 2, 13, 7, 1, 4, 10, 5 }, |
|
|
|
// only compute h6 & 7 |
|
//h[6] ^= v[6] ^ v[14]; |
|
//h[7] ^= v[7] ^ v[15]; |
|
|
|
if ((h[7]^v[7]^v[15]) == 0) // h7 |
|
{ |
|
GSPREC(3, 4, 0x9, 0xE, 2, 10); |
|
if (cuda_swab32(h[6]^v[6]^v[14]) <= highTarget) { |
|
#if NBN == 2 |
|
if (resNonce[0] != UINT32_MAX) |
|
resNonce[1] = nonce; |
|
else |
|
resNonce[0] = nonce; |
|
#else |
|
resNonce[0] = nonce; |
|
#endif |
|
} |
|
} |
|
} |
|
} |
|
|
|
__host__ |
|
static uint32_t blake256_cpu_hash_16(const int thr_id, const uint32_t threads, const uint32_t startNonce, const uint64_t highTarget, |
|
const int8_t rounds) |
|
{ |
|
uint32_t result = UINT32_MAX; |
|
|
|
dim3 grid((threads + TPB-1)/TPB); |
|
dim3 block(TPB); |
|
|
|
/* Check error on Ctrl+C or kill to prevent segfaults on exit */ |
|
if (cudaMemset(d_resNonce[thr_id], 0xff, NBN*sizeof(uint32_t)) != cudaSuccess) |
|
return result; |
|
|
|
if (rounds == 8) |
|
blake256_gpu_hash_16_8 <<<grid, block>>> (threads, startNonce, d_resNonce[thr_id], highTarget); |
|
else |
|
blake256_gpu_hash_16 <<<grid, block>>> (threads, startNonce, d_resNonce[thr_id], highTarget); |
|
|
|
if (cudaSuccess == cudaMemcpy(h_resNonce[thr_id], d_resNonce[thr_id], NBN*sizeof(uint32_t), cudaMemcpyDeviceToHost)) { |
|
result = h_resNonce[thr_id][0]; |
|
for (int n=0; n < (NBN-1); n++) |
|
extra_results[n] = h_resNonce[thr_id][n+1]; |
|
} |
|
return result; |
|
} |
|
|
|
__host__ |
|
static void blake256mid(uint32_t *output, const uint32_t *input, int8_t rounds = 14) |
|
{ |
|
sph_blake256_context ctx; |
|
|
|
sph_blake256_set_rounds(rounds); |
|
|
|
sph_blake256_init(&ctx); |
|
sph_blake256(&ctx, input, 64); |
|
|
|
memcpy(output, (void*)ctx.H, 32); |
|
} |
|
|
|
__host__ |
|
void blake256_cpu_setBlock_16(uint32_t *penddata, const uint32_t *midstate, const uint32_t *ptarget) |
|
{ |
|
uint32_t _ALIGN(64) data[11]; |
|
memcpy(data, midstate, 32); |
|
data[8] = penddata[0]; |
|
data[9] = penddata[1]; |
|
data[10]= penddata[2]; |
|
CUDA_SAFE_CALL(cudaMemcpyToSymbol(d_data, data, 32 + 12, 0, cudaMemcpyHostToDevice)); |
|
} |
|
|
|
static bool init[MAX_GPUS] = { 0 }; |
|
|
|
extern "C" int scanhash_blake256(int thr_id, struct work* work, uint32_t max_nonce, unsigned long *hashes_done, int8_t blakerounds=14) |
|
{ |
|
uint32_t _ALIGN(64) endiandata[20]; |
|
uint32_t _ALIGN(64) midstate[8]; |
|
|
|
uint32_t *pdata = work->data; |
|
uint32_t *ptarget = work->target; |
|
|
|
const uint32_t first_nonce = pdata[19]; |
|
uint64_t targetHigh = ((uint64_t*)ptarget)[3]; |
|
|
|
int dev_id = device_map[thr_id]; |
|
int intensity = (device_sm[dev_id] > 500 && !is_windows()) ? 30 : 26; |
|
if (device_sm[dev_id] < 350) intensity = 22; |
|
|
|
uint32_t throughput = cuda_default_throughput(thr_id, 1U << intensity); |
|
if (init[thr_id]) throughput = min(throughput, max_nonce - first_nonce); |
|
|
|
int rc = 0; |
|
|
|
if (opt_benchmark) { |
|
targetHigh = 0x1ULL << 32; |
|
ptarget[6] = swab32(0xff); |
|
} |
|
|
|
if (!init[thr_id]) |
|
{ |
|
cudaSetDevice(dev_id); |
|
if (opt_cudaschedule == -1 && gpu_threads == 1) { |
|
cudaDeviceReset(); |
|
// reduce cpu usage (linux) |
|
cudaSetDeviceFlags(cudaDeviceScheduleBlockingSync); |
|
cudaDeviceSetCacheConfig(cudaFuncCachePreferL1); |
|
CUDA_LOG_ERROR(); |
|
} |
|
gpulog(LOG_INFO, thr_id, "Intensity set to %g, %u cuda threads", throughput2intensity(throughput), throughput); |
|
|
|
CUDA_CALL_OR_RET_X(cudaMalloc(&d_resNonce[thr_id], NBN * sizeof(uint32_t)), -1); |
|
CUDA_CALL_OR_RET_X(cudaMallocHost(&h_resNonce[thr_id], NBN * sizeof(uint32_t)), -1); |
|
init[thr_id] = true; |
|
} |
|
|
|
for (int k = 0; k < 16; k++) |
|
be32enc(&endiandata[k], pdata[k]); |
|
|
|
blake256mid(midstate, endiandata, blakerounds); |
|
blake256_cpu_setBlock_16(&pdata[16], midstate, ptarget); |
|
|
|
do { |
|
// GPU HASH (second block only, first is midstate) |
|
uint32_t foundNonce = blake256_cpu_hash_16(thr_id, throughput, pdata[19], targetHigh, blakerounds); |
|
|
|
if (foundNonce != UINT32_MAX) |
|
{ |
|
uint32_t vhashcpu[8]; |
|
uint32_t Htarg = ptarget[6]; |
|
|
|
for (int k=16; k < 19; k++) |
|
be32enc(&endiandata[k], pdata[k]); |
|
|
|
be32enc(&endiandata[19], foundNonce); |
|
blake256hash(vhashcpu, endiandata, blakerounds); |
|
|
|
if (vhashcpu[6] <= Htarg && fulltest(vhashcpu, ptarget)) |
|
{ |
|
rc = 1; |
|
work_set_target_ratio(work, vhashcpu); |
|
*hashes_done = pdata[19] - first_nonce + throughput; |
|
pdata[19] = foundNonce; |
|
#if NBN > 1 |
|
if (extra_results[0] != UINT32_MAX) { |
|
be32enc(&endiandata[19], extra_results[0]); |
|
blake256hash(vhashcpu, endiandata, blakerounds); |
|
if (vhashcpu[6] <= Htarg && fulltest(vhashcpu, ptarget)) { |
|
pdata[21] = extra_results[0]; |
|
if (bn_hash_target_ratio(vhashcpu, ptarget) > work->shareratio) { |
|
work_set_target_ratio(work, vhashcpu); |
|
xchg(pdata[21], pdata[19]); |
|
} |
|
rc = 2; |
|
} |
|
extra_results[0] = UINT32_MAX; |
|
} |
|
#endif |
|
return rc; |
|
} |
|
else if (opt_debug) { |
|
applog_hash((uchar*)ptarget); |
|
applog_compare_hash((uchar*)vhashcpu, (uchar*)ptarget); |
|
gpulog(LOG_WARNING, thr_id, "result for %08x does not validate on CPU!", foundNonce); |
|
} |
|
} |
|
|
|
pdata[19] += throughput; |
|
|
|
} while (!work_restart[thr_id].restart && max_nonce > (uint64_t)throughput + pdata[19]); |
|
|
|
*hashes_done = pdata[19] - first_nonce; |
|
|
|
MyStreamSynchronize(NULL, 0, device_map[thr_id]); |
|
return rc; |
|
} |
|
|
|
// cleanup |
|
extern "C" void free_blake256(int thr_id) |
|
{ |
|
if (!init[thr_id]) |
|
return; |
|
|
|
cudaDeviceSynchronize(); |
|
|
|
cudaFreeHost(h_resNonce[thr_id]); |
|
cudaFree(d_resNonce[thr_id]); |
|
|
|
init[thr_id] = false; |
|
|
|
cudaDeviceSynchronize(); |
|
} |
|
|
|
|