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469 lines
14 KiB
469 lines
14 KiB
/** |
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* Blake-256 Decred 180-Bytes input Cuda Kernel (Tested on SM 5/5.2) |
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* |
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* Tanguy Pruvot - Feb 2016 |
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* |
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* Revised for optimisation by pallas @ bitcointalk - Apr 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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/* nonces per round */ |
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#define NPR 128 |
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/* hash by cpu with blake 256 */ |
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extern "C" void decred_hash(void *output, const void *input) |
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{ |
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sph_blake256_context ctx; |
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sph_blake256_set_rounds(14); |
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sph_blake256_init(&ctx); |
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sph_blake256(&ctx, input, 180); |
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sph_blake256_close(&ctx, output); |
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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(4) d_data[24]; |
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/* 16 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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#if NBN > 1 |
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static uint32_t extra_results[NBN] = { UINT32_MAX }; |
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#endif |
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/* ############################################################################################################################### */ |
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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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#define GSPREC4(a0,b0,c0,d0,x0,y0,a1,b1,c1,d1,x1,y1,a2,b2,c2,d2,x2,y2,a3,b3,c3,d3,x3,y3) { \ |
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v[a0] += (m[x0] ^ c_u256[y0]) + v[b0]; \ |
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v[a1] += (m[x1] ^ c_u256[y1]) + v[b1]; \ |
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v[a2] += (m[x2] ^ c_u256[y2]) + v[b2]; \ |
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v[a3] += (m[x3] ^ c_u256[y3]) + v[b3]; \ |
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v[d0] = __byte_perm(v[d0] ^ v[a0], 0, 0x1032); \ |
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v[d1] = __byte_perm(v[d1] ^ v[a1], 0, 0x1032); \ |
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v[d2] = __byte_perm(v[d2] ^ v[a2], 0, 0x1032); \ |
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v[d3] = __byte_perm(v[d3] ^ v[a3], 0, 0x1032); \ |
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v[c0] += v[d0]; \ |
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v[c1] += v[d1]; \ |
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v[c2] += v[d2]; \ |
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v[c3] += v[d3]; \ |
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v[b0] = SPH_ROTR32(v[b0] ^ v[c0], 12); \ |
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v[b1] = SPH_ROTR32(v[b1] ^ v[c1], 12); \ |
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v[b2] = SPH_ROTR32(v[b2] ^ v[c2], 12); \ |
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v[b3] = SPH_ROTR32(v[b3] ^ v[c3], 12); \ |
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v[a0] += (m[y0] ^ c_u256[x0]) + v[b0]; \ |
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v[a1] += (m[y1] ^ c_u256[x1]) + v[b1]; \ |
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v[a2] += (m[y2] ^ c_u256[x2]) + v[b2]; \ |
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v[a3] += (m[y3] ^ c_u256[x3]) + v[b3]; \ |
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v[d0] = __byte_perm(v[d0] ^ v[a0], 0, 0x0321); \ |
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v[d1] = __byte_perm(v[d1] ^ v[a1], 0, 0x0321); \ |
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v[d2] = __byte_perm(v[d2] ^ v[a2], 0, 0x0321); \ |
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v[d3] = __byte_perm(v[d3] ^ v[a3], 0, 0x0321); \ |
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v[c0] += v[d0]; \ |
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v[c1] += v[d1]; \ |
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v[c2] += v[d2]; \ |
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v[c3] += v[d3]; \ |
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v[b0] = SPH_ROTR32(v[b0] ^ v[c0], 7); \ |
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v[b1] = SPH_ROTR32(v[b1] ^ v[c1], 7); \ |
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v[b2] = SPH_ROTR32(v[b2] ^ v[c2], 7); \ |
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v[b3] = SPH_ROTR32(v[b3] ^ v[c3], 7); \ |
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} |
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static const __constant__ 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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__device__ __forceinline__ |
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uint32_t blake256_compress_14(uint32_t *m, uint32_t *v_init, uint32_t d_data6, uint32_t d_data7) |
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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 < 16; i++) v[i] = v_init[i]; |
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// these two are not modified: |
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v[ 9] = 0x85A308D3; |
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v[13] = 0x299F31D0 ^ (180U*8U); |
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// round 1 with nonce |
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GSPREC(1, 5, 0x9, 0xD, 2, 3); |
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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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// round 2 |
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GSPREC4(0, 4, 0x8, 0xC, 14, 10, 1, 5, 0x9, 0xD, 4, 8, 2, 6, 0xA, 0xE, 9, 15, 3, 7, 0xB, 0xF, 13, 6); |
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GSPREC4(0, 5, 0xA, 0xF, 1, 12, 1, 6, 0xB, 0xC, 0, 2, 2, 7, 0x8, 0xD, 11, 7, 3, 4, 0x9, 0xE, 5, 3); |
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// round 3 |
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GSPREC4(0, 4, 0x8, 0xC, 11, 8, 1, 5, 0x9, 0xD, 12, 0, 2, 6, 0xA, 0xE, 5, 2, 3, 7, 0xB, 0xF, 15, 13); |
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GSPREC4(0, 5, 0xA, 0xF, 10, 14, 1, 6, 0xB, 0xC, 3, 6, 2, 7, 0x8, 0xD, 7, 1, 3, 4, 0x9, 0xE, 9, 4); |
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// round 4 |
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GSPREC4(0, 4, 0x8, 0xC, 7, 9, 1, 5, 0x9, 0xD, 3, 1, 2, 6, 0xA, 0xE, 13, 12, 3, 7, 0xB, 0xF, 11, 14); |
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GSPREC4(0, 5, 0xA, 0xF, 2, 6, 1, 6, 0xB, 0xC, 5, 10, 2, 7, 0x8, 0xD, 4, 0, 3, 4, 0x9, 0xE, 15, 8); |
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// round 5 |
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GSPREC4(0, 4, 0x8, 0xC, 9, 0, 1, 5, 0x9, 0xD, 5, 7, 2, 6, 0xA, 0xE, 2, 4, 3, 7, 0xB, 0xF, 10, 15); |
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GSPREC4(0, 5, 0xA, 0xF, 14, 1, 1, 6, 0xB, 0xC, 11, 12, 2, 7, 0x8, 0xD, 6, 8, 3, 4, 0x9, 0xE, 3, 13); |
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// round 6 |
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GSPREC4(0, 4, 0x8, 0xC, 2, 12, 1, 5, 0x9, 0xD, 6, 10, 2, 6, 0xA, 0xE, 0, 11, 3, 7, 0xB, 0xF, 8, 3); |
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GSPREC4(0, 5, 0xA, 0xF, 4, 13, 1, 6, 0xB, 0xC, 7, 5, 2, 7, 0x8, 0xD, 15,14, 3, 4, 0x9, 0xE, 1, 9); |
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// round 7 |
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GSPREC4(0, 4, 0x8, 0xC, 12, 5, 1, 5, 0x9, 0xD, 1, 15, 2, 6, 0xA, 0xE, 14,13, 3, 7, 0xB, 0xF, 4, 10); |
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GSPREC4(0, 5, 0xA, 0xF, 0, 7, 1, 6, 0xB, 0xC, 6, 3, 2, 7, 0x8, 0xD, 9, 2, 3, 4, 0x9, 0xE, 8, 11); |
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#ifdef FULL_4WAY |
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// round 8 |
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GSPREC4(0, 4, 0x8, 0xC, 13,11, 1, 5, 0x9, 0xD, 7, 14, 2, 6, 0xA, 0xE, 12, 1, 3, 7, 0xB, 0xF, 3, 9); |
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GSPREC4(0, 5, 0xA, 0xF, 5, 0, 1, 6, 0xB, 0xC, 15, 4, 2, 7, 0x8, 0xD, 8, 6, 3, 4, 0x9, 0xE, 2, 10); |
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// round 9 |
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GSPREC4(0, 4, 0x8, 0xC, 6, 15, 1, 5, 0x9, 0xD, 14, 9, 2, 6, 0xA, 0xE, 11, 3, 3, 7, 0xB, 0xF, 0, 8); |
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GSPREC4(0, 5, 0xA, 0xF, 12, 2, 1, 6, 0xB, 0xC, 13, 7, 2, 7, 0x8, 0xD, 1, 4, 3, 4, 0x9, 0xE, 10, 5); |
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// round 10 |
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GSPREC4(0, 4, 0x8, 0xC, 10, 2, 1, 5, 0x9, 0xD, 8, 4, 2, 6, 0xA, 0xE, 7, 6, 3, 7, 0xB, 0xF, 1, 5); |
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GSPREC4(0, 5, 0xA, 0xF, 15,11, 1, 6, 0xB, 0xC, 9, 14, 2, 7, 0x8, 0xD, 3, 12, 3, 4, 0x9, 0xE, 13, 0); |
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// round 11 |
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GSPREC4(0, 4, 0x8, 0xC, 0, 1, 1, 5, 0x9, 0xD, 2, 3, 2, 6, 0xA, 0xE, 4, 5, 3, 7, 0xB, 0xF, 6, 7); |
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GSPREC4(0, 5, 0xA, 0xF, 8, 9, 1, 6, 0xB, 0xC, 10,11, 2, 7, 0x8, 0xD, 12,13, 3, 4, 0x9, 0xE, 14,15); |
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// round 12 |
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GSPREC4(0, 4, 0x8, 0xC, 14,10, 1, 5, 0x9, 0xD, 4, 8, 2, 6, 0xA, 0xE, 9, 15, 3, 7, 0xB, 0xF, 13, 6); |
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GSPREC4(0, 5, 0xA, 0xF, 1, 12, 1, 6, 0xB, 0xC, 0, 2, 2, 7, 0x8, 0xD, 11, 7, 3, 4, 0x9, 0xE, 5, 3); |
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// round 13 |
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GSPREC4(0, 4, 0x8, 0xC, 11, 8, 1, 5, 0x9, 0xD, 12, 0, 2, 6, 0xA, 0xE, 5, 2, 3, 7, 0xB, 0xF, 15,13); |
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GSPREC4(0, 5, 0xA, 0xF, 10,14, 1, 6, 0xB, 0xC, 3, 6, 2, 7, 0x8, 0xD, 7, 1, 3, 4, 0x9, 0xE, 9, 4); |
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#else |
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// round 8 |
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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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// round 9 |
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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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// round 10 |
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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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// round 11 |
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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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// round 12 |
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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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// round 13 |
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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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#endif |
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// round 14 |
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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(2, 7, 0x8, 0xD, 4, 0); |
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if ((d_data7 ^ v[7] ^ v[15]) == 0) { |
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GSPREC(1, 6, 0xB, 0xC, 5, 10); |
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GSPREC(3, 4, 0x9, 0xE, 15, 8); |
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return (d_data6 ^ v[6] ^ v[14]); |
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} |
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return UINT32_MAX; |
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} |
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/* ############################################################################################################################### */ |
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// ------ Close: Last 52/64 bytes ------ |
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__global__ |
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void blake256_gpu_hash_nonce(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 * NPR; |
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uint32_t m[16], v[16], temp; |
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const uint32_t d_data6 = d_data[6], d_data7 = d_data[7]; |
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#pragma unroll |
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for(int i = 0; i < 8; i++) v[i] = d_data[i]; |
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#pragma unroll |
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for (uint32_t i = 0; i < 16; i++) m[i] = d_data[i+8U]; |
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v[ 8] = 0x243F6A88; |
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v[ 9] = 0x85A308D3; |
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v[10] = 0x13198A2E; |
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v[11] = 0x03707344; |
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v[12] = 0xA4093822 ^ (180U*8U); |
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v[13] = 0x299F31D0 ^ (180U*8U); |
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v[14] = 0x082EFA98; |
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v[15] = 0xEC4E6C89; |
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// round 1 without nonce |
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GSPREC(0, 4, 0x8, 0xC, 0, 1); |
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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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for (m[3] = nonce; m[3] < nonce + NPR; m[3]++) { |
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temp = blake256_compress_14(m, v, d_data6, d_data7); |
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if (temp != UINT32_MAX && cuda_swab32(temp) <= highTarget) { |
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#if NBN == 2 |
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if (resNonce[0] != UINT32_MAX) resNonce[1] = m[3]; |
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else resNonce[0] = m[3]; |
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#else |
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resNonce[0] = m[3]; |
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#endif |
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// from alexis78: |
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// return statement allows CUDA7.5 to : |
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// 1. Store the values fetched from constant memory in registers. |
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// 2. Perform more precomputations on the outside of the for loop. |
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// 3. Stop the continuous fetches from the constant memory while iterating |
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return; |
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} |
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} |
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} |
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} |
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__host__ |
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static uint32_t decred_cpu_hash_nonce(const int thr_id, const uint32_t threads, const uint32_t startNonce, const uint64_t highTarget) |
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{ |
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uint32_t result = UINT32_MAX; |
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const uint32_t real_threads = threads / NPR; |
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dim3 grid((real_threads + TPB-1)/TPB); |
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dim3 block(TPB); |
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/* Check error on Ctrl+C or kill to prevent segfaults on exit */ |
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if (cudaMemset(d_resNonce[thr_id], 0xff, NBN*sizeof(uint32_t)) != cudaSuccess) |
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return result; |
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blake256_gpu_hash_nonce <<<grid, block>>> (real_threads, startNonce, d_resNonce[thr_id], highTarget); |
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cudaThreadSynchronize(); |
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if (cudaSuccess == cudaMemcpy(h_resNonce[thr_id], d_resNonce[thr_id], NBN*sizeof(uint32_t), cudaMemcpyDeviceToHost)) { |
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result = h_resNonce[thr_id][0]; |
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#if NBN > 1 |
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for (int n=0; n < (NBN-1); n++) |
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extra_results[n] = h_resNonce[thr_id][n+1]; |
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#endif |
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} |
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return result; |
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} |
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__host__ |
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static void decred_midstate_128(uint32_t *output, const uint32_t *input) |
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{ |
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sph_blake256_context ctx; |
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sph_blake256_set_rounds(14); |
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sph_blake256_init(&ctx); |
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sph_blake256(&ctx, input, 128); |
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memcpy(output, (void*)ctx.H, 32); |
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} |
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__host__ |
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void decred_cpu_setBlock_52(uint32_t *penddata, const uint32_t *midstate, const uint32_t *ptarget) |
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{ |
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uint32_t _ALIGN(64) data[24]; |
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memcpy(data, midstate, 32); |
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// pre swab32 |
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for (int i=0; i<13; i++) |
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data[8+i] = swab32(penddata[i]); |
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data[21] = 0x80000001; |
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data[22] = 0; |
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data[23] = 0x000005a0; |
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CUDA_SAFE_CALL(cudaMemcpyToSymbol(d_data, data, 32 + 64, 0, cudaMemcpyHostToDevice)); |
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} |
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/* ############################################################################################################################### */ |
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static bool init[MAX_GPUS] = { 0 }; |
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// nonce position is different in decred |
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#define DCR_NONCE_OFT32 35 |
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extern "C" int scanhash_decred(int thr_id, struct work* work, uint32_t max_nonce, unsigned long *hashes_done) |
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{ |
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uint32_t _ALIGN(64) endiandata[48]; |
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uint32_t _ALIGN(64) midstate[8]; |
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uint32_t *pdata = work->data; |
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uint32_t *ptarget = work->target; |
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uint32_t *pnonce = &pdata[DCR_NONCE_OFT32]; |
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const uint32_t first_nonce = *pnonce; |
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uint64_t targetHigh = ((uint64_t*)ptarget)[3]; |
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int dev_id = device_map[thr_id]; |
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int intensity = (device_sm[dev_id] > 500 && !is_windows()) ? 29 : 25; |
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if (device_sm[dev_id] < 350) intensity = 22; |
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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(); |
|
} |
|
|
|
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; |
|
} |
|
|
|
memcpy(endiandata, pdata, 180); |
|
decred_midstate_128(midstate, endiandata); |
|
decred_cpu_setBlock_52(&pdata[32], midstate, ptarget); |
|
|
|
do { |
|
// GPU HASH |
|
uint32_t foundNonce = decred_cpu_hash_nonce(thr_id, throughput, (*pnonce), targetHigh); |
|
|
|
if (foundNonce != UINT32_MAX) |
|
{ |
|
uint32_t vhashcpu[8]; |
|
uint32_t Htarg = ptarget[6]; |
|
|
|
be32enc(&endiandata[DCR_NONCE_OFT32], foundNonce); |
|
decred_hash(vhashcpu, endiandata); |
|
|
|
if (vhashcpu[6] <= Htarg && fulltest(vhashcpu, ptarget)) |
|
{ |
|
rc = 1; |
|
work_set_target_ratio(work, vhashcpu); |
|
*hashes_done = (*pnonce) - first_nonce + throughput; |
|
work->nonces[0] = swab32(foundNonce); |
|
#if NBN > 1 |
|
if (extra_results[0] != UINT32_MAX) { |
|
be32enc(&endiandata[DCR_NONCE_OFT32], extra_results[0]); |
|
decred_hash(vhashcpu, endiandata); |
|
if (vhashcpu[6] <= Htarg && fulltest(vhashcpu, ptarget)) { |
|
work->nonces[1] = swab32(extra_results[0]); |
|
if (bn_hash_target_ratio(vhashcpu, ptarget) > work->shareratio) { |
|
work_set_target_ratio(work, vhashcpu); |
|
xchg(work->nonces[1], work->nonces[0]); |
|
} |
|
rc = 2; |
|
} |
|
extra_results[0] = UINT32_MAX; |
|
} |
|
#endif |
|
*pnonce = work->nonces[0]; |
|
return rc; |
|
} |
|
else if (opt_debug) { |
|
applog_hash(ptarget); |
|
applog_compare_hash(vhashcpu, ptarget); |
|
gpulog(LOG_WARNING, thr_id, "result for %08x does not validate on CPU!", foundNonce); |
|
} |
|
} |
|
|
|
*pnonce += throughput; |
|
|
|
} while (!work_restart[thr_id].restart && max_nonce > (uint64_t)throughput + (*pnonce)); |
|
|
|
*hashes_done = (*pnonce) - first_nonce; |
|
return rc; |
|
} |
|
|
|
|
|
// cleanup |
|
extern "C" void free_decred(int thr_id) |
|
{ |
|
if (!init[thr_id]) |
|
return; |
|
|
|
cudaDeviceSynchronize(); |
|
|
|
cudaFreeHost(h_resNonce[thr_id]); |
|
cudaFree(d_resNonce[thr_id]); |
|
|
|
init[thr_id] = false; |
|
|
|
cudaDeviceSynchronize(); |
|
}
|
|
|