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Also known as Double Skein Signed-off-by: Tanguy Pruvot <tanguy.pruvot@gmail.com>master
Tanguy Pruvot
10 years ago
11 changed files with 173 additions and 8 deletions
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@@ -0,0 +1,122 @@
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extern "C" { |
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#include "sph/sph_skein.h" |
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} |
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#include "miner.h" |
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#include "cuda_helper.h" |
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static uint32_t *d_hash[MAX_GPUS]; |
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extern void skein512_cpu_setBlock_80(void *pdata); |
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extern void skein512_cpu_hash_80(int thr_id, uint32_t threads, uint32_t startNounce, uint32_t *d_hash, int order); |
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extern void quark_skein512_cpu_hash_64(int thr_id, uint32_t threads, uint32_t startNounce, uint32_t *d_nonceVector, uint32_t *d_hash, int order); |
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extern "C" void skein2hash(void *output, const void *input) |
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{ |
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sph_skein512_context ctx_skein; |
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uint32_t hash[16]; |
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sph_skein512_init(&ctx_skein); |
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sph_skein512(&ctx_skein, input, 80); |
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sph_skein512_close(&ctx_skein, hash); |
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//applog_hash((uchar*)hash); |
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//applog_hash((uchar*)&hash[8]); |
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sph_skein512_init(&ctx_skein); |
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sph_skein512(&ctx_skein, hash, 64); |
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sph_skein512_close(&ctx_skein, hash); |
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memcpy(output, hash, 32); |
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} |
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#ifdef _DEBUG |
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#define TRACE(algo) { \ |
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if (max_nonce == 1 && pdata[19] <= 1) { \ |
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uint32_t* debugbuf = NULL; \ |
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cudaMallocHost(&debugbuf, 16*sizeof(uint32_t)); \ |
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cudaMemcpy(debugbuf, d_hash[thr_id], 16*sizeof(uint32_t), cudaMemcpyDeviceToHost); \ |
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printf("SK2 %s %08x %08x %08x %08x...\n", algo, \ |
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swab32(debugbuf[0]), swab32(debugbuf[1]), swab32(debugbuf[2]), swab32(debugbuf[3])); \ |
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cudaFree(debugbuf); \ |
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} \ |
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} |
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#else |
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#define TRACE(algo) {} |
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#endif |
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static bool init[MAX_GPUS] = { 0 }; |
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extern "C" int scanhash_skein2(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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uint32_t throughput = device_intensity(thr_id, __func__, 1 << 19); // 256*256*8 |
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throughput = min(throughput, (max_nonce - first_nonce)); |
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if (opt_benchmark) |
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((uint32_t*)ptarget)[7] = 0x0FFF; |
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if (!init[thr_id]) |
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{ |
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cudaDeviceReset(); |
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cudaSetDevice(device_map[thr_id]); |
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CUDA_SAFE_CALL(cudaMalloc(&d_hash[thr_id], 64 * throughput)); |
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cuda_check_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], pdata[k]); |
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skein512_cpu_setBlock_80((void*)endiandata); |
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cuda_check_cpu_setTarget(ptarget); |
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do { |
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int order = 0; |
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// Hash with CUDA |
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skein512_cpu_hash_80(thr_id, throughput, pdata[19], d_hash[thr_id], order++); |
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TRACE("80:"); |
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quark_skein512_cpu_hash_64(thr_id, throughput, pdata[19], NULL, d_hash[thr_id], order++); |
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TRACE("64:"); |
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uint32_t foundNonce = cuda_check_hash(thr_id, throughput, pdata[19], d_hash[thr_id]); |
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if (foundNonce != UINT32_MAX) |
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{ |
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uint32_t vhash64[8]; |
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endiandata[19] = foundNonce; |
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skein2hash(vhash64, endiandata); |
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#define Htarg ptarget[7] |
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if (vhash64[7] <= Htarg && fulltest(vhash64, ptarget)) { |
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int res = 1; |
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uint32_t secNonce = cuda_check_hash_suppl(thr_id, throughput, pdata[19], d_hash[thr_id], 1); |
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*hashes_done = pdata[19] - first_nonce + throughput; |
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if (secNonce != 0) { |
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if (!opt_quiet) |
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applog(LOG_BLUE, "GPU #%d: found second nonce %08x !", device_map[thr_id], swab32(secNonce)); |
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pdata[21] = swab32(secNonce); |
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res++; |
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} |
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pdata[19] = swab32(foundNonce); |
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return res; |
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} |
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else { |
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applog(LOG_INFO, "GPU #%d: result for nonce $%08X does not validate on CPU!", device_map[thr_id], foundNonce); |
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} |
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} |
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pdata[19] += throughput; |
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} while (pdata[19] < max_nonce && !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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