mirror of
https://github.com/GOSTSec/ccminer
synced 2025-01-09 06:18:07 +00:00
148 lines
3.8 KiB
Plaintext
148 lines
3.8 KiB
Plaintext
/**
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* Penta Blake
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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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/* hash by cpu with blake 256 */
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extern "C" void pentablakehash(void *output, const void *input)
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{
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unsigned char _ALIGN(128) hash[64];
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sph_blake512_context ctx;
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sph_blake512_init(&ctx);
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sph_blake512(&ctx, input, 80);
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sph_blake512_close(&ctx, hash);
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sph_blake512(&ctx, hash, 64);
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sph_blake512_close(&ctx, hash);
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sph_blake512(&ctx, hash, 64);
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sph_blake512_close(&ctx, hash);
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sph_blake512(&ctx, hash, 64);
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sph_blake512_close(&ctx, hash);
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sph_blake512(&ctx, hash, 64);
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sph_blake512_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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static uint32_t *d_hash[MAX_GPUS];
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extern void quark_blake512_cpu_init(int thr_id, uint32_t threads);
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extern void quark_blake512_cpu_free(int thr_id);
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extern void quark_blake512_cpu_setBlock_80(int thr_id, uint32_t *pdata);
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extern void quark_blake512_cpu_hash_80(int thr_id, uint32_t threads, uint32_t startNounce, uint32_t *d_hash);
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extern void quark_blake512_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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static bool init[MAX_GPUS] = { 0 };
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extern "C" int scanhash_pentablake(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[20];
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uint32_t *pdata = work->data;
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uint32_t *ptarget = work->target;
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const uint32_t first_nonce = pdata[19];
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int rc = 0;
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uint32_t throughput = cuda_default_throughput(thr_id, 1U << 19);
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if (init[thr_id]) throughput = min(throughput, max_nonce - first_nonce);
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if (opt_benchmark)
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ptarget[7] = 0x000F;
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if (!init[thr_id]) {
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cudaSetDevice(device_map[thr_id]);
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if (opt_cudaschedule == -1 && gpu_threads == 1) {
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cudaDeviceReset();
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// reduce cpu usage
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cudaSetDeviceFlags(cudaDeviceScheduleBlockingSync);
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CUDA_LOG_ERROR();
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}
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gpulog(LOG_INFO, thr_id, "Intensity set to %g, %u cuda threads", throughput2intensity(throughput), throughput);
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CUDA_SAFE_CALL(cudaMalloc(&d_hash[thr_id], (size_t) 64 * throughput));
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quark_blake512_cpu_init(thr_id, throughput);
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cuda_check_cpu_init(thr_id, throughput);
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CUDA_LOG_ERROR();
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init[thr_id] = true;
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}
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for (int k=0; k < 20; k++)
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be32enc(&endiandata[k], pdata[k]);
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quark_blake512_cpu_setBlock_80(thr_id, 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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// GPU HASH
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quark_blake512_cpu_hash_80(thr_id, throughput, pdata[19], d_hash[thr_id]); order++;
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quark_blake512_cpu_hash_64(thr_id, throughput, pdata[19], NULL, d_hash[thr_id], order++);
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quark_blake512_cpu_hash_64(thr_id, throughput, pdata[19], NULL, d_hash[thr_id], order++);
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quark_blake512_cpu_hash_64(thr_id, throughput, pdata[19], NULL, d_hash[thr_id], order++);
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quark_blake512_cpu_hash_64(thr_id, throughput, pdata[19], NULL, d_hash[thr_id], order++);
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*hashes_done = pdata[19] - first_nonce + throughput;
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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 vhash[8];
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be32enc(&endiandata[19], foundNonce);
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pentablakehash(vhash, endiandata);
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if (vhash[7] <= ptarget[7] && fulltest(vhash, ptarget)) {
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rc = 1;
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work_set_target_ratio(work, vhash);
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pdata[19] = foundNonce;
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return rc;
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} else {
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gpulog(LOG_WARNING, thr_id, "result for %08x does not validate on CPU!", foundNonce);
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}
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}
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if ((uint64_t) throughput + pdata[19] >= 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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return rc;
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}
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// cleanup
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void free_pentablake(int thr_id)
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{
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if (!init[thr_id])
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return;
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cudaThreadSynchronize();
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cudaFree(d_hash[thr_id]);
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quark_blake512_cpu_free(thr_id);
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cuda_check_cpu_free(thr_id);
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cudaDeviceSynchronize();
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init[thr_id] = false;
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}
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