invoke gost

algos.h

@@ -18,6 +18,7 @@ enum sha_algos {
 	ALGO_DMD_GR,
 	ALGO_FRESH,
 	ALGO_FUGUE256,		/* Fugue256 */
+	ALGO_GOST,
 	ALGO_GROESTL,
 	ALGO_HEAVY,		/* Heavycoin hash */
 	ALGO_HMQ1725,
@@ -78,6 +79,7 @@ static const char *algo_names[] = {
 	"dmd-gr",
 	"fresh",
 	"fugue256",
+	"gost",
 	"groestl",
 	"heavy",
 	"hmq1725",

ccminer.cpp

@@ -236,6 +236,7 @@ Options:\n\
 			dmd-gr      Diamond-Groestl\n\
 			fresh       Freshcoin (shavite 80)\n\
 			fugue256    Fuguecoin\n\
+			gost		GOST\n\
 			groestl     Groestlcoin\n\
 			heavy       Heavycoin\n\
 			hmq1725     Doubloons / Espers\n\
@@ -2323,6 +2324,9 @@ static void *miner_thread(void *userdata)
 		case ALGO_SIB:
 			rc = scanhash_sib(thr_id, &work, max_nonce, &hashes_done);
 			break;
+		case ALGO_GOST:
+			rc = scanhash_gost(thr_id, &work, max_nonce, &hashes_done);
+			break;
 		case ALGO_S3:
 			rc = scanhash_s3(thr_id, &work, max_nonce, &hashes_done);
 			break;

gost/gost.cu

@@ -32,3 +32,98 @@ extern "C" void gosthash(void *output, const void *input)
 	memcpy(output, hash, 32);
 }
 
+//#define _DEBUG
+#define _DEBUG_PREFIX "sib"
+#include "cuda_debug.cuh"
+
+static bool init[MAX_GPUS] = { 0 };
+
+extern "C" int scanhash_gost(int thr_id, struct work* work, uint32_t max_nonce, unsigned long *hashes_done)
+{
+	uint32_t *pdata = work->data;
+	uint32_t *ptarget = work->target;
+	const uint32_t first_nonce = pdata[19];
+	const int dev_id = device_map[thr_id];
+	int intensity = (device_sm[dev_id] >= 500 && !is_windows()) ? 19 : 18; // 2^18 = 262144 cuda threads
+	if (device_sm[dev_id] >= 600) intensity = 20;
+	uint32_t throughput = cuda_default_throughput(thr_id, 1U << intensity);
+	if (init[thr_id]) throughput = min(throughput, max_nonce - first_nonce);
+
+	if (opt_benchmark)
+		ptarget[7] = 0xf;
+
+	if (!init[thr_id])
+	{
+		cudaSetDevice(device_map[thr_id]);
+		if (opt_cudaschedule == -1 && gpu_threads == 1) {
+			cudaDeviceReset();
+			// reduce cpu usage
+			cudaSetDeviceFlags(cudaDeviceScheduleBlockingSync);
+			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_hash[thr_id], (size_t) 64 * throughput), -1);
+
+		cuda_check_cpu_init(thr_id, throughput);
+
+		init[thr_id] = true;
+	}
+
+	uint32_t endiandata[20];
+	for (int k=0; k < 20; k++)
+		be32enc(&endiandata[k], pdata[k]);
+
+	do {
+		int order = 0;
+
+		// Hash with CUDA
+		//streebog_cpu_hash_64(thr_id, throughput, d_hash[thr_id]);
+		//TRACE("gost   :");
+
+		work->nonces[0] = cuda_check_hash(thr_id, throughput, pdata[19], d_hash[thr_id]);
+		if (work->nonces[0] != UINT32_MAX)
+		{
+			const uint32_t Htarg = ptarget[7];
+			uint32_t _ALIGN(64) vhash[8];
+			be32enc(&endiandata[19], work->nonces[0]);
+			sibhash(vhash, endiandata);
+
+			if (vhash[7] <= Htarg && fulltest(vhash, ptarget)) {
+				work->valid_nonces = 1;
+				work_set_target_ratio(work, vhash);
+				work->nonces[1] =cuda_check_hash_suppl(thr_id, throughput, pdata[19], d_hash[thr_id], 1);
+				*hashes_done = pdata[19] - first_nonce + throughput;
+				if (work->nonces[1] != 0) {
+					be32enc(&endiandata[19], work->nonces[1]);
+					sibhash(vhash, endiandata);
+					bn_set_target_ratio(work, vhash, 1);
+					work->valid_nonces++;
+					pdata[19] = max(work->nonces[0], work->nonces[1]) + 1;
+				} else {
+					pdata[19] = work->nonces[0] + 1; // cursor
+				}
+				return work->valid_nonces;
+			}
+			else if (vhash[7] > Htarg) {
+				gpu_increment_reject(thr_id);
+				if (!opt_quiet)
+					gpulog(LOG_WARNING, thr_id, "result for %08x does not validate on CPU!", work->nonces[0]);
+				pdata[19] = work->nonces[0] + 1;
+				continue;
+			}
+		}
+
+		if ((uint64_t) throughput + pdata[19] >= max_nonce) {
+			pdata[19] = max_nonce;
+			break;
+		}
+		pdata[19] += throughput;
+
+	} while (!work_restart[thr_id].restart);
+
+	*hashes_done = pdata[19] - first_nonce;
+
+	return 0;
+}
+

miner.h

@@ -304,6 +304,7 @@ extern int scanhash_sha256d(int thr_id, struct work *work, uint32_t max_nonce, u
 extern int scanhash_sha256t(int thr_id, struct work *work, uint32_t max_nonce, unsigned long *hashes_done);
 extern int scanhash_sia(int thr_id, struct work *work, uint32_t max_nonce, unsigned long *hashes_done);
 extern int scanhash_sib(int thr_id, struct work* work, uint32_t max_nonce, unsigned long *hashes_done);
+extern int scanhash_gost(int thr_id, struct work* work, uint32_t max_nonce, unsigned long *hashes_done);
 extern int scanhash_skeincoin(int thr_id, struct work* work, uint32_t max_nonce, unsigned long *hashes_done);
 extern int scanhash_skein2(int thr_id, struct work* work, uint32_t max_nonce, unsigned long *hashes_done);
 extern int scanhash_s3(int thr_id, struct work* work, uint32_t max_nonce, unsigned long *hashes_done);