bastion algo

Signed-off-by: Tanguy Pruvot <tanguy.pruvot@gmail.com>

Makefile.am

@@ -28,6 +28,7 @@ ccminer_SOURCES	= elist.h miner.h compat.h \
 			  heavy/cuda_hefty1.cu heavy/cuda_hefty1.h \
 			  heavy/cuda_keccak512.cu heavy/cuda_keccak512.h \
 			  heavy/cuda_sha256.cu heavy/cuda_sha256.h \
+			  heavy/bastion.cu heavy/cuda_bastion.cu \
 			  fuguecoin.cpp Algo256/cuda_fugue256.cu sph/fugue.c uint256.h \
 			  groestlcoin.cpp cuda_groestlcoin.cu cuda_groestlcoin.h \
 			  myriadgroestl.cpp cuda_myriadgroestl.cu \

algos.h

@@ -9,6 +9,7 @@ enum sha_algos {
 	ALGO_BLAKE,
 	ALGO_BLAKE2S,
 	ALGO_BMW,
+	ALGO_BASTION,
 	ALGO_C11,
 	ALGO_CRYPTOLIGHT,
 	ALGO_CRYPTONIGHT,
@@ -66,6 +67,7 @@ static const char *algo_names[] = {
 	"blake",
 	"blake2s",
 	"bmw",
+	"bastion",
 	"c11",
 	"cryptolight",
 	"cryptonight",

bench.cpp

@@ -44,6 +44,7 @@ void bench_free()
 void algo_free_all(int thr_id)
 {
 	// only initialized algos will be freed
+	free_bastion(thr_id);
 	free_blake256(thr_id);
 	free_blake2s(thr_id);
 	free_bmw(thr_id);

ccminer.cpp

@@ -223,6 +223,7 @@ static char const usage[] = "\
 Usage: " PROGRAM_NAME " [OPTIONS]\n\
 Options:\n\
   -a, --algo=ALGO       specify the hash algorithm to use\n\
+			bastion     Hefty bastion\n\
 			blake       Blake 256 (SFR)\n\
 			blake2s     Blake2-S 256 (NEVA)\n\
 			blakecoin   Fast Blake 256 (8 rounds)\n\
@@ -2196,6 +2197,9 @@ static void *miner_thread(void *userdata)
 		/* scan nonces for a proof-of-work hash */
 		switch (opt_algo) {
 
+		case ALGO_BASTION:
+			rc = scanhash_bastion(thr_id, &work, max_nonce, &hashes_done);
+			break;
 		case ALGO_BLAKECOIN:
 			rc = scanhash_blake256(thr_id, &work, max_nonce, &hashes_done, 8);
 			break;

ccminer.vcxproj

@@ -435,6 +435,8 @@
     </CudaCompile>
     <CudaCompile Include="heavy\heavy.cu">
     </CudaCompile>
+    <CudaCompile Include="heavy\bastion.cu" />
+    <CudaCompile Include="heavy\cuda_bastion.cu" />
     <CudaCompile Include="JHA\cuda_jha_compactionTest.cu">
       <AdditionalOptions Condition="'$(Configuration)'=='Release'">-Xptxas "-abi=yes" %(AdditionalOptions)</AdditionalOptions>
       <AdditionalOptions Condition="'$(Configuration)'=='Debug'">-Xptxas "-abi=yes" %(AdditionalOptions)</AdditionalOptions>

ccminer.vcxproj.filters

@@ -619,6 +619,12 @@
     <CudaCompile Include="heavy\heavy.cu">
       <Filter>Source Files\CUDA\heavy</Filter>
     </CudaCompile>
+    <CudaCompile Include="heavy\bastion.cu">
+      <Filter>Source Files\CUDA\heavy</Filter>
+    </CudaCompile>
+    <CudaCompile Include="heavy\cuda_bastion.cu">
+      <Filter>Source Files\CUDA\heavy</Filter>
+    </CudaCompile>
     <CudaCompile Include="quark\cuda_bmw512.cu">
       <Filter>Source Files\CUDA\quark</Filter>
     </CudaCompile>

heavy/bastion.cu

@@ -0,0 +1,331 @@
+/**
+ * bastion cuda implemention tpruvot@github 2017
+ */
+
+#include <stdio.h>
+#include <string.h>
+//#include <openssl/sha.h>
+#include <stdint.h>
+#include <miner.h>
+#include <cuda_helper.h>
+
+static uint32_t *d_hash[MAX_GPUS];
+static uint32_t* d_hash_br1[MAX_GPUS];
+static uint32_t* d_hash_br2[MAX_GPUS];
+
+extern void quark_skein512_cpu_init(int thr_id, uint32_t threads);
+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);
+
+extern void x11_luffa512_cpu_init(int thr_id, uint32_t threads);
+extern void x11_luffa512_cpu_hash_64(int thr_id, uint32_t threads, uint32_t startNounce, uint32_t *d_nonceVector, uint32_t *d_hash, int order);
+
+extern void x13_hamsi512_cpu_init(int thr_id, uint32_t threads);
+extern void x13_hamsi512_cpu_hash_64(int thr_id, uint32_t threads, uint32_t startNounce, uint32_t *d_nonceVector, uint32_t *d_hash, int order);
+
+extern void x13_fugue512_cpu_init(int thr_id, uint32_t threads);
+extern void x13_fugue512_cpu_hash_64(int thr_id, uint32_t threads, uint32_t startNounce, uint32_t *d_nonceVector, uint32_t *d_hash, int order);
+extern void x13_fugue512_cpu_free(int thr_id);
+
+extern void x14_shabal512_cpu_init(int thr_id, uint32_t threads);
+extern void x14_shabal512_cpu_hash_64(int thr_id, uint32_t threads, uint32_t startNounce, uint32_t *d_nonceVector, uint32_t *d_hash, int order);
+
+extern void x15_whirlpool_cpu_init(int thr_id, uint32_t threads, int mode);
+extern void x15_whirlpool_cpu_hash_64(int thr_id, uint32_t threads, uint32_t startNounce, uint32_t *d_nonceVector, uint32_t *d_hash, int order);
+extern void x15_whirlpool_cpu_free(int thr_id);
+
+extern void x11_echo512_cpu_init(int thr_id, uint32_t threads);
+extern void x11_echo512_cpu_hash_64(int thr_id, uint32_t threads, uint32_t startNounce, uint32_t *d_nonceVector, uint32_t *d_hash, int order);
+
+extern void bastion_init(const int thr_id, const uint32_t threads);
+extern void bastion_free(const int thr_id);
+
+extern uint32_t bastion_filter2(const int thr_id, const uint32_t threads, const uint32_t *inpHashes, uint32_t* d_hash1, uint32_t* d_hash2);
+extern void bastion_merge2(const int thr_id, const uint32_t threads, uint32_t *outpHashes, uint32_t* d_hash1, uint32_t* d_hash2);
+
+extern void hefty_cpu_hash(int thr_id, uint32_t threads, int startNounce);
+extern void hefty_cpu_setBlock(int thr_id, uint32_t threads, void *data, int len);
+extern void hefty_cpu_init(int thr_id, uint32_t threads);
+extern void hefty_cpu_free(int thr_id);
+extern void hefty_copy_hashes(int thr_id, uint32_t threads, uint32_t* d_outputhash);
+
+#define TRACE(algo) {}
+
+static bool init[MAX_GPUS] = { 0 };
+
+int scanhash_bastion(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];
+	// CUDA will process thousands of threads.
+	uint32_t throughput = cuda_default_throughput(thr_id, 1U << 20);
+	if (init[thr_id]) throughput = min(throughput, max_nonce - first_nonce);
+
+	if (opt_benchmark)
+		ptarget[7] = 0x00ff;
+
+	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_SAFE_CALL(cudaMalloc(&d_hash[thr_id], (size_t) 64 * throughput));
+		CUDA_SAFE_CALL(cudaMalloc(&d_hash_br1[thr_id], (size_t) 64 * throughput));
+		CUDA_SAFE_CALL(cudaMalloc(&d_hash_br2[thr_id], (size_t) 64 * throughput));
+
+		bastion_init(thr_id, throughput);
+		hefty_cpu_init(thr_id, throughput);
+		x11_luffa512_cpu_init(thr_id, throughput);
+
+		quark_skein512_cpu_init(thr_id, throughput);
+		x13_hamsi512_cpu_init(thr_id, throughput);
+		x13_fugue512_cpu_init(thr_id, throughput);
+		x14_shabal512_cpu_init(thr_id, throughput);
+		x15_whirlpool_cpu_init(thr_id, throughput, 0);
+		x11_echo512_cpu_init(thr_id, throughput);
+
+		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]);
+
+	hefty_cpu_setBlock(thr_id, throughput, endiandata, 80);
+
+	cuda_check_cpu_setTarget(ptarget);
+
+	do {
+		uint32_t branchNonces;
+		int order = 0;
+
+		// hefty
+		hefty_cpu_hash(thr_id, throughput, pdata[19]);
+		hefty_copy_hashes(thr_id, throughput, d_hash[thr_id]);
+		TRACE("hefty  :");
+
+		x11_luffa512_cpu_hash_64(thr_id, throughput, pdata[19], NULL, d_hash[thr_id], order++);
+		TRACE("luffa  :");
+
+		// fugue or skein
+		branchNonces = bastion_filter2(thr_id, throughput, d_hash[thr_id], d_hash_br1[thr_id], d_hash_br2[thr_id]);
+		x13_fugue512_cpu_hash_64(thr_id, branchNonces, pdata[19], NULL, d_hash_br1[thr_id], order++);
+		quark_skein512_cpu_hash_64(thr_id, throughput-branchNonces, pdata[19], NULL, d_hash_br2[thr_id], order++);
+		bastion_merge2(thr_id, throughput, d_hash[thr_id], d_hash_br1[thr_id], d_hash_br2[thr_id]);
+		TRACE("perm1  :");
+
+		x15_whirlpool_cpu_hash_64(thr_id, throughput, pdata[19], NULL, d_hash[thr_id], order++);
+		TRACE("whirl  :");
+		x13_fugue512_cpu_hash_64(thr_id, throughput, pdata[19], NULL, d_hash[thr_id], order++);
+
+		// echo or luffa
+		branchNonces = bastion_filter2(thr_id, throughput, d_hash[thr_id], d_hash_br1[thr_id], d_hash_br2[thr_id]);
+		x11_echo512_cpu_hash_64(thr_id, branchNonces, pdata[19], NULL, d_hash_br1[thr_id], order++);
+		x11_luffa512_cpu_hash_64(thr_id, throughput-branchNonces, pdata[19], NULL, d_hash_br2[thr_id], order++);
+		bastion_merge2(thr_id, throughput, d_hash[thr_id], d_hash_br1[thr_id], d_hash_br2[thr_id]);
+		TRACE("perm2  :");
+
+		x14_shabal512_cpu_hash_64(thr_id, throughput, pdata[19], NULL, d_hash[thr_id], order++);
+		quark_skein512_cpu_hash_64(thr_id, throughput, pdata[19], NULL, d_hash[thr_id], order++);
+
+		// shabal or whirlpool
+		branchNonces = bastion_filter2(thr_id, throughput, d_hash[thr_id], d_hash_br1[thr_id], d_hash_br2[thr_id]);
+		x14_shabal512_cpu_hash_64(thr_id, branchNonces, pdata[19], NULL, d_hash_br1[thr_id], order++);
+		x15_whirlpool_cpu_hash_64(thr_id, throughput-branchNonces, pdata[19], NULL, d_hash_br2[thr_id], order++);
+		bastion_merge2(thr_id, throughput, d_hash[thr_id], d_hash_br1[thr_id], d_hash_br2[thr_id]);
+		TRACE("perm3  :");
+
+		x14_shabal512_cpu_hash_64(thr_id, throughput, pdata[19], NULL, d_hash[thr_id], order++);
+
+		// hamsi or luffa
+		branchNonces = bastion_filter2(thr_id, throughput, d_hash[thr_id], d_hash_br1[thr_id], d_hash_br2[thr_id]);
+		x13_hamsi512_cpu_hash_64(thr_id, branchNonces, pdata[19], NULL, d_hash_br1[thr_id], order++);
+		x11_luffa512_cpu_hash_64(thr_id, throughput-branchNonces, pdata[19], NULL, d_hash_br2[thr_id], order++);
+		bastion_merge2(thr_id, throughput, d_hash[thr_id], d_hash_br1[thr_id], d_hash_br2[thr_id]);
+		TRACE("perm4  :");
+
+		*hashes_done = pdata[19] - first_nonce + throughput;
+
+		CUDA_LOG_ERROR();
+
+		work->nonces[0] = cuda_check_hash(thr_id, throughput, pdata[19], d_hash[thr_id]);
+		if (work->nonces[0] != UINT32_MAX)
+		{
+			uint32_t _ALIGN(64) vhash[8];
+			const uint32_t Htarg = ptarget[7];
+			endiandata[19] = work->nonces[0];
+			bastionhash(vhash, (uchar*) endiandata);
+
+			if (vhash[7] <= Htarg && fulltest(vhash, ptarget)) {
+				work->valid_nonces = 1;
+				work_set_target_ratio(work, vhash);
+				work->nonces[0] = swab32(work->nonces[0]);
+				work->nonces[1] = cuda_check_hash_suppl(thr_id, throughput, pdata[19], d_hash[thr_id], 1);
+				if (work->nonces[1] != 0) {
+					endiandata[19] = work->nonces[1];
+					bastionhash(vhash, (uchar*) endiandata);
+					bn_set_target_ratio(work, vhash, 1);
+					work->valid_nonces++;
+					work->nonces[1] = swab32(work->nonces[1]);
+					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] = swab32(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;
+
+	CUDA_LOG_ERROR();
+
+	return 0;
+}
+
+// cleanup
+extern "C" void free_bastion(int thr_id)
+{
+	if (!init[thr_id])
+		return;
+
+	cudaThreadSynchronize();
+
+	cudaFree(d_hash[thr_id]);
+	cudaFree(d_hash_br1[thr_id]);
+	cudaFree(d_hash_br2[thr_id]);
+
+	hefty_cpu_free(thr_id);
+	x13_fugue512_cpu_free(thr_id);
+	x15_whirlpool_cpu_free(thr_id);
+
+	bastion_free(thr_id);
+	cuda_check_cpu_free(thr_id);
+	init[thr_id] = false;
+
+	cudaDeviceSynchronize();
+}
+
+#undef SPH_C32
+#undef SPH_T32
+#undef SPH_C64
+#undef SPH_T64
+extern "C" {
+#include "hefty1.h"
+#include "sph/sph_luffa.h"
+#include "sph/sph_fugue.h"
+#include "sph/sph_skein.h"
+#include "sph/sph_whirlpool.h"
+#include "sph/sph_shabal.h"
+#include "sph/sph_echo.h"
+#include "sph/sph_hamsi.h"
+}
+
+__host__
+void bastionhash(void* output, const uchar* input)
+{
+	unsigned char _ALIGN(128) hash[64] = { 0 };
+
+	sph_echo512_context ctx_echo;
+	sph_luffa512_context ctx_luffa;
+	sph_fugue512_context ctx_fugue;
+	sph_whirlpool_context ctx_whirlpool;
+	sph_shabal512_context ctx_shabal;
+	sph_skein512_context ctx_skein;
+	sph_hamsi512_context ctx_hamsi;
+
+	HEFTY1(input, 80, hash);
+
+	sph_luffa512_init(&ctx_luffa);
+	sph_luffa512(&ctx_luffa, hash, 64);
+	sph_luffa512_close(&ctx_luffa, hash);
+
+	if (hash[0] & 0x8)
+	{
+		sph_fugue512_init(&ctx_fugue);
+		sph_fugue512(&ctx_fugue, hash, 64);
+		sph_fugue512_close(&ctx_fugue, hash);
+	} else {
+		sph_skein512_init(&ctx_skein);
+		sph_skein512(&ctx_skein, hash, 64);
+		sph_skein512_close(&ctx_skein, hash);
+	}
+
+	sph_whirlpool_init(&ctx_whirlpool);
+	sph_whirlpool(&ctx_whirlpool, hash, 64);
+	sph_whirlpool_close(&ctx_whirlpool, hash);
+
+	sph_fugue512_init(&ctx_fugue);
+	sph_fugue512(&ctx_fugue, hash, 64);
+	sph_fugue512_close(&ctx_fugue, hash);
+
+	if (hash[0] & 0x8)
+	{
+		sph_echo512_init(&ctx_echo);
+		sph_echo512(&ctx_echo, hash, 64);
+		sph_echo512_close(&ctx_echo, hash);
+	} else {
+		sph_luffa512_init(&ctx_luffa);
+		sph_luffa512(&ctx_luffa, hash, 64);
+		sph_luffa512_close(&ctx_luffa, hash);
+	}
+
+	sph_shabal512_init(&ctx_shabal);
+	sph_shabal512(&ctx_shabal, hash, 64);
+	sph_shabal512_close(&ctx_shabal, hash);
+
+	sph_skein512_init(&ctx_skein);
+	sph_skein512(&ctx_skein, hash, 64);
+	sph_skein512_close(&ctx_skein, hash);
+
+	if (hash[0] & 0x8)
+	{
+		sph_shabal512_init(&ctx_shabal);
+		sph_shabal512(&ctx_shabal, hash, 64);
+		sph_shabal512_close(&ctx_shabal, hash);
+	} else {
+		sph_whirlpool_init(&ctx_whirlpool);
+		sph_whirlpool(&ctx_whirlpool, hash, 64);
+		sph_whirlpool_close(&ctx_whirlpool, hash);
+	}
+
+	sph_shabal512_init(&ctx_shabal);
+	sph_shabal512(&ctx_shabal, hash, 64);
+	sph_shabal512_close(&ctx_shabal, hash);
+
+	if (hash[0] & 0x8)
+	{
+		sph_hamsi512_init(&ctx_hamsi);
+		sph_hamsi512(&ctx_hamsi, hash, 64);
+		sph_hamsi512_close(&ctx_hamsi, hash);
+	} else {
+		sph_luffa512_init(&ctx_luffa);
+		sph_luffa512(&ctx_luffa, hash, 64);
+		sph_luffa512_close(&ctx_luffa, hash);
+	}
+
+	memcpy(output, hash, 32);
+}

heavy/cuda_bastion.cu

@@ -0,0 +1,103 @@
+#include <stdio.h>
+
+#include "cuda_helper.h"
+
+static uint32_t *d_offsets1[MAX_GPUS] = { 0 };
+static uint32_t *d_offsets2[MAX_GPUS] = { 0 };
+
+static uint32_t *d_brcount1[MAX_GPUS] = { 0 };
+static uint32_t *d_brcount2[MAX_GPUS] = { 0 };
+
+__global__ __launch_bounds__(128, 6)
+void bastion_filter2_gpu(const uint32_t threads, const uint32_t* d_hash, uint32_t* d_hash1, uint32_t* d_hash2, uint32_t* d_br_ofts1, uint32_t* d_count1, uint32_t* d_br_ofts2, uint32_t* d_count2)
+{
+	const uint32_t thread = (blockDim.x * blockIdx.x + threadIdx.x);
+	if (thread < threads)
+	{
+		const uint32_t offset = thread * 16U; // 64U / sizeof(uint32_t);
+		uint4 *psrc = (uint4*) (&d_hash[offset]);
+		uint4 *pdst;
+		d_br_ofts1[thread] = 0;
+		d_br_ofts2[thread] = 0;
+		if (((uint8_t*)psrc)[0] & 0x8) {
+			// uint4 = 4x uint32_t = 16 bytes
+			uint32_t oft = atomicAdd(d_count1, 1U) * 16U;
+			d_br_ofts1[thread] = oft + 16U;
+			pdst = (uint4*) (&d_hash1[oft]);
+		} else {
+			uint32_t oft = atomicAdd(d_count2, 1U) * 16U;
+			d_br_ofts2[thread] = oft + 16U;
+			pdst = (uint4*) (&d_hash2[oft]);
+		}
+		pdst[0] = psrc[0];
+		pdst[1] = psrc[1];
+		pdst[2] = psrc[2];
+		pdst[3] = psrc[3];
+	}
+}
+
+__global__ __launch_bounds__(128, 6)
+void bastion_merge2_gpu(const uint32_t threads, uint32_t* d_hash, uint32_t* d_hash1, uint32_t* d_hash2, uint32_t* d_br_ofts1, uint32_t* d_br_ofts2)
+{
+	const uint32_t thread = (blockDim.x * blockIdx.x + threadIdx.x);
+	if (thread < threads)
+	{
+		const uint32_t offset = thread * 16U;
+		uint4 *pdst = (uint4*) (&d_hash[offset]);
+		uint4 *psrc;
+		if (d_br_ofts1[thread]) {
+			const uint32_t oft = d_br_ofts1[thread] - 16U;
+			psrc = (uint4*) (&d_hash1[oft]);
+		} else {
+			const uint32_t oft = d_br_ofts2[thread] - 16U;
+			psrc = (uint4*) (&d_hash2[oft]);
+		}
+		pdst[0] = psrc[0];
+		pdst[1] = psrc[1];
+		pdst[2] = psrc[2];
+		pdst[3] = psrc[3];
+	}
+}
+
+
+__host__
+void bastion_init(const int thr_id, const uint32_t threads)
+{
+	CUDA_SAFE_CALL(cudaMalloc(&d_offsets1[thr_id], sizeof(uint32_t) * threads));
+	CUDA_SAFE_CALL(cudaMalloc(&d_offsets2[thr_id], sizeof(uint32_t) * threads));
+	CUDA_SAFE_CALL(cudaMalloc(&d_brcount1[thr_id], sizeof(uint32_t)));
+	CUDA_SAFE_CALL(cudaMalloc(&d_brcount2[thr_id], sizeof(uint32_t)));
+}
+
+__host__
+void bastion_free(const int thr_id)
+{
+	cudaFree(d_offsets1[thr_id]);
+	cudaFree(d_offsets2[thr_id]);
+	cudaFree(d_brcount1[thr_id]);
+	cudaFree(d_brcount2[thr_id]);
+}
+
+__host__
+uint32_t bastion_filter2(const int thr_id, const uint32_t threads, const uint32_t *inpHashes, uint32_t* d_hash1, uint32_t* d_hash2)
+{
+	uint32_t num = 0;
+	cudaMemset(d_brcount1[thr_id], 0, 4);
+	cudaMemset(d_brcount2[thr_id], 0, 4);
+	const uint32_t threadsperblock = 128;
+	dim3 grid((threads + threadsperblock - 1) / threadsperblock);
+	dim3 block(threadsperblock);
+	bastion_filter2_gpu <<<grid, block>>> (threads, inpHashes, d_hash1, d_hash2, d_offsets1[thr_id], d_brcount1[thr_id], d_offsets2[thr_id], d_brcount2[thr_id]);
+	cudaMemcpy(&num, d_brcount1[thr_id], 4, cudaMemcpyDeviceToHost);
+	return num;
+}
+
+__host__
+void bastion_merge2(const int thr_id, const uint32_t threads, uint32_t *outpHashes, uint32_t* d_hash1, uint32_t* d_hash2)
+{
+	const uint32_t threadsperblock = 128;
+	dim3 grid((threads + threadsperblock - 1) / threadsperblock);
+	dim3 block(threadsperblock);
+	// put back branch hashes to the common buffer d_hash
+	bastion_merge2_gpu <<<grid, block>>> (threads, outpHashes, d_hash1, d_hash2, d_offsets1[thr_id], d_offsets2[thr_id]);
+}

heavy/cuda_hefty1.cu

@@ -417,3 +417,31 @@ void hefty_cpu_hash(int thr_id, uint32_t threads, int startNounce)
     // Strategisches Sleep Kommando zur Senkung der CPU Last
     MyStreamSynchronize(NULL, 0, thr_id);
 }
+
+__global__
+__launch_bounds__(128, 8)
+void hefty_gpu_copy(const uint32_t threads, uint32_t* d_heftyhash, uint64_t* d_hash)
+{
+    const uint32_t thread = (blockDim.x * blockIdx.x + threadIdx.x);
+    if (thread < threads)
+    {
+        const uint32_t offset = thread * 8U; // 32 / sizeof(uint32_t);
+        uint4 *psrc = (uint4*) (&d_heftyhash[offset]);
+        uint4 *pdst = (uint4*) (&d_hash[offset]);
+        pdst[0] = psrc[0];
+        pdst[1] = psrc[1];
+        pdst[2] = make_uint4(0,0,0,0);
+        pdst[3] = make_uint4(0,0,0,0);
+    }
+}
+
+__host__
+void hefty_copy_hashes(int thr_id, uint32_t threads, uint32_t* d_outputhash)
+{
+    const uint32_t threadsperblock = 128;
+    dim3 grid((threads + threadsperblock - 1) / threadsperblock);
+    dim3 block(threadsperblock);
+    hefty_gpu_copy <<< grid, block >>> (threads, heavy_heftyHashes[thr_id], (uint64_t*) d_outputhash);
+    cudaStreamSynchronize(NULL);
+}
+

miner.h

@@ -273,6 +273,7 @@ void sha256d(unsigned char *hash, const unsigned char *data, int len);
 
 struct work;
 
+extern int scanhash_bastion(int thr_id, struct work* work, uint32_t max_nonce, unsigned long *hashes_done);
 extern int scanhash_blake256(int thr_id, struct work* work, uint32_t max_nonce, unsigned long *hashes_done, int8_t blakerounds);
 extern int scanhash_blake2s(int thr_id, struct work *work, uint32_t max_nonce, unsigned long *hashes_done);
 extern int scanhash_bmw(int thr_id, struct work* work, uint32_t max_nonce, unsigned long *hashes_done);
@@ -326,6 +327,7 @@ extern int scanhash_scrypt_jane(int thr_id, struct work *work, uint32_t max_nonc
 /* free device allocated memory per algo */
 void algo_free_all(int thr_id);
 
+extern void free_bastion(int thr_id);
 extern void free_blake256(int thr_id);
 extern void free_blake2s(int thr_id);
 extern void free_bmw(int thr_id);
@@ -846,6 +848,7 @@ void applog_hash64(void *hash);
 void applog_compare_hash(void *hash, void *hash_ref);
 
 void print_hash_tests(void);
+void bastionhash(void* output, const unsigned char* input);
 void blake256hash(void *output, const void *input, int8_t rounds);
 void blake2s_hash(void *output, const void *input);
 void bmw_hash(void *state, const void *input);

util.cpp

@@ -2139,6 +2139,9 @@ void print_hash_tests(void)
 
 	printf(CL_WHT "CPU HASH ON EMPTY BUFFER RESULTS:" CL_N "\n");
 
+	bastionhash(&hash[0], &buf[0]);
+	printpfx("bastion", hash);
+
 	blake256hash(&hash[0], &buf[0], 8);
 	printpfx("blakecoin", hash);