minor keccak change

libethash-cuda/CMakeLists.txt

@@ -13,7 +13,7 @@ LIST(APPEND CUDA_NVCC_FLAGS_DEBUG -G)
 if(COMPUTE AND (COMPUTE GREATER 0))
 	LIST(APPEND CUDA_NVCC_FLAGS -gencode arch=compute_${COMPUTE},code=sm_${COMPUTE})
 else(COMPUTE AND (COMPUTE GREATER 0))
-	set(CUDA_NVCC_FLAGS ${CUDA_NVCC_FLAGS};-gencode arch=compute_20,code=sm_20;-gencode arch=compute_30,code=sm_30;-gencode arch=compute_35,code=sm_35;-gencode arch=compute_50,code=sm_50;-gencode arch=compute_52,code=sm_52)
+	set(CUDA_NVCC_FLAGS ${CUDA_NVCC_FLAGS};-gencode arch=compute_35,code=sm_35;-gencode arch=compute_50,code=sm_50)
 endif(COMPUTE AND (COMPUTE GREATER 0))
 
 

libethash-cuda/dagger_shuffled.cuh

@@ -85,7 +85,5 @@ __device__ uint64_t compute_hash_shuffle(
 	}
 	
 	// keccak_256(keccak_512(header..nonce) .. mix);
-	keccak_f1600_final(state);
-	
-	return devectorize(state[0]);
+	return keccak_f1600_final(state);
 }

libethash-cuda/keccak.cuh

@@ -289,7 +289,6 @@ __device__ __forceinline__ void keccak_f1600_init(uint2* s)
 	s[6] = xor3(s[6], t[0], u);
 	s[16] = xor3(s[16], t[0], u);
 
-
 	u = ROL2(t[3], 1);
 	s[12] = xor3(s[12], t[1], u);
 	s[22] = xor3(s[22], t[1], u);
@@ -323,8 +322,6 @@ __device__ __forceinline__ void keccak_f1600_init(uint2* s)
 	s[2] = chi(s[2], s[3], s[4]);
 	s[3] = chi(s[3], s[4], u);
 	s[4] = chi(s[4], u, v);
-
-	u = s[5]; v = s[6];
 	s[5] = chi(s[5], s[6], s[7]);
 	s[6] = chi(s[6], s[7], s[8]);
 	s[7] = chi(s[7], s[8], s[9]);
@@ -333,7 +330,7 @@ __device__ __forceinline__ void keccak_f1600_init(uint2* s)
 	s[0] ^= vectorize(keccak_round_constants[23]);
 }
 
-__device__ __forceinline__ void keccak_f1600_final(uint2* s)
+__device__ __forceinline__ uint64_t keccak_f1600_final(uint2* s)
 {
 	uint2 t[5], u, v;
 
@@ -589,5 +586,6 @@ __device__ __forceinline__ void keccak_f1600_final(uint2* s)
 	s[0] = chi(s[0], s[1], s[2]);
 
 	/* iota: a[0,0] ^= round constant */
-	s[0] ^= vectorize(keccak_round_constants[23]);
+	//s[0] ^= vectorize(keccak_round_constants[23]);
+	return devectorize(s[0]) ^ keccak_round_constants[23];
 }