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use shared memory for tables

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orignal 2017-05-12 10:19:09 -04:00
parent f4c1f50617
commit 07ab2b3ea0
1 changed files with 35 additions and 16 deletions
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51
gost/cuda_gosthash.cu
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@ -555,6 +555,16 @@ __device__ static uint64_t T7[256] = {
0x717E7067AF4F499A, 0x938290A9ECD1DBB3, 0x88E3B293344DD172, 0x2734158C250FA3D6
};
// local copy of T0..T7 for each block
__shared__ static uint64_t T0S[256];
__shared__ static uint64_t T1S[256];
__shared__ static uint64_t T2S[256];
__shared__ static uint64_t T3S[256];
__shared__ static uint64_t T4S[256];
__shared__ static uint64_t T5S[256];
__shared__ static uint64_t T6S[256];
__shared__ static uint64_t T7S[256];
// KeySchedule
__constant__ static uint64_t CC[12][8] = {{
0xe9daca1eda5b08b1, 0x1f7c65c0812fcbeb, 0x16d0452e43766a2f, 0xfcc485758db84e71,
@ -677,23 +687,23 @@ void GOST_FS(uint64_t* const state64, uint64_t* return_state)
#pragma unroll 4
for (int b=0; b<4; b++)
{
return_state[b] = T0[EXTRACT_BYTE(state32[14], b)]
^ T1[EXTRACT_BYTE(state32[12], b)]
^ T2[EXTRACT_BYTE(state32[10], b)]
^ T3[EXTRACT_BYTE(state32[8], b)]
^ T4[EXTRACT_BYTE(state32[6], b)]
^ T5[EXTRACT_BYTE(state32[4], b)]
^ T6[EXTRACT_BYTE(state32[2], b)]
^ T7[EXTRACT_BYTE(state32[0], b)];
return_state[b] = T0S[EXTRACT_BYTE(state32[14], b)]
^ T1S[EXTRACT_BYTE(state32[12], b)]
^ T2S[EXTRACT_BYTE(state32[10], b)]
^ T3S[EXTRACT_BYTE(state32[8], b)]
^ T4S[EXTRACT_BYTE(state32[6], b)]
^ T5S[EXTRACT_BYTE(state32[4], b)]
^ T6S[EXTRACT_BYTE(state32[2], b)]
^ T7S[EXTRACT_BYTE(state32[0], b)];
return_state[b+4] = T0[EXTRACT_BYTE(state32[15], b)]
^ T1[EXTRACT_BYTE(state32[13], b)]
^ T2[EXTRACT_BYTE(state32[11], b)]
^ T3[EXTRACT_BYTE(state32[9], b)]
^ T4[EXTRACT_BYTE(state32[7], b)]
^ T5[EXTRACT_BYTE(state32[5], b)]
^ T6[EXTRACT_BYTE(state32[3], b)]
^ T7[EXTRACT_BYTE(state32[1], b)];
return_state[b+4] = T0S[EXTRACT_BYTE(state32[15], b)]
^ T1S[EXTRACT_BYTE(state32[13], b)]
^ T2S[EXTRACT_BYTE(state32[11], b)]
^ T3S[EXTRACT_BYTE(state32[9], b)]
^ T4S[EXTRACT_BYTE(state32[7], b)]
^ T5S[EXTRACT_BYTE(state32[5], b)]
^ T6S[EXTRACT_BYTE(state32[3], b)]
^ T7S[EXTRACT_BYTE(state32[1], b)];
}
}
@ -782,6 +792,15 @@ __global__
void gostd_gpu_hash_80(const uint32_t threads, const uint32_t startNonce, uint32_t *resNonces)
{
uint32_t thread = (blockDim.x * blockIdx.x + threadIdx.x);
// copy table to shared memory, we assume 256 threads per block
T0S[threadIdx.x] = T0[threadIdx.x];
T1S[threadIdx.x] = T1[threadIdx.x];
T2S[threadIdx.x] = T2[threadIdx.x];
T3S[threadIdx.x] = T3[threadIdx.x];
T4S[threadIdx.x] = T4[threadIdx.x];
T5S[threadIdx.x] = T5[threadIdx.x];
T6S[threadIdx.x] = T6[threadIdx.x];
T7S[threadIdx.x] = T7[threadIdx.x];
if (thread < threads)
{
const uint32_t nonce = startNonce + thread;