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Code Issues Releases Wiki Activity

eliminate extra memory allocation

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orignal 2017-05-03 18:03:36 -04:00
parent 6cf9ddd34c
commit 523237ccbc
1 changed files with 4 additions and 5 deletions
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9
gost/cuda_gosthash.cu
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@ -843,12 +843,11 @@ void GOST_g_0(uint64_t* h, uint64_t* const M)
__device__
void GOST_g_0_0(uint64_t* h, uint64_t* const M) // input h assumed zero, for iv 512
{
uint64_t K0[8];
#pragma unroll
for(int i = 0; i < 8; i++) K0[i] = 0x74a5d4ce2efc83b3; // GOST_F(0)
for(int i = 0; i < 8; i++) h[i] = 0x74a5d4ce2efc83b3; // GOST_F(0)
uint64_t t[8];
GOST_E(K0, M, t);
GOST_E(h, M, t);
GOST_Xor512 (h, t, M); // h = t ^ M
}
@ -868,9 +867,9 @@ void gostd_gpu_hash_80(const uint32_t threads, const uint32_t startNonce, uint32
#pragma unroll
for (int i = 0; i < 8; i++) block2[i] = c_header2[i];
((uint32_t *)block2)[15] = cuda_swab32 (nonce); // change nonce
uint64_t __align__(8) hash1[8] = { 0 }; // iv for 512
uint64_t __align__(8) hash1[8];
// second block
GOST_g_0_0 (hash1, block2); // zero iv assumed
GOST_g_0_0 (hash1, block2); // zero iv for 512 assumed
N[7] = 0x0002000000000000; // 512
// first block
GOST_g_N(hash1, c_header1 + 2, N);