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Skein/Skein2 SM 3.0 devices support 

+ code cleanup

Signed-off-by: Tanguy Pruvot <tanguy.pruvot@gmail.com>
master 1.6.1-tpruvot
Tanguy Pruvot 10 years ago
parent
d58d53f2b2
commit
163430daae
4 changed files with 261 additions and 99 deletions
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  1. 1
      README.txt
  2. 311
      quark/cuda_skein512.cu
  3. 33
      skein.cu
  4. 13
      skein2.cu

1
README.txt
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@ -192,6 +192,7 @@ features.
Apr. 14th 2015 v1.6.1 Apr. 14th 2015 v1.6.1
Add the Double Skein Algo for Woodcoin Add the Double Skein Algo for Woodcoin
Skein/Skein2 SM 3.0 devices support
Mar. 27th 2015 v1.6.0 Mar. 27th 2015 v1.6.0
Add the ZR5 Algo for Ziftcoin Add the ZR5 Algo for Ziftcoin

311
quark/cuda_skein512.cu
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@ -451,7 +451,7 @@ void quark_skein512_gpu_hash_64(uint32_t threads, uint32_t startNounce, uint64_t
} }
__global__ __global__
void quark_skein512_gpu_hash_64_v30(uint32_t threads, uint32_t startNounce, uint64_t * const __restrict__ g_hash, uint32_t *g_nonceVector) void quark_skein512_gpu_hash_64_sm3(uint32_t threads, uint32_t startNounce, uint64_t * const __restrict__ g_hash, uint32_t *g_nonceVector)
{ {
uint32_t thread = (blockDim.x * blockIdx.x + threadIdx.x); uint32_t thread = (blockDim.x * blockIdx.x + threadIdx.x);
if (thread < threads) if (thread < threads)
@ -464,7 +464,7 @@ void quark_skein512_gpu_hash_64_v30(uint32_t threads, uint32_t startNounce, uint
uint32_t nounce = (g_nonceVector != NULL) ? g_nonceVector[thread] : (startNounce + thread); uint32_t nounce = (g_nonceVector != NULL) ? g_nonceVector[thread] : (startNounce + thread);
int hashPosition = nounce - startNounce; int hashPosition = nounce - startNounce;
uint64_t *inpHash = &g_hash[8 * hashPosition]; uint64_t *inpHash = &g_hash[hashPosition * 8];
// Init // Init
h0 = 0x4903ADFF749C51CEull; h0 = 0x4903ADFF749C51CEull;
@ -542,7 +542,7 @@ void quark_skein512_gpu_hash_64_v30(uint32_t threads, uint32_t startNounce, uint
TFBIG_ADDKEY(p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7], h, t, 18); TFBIG_ADDKEY(p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7], h, t, 18);
// output // output
uint64_t *outpHash = &g_hash[8 * hashPosition]; uint64_t *outpHash = &g_hash[hashPosition * 8];
#pragma unroll 8 #pragma unroll 8
for(int i=0; i<8; i++) for(int i=0; i<8; i++)
@ -550,57 +550,6 @@ void quark_skein512_gpu_hash_64_v30(uint32_t threads, uint32_t startNounce, uint
} }
} }
__global__ __launch_bounds__(128,6)
void skein512_gpu_hash_close(uint32_t threads, uint32_t startNounce, uint64_t *g_hash)
{
uint32_t thread = (blockDim.x * blockIdx.x + threadIdx.x);
if (thread < threads)
{
uint2 t0 = vectorize(8); // extra
uint2 t1 = vectorize(0xFF00000000000000ull); // etype
uint2 t2 = vectorize(0xB000000000000050ull);
uint64_t *state = &g_hash[8 * thread];
uint2 h0 = vectorize(state[0]);
uint2 h1 = vectorize(state[1]);
uint2 h2 = vectorize(state[2]);
uint2 h3 = vectorize(state[3]);
uint2 h4 = vectorize(state[4]);
uint2 h5 = vectorize(state[5]);
uint2 h6 = vectorize(state[6]);
uint2 h7 = vectorize(state[7]);
uint2 h8;
TFBIG_KINIT_UI2(h0, h1, h2, h3, h4, h5, h6, h7, h8, t0, t1, t2);
uint2 p[8] = { 0 };
TFBIG_4e_UI2(0);
TFBIG_4o_UI2(1);
TFBIG_4e_UI2(2);
TFBIG_4o_UI2(3);
TFBIG_4e_UI2(4);
TFBIG_4o_UI2(5);
TFBIG_4e_UI2(6);
TFBIG_4o_UI2(7);
TFBIG_4e_UI2(8);
TFBIG_4o_UI2(9);
TFBIG_4e_UI2(10);
TFBIG_4o_UI2(11);
TFBIG_4e_UI2(12);
TFBIG_4o_UI2(13);
TFBIG_4e_UI2(14);
TFBIG_4o_UI2(15);
TFBIG_4e_UI2(16);
TFBIG_4o_UI2(17);
TFBIG_ADDKEY_UI2(p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7], h, t, 18);
uint64_t *outpHash = state;
#pragma unroll 8
for (int i = 0; i < 8; i++)
outpHash[i] = devectorize(p[i]);
}
}
__global__ __launch_bounds__(128,5) __global__ __launch_bounds__(128,5)
void skein512_gpu_hash_80(uint32_t threads, uint32_t startNounce, uint64_t *output64, int swap) void skein512_gpu_hash_80(uint32_t threads, uint32_t startNounce, uint64_t *output64, int swap)
{ {
@ -695,25 +644,219 @@ void skein512_gpu_hash_80(uint32_t threads, uint32_t startNounce, uint64_t *outp
TFBIG_4o_UI2(17); TFBIG_4o_UI2(17);
TFBIG_ADDKEY_UI2(p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7], h, t, 18); TFBIG_ADDKEY_UI2(p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7], h, t, 18);
h0 = vectorize(c_PaddedMessage80[8]) ^ p[0]; uint64_t *outpHash = &output64[thread * 8];
h1 = nounce2 ^ p[1]; outpHash[0] = c_PaddedMessage80[8] ^ devectorize(p[0]);
h2 = p[2]; outpHash[1] = devectorize(nounce2 ^ p[1]);
h3 = p[3]; #pragma unroll
h4 = p[4]; for(int i=2; i<8; i++)
h5 = p[5]; outpHash[i] = devectorize(p[i]);
h6 = p[6]; }
h7 = p[7]; }
__global__
void skein512_gpu_hash_80_sm3(uint32_t threads, uint32_t startNounce, uint64_t *output64, int swap)
{
uint32_t thread = (blockDim.x * blockIdx.x + threadIdx.x);
if (thread < threads)
{
uint64_t h0, h1, h2, h3, h4, h5, h6, h7, h8;
uint64_t t0, t1, t2;
// Init
h0 = 0x4903ADFF749C51CEull;
h1 = 0x0D95DE399746DF03ull;
h2 = 0x8FD1934127C79BCEull;
h3 = 0x9A255629FF352CB1ull;
h4 = 0x5DB62599DF6CA7B0ull;
h5 = 0xEABE394CA9D5C3F4ull;
h6 = 0x991112C71A75B523ull;
h7 = 0xAE18A40B660FCC33ull;
t0 = 64; // ptr
//t1 = vectorize(0xE0ull << 55); // etype
t1 = 0x7000000000000000ull;
TFBIG_KINIT(h0, h1, h2, h3, h4, h5, h6, h7, h8, t0, t1, t2);
uint64_t p[8];
#pragma unroll 8
for (int i = 0; i<8; i++)
p[i] = c_PaddedMessage80[i];
TFBIG_4e(0);
TFBIG_4o(1);
TFBIG_4e(2);
TFBIG_4o(3);
TFBIG_4e(4);
TFBIG_4o(5);
TFBIG_4e(6);
TFBIG_4o(7);
TFBIG_4e(8);
TFBIG_4o(9);
TFBIG_4e(10);
TFBIG_4o(11);
TFBIG_4e(12);
TFBIG_4o(13);
TFBIG_4e(14);
TFBIG_4o(15);
TFBIG_4e(16);
TFBIG_4o(17);
TFBIG_ADDKEY(p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7], h, t, 18);
h0 = c_PaddedMessage80[0] ^ p[0];
h1 = c_PaddedMessage80[1] ^ p[1];
h2 = c_PaddedMessage80[2] ^ p[2];
h3 = c_PaddedMessage80[3] ^ p[3];
h4 = c_PaddedMessage80[4] ^ p[4];
h5 = c_PaddedMessage80[5] ^ p[5];
h6 = c_PaddedMessage80[6] ^ p[6];
h7 = c_PaddedMessage80[7] ^ p[7];
uint32_t nonce = swap ? cuda_swab32(startNounce + thread) : startNounce + thread;
uint64_t nonce64 = MAKE_ULONGLONG(_LOWORD(c_PaddedMessage80[9]), nonce);
// skein_big_close -> etype = 0x160, ptr = 16, bcount = 1, extra = 16
p[0] = c_PaddedMessage80[8];
p[1] = nonce64;
#pragma unroll
for (int i = 2; i < 8; i++)
p[i] = 0ull;
t0 = 0x50ull; // SPH_T64(bcount << 6) + (sph_u64)(extra);
t1 = 0xB000000000000000ull; // (bcount >> 58) + ((sph_u64)(etype) << 55);
TFBIG_KINIT(h0, h1, h2, h3, h4, h5, h6, h7, h8, t0, t1, t2);
TFBIG_4e(0);
TFBIG_4o(1);
TFBIG_4e(2);
TFBIG_4o(3);
TFBIG_4e(4);
TFBIG_4o(5);
TFBIG_4e(6);
TFBIG_4o(7);
TFBIG_4e(8);
TFBIG_4o(9);
TFBIG_4e(10);
TFBIG_4o(11);
TFBIG_4e(12);
TFBIG_4o(13);
TFBIG_4e(14);
TFBIG_4o(15);
TFBIG_4e(16);
TFBIG_4o(17);
TFBIG_ADDKEY(p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7], h, t, 18);
// skein_big_close 2nd loop -> etype = 0x1fe, ptr = 8, bcount = 0 // skein_big_close 2nd loop -> etype = 0x1fe, ptr = 8, bcount = 0
// output
uint64_t *outpHash = &output64[thread * 8]; uint64_t *outpHash = &output64[thread * 8];
outpHash[0] = devectorize(h0); outpHash[0] = c_PaddedMessage80[8] ^ p[0];
outpHash[1] = devectorize(h1); outpHash[1] = nonce64 ^ p[1];
outpHash[2] = devectorize(h2); #pragma unroll
outpHash[3] = devectorize(h3); for(int i=2; i<8; i++)
outpHash[4] = devectorize(h4); outpHash[i] = p[i];
outpHash[5] = devectorize(h5); }
outpHash[6] = devectorize(h6); }
outpHash[7] = devectorize(h7);
__global__ __launch_bounds__(128,6)
void skein512_gpu_hash_close(uint32_t threads, uint32_t startNounce, uint64_t *g_hash)
{
uint32_t thread = (blockDim.x * blockIdx.x + threadIdx.x);
if (thread < threads)
{
uint2 t0 = vectorize(8); // extra
uint2 t1 = vectorize(0xFF00000000000000ull); // etype
uint2 t2 = vectorize(0xB000000000000050ull);
uint64_t *state = &g_hash[thread * 8];
uint2 h0 = vectorize(state[0]);
uint2 h1 = vectorize(state[1]);
uint2 h2 = vectorize(state[2]);
uint2 h3 = vectorize(state[3]);
uint2 h4 = vectorize(state[4]);
uint2 h5 = vectorize(state[5]);
uint2 h6 = vectorize(state[6]);
uint2 h7 = vectorize(state[7]);
uint2 h8;
TFBIG_KINIT_UI2(h0, h1, h2, h3, h4, h5, h6, h7, h8, t0, t1, t2);
uint2 p[8] = { 0 };
TFBIG_4e_UI2(0);
TFBIG_4o_UI2(1);
TFBIG_4e_UI2(2);
TFBIG_4o_UI2(3);
TFBIG_4e_UI2(4);
TFBIG_4o_UI2(5);
TFBIG_4e_UI2(6);
TFBIG_4o_UI2(7);
TFBIG_4e_UI2(8);
TFBIG_4o_UI2(9);
TFBIG_4e_UI2(10);
TFBIG_4o_UI2(11);
TFBIG_4e_UI2(12);
TFBIG_4o_UI2(13);
TFBIG_4e_UI2(14);
TFBIG_4o_UI2(15);
TFBIG_4e_UI2(16);
TFBIG_4o_UI2(17);
TFBIG_ADDKEY_UI2(p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7], h, t, 18);
uint64_t *outpHash = state;
#pragma unroll 8
for (int i = 0; i < 8; i++)
outpHash[i] = devectorize(p[i]);
}
}
__global__ __launch_bounds__(128,6)
void skein512_gpu_hash_close_sm3(uint32_t threads, uint32_t startNounce, uint64_t *g_hash)
{
uint32_t thread = (blockDim.x * blockIdx.x + threadIdx.x);
if (thread < threads)
{
uint64_t t0 = 8ull; // extra
uint64_t t1 = 0xFF00000000000000ull; // etype
uint64_t t2 = 0xB000000000000050ull;
uint64_t *state = &g_hash[thread * 8];
uint64_t h0 = state[0];
uint64_t h1 = state[1];
uint64_t h2 = state[2];
uint64_t h3 = state[3];
uint64_t h4 = state[4];
uint64_t h5 = state[5];
uint64_t h6 = state[6];
uint64_t h7 = state[7];
uint64_t h8;
TFBIG_KINIT(h0, h1, h2, h3, h4, h5, h6, h7, h8, t0, t1, t2);
uint64_t p[8] = { 0 };
TFBIG_4e(0);
TFBIG_4o(1);
TFBIG_4e(2);
TFBIG_4o(3);
TFBIG_4e(4);
TFBIG_4o(5);
TFBIG_4e(6);
TFBIG_4o(7);
TFBIG_4e(8);
TFBIG_4o(9);
TFBIG_4e(10);
TFBIG_4o(11);
TFBIG_4e(12);
TFBIG_4o(13);
TFBIG_4e(14);
TFBIG_4o(15);
TFBIG_4e(16);
TFBIG_4o(17);
TFBIG_ADDKEY(p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7], h, t, 18);
uint64_t *outpHash = state;
#pragma unroll 8
for (int i = 0; i < 8; i++)
outpHash[i] = p[i];
} }
} }
@ -738,33 +881,39 @@ void quark_skein512_cpu_hash_64(int thr_id, uint32_t threads, uint32_t startNoun
if (device_sm[dev_id] > 300 && cuda_arch[dev_id] > 300) if (device_sm[dev_id] > 300 && cuda_arch[dev_id] > 300)
quark_skein512_gpu_hash_64 <<<grid, block>>> (threads, startNounce, (uint64_t*)d_hash, d_nonceVector); quark_skein512_gpu_hash_64 <<<grid, block>>> (threads, startNounce, (uint64_t*)d_hash, d_nonceVector);
else else
quark_skein512_gpu_hash_64_v30 <<<grid, block>>> (threads, startNounce, (uint64_t*)d_hash, d_nonceVector); quark_skein512_gpu_hash_64_sm3 <<<grid, block>>> (threads, startNounce, (uint64_t*)d_hash, d_nonceVector);
MyStreamSynchronize(NULL, order, thr_id); MyStreamSynchronize(NULL, order, thr_id);
} }
/* skeincoin */ /* skein / skein2 */
__host__ __host__
void skein512_cpu_setBlock_80(void *pdata) void skein512_cpu_setBlock_80(void *pdata)
{ {
uint32_t PaddedMessage[32] = { 0 }; cudaMemcpyToSymbol(c_PaddedMessage80, pdata, 80, 0, cudaMemcpyHostToDevice);
memcpy(&PaddedMessage[0], pdata, 80);
CUDA_SAFE_CALL( CUDA_SAFE_CALL(cudaStreamSynchronize(NULL));
cudaMemcpyToSymbol(c_PaddedMessage80, PaddedMessage, sizeof(PaddedMessage), 0, cudaMemcpyHostToDevice)
);
} }
__host__ __host__
void skein512_cpu_hash_80(int thr_id, uint32_t threads, uint32_t startNounce, uint32_t *d_hash, int swap) void skein512_cpu_hash_80(int thr_id, uint32_t threads, uint32_t startNounce, uint32_t *g_hash, int swap)
{ {
const uint32_t threadsperblock = 128; const uint32_t threadsperblock = 128;
dim3 grid((threads + threadsperblock-1)/threadsperblock); dim3 grid((threads + threadsperblock-1)/threadsperblock);
dim3 block(threadsperblock); dim3 block(threadsperblock);
// hash function is cut in 2 parts int dev_id = device_map[thr_id];
skein512_gpu_hash_80 <<< grid, block >>> (threads, startNounce, (uint64_t*)d_hash, swap); uint64_t *d_hash = (uint64_t*) g_hash;
skein512_gpu_hash_close <<< grid, block >>> (threads, startNounce, (uint64_t*)d_hash);
if (device_sm[dev_id] > 300 && cuda_arch[dev_id] > 300) {
// hash function is cut in 2 parts to reduce kernel size
skein512_gpu_hash_80 <<< grid, block >>> (threads, startNounce, d_hash, swap);
skein512_gpu_hash_close <<< grid, block >>> (threads, startNounce, d_hash);
} else {
// variant without uint2 variables
skein512_gpu_hash_80_sm3 <<< grid, block >>> (threads, startNounce, d_hash, swap);
skein512_gpu_hash_close_sm3 <<< grid, block >>> (threads, startNounce, d_hash);
}
} }

33
skein.cu
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@ -12,6 +12,8 @@
static uint32_t *d_hash[MAX_GPUS]; static uint32_t *d_hash[MAX_GPUS];
extern void quark_skein512_cpu_init(int thr_id, uint32_t threads);
extern void skein512_cpu_setBlock_80(void *pdata); extern void skein512_cpu_setBlock_80(void *pdata);
extern void skein512_cpu_hash_80(int thr_id, uint32_t threads, uint32_t startNounce, uint32_t *d_hash, int swap); extern void skein512_cpu_hash_80(int thr_id, uint32_t threads, uint32_t startNounce, uint32_t *d_hash, int swap);
@ -305,13 +307,15 @@ void sha2_gpu_hash_64(uint32_t threads, uint32_t startNounce, uint32_t *hashBuff
} }
__host__ __host__
void sha2_cpu_hash_64(int thr_id, uint32_t threads, uint32_t startNounce, uint32_t *d_outputHashes, int order) void sha2_cpu_hash_64(int thr_id, uint32_t threads, uint32_t startNounce, uint32_t *d_outputHashes)
{ {
uint32_t threadsperblock = 128; uint32_t threadsperblock = 128;
dim3 block(threadsperblock); dim3 block(threadsperblock);
dim3 grid((threads + threadsperblock - 1) / threadsperblock); dim3 grid((threads + threadsperblock - 1) / threadsperblock);
//cudaMemset(d_outputHashes, 0, 64 * threads);
sha2_gpu_hash_64 <<< grid, block >>>(threads, startNounce, d_outputHashes); sha2_gpu_hash_64 <<< grid, block >>>(threads, startNounce, d_outputHashes);
// required once per scan loop to prevent cpu 100% usage (linux)
MyStreamSynchronize(NULL, 0, thr_id); MyStreamSynchronize(NULL, 0, thr_id);
} }
@ -339,10 +343,11 @@ static __inline uint32_t swab32_if(uint32_t val, bool iftrue) {
static bool init[MAX_GPUS] = { 0 }; static bool init[MAX_GPUS] = { 0 };
extern "C" int scanhash_skeincoin(int thr_id, uint32_t *pdata, extern "C" int scanhash_skeincoin(int thr_id, uint32_t *pdata, const uint32_t *ptarget,
const uint32_t *ptarget, uint32_t max_nonce, uint32_t max_nonce, unsigned long *hashes_done)
unsigned long *hashes_done)
{ {
uint32_t _ALIGN(64) endiandata[20];
const uint32_t first_nonce = pdata[19]; const uint32_t first_nonce = pdata[19];
const int swap = 1; const int swap = 1;
@ -357,31 +362,33 @@ extern "C" int scanhash_skeincoin(int thr_id, uint32_t *pdata,
cudaDeviceReset(); cudaDeviceReset();
cudaSetDevice(device_map[thr_id]); cudaSetDevice(device_map[thr_id]);
CUDA_SAFE_CALL(cudaMalloc(&d_hash[thr_id], 64 * throughput)); cudaMalloc(&d_hash[thr_id], throughput * 64U);
quark_skein512_cpu_init(thr_id, throughput);
cuda_check_cpu_init(thr_id, throughput); cuda_check_cpu_init(thr_id, throughput);
CUDA_SAFE_CALL(cudaDeviceSynchronize());
init[thr_id] = true; init[thr_id] = true;
} }
uint32_t endiandata[20]; for (int k=0; k < 19; k++)
for (int k=0; k < 20; k++)
be32enc(&endiandata[k], pdata[k]); be32enc(&endiandata[k], pdata[k]);
skein512_cpu_setBlock_80((void*)endiandata); skein512_cpu_setBlock_80((void*)endiandata);
cuda_check_cpu_setTarget(ptarget); cuda_check_cpu_setTarget(ptarget);
do { do {
int order = 0;
*hashes_done = pdata[19] - first_nonce + throughput;
// Hash with CUDA // Hash with CUDA
skein512_cpu_hash_80(thr_id, throughput, pdata[19], d_hash[thr_id], swap); skein512_cpu_hash_80(thr_id, throughput, pdata[19], d_hash[thr_id], swap);
sha2_cpu_hash_64(thr_id, throughput, pdata[19], d_hash[thr_id], order++); sha2_cpu_hash_64(thr_id, throughput, pdata[19], d_hash[thr_id]);
*hashes_done = pdata[19] - first_nonce + throughput;
uint32_t foundNonce = cuda_check_hash(thr_id, throughput, pdata[19], d_hash[thr_id]); uint32_t foundNonce = cuda_check_hash(thr_id, throughput, pdata[19], d_hash[thr_id]);
if (foundNonce != UINT32_MAX) if (foundNonce != UINT32_MAX)
{ {
uint32_t vhash64[8]; uint32_t _ALIGN(64) vhash64[8];
endiandata[19] = swab32_if(foundNonce, swap); endiandata[19] = swab32_if(foundNonce, swap);
skeincoinhash(vhash64, endiandata); skeincoinhash(vhash64, endiandata);

13
skein2.cu
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@ -10,6 +10,8 @@
static uint32_t *d_hash[MAX_GPUS]; static uint32_t *d_hash[MAX_GPUS];
extern void quark_skein512_cpu_init(int thr_id, uint32_t threads);
extern void skein512_cpu_setBlock_80(void *pdata); extern void skein512_cpu_setBlock_80(void *pdata);
extern void skein512_cpu_hash_80(int thr_id, uint32_t threads, uint32_t startNounce, uint32_t *d_hash, int swap); extern void skein512_cpu_hash_80(int thr_id, uint32_t threads, uint32_t startNounce, uint32_t *d_hash, int swap);
@ -33,9 +35,8 @@ extern "C" void skein2hash(void *output, const void *input)
static bool init[MAX_GPUS] = { 0 }; static bool init[MAX_GPUS] = { 0 };
extern "C" int scanhash_skein2(int thr_id, uint32_t *pdata, extern "C" int scanhash_skein2(int thr_id, uint32_t *pdata, const uint32_t *ptarget,
const uint32_t *ptarget, uint32_t max_nonce, uint32_t max_nonce, unsigned long *hashes_done)
unsigned long *hashes_done)
{ {
const uint32_t first_nonce = pdata[19]; const uint32_t first_nonce = pdata[19];
@ -50,9 +51,13 @@ extern "C" int scanhash_skein2(int thr_id, uint32_t *pdata,
cudaDeviceReset(); cudaDeviceReset();
cudaSetDevice(device_map[thr_id]); cudaSetDevice(device_map[thr_id]);
CUDA_SAFE_CALL(cudaMalloc(&d_hash[thr_id], 64UL * throughput)); cudaMalloc(&d_hash[thr_id], throughput * 64U);
quark_skein512_cpu_init(thr_id, throughput);
cuda_check_cpu_init(thr_id, throughput); cuda_check_cpu_init(thr_id, throughput);
CUDA_SAFE_CALL(cudaDeviceSynchronize());
init[thr_id] = true; init[thr_id] = true;
} }

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