diff --git a/CMakeLists.txt b/CMakeLists.txt
new file mode 100644
index 0000000..aa3459f
--- /dev/null
+++ b/CMakeLists.txt
@@ -0,0 +1,27 @@
+cmake_minimum_required(VERSION 3.5)
+find_package(CUDA)
+find_package(PythonLibs 3.5 REQUIRED)
+
+include_directories(${PYTHON_INCLUDE_DIRS})
+
+if(UNIX)
+ SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -std=c++11 -O3")
+endif()
+
+set(CUDA_NVCC_FLAGS ${CUDA_NVCC_FLAGS};--disable-warnings;--ptxas-options=-v;-use_fast_math;-lineinfo)
+
+# Set the architecture of your CUDA card
+set(CUDA_NVCC_FLAGS ${CUDA_NVCC_FLAGS};-gencode=arch=compute_61,code=sm_61)
+
+
+list(APPEND CUDA_NVCC_FLAGS_RELEASE)
+
+cuda_add_library(bis SHARED
+ bisWrapper.cpp
+ bis.cu)
+
+target_link_libraries(bis
+ ${PYTHON_LIBRARIES}
+ ${CUDA_LIBRARIES})
+
+set_target_properties(bis PROPERTIES PREFIX "")
diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..37fb5c3
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,675 @@
+ GNU AFFERO GENERAL PUBLIC LICENSE
+ Version 3, 19 November 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc.
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+ Preamble
+
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+cooperation with the community in the case of network server software.
+
+ The licenses for most software and other practical works are designed
+to take away your freedom to share and change the works. By contrast,
+our General Public Licenses are intended to guarantee your freedom to
+share and change all versions of a program--to make sure it remains free
+software for all its users.
+
+ When we speak of free software, we are referring to freedom, not
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+have the freedom to distribute copies of free software (and charge for
+them if you wish), that you receive source code or can get it if you
+want it, that you can change the software or use pieces of it in new
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+
+ Developers that use our General Public Licenses protect your rights
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+IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+ 16. Limitation of Liability.
+
+ IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
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+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+ 17. Interpretation of Sections 15 and 16.
+
+ If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+ END OF TERMS AND CONDITIONS
+
+ How to Apply These Terms to Your New Programs
+
+ If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+ To do so, attach the following notices to the program. It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+
+ Copyright (C)
+
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU Affero General Public License as published
+ by the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU Affero General Public License for more details.
+
+ You should have received a copy of the GNU Affero General Public License
+ along with this program. If not, see .
+
+Also add information on how to contact you by electronic and paper mail.
+
+ If your software can interact with users remotely through a computer
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+
+ You should also get your employer (if you work as a programmer) or school,
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+For more information on this, and how to apply and follow the GNU AGPL, see
+.
+
+Copy license text to clipboard
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+How to apply this license
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+Create a text file (typically named LICENSE or LICENSE.txt) in the root of your source code and copy the text of the license into the file.
+Optional steps
+
+The Free Software Foundation recommends taking the additional step of adding a boilerplate notice to the top of each file. The boilerplate can be found at the end of the license.
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+Source
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..834e84c
--- /dev/null
+++ b/README.md
@@ -0,0 +1,30 @@
+# kbkminer
+GPU CUDA Miner for Bismuth.
+
+Install instructions (Linux):
+* Install Ubuntu 20.04 server on a PC with at least one Nvidia GPU, memory requirement on GPU at least 1075MiB.
+* Boot into the new server and do the following
+```sudo apt update```
+```sudo apt upgrade```
+```sudo reboot```
+* Write ```apt search nvidia-driver``` and find a suitable driver for your system.
+* In this example we choose the following: ```sudo apt install nvidia-headless-470-server``` When finished, reboot
+* ```sudo apt install nvidia-utils-470-server``` followed by ```nvidia-smi -q | grep "Product Name"``` Make sure that at least one GPU is detected.
+* ```git clone https://github.com/Bismuthfoundation/Bismuth.git``` followed by ```cd Bismuth```
+* ```sudo apt install python3-pip``` followed by ```pip3 install -r requirements-node.txt```
+* ```screen -mS node python3 node.py``` You need to wait a while for the Junction Noise file to be created and the ledger bootstrapped and synced. While you wait you can press ```Ctrl-A d```to detach from the screen session, and ```screen -r node``` to go back.
+* ```cd ~``` ```git clone https://github.com/Bismuthfoundation/Optipoolware.git```
+* ```cd Optipoolware``` ```pip3 install -r requirements.txt```
+* ```cp optipoolware.py ../Bismuth``` ```cp pool.txt ../Bismuth```
+* ```cd ~/Bismuth``` ```screen -mS pool python3 optipoolware.py``` You can press ```Ctrl-A d```to detach from the pool session, and ```screen -r pool``` to go back.
+* ```sudo apt install nvidia-cuda-toolkit``` followed by ```nvcc --version``` to check the version. In this example V10.1.243 was used.
+* ```cd ~``` ```git clone https://github.com/Bismuthfoundation/kbkminer.git```
+* ```sudo apt install cmake``` ```sudo apt install python3-pybind11```
+* ```cd kbkminer``` ```chmod u+x mycompile.sh``` ```./mycompile.sh```
+* Edit miner.txt to use your own miner_address
+* ```cp optihash.py ../Bismuth``` ```cp miner.txt ../Bismuth``` ```cp bis.so ../Bismuth```
+* Do not start the miner before the ledger is fully synced. The variable last_block_ago should be less than 300 seconds. Check with ```cd ~/Bismuth``` ```python3 commands.py statusget```
+* ```cd ~/Bismuth``` ```screen -mS miner python3 optihash.py``` You can press ```Ctrl-A d```to detach from the miner session, and ```screen -r miner``` to go back.
+
+
+Note that the pool will use the Bismuth address in the node wallet, found in the file wallet.der. If you want to solo mine, you can mine directly to this address by editing the file miner.txt and make the miner_address equal to the address in wallet.der. In this case, you can also edit min_payout in pool.txt to a large number to prevent payout transactions from the pool.
diff --git a/bis.cu b/bis.cu
new file mode 100644
index 0000000..3528ce4
--- /dev/null
+++ b/bis.cu
@@ -0,0 +1,565 @@
+#include "bis.h"
+
+#define SHA2_SHFR(x, n) (x >> n)
+#define SHA2_ROTR(x, n) ((x >> n) | (x << ((sizeof(x) << 3) - n)))
+#define SHA2_ROTL(x, n) ((x << n) | (x >> ((sizeof(x) << 3) - n)))
+#define SHA2_CH(x, y, z) ((x & (y ^ z)) ^ z) //form https://github.com/leocalm/Lyra/blob/master/GPU_attacks/yescryptCUDA/sha256.cu
+#define SHA2_MAJ(x, y, z) ((x & (y | z)) | (y & z)) //form https://github.com/leocalm/Lyra/blob/master/GPU_attacks/yescryptCUDA/sha256.cu
+
+char const hex_chars_small_h[] = { '0','1','2','3','4','5','6','7','8','9','a','b','c','d','e','f' };
+
+__device__ __host__ __forceinline__ uint32_t rotr(uint32_t x, uint32_t n) {
+#ifdef __CUDA_ARCH__
+ uint32_t result;
+ asm("shf.r.wrap.b32 %0, %1, %2, %3;" : "=r"(result) : "r"(x), "r"(x), "r"(n));
+ return result;
+#else
+ return SHA2_ROTR(x, n);
+#endif
+}
+
+#define SHA256_F1(x) (rotr(x, 2) ^ rotr(x, 13) ^ rotr(x, 22))
+#define SHA256_F2(x) (rotr(x, 6) ^ rotr(x, 11) ^ rotr(x, 25))
+#define SHA256_F3(x) (rotr(x, 7) ^ rotr(x, 18) ^ SHA2_SHFR(x, 3))
+#define SHA256_F4(x) (rotr(x, 17) ^ rotr(x, 19) ^ SHA2_SHFR(x, 10))
+
+#define SHA2_PACK32(str, x) \
+{ \
+ *(x) = ((uint32_t) *((str) + 3) ) \
+ | ((uint32_t) *((str) + 2) << 8) \
+ | ((uint32_t) *((str) + 1) << 16) \
+ | ((uint32_t) *((str) + 0) << 24); \
+}
+
+__device__ __constant__ uint32_t const sha256_k[64] = {
+ 0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5,
+ 0x3956c25b, 0x59f111f1, 0x923f82a4, 0xab1c5ed5,
+ 0xd807aa98, 0x12835b01, 0x243185be, 0x550c7dc3,
+ 0x72be5d74, 0x80deb1fe, 0x9bdc06a7, 0xc19bf174,
+ 0xe49b69c1, 0xefbe4786, 0x0fc19dc6, 0x240ca1cc,
+ 0x2de92c6f, 0x4a7484aa, 0x5cb0a9dc, 0x76f988da,
+ 0x983e5152, 0xa831c66d, 0xb00327c8, 0xbf597fc7,
+ 0xc6e00bf3, 0xd5a79147, 0x06ca6351, 0x14292967,
+ 0x27b70a85, 0x2e1b2138, 0x4d2c6dfc, 0x53380d13,
+ 0x650a7354, 0x766a0abb, 0x81c2c92e, 0x92722c85,
+ 0xa2bfe8a1, 0xa81a664b, 0xc24b8b70, 0xc76c51a3,
+ 0xd192e819, 0xd6990624, 0xf40e3585, 0x106aa070,
+ 0x19a4c116, 0x1e376c08, 0x2748774c, 0x34b0bcb5,
+ 0x391c0cb3, 0x4ed8aa4a, 0x5b9cca4f, 0x682e6ff3,
+ 0x748f82ee, 0x78a5636f, 0x84c87814, 0x8cc70208,
+ 0x90befffa, 0xa4506ceb, 0xbef9a3f7, 0xc67178f2
+};
+
+uint32_t const sha256_k_cpu[64] = {
+ 0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5,
+ 0x3956c25b, 0x59f111f1, 0x923f82a4, 0xab1c5ed5,
+ 0xd807aa98, 0x12835b01, 0x243185be, 0x550c7dc3,
+ 0x72be5d74, 0x80deb1fe, 0x9bdc06a7, 0xc19bf174,
+ 0xe49b69c1, 0xefbe4786, 0x0fc19dc6, 0x240ca1cc,
+ 0x2de92c6f, 0x4a7484aa, 0x5cb0a9dc, 0x76f988da,
+ 0x983e5152, 0xa831c66d, 0xb00327c8, 0xbf597fc7,
+ 0xc6e00bf3, 0xd5a79147, 0x06ca6351, 0x14292967,
+ 0x27b70a85, 0x2e1b2138, 0x4d2c6dfc, 0x53380d13,
+ 0x650a7354, 0x766a0abb, 0x81c2c92e, 0x92722c85,
+ 0xa2bfe8a1, 0xa81a664b, 0xc24b8b70, 0xc76c51a3,
+ 0xd192e819, 0xd6990624, 0xf40e3585, 0x106aa070,
+ 0x19a4c116, 0x1e376c08, 0x2748774c, 0x34b0bcb5,
+ 0x391c0cb3, 0x4ed8aa4a, 0x5b9cca4f, 0x682e6ff3,
+ 0x748f82ee, 0x78a5636f, 0x84c87814, 0x8cc70208,
+ 0x90befffa, 0xa4506ceb, 0xbef9a3f7, 0xc67178f2
+};
+
+template
+__device__ __host__ __forceinline__ void memset_simple12(T* arr, T2 val) {
+#pragma unroll 12
+ for (uint32_t i = 0; i < 12; i++) {
+ arr[i] = val;
+ }
+}
+
+__device__ __host__ __forceinline__ void sha224_init(uint32_t* m_h) {
+ m_h[0] = 0xc1059ed8;
+ m_h[1] = 0x367cd507;
+ m_h[2] = 0x3070dd17;
+ m_h[3] = 0xf70e5939;
+ m_h[4] = 0xffc00b31;
+ m_h[5] = 0x68581511;
+ m_h[6] = 0x64f98fa7;
+ m_h[7] = 0xbefa4fa4;
+}
+
+__device__ __forceinline__ void transform(const uint32_t* message_int, uint32_t* m_h) {
+ uint32_t w[64];
+ uint32_t wv[8];
+ uint32_t t1, t2;
+
+#pragma unroll 16
+ for (uint32_t j = 0; j < 16; j++) {
+ w[j] = message_int[j];
+ }
+
+#pragma unroll 48
+ for (uint32_t j = 16; j < 64; j++) {
+ w[j] = SHA256_F4(w[j - 2]) + w[j - 7] + SHA256_F3(w[j - 15]) + w[j - 16];
+ }
+#pragma unroll 8
+ for (uint32_t j = 0; j < 8; j++) {
+ wv[j] = m_h[j];
+ }
+#pragma unroll 64
+ for (uint32_t j = 0; j < 64; j++) {
+ t1 = wv[7] + SHA256_F2(wv[4]) + SHA2_CH(wv[4], wv[5], wv[6])
+ + sha256_k[j] + w[j];
+ t2 = SHA256_F1(wv[0]) + SHA2_MAJ(wv[0], wv[1], wv[2]);
+ wv[7] = wv[6];
+ wv[6] = wv[5];
+ wv[5] = wv[4];
+ wv[4] = wv[3] + t1;
+ wv[3] = wv[2];
+ wv[2] = wv[1];
+ wv[1] = wv[0];
+ wv[0] = t1 + t2;
+ }
+#pragma unroll 8
+ for (uint32_t j = 0; j < 8; j++) {
+ m_h[j] += wv[j];
+ }
+}
+
+void transform_cpu(const uint32_t* message_int, uint32_t* m_h) {
+ uint32_t w[64];
+ uint32_t wv[8];
+ uint32_t t1, t2;
+
+ for (uint32_t j = 0; j < 16; j++) {
+ w[j] = message_int[j];
+ }
+
+ for (uint32_t j = 16; j < 64; j++) {
+ w[j] = SHA256_F4(w[j - 2]) + w[j - 7] + SHA256_F3(w[j - 15]) + w[j - 16];
+ }
+
+ for (uint32_t j = 0; j < 8; j++) {
+ wv[j] = m_h[j];
+ }
+
+ for (uint32_t j = 0; j < 64; j++) {
+ t1 = wv[7] + SHA256_F2(wv[4]) + SHA2_CH(wv[4], wv[5], wv[6])
+ + sha256_k_cpu[j] + w[j];
+ t2 = SHA256_F1(wv[0]) + SHA2_MAJ(wv[0], wv[1], wv[2]);
+ wv[7] = wv[6];
+ wv[6] = wv[5];
+ wv[5] = wv[4];
+ wv[4] = wv[3] + t1;
+ wv[3] = wv[2];
+ wv[2] = wv[1];
+ wv[1] = wv[0];
+ wv[0] = t1 + t2;
+ }
+
+ for (uint32_t j = 0; j < 8; j++) {
+ m_h[j] += wv[j];
+ }
+}
+
+__device__ __forceinline__ void transform_sep_nonce(const uint32_t* message_int, const uint32_t* nonce, uint32_t* m_h) {
+ uint32_t w[64];
+ uint32_t wv[8];
+ uint32_t t1, t2;
+
+#pragma unroll 4
+ for (int j = 0; j < 4; j++) {
+ w[j] = message_int[j];
+ }
+#pragma unroll 10
+ for (int j = 6; j < 16; j++) {
+ w[j] = message_int[j];
+ }
+
+ w[4] = nonce[0];
+ w[5] = nonce[1];
+
+#pragma unroll 48
+ for (int j = 16; j < 64; j++) {
+ w[j] = SHA256_F4(w[j - 2]) + w[j - 7] + SHA256_F3(w[j - 15]) + w[j - 16];
+ }
+#pragma unroll 8
+ for (int j = 0; j < 8; j++) {
+ wv[j] = m_h[j];
+ }
+#pragma unroll 64
+ for (int j = 0; j < 64; j++) {
+ t1 = wv[7] + SHA256_F2(wv[4]) + SHA2_CH(wv[4], wv[5], wv[6])
+ + sha256_k[j] + w[j];
+ t2 = SHA256_F1(wv[0]) + SHA2_MAJ(wv[0], wv[1], wv[2]);
+ wv[7] = wv[6];
+ wv[6] = wv[5];
+ wv[5] = wv[4];
+ wv[4] = wv[3] + t1;
+ wv[3] = wv[2];
+ wv[2] = wv[1];
+ wv[1] = wv[0];
+ wv[0] = t1 + t2;
+ }
+#pragma unroll 8
+ for (int j = 0; j < 8; j++) {
+ m_h[j] += wv[j];
+ }
+}
+
+__device__ __forceinline__ void sha224_final(uint32_t* m_block, uint32_t* m_h) {
+ memset_simple12(m_block + 16 / 4, 0);
+ m_block[16 / 4] = m_block[16 / 4] | 0x80000000;
+ m_block[60 / 4] = 1152;
+ transform(m_block, m_h);
+}
+
+__device__ __forceinline__ void modNonce(const uint32_t* nonce, uint32_t* new_nonce, uint32_t const th_id) {
+ char const hex_chars_small[] = { '0','1','2','3','4','5','6','7','8','9','a','b','c','d','e','f' };
+ new_nonce[0] = 0;
+
+ uint8_t chIdx = (uint8_t)(th_id & 0xF);
+ uint32_t val = (uint32_t)hex_chars_small[chIdx];
+ new_nonce[0] = new_nonce[0] | (val << 24); // 0xXX000000
+
+ chIdx = (uint8_t)((th_id >> 4) & 0xF);
+ val = (uint32_t)hex_chars_small[chIdx];
+ new_nonce[0] = new_nonce[0] | (val << 16); // 0xXXXX0000
+
+ chIdx = (uint8_t)((th_id >> 8) & 0xF);
+ val = (uint32_t)hex_chars_small[chIdx];
+ new_nonce[0] = new_nonce[0] | (val << 8); // 0xXXXXXX00
+
+ chIdx = (uint8_t)((th_id >> 12) & 0xF);
+ val = (uint32_t)hex_chars_small[chIdx];
+ new_nonce[0] = new_nonce[0] | val; // 0xXXXXXXXX
+
+
+ new_nonce[1] = nonce[5] & 0x0000FFFF;
+ chIdx = (uint8_t)((th_id >> 16) & 0xF);
+ val = (uint32_t)hex_chars_small[chIdx];
+ new_nonce[1] = new_nonce[1] | (val << 24); // 0xXX00????
+
+ chIdx = (uint8_t)((th_id >> 20) & 0xF);
+ val = (uint32_t)hex_chars_small[chIdx];
+ new_nonce[1] = new_nonce[1] | (val << 16); // 0xXXXX????
+}
+
+void modNonceCpu(unsigned char* nonce, uint32_t const th_id) {
+ unsigned char chIdx = (th_id & 0xF);
+ uint8_t i = 24;
+
+ chIdx = (uint8_t)(th_id & 0xF);
+ nonce[i] = hex_chars_small_h[chIdx]; // 0xXX000000
+
+ chIdx = (uint8_t)((th_id >> 4) & 0xF);
+ i++;
+ nonce[i] = hex_chars_small_h[chIdx]; // 0xXXXX0000
+
+ chIdx = (uint8_t)((th_id >> 8) & 0xF);
+ i++;
+ nonce[i] = hex_chars_small_h[chIdx]; // 0xXXXXXX00
+
+ chIdx = (uint8_t)((th_id >> 12) & 0xF);
+ i++;
+ nonce[i] = hex_chars_small_h[chIdx]; // 0xXXXXXXXX
+
+ chIdx = (uint8_t)((th_id >> 16) & 0xF);
+ i++;
+ nonce[i] = hex_chars_small_h[chIdx]; // 0xXX00????
+
+ chIdx = (uint8_t)((th_id >> 20) & 0xF);
+ i++;
+ nonce[i] = hex_chars_small_h[chIdx]; // 0xXXXX????
+}
+
+__device__ __forceinline__ void shiftLeft4Bytes7Ints(uint32_t* uintArr) {
+#pragma unroll 6
+ for (int i = 0; i < 6; i++) {
+ uintArr[i] = uintArr[i] << 4;
+
+ uintArr[i] = uintArr[i] | (uintArr[i + 1] >> 28);
+ }
+ uintArr[6] = uintArr[6] << 4;
+}
+
+__device__ __forceinline__ void anneal3(const uint32_t* map, uint32_t* hash) {
+ int index = ((hash[6] & ~0x7) % RND_LEN) + 6;
+#pragma unroll
+ for (int i = 0; i < 7; ++i) {
+ hash[i] ^= map[index - i];
+ }
+}
+
+__global__ void sha224_find(const uint32_t* message_int, uint32_t* hash, uint32_t* mining_cond, const int32_t tail_length_in_chars, uint32_t* map, uint32_t* nonce_found_on_th_id) {
+ uint32_t const one_pad_x_chars_lsb_constants_loc[] = { 0x0, 0xF, 0xFF, 0xFFF, 0xFFFF, 0xFFFFF, 0xFFFFFF, 0xFFFFFFF, 0xFFFFFFFF };
+ uint32_t const th_id = blockIdx.x * blockDim.x + threadIdx.x;
+
+ uint32_t nonce_local[2];
+ __shared__ uint32_t message_int_16_to_36[20];
+ uint32_t m_block[SHA224_256_BLOCK_SIZE / 4];
+ uint32_t hash_local[8];
+ uint32_t sum = 0;
+ uint32_t rightPadOfHashForLastCondition = one_pad_x_chars_lsb_constants_loc[tail_length_in_chars];
+ uint32_t mining_cond_local[N_32BITS_IN_MINING_CONDITION];
+
+
+ if ((threadIdx.x > 15) && (threadIdx.x < 36)) {
+ message_int_16_to_36[threadIdx.x - 16] = message_int[threadIdx.x];
+ }
+ __syncthreads();
+
+ //Local copy of message
+#pragma unroll 8
+ for (int i = 0; i < 8; i++) { hash_local[i] = hash[i]; }
+
+ //Randomize message by editing nonce
+ modNonce((const uint32_t*)&message_int_16_to_36[0], nonce_local, th_id);
+
+ //Update
+ transform_sep_nonce((const uint32_t*)message_int_16_to_36, nonce_local, hash_local);
+
+#pragma unroll 4
+ for (int i = 0; i < 4; i++) {
+ m_block[i] = message_int_16_to_36[16 + i];
+ }
+ //EO UPDATE
+
+ //Final
+ sha224_final(m_block, hash_local);
+
+
+ //Anneal3
+ anneal3(map, hash_local);
+ //Eo anneal3
+
+ //copy mining condition local
+#pragma unroll 2
+ for (uint32_t i = 0; i < 2; i++) { mining_cond_local[i] = mining_cond[i]; }
+
+#pragma unroll 8
+ for (int shifts = 0; shifts < 8; shifts++) {
+#pragma unroll 6
+ for (int h_i = 0; h_i < 6; h_i++) {
+ sum = 0;
+ sum = sum | (hash_local[h_i] ^ mining_cond_local[0]);
+ int h1 = (hash_local[h_i + 1] | rightPadOfHashForLastCondition);
+ sum = sum | (h1 ^ mining_cond_local[1]);
+ if (sum == 0) {
+ *nonce_found_on_th_id = th_id;
+ }
+ }
+ shiftLeft4Bytes7Ints(hash_local);
+ }
+}
+
+std::string nonceFromThreadId(std::string nonce, uint32_t th_id) {
+ unsigned char nonce_buf[32];
+ for (int ii = 0; ii < 32; ii++) { nonce_buf[ii] = nonce[ii]; }
+ modNonceCpu(nonce_buf, th_id);
+ for (int ii = 0; ii < 32; ii++) { nonce[ii] = nonce_buf[ii]; }
+ return nonce;
+}
+
+uint32_t StringToInts(std::string hex_str, uint32_t* ret, bool onePad = true) {
+ //pad with 0's
+ while (hex_str.length() % 8 != 0) {
+ if (onePad) {
+ hex_str = hex_str + "f";
+ }
+ else {
+ hex_str = hex_str + "0";
+ }
+ }
+
+ int len = 0;
+ for (unsigned i = 0; i < hex_str.length(); i += 8) {
+ std::string hex32_numb = hex_str.substr(i, 8);
+ unsigned int x = std::stoul(hex32_numb, nullptr, 16);
+ ret[len] = x;
+ len++;
+ }
+ return len;
+}
+
+void cur(cudaError_t error) {
+ if (error != cudaSuccess) {
+ std::cout << cudaGetErrorString(error);
+ throw std::runtime_error(cudaGetErrorString(error));
+ }
+}
+
+int32_t BisCuda::GetNumDevices() {
+ int32_t deviceCount = -1;
+ cudaError_t err = cudaGetDeviceCount(&deviceCount);
+ if (err == cudaSuccess)
+ return deviceCount;
+
+ if (err == cudaErrorInsufficientDriver) {
+ int driverVersion = -1;
+ cudaDriverGetVersion(&driverVersion);
+ if (driverVersion == 0)
+ throw std::runtime_error{ "No CUDA driver found" };
+ throw std::runtime_error{ "Insufficient CUDA driver: " + std::to_string(driverVersion) };
+ }
+
+ throw std::runtime_error{ cudaGetErrorString(err) };
+}
+
+void packMsg(const unsigned char* message, uint32_t* msg_int) {
+ for (int j = 0; j < 144 / 4; j++) {
+ SHA2_PACK32(&message[j << 2], &msg_int[j]);
+ }
+}
+
+std::string BisCuda::GenerateNonce_DoNotCall() {
+ std::string nonce = "";
+ for (int i = 0; i < 32; i++) {
+
+ nonce += hex_chars_small_h[rand() % 16];
+ }
+ return nonce;
+}
+
+void BisCuda::ResetAllDevices() {
+ int nDev = GetNumDevices();
+ for (int dev_id = 0; dev_id < nDev; dev_id++) {
+ cur(cudaSetDevice(dev_id));
+ cur(cudaDeviceReset());
+ }
+}
+
+void BisCuda::Init() {
+ n_devices = GetNumDevices();
+
+ //Load MAP
+ cur(cudaMallocHost(&map_host, map_size));
+ printf("Loading heavy3a.bin into memory\n");
+ FILE* in_file = fopen("heavy3a.bin", "rb");
+ if (in_file != NULL) {
+ fread(map_host, BIN_SIZE, 1, in_file);
+ fclose(in_file);
+ printf("Loaded heavy3a.bin");
+ }
+ else {
+ printf("Could not load heavy3a.bin, exiting..");
+ exit(0);
+ }
+ //EO load map
+
+ //This is only first time "random" initial values, will be overwritten by the next call to Update
+ Update("ddf74f55fb386d29037b010966d2424268a5efc6c8be2b8c6c9c9de9", "25293edc281c3de8ecd41047ea01288603c5aafa13f8f73c15b7871", "7cd4ab66b1a");
+
+ for (uint32_t dev_id = 0; dev_id < n_devices; dev_id++) {
+ InitDevice(dev_id);
+ }
+}
+
+void BisCuda::InitDevice(uint32_t dev_id) {
+ cur(cudaSetDevice(dev_id));
+
+ cur(cudaMalloc(&mining_cond_uint_dev[dev_id], mining_cond_uint_size));
+ cur(cudaMalloc(&nonce_found_on_th_id_dev[dev_id], sizeof(uint32_t)));
+ cur(cudaMalloc(&hash_dev[dev_id], m_h_size));
+ cur(cudaMalloc(&message_int_dev[dev_id], msg_int_size));
+
+ cur(cudaMallocHost((void**)&nonce_found_on_th_id_host[dev_id], sizeof(uint32_t)));
+ cur(cudaMallocHost((void**)&message_int_host[dev_id], msg_int_size));
+ cur(cudaMallocHost((void**)&hash_host[dev_id], msg_int_size));
+
+ //Map
+ cur(cudaMalloc(&map_dev[dev_id], map_size));
+ cur(cudaMemcpy(map_dev[dev_id], map_host, map_size, cudaMemcpyHostToDevice));
+
+}
+
+void BisCuda::DeletePointers() {
+ for (uint32_t i = 0; i < n_devices; i++) {
+ // Device
+ cur(cudaFree(mining_cond_uint_dev[i]));
+ cur(cudaFree(message_int_dev[i]));
+ cur(cudaFree(hash_dev[i]));
+ cur(cudaFree(nonce_found_on_th_id_dev[i]));
+
+ // Host
+ cur(cudaFreeHost(nonce_found_on_th_id_host[i]));
+ cur(cudaFreeHost(message_int_host[i]));
+ cur(cudaFreeHost(hash_host[i]));
+ }
+}
+
+void BisCuda::Update(std::string address, std::string db_block_hash, std::string mining_condition_hex_string) {
+ address_h = address;
+ db_block_hash_h = db_block_hash;
+ GenerateNonces();
+
+ //Convert mining condition to int 32
+ mining_cond_uint_host[0] = 0xFFFFFFFF;
+ mining_cond_uint_host[1] = 0xFFFFFFFF;
+ mining_condition_n_ints = StringToInts(mining_condition_hex_string, mining_cond_uint_host);
+ tail_length_in_chars_host = 8 - (mining_condition_hex_string.length() % 8);
+ if (tail_length_in_chars_host == 8) { tail_length_in_chars_host = 0; }
+
+ for (uint32_t dev_id = 0; dev_id < n_devices; dev_id++) {
+ shouldUpdateDevices[dev_id] = true;
+ }
+}
+
+void BisCuda::UpdateDevice(uint32_t dev_id, bool set_device = true) {
+ if (set_device) {
+ cur(cudaSetDevice(dev_id));
+ }
+
+ //Update message with new noce (this must be done each loop in order to find new solutions on a new message)
+ nonce_h[dev_id] = GetNonce();
+ message_string[dev_id] = address_h + nonce_h[dev_id] + db_block_hash_h;
+
+ if (shouldUpdateDevices[dev_id]) {
+ cur(cudaMemcpy(mining_cond_uint_dev[dev_id], mining_cond_uint_host, mining_cond_uint_size, cudaMemcpyHostToDevice));
+ shouldUpdateDevices[dev_id] = false;
+ }
+
+ packMsg((const unsigned char*)message_string[dev_id].c_str(), message_int_host[dev_id]);
+ sha224_init(hash_host[dev_id]);
+ transform_cpu(message_int_host[dev_id], hash_host[dev_id]);
+ cur(cudaMemcpy(message_int_dev[dev_id], message_int_host[dev_id], msg_int_size, cudaMemcpyHostToDevice));
+ cur(cudaMemcpy(hash_dev[dev_id], hash_host[dev_id], m_h_size, cudaMemcpyHostToDevice));
+}
+
+void BisCuda::StartAllGPUs() {
+ run_threads = true;
+ for (uint32_t dev_id = 0; dev_id < n_devices; dev_id++) {
+ threads[dev_id] = std::thread(&BisCuda::LoopDeviceThread, this, dev_id);
+ }
+}
+
+void BisCuda::LoopDeviceThread(uint32_t dev_id) {
+ cur(cudaSetDevice(dev_id));
+ while (run_threads) {
+ //Update device each loop, in order to generate new nonces and messages
+ UpdateDevice(dev_id, false);
+ LoopDevice(dev_id, false);
+ n_hashes_executed += N_THREADS;
+ }
+}
+
+void BisCuda::LoopDevice(uint32_t dev_id, bool set_device = true) {
+ if (set_device) {
+ cur(cudaSetDevice(dev_id));
+ }
+
+ *nonce_found_on_th_id_host[dev_id] = 0xFFFFFFFF;
+ cur(cudaMemcpy(nonce_found_on_th_id_dev[dev_id], nonce_found_on_th_id_host[dev_id], sizeof(uint32_t), cudaMemcpyHostToDevice));
+
+ sha224_find << > > (message_int_dev[dev_id], hash_dev[dev_id], mining_cond_uint_dev[dev_id], tail_length_in_chars_host, map_dev[dev_id], nonce_found_on_th_id_dev[dev_id]);
+
+ cudaDeviceSynchronize();
+
+ cur(cudaMemcpy(nonce_found_on_th_id_host[dev_id], nonce_found_on_th_id_dev[dev_id], sizeof(uint32_t), cudaMemcpyDeviceToHost));
+
+ if (*nonce_found_on_th_id_host[dev_id] != 0xFFFFFFFF) {
+ std::string validNonce = nonceFromThreadId(nonce_h[dev_id], *nonce_found_on_th_id_host[dev_id]) + "\n";
+ ValidNoncesAdd(validNonce);
+ std::cout << "\nNonce found!" << std::flush;
+ }
+}
diff --git a/bis.h b/bis.h
new file mode 100644
index 0000000..130ee1e
--- /dev/null
+++ b/bis.h
@@ -0,0 +1,191 @@
+#ifndef BIS_H
+#define BIS_H
+#include "cuda_runtime.h"
+#include "device_launch_parameters.h"
+#include "stdio.h"
+
+#ifndef _WIN32
+#include
+#endif
+
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+
+#define SHA224_256_BLOCK_SIZE 64 //512/8
+#define SHA224_DIGEST_SIZE 28 //(224/8)
+#define MAX_GPUS 10
+#define N_32BITS_IN_MINING_CONDITION 2 //32bit*2 = 64bit max length on mining condition (This must be changed if difficulty if more that 128 bits)
+#define N_THREADS_PER_BLOCK 512
+#define N_BLOCKS 32768
+#define N_THREADS (N_THREADS_PER_BLOCK * N_BLOCKS)
+
+#define BIN_SIZE 1073741824
+#define RND_LEN ( BIN_SIZE / 4 )
+
+class BisCuda {
+private:
+
+ //Device
+ uint32_t* mining_cond_uint_dev[MAX_GPUS];
+ uint32_t* nonce_found_on_th_id_dev[MAX_GPUS];
+ uint32_t* message_int_dev[MAX_GPUS];
+
+ uint32_t* map_dev[MAX_GPUS];
+
+ //Host
+ uint32_t* map_host = NULL; // Only one map file is needed for host
+ uint32_t map_size = BIN_SIZE;
+
+ uint32_t* nonce_found_on_th_id_host[MAX_GPUS]; //1 element
+ uint32_t* message_int_host[MAX_GPUS]; //36 elements
+ uint32_t msg_int_size = 36 * sizeof(uint32_t);
+ uint32_t* hash_host[MAX_GPUS]; //8 elements
+ uint32_t m_h_size = 8 * sizeof(uint32_t);
+ uint32_t* hash_dev[MAX_GPUS];
+
+ void SetPointersToNULL() {
+ for (int i = 0; i < MAX_GPUS; i++) {
+ mining_cond_uint_dev[i] = NULL;
+ nonce_found_on_th_id_dev[i] = NULL;
+ message_int_dev[i] = NULL;
+ hash_dev[i] = NULL;
+
+ nonce_found_on_th_id_host[i] = NULL;
+ message_int_host[i] = NULL;
+ hash_host[i] = NULL;
+ }
+ }
+
+ //Host variables
+ std::thread threads[MAX_GPUS];
+ bool run_threads;
+ bool shouldUpdateDevices[MAX_GPUS];
+
+
+ uint32_t n_devices; //Set in init
+
+ std::string address_h;
+ std::string db_block_hash_h;
+ std::string nonce_h[MAX_GPUS];
+ std::string message_string[MAX_GPUS];
+
+ uint32_t mining_cond_uint_host[N_32BITS_IN_MINING_CONDITION];
+ uint32_t mining_cond_uint_size = sizeof(uint32_t) * N_32BITS_IN_MINING_CONDITION;
+ uint32_t mining_condition_n_ints;
+ uint32_t tail_length_in_chars_host;
+
+ std::mutex mtx_nonce_valid;
+ std::mutex mtx_nonce;
+ std::string valid_nonces; //DO not call directly!!
+
+ std::stack nonces_h_do_not_modify;
+ std::atomic n_hashes_executed{ 0 };
+
+ void GenNoncesOnlyMutexCall() {
+ if (nonces_h_do_not_modify.size() > MAX_GPUS * 200) { return; }
+ while (nonces_h_do_not_modify.size() < (MAX_GPUS * 500)) {
+ nonces_h_do_not_modify.push(GenerateNonce_DoNotCall());
+ }
+ }
+
+ void GenerateNonces() {
+ mtx_nonce.lock();
+ GenNoncesOnlyMutexCall();
+ mtx_nonce.unlock();
+ }
+
+ std::string GetNonce() {
+ mtx_nonce.lock();
+ if (nonces_h_do_not_modify.size() == 0) {
+ GenNoncesOnlyMutexCall();
+ }
+ std::string n = nonces_h_do_not_modify.top();
+ nonces_h_do_not_modify.pop();
+ mtx_nonce.unlock();
+ return n;
+ }
+
+ void ValidNoncesAdd(std::string nonces) {
+ mtx_nonce_valid.lock();
+ //Do not keep adding indefinitely. It is cleared by calling ValidNoncesGet
+ if (valid_nonces.size() < 10000000) {
+ valid_nonces += nonces;
+ }
+ mtx_nonce_valid.unlock();
+ }
+
+ int32_t GetNumDevices();
+ void InitDevice(uint32_t dev_id); //This is called from init for all devices
+ void UpdateDevice(uint32_t dev_id, bool use_device_id); //If use_device_id is false, device is not set in method
+ void LoopDevice(uint32_t dev_id, bool set_device);
+ void LoopDeviceThread(uint32_t dev_id);
+ void Init();
+ void StartAllGPUs();
+ void DeletePointers();
+
+ std::string GenerateNonce_DoNotCall(); //Shold only be called from GenerateNonces() due to thread safety
+
+public:
+
+ BisCuda() {
+#ifdef _WIN32
+ srand((uint32_t)time(NULL)); //Psudo random generator to update seed
+#else
+
+ struct timeval tv1;
+ gettimeofday(&tv1, NULL);
+ int seed_val = (int)tv1.tv_usec;
+ srand(seed_val);
+ std::cout << "Seeding with value tv_usec: " << std::to_string(seed_val) << "\n" << std::flush;
+#endif
+
+ GenerateNonces();
+ SetPointersToNULL();
+ Init();
+ StartAllGPUs();
+ }
+
+ ~BisCuda() {
+ run_threads = false;
+ for (uint32_t i = 0; i < n_devices; i++) {
+ if (&threads[i] != NULL) {
+ threads[i].join();
+ }
+ }
+ DeletePointers();
+
+ std::cout << "\nBisCuda exited\n" << std::flush;
+ }
+
+ void ResetAllDevices();
+ void Update(std::string address, std::string db_block_hash, std::string mining_condition_hex_string);
+
+ uint64_t GetNumerOfHashesSinceLastCall() {
+ uint64_t h = n_hashes_executed;
+ n_hashes_executed = 0;
+ return h;
+ }
+
+ uint32_t ValidNoncesAvailable() {
+ return (uint32_t)valid_nonces.length();
+ }
+
+ std::string ValidNoncesGet() {
+ mtx_nonce_valid.lock();
+ std::string valid_nonces_cpy = valid_nonces;
+ valid_nonces.clear();
+ mtx_nonce_valid.unlock();
+ return valid_nonces_cpy;
+ }
+};
+#endif
diff --git a/bisWrapper.cpp b/bisWrapper.cpp
new file mode 100644
index 0000000..f2b98d7
--- /dev/null
+++ b/bisWrapper.cpp
@@ -0,0 +1,17 @@
+#include
+#include
+#include
+#include
+#include
+#include
+#include "bis.h"
+
+namespace py = pybind11;
+PYBIND11_MODULE(bis, m) {
+ py::class_(m, "BisCuda")
+ .def(py::init())
+ .def("ValidNoncesAvailable", &BisCuda::ValidNoncesAvailable)
+ .def("ValidNoncesGet", &BisCuda::ValidNoncesGet)
+ .def("Update", &BisCuda::Update)
+ .def("GetNumerOfHashesSinceLastCall", &BisCuda::GetNumerOfHashesSinceLastCall);
+}
diff --git a/miner.txt b/miner.txt
new file mode 100644
index 0000000..00feb9f
--- /dev/null
+++ b/miner.txt
@@ -0,0 +1,9 @@
+port=8525
+mining_ip=127.0.0.1
+mining_threads=1
+tor=0
+miner_address=0a83f9b7aa6dabf986ab2f81c857d036c47e367940dc49093873614d
+max_diff=150
+miner_name=cuda_gpu
+nonce_time=10
+hashcount=20000
diff --git a/mycompile.sh b/mycompile.sh
new file mode 100644
index 0000000..c13f4bb
--- /dev/null
+++ b/mycompile.sh
@@ -0,0 +1,7 @@
+#!/bin/bash
+export CC=/usr/bin/gcc-8
+export CXX=/usr/bin/g++-8
+rm -rf CMakeFiles
+rm CMakeCache.txt
+cmake .
+make
diff --git a/optihash.py b/optihash.py
new file mode 100644
index 0000000..e641426
--- /dev/null
+++ b/optihash.py
@@ -0,0 +1,203 @@
+# optihash.py v 0.31-cuda to be used with Python3.5 or better
+# CUDA GPU-miner for Optipoolware based pool mining only
+# Copyright Hclivess, Primedigger, Maccaspacca, SylvainDeaure 2017
+# kbk and geho2, 2021
+# .
+
+import time, socks, connections, sys, os, math
+from multiprocessing import Process, freeze_support, Queue
+from random import getrandbits
+from hashlib import sha224
+
+import mining_heavy3 as mining
+
+#Added by kbk
+import bis # CUDA code
+from datetime import datetime
+
+def cuda_to_nonce_arr(string):
+ elements = string.splitlines()
+ newEl = []
+ for el in elements:
+ if len(el) > 30:
+ newEl.append(el)
+ return newEl
+#eo added by kbk
+
+__version__ = '0.3.1-cuda'
+
+# load config
+lines = [line.rstrip('\n') for line in open('miner.txt')]
+for line in lines:
+ if "port=" in line:
+ port = line.split('=')[1]
+ if "mining_ip=" in line:
+ mining_ip_conf = line.split('=')[1]
+ if "mining_threads=" in line:
+ mining_threads_conf = line.strip('mining_threads=')
+ if "tor=" in line:
+ tor_conf = int(line.strip('tor='))
+ if "miner_address=" in line:
+ self_address = line.split('=')[1]
+ if "nonce_time=" in line:
+ nonce_time = int(line.split('=')[1])
+ if "miner_name=" in line:
+ mname = line.split('=')[1]
+ if "hashcount=" in line:
+ hashcount = int(line.split('=')[1])
+
+# load config
+
+bin_format_dict = dict((x, format(ord(x), '8b').replace(' ', '0')) for x in '0123456789abcdef')
+
+
+def bin_convert(string):
+ return ''.join(bin_format_dict[x] for x in string)
+
+
+def bin_convert_orig(string):
+ return ''.join(format(ord(x), '8b').replace(' ', '0') for x in string)
+
+
+def diffme(pool_address, nonce, db_block_hash):
+ # minimum possible diff
+ diff = 60
+ # will return 0 for diff < 60
+ diff_result = 0
+ mining_hash = bin_convert(sha224((pool_address + nonce + db_block_hash).encode("utf-8")).hexdigest())
+ mining_condition = bin_convert(db_block_hash)
+ while mining_condition[:diff] in mining_hash:
+ diff_result = diff
+ diff += 1
+ return diff_result
+
+
+def miner(q, pool_address, db_block_hash, diff, mining_condition, netdiff, hq, thr, dh, bisCuda): # Added by kbk
+ process_mmap = False
+ if not mining.RND_LEN:
+ mining.mining_open()
+ process_mmap = True
+ try:
+ tries = 0
+ try_arr = [('%0x' % getrandbits(32)) for i in range(nonce_time*hashcount)]
+ address = pool_address
+ timeout = time.time() + nonce_time
+ while time.time() < timeout:
+ try:
+ t1 = time.time()
+ tries = tries + 1
+
+ # Added by kbk, wait for nonces
+ possibles=[]
+ time.sleep(0.25)
+
+ nonces_cu = bisCuda.ValidNoncesGet()
+ possibles = cuda_to_nonce_arr(nonces_cu)
+ #eo added by kbk
+
+ if possibles:
+ for nonce in possibles:
+ xdiffx = mining.diffme_heavy3(address, nonce, db_block_hash)
+ if xdiffx < diff:
+ print("---> Diff too low in nonce from GPU <----")
+ pass
+ else:
+ print("Thread {} solved work in {} cycles - YAY!".format(q, tries))
+ wname = "{}{}".format(mname, str(q))
+ block_send = []
+ del block_send[:] # empty
+ block_timestamp = '%.2f' % time.time()
+ block_send.append((block_timestamp, nonce, db_block_hash, netdiff, xdiffx, dh, mname, thr, str(q)))
+ print("Sending solution: {}".format(block_send))
+ tries = 0
+ # submit mined nonce to pool
+ try:
+ s1 = socks.socksocket()
+ if tor_conf == 1:
+ s1.setproxy(socks.PROXY_TYPE_SOCKS5, "127.0.0.1", 9050)
+ s1.connect((mining_ip_conf, int(port))) # connect to pool
+ print("Miner: connected to pool, proceeding to submit solution")
+ connections.send(s1, "block", 10)
+ connections.send(s1, self_address, 10)
+ connections.send(s1, block_send, 10)
+ print("Miner: solution submitted to pool")
+ time.sleep(0.2)
+ s1.close()
+
+ except Exception as e:
+ print("Miner: Could not submit solution to pool")
+ pass
+ except Exception as e:
+ print(e)
+ time.sleep(0.1)
+ raise
+ finally:
+ if process_mmap:
+ mining.mining_close()
+
+
+def runit():
+ connected = 0
+ dh = 0
+ hq = Queue()
+
+ #Added by kbk
+ bisCuda = bis.BisCuda()
+ db_block_hash_previous = " "
+ thr = 1
+ #Eo added by kbk
+
+ while True:
+ try:
+ # Added by kbk
+ start_time = datetime.now() #Timing hashrate
+ # Eo added by kbk
+
+ s = socks.socksocket()
+ if tor_conf == 1:
+ s.setproxy(socks.PROXY_TYPE_SOCKS5, "127.0.0.1", 9050)
+ s.connect((mining_ip_conf, int(port))) # connect to pool
+ connections.send(s, "getwork", 10)
+ work_pack = connections.receive(s, 10)
+ db_block_hash = (work_pack[-1][0])
+ diff = int((work_pack[-1][1]))
+ paddress = (work_pack[-1][2])
+ netdiff = int((work_pack[-1][3]))
+ s.close()
+
+ diff_hex = math.floor((diff / 8) - 1)
+ mining_condition = db_block_hash[0:diff_hex]
+
+ print("{} miners searching for solutions at difficulty {} and condition {}".format(mining_threads_conf,str(diff),str(mining_condition)))
+
+ #Added by kbk
+ if db_block_hash != db_block_hash_previous:
+ bisCuda.Update(paddress, db_block_hash, mining_condition)
+ bisCuda.ValidNoncesGet() #Clear buffer
+ db_block_hash_previous = db_block_hash
+ print("Updated CUDA block hash")
+
+ miner(1, paddress, db_block_hash, diff, mining_condition, netdiff, hq, thr, dh, bisCuda)
+ stop_time = datetime.now()
+ elapsed_time = stop_time - start_time
+ nHashes = bisCuda.GetNumerOfHashesSinceLastCall()
+ hPerSec = nHashes/elapsed_time.total_seconds()
+ print("\n************************\n")
+ print(hPerSec/1e6, "Mh/s")
+ print("\n************************\n")
+ #Eo added by kbk
+
+ except Exception as e:
+ print(e)
+ print("Miner: Unable to connect to pool check your connection or IP settings.")
+ time.sleep(1)
+
+
+if __name__ == '__main__':
+ freeze_support() # must be this line, don't move ahead
+
+ mining.mining_open()
+ try:
+ runit()
+ finally:
+ mining.mining_close()