Critical OpenCL big affecting intel Graphics devices

[brichard19]

There is a critical OpenCL bug detailed here https://software.intel.com/en-us/forums/opencl/topic/801754

This bug affects the OpenCL version of Bitcrack. It will not find keys on some Intel graphics devices.

I will look into creating a work-around in the code until the issue is resolved.

[dem10]

Perhaps for the same reason AMD devices do not work correctly?

[OSoup]

I have a laptop with Intel HD Graphics 620 and dedicated AMD Radeon 530. None of them works.

[OSoup]

I have a laptop with Intel HD Graphics 620 and dedicated AMD Radeon 530. None of them works.

0.28 release is working now with AMD Radeon 530.
Intel HD Graphics 620 still not working
Thanks!

[hamnaz]

current updates
1 feb 2019
fresh install, and compile
with cl bitcrack, 1 address at gtx 460 - comp
5.6 mkeys/s
with cu bitcrack -comp
44 mkeys/s
with oclvanitygen both comp/uncomp
13.80 mkeys/s

[brichard19]

The latest release (0.29) has a workaround for the Intel multiplication bug. Tested on an Intel UHD 630

[OSoup]

0.29 release is working now on Intel HD Graphics 620.
Thanks!

[AmadeiX]

And Intel HD Graphics 520. Thanks!

[ayiphelmy]

how to use multiple gpu? i add command in bat like -d 0 -d 1 not working... the software always use d 1 gpu

[brichard19]

@ayiphelmy Each instance can only use 1 GPU. To use multiple GPUs you will need to run multiple instances of the program.

[tradingbaha001]

2020 ==) on intel hd graphics 620 , it stops at ===) loading adresses from ' address .txt ' ?
it redirects me to a new command typing task ?

[tradingbaha001]

@brichard19 2020 ==) on intel hd graphics 620 , it stops at ===) loading adresses from ' address .txt ' ?
it redirects me to a new command typing task ?

[usergoodgithub]

in fact, on AMD devices, the not finding error is when the --keyspace parameter is specified.When we do not specify this parameter, the program works fine. As soon as the parameter is indicated, any range, then the result can be skipped. Hope for a quick direction from the developer. Thank you.

[kamilkilic93]

Hi. I downloaded all files. I typed the key I want to search in the keys section of the main file in the AddrGen folder. There is no activity currently. When I try to open .exe files it instantly shuts down. How should I go about it? What should I do?

[kamilkilic93]

I tried running the program in Linux. I failed.

./cuBitCrack: Access denied....

./clBitCrack: There is no such file or directory ...

Command not found ...

As a result, I failed and was desperate. I'm waiting for your help.

Linux sürümü, Mint 19.2
Cuda is loaded.
OpenCl is loaded.

[Nowshad420]

May i get a video, please? How to use it. Its very helpful for me. My Intel HD Graphics 5500

[focus8877]

Hello sir I have an address but looking for the right tools to crack the private key

[mirameshs]

my device is
opencl version : 3.0.1.0
device : RX580 8GB
I have same problem and can not find the key on some ranges

is there any solution ?

[shrec]

i have AMD RX590 when input bitcoin puzzle addresses
1BgGZ9tcN4rm9KBzDn7KprQz87SZ26SAMH
1CUNEBjYrCn2y1SdiUMohaKUi4wpP326Lb
19ZewH8Kk1PDbSNdJ97FP4EiCjTRaZMZQA
1EhqbyUMvvs7BfL8goY6qcPbD6YKfPqb7e
1E6NuFjCi27W5zoXg8TRdcSRq84zJeBW3k
1PitScNLyp2HCygzadCh7FveTnfmpPbfp8
1McVt1vMtCC7yn5b9wgX1833yCcLXzueeC
1M92tSqNmQLYw33fuBvjmeadirh1ysMBxK
1CQFwcjw1dwhtkVWBttNLDtqL7ivBonGPV
1LeBZP5QCwwgXRtmVUvTVrraqPUokyLHqe
1PgQVLmst3Z314JrQn5TNiys8Hc38TcXJu
1DBaumZxUkM4qMQRt2LVWyFJq5kDtSZQot
1Pie8JkxBT6MGPz9Nvi3fsPkr2D8q3GBc1
1ErZWg5cFCe4Vw5BzgfzB74VNLaXEiEkhk
1QCbW9HWnwQWiQqVo5exhAnmfqKRrCRsvW
1BDyrQ6WoF8VN3g9SAS1iKZcPzFfnDVieY
1HduPEXZRdG26SUT5Yk83mLkPyjnZuJ7Bm

founds only 1BgGZ9tcN4rm9KBzDn7KprQz87SZ26SAMH and 1EhqbyUMvvs7BfL8goY6qcPbD6YKfPqb7e all others are skipped. i'm developer but not worked before with opencl and dont know everythin. what i see and don't know it's correct or not
this function lods same range keys 256 times in gpu memory void CLKeySearchDevice::generateStartingPoints()
{
uint64_t totalPoints = (uint64_t)_points;
uint64_t totalMemory = totalPoints * 40;

std::vector<secp256k1::uint256> exponents;

initializeBasePoints();

_pointsMemSize = totalPoints * sizeof(unsigned int) * 16 + _points * sizeof(unsigned int) * 8;

Logger::log(LogLevel::Info, "Generating " + util::formatThousands(totalPoints) + " starting points (" + util::format("%.1f", (double)totalMemory / (double)(1024 * 1024)) + "MB)");

// Generate key pairs for k, k+1, k+2 ... k + <total points in parallel - 1>
secp256k1::uint256 privKey = _start;

exponents.push_back(privKey);

for(uint64_t i = 1; i < totalPoints; i++) 
{        
    //privKey = privKey.add(_stride);
    exponents.push_back(privKey);        
}

unsigned int *privateKeys = new unsigned int[8 * totalPoints];

for(int index = 0; index < _points; index++) {
    splatBigInt(privateKeys, index, exponents[index]);
}

// Copy to device
_clContext->copyHostToDevice(privateKeys, _privateKeys, totalPoints * 8 * sizeof(unsigned int));

delete[] privateKeys;



// Show progress in 10% increments

double pct = 10.0;
for(int i = 0; i < 256; i++) {
_initKeysKernel->set_args(_points, i, _privateKeys, _chain, _xTable, _yTable, _x, _y);
_initKeysKernel->call(_blocks, _threads);

    if(((double)(i+1) / 256.0) * 100.0 >= pct) {
        Logger::log(LogLevel::Info, util::format("%.1f%%", pct));
        pct += 10.0;
    }
}

Logger::log(LogLevel::Info, "Done");

} and in loop system always finding 1BgGZ9tcN4rm9KBzDn7KprQz87SZ26SAMH and 1EhqbyUMvvs7BfL8goY6qcPbD6YKfPqb7e infinitly also i was not able to build opencl kernel until i copied functions from other cl files

[Elielpsa]

Does anyone know if this program searches in random or sequential MODE?