Method CudaKeySearchDevice

CudaKeySearchDevice/CudaKeySearchDevice.cpp:16–59

}

CudaKeySearchDevice::CudaKeySearchDevice(int device, int threads, int pointsPerThread, int blocks)
{
    cuda::CudaDeviceInfo info;
    try {
        info = cuda::getDeviceInfo(device);
        _deviceName = info.name;
    } catch(cuda::CudaException ex) {
        throw KeySearchException(ex.msg);
    }

    if(threads <= 0 || threads % 32 != 0) {
        throw KeySearchException("The number of threads must be a multiple of 32");
    }

    if(pointsPerThread <= 0) {
        throw KeySearchException("At least 1 point per thread required");
    }

    // Specifying blocks on the commandline is depcreated but still supported. If there is no value for
    // blocks, devide the threads evenly among the multi-processors
    if(blocks == 0) {
        if(threads % info.mpCount != 0) {
            throw KeySearchException("The number of threads must be a multiple of " + util::format("%d", info.mpCount));
        }

        _threads = threads / info.mpCount;

        _blocks = info.mpCount;

        while(_threads > 512) {
            _threads /= 2;
            _blocks *= 2;
        }
    } else {
        _threads = threads;
        _blocks = blocks;
    }

    _iterations = 0;

    _device = device;

    _pointsPerThread = pointsPerThread;
}

void CudaKeySearchDevice::init(const secp256k1::uint256 &start, int compression, const secp256k1::uint256 &stride)
{