问题
I am newbie in SYCL/OpenCL/GPGPU. I am trying to build and run sample code of constant addition program,
#include <iostream>
#include <array>
#include <algorithm>
#include <CL/sycl.hpp>
namespace sycl = cl::sycl;
//<<Define ConstantAdder>>
template<typename T, typename Acc, size_t N>
class ConstantAdder {
public:
ConstantAdder(Acc accessor, T val)
: accessor(accessor)
, val(val) {}
void operator() () {
for (size_t i = 0; i < N; i++) {
accessor[i] += val;
}
}
private:
Acc accessor;
const T val;
};
int main(int, char**) {
std::array<int, 4> vals = {{ 1, 2, 3, 4 }};
sycl::queue queue(sycl::cpu_selector{});
std::cout << "Running on "
<< queue.get_device().get_info<sycl::info::device::name>()
<< "\n";
{
sycl::buffer<int, 1> buf(vals.data(), sycl::range<1>(4));
queue.submit([&] (sycl::handler& cgh) {
auto acc = buf.get_access<sycl::access::mode::read_write>(cgh);
cgh.single_task(ConstantAdder<int, decltype(acc), 4>(acc, 1));
} );
}
std::for_each(vals.begin(), vals.end(), [] (int i) { std::cout << i << " "; } );
std::cout << std::endl;
return 0;
}
I am building this code using
$ g++ constantAdder_backup.cpp -g -std=c++11 -o constantAdder -I /usr/local/computecpp/include -I/usr/include/ -L /usr/local/computecpp/lib -lComputeCpp -L /usr/lib/x86_64-linux-gnu -lOpenCL
and getting error
$ ./constantAdder
./constantAdder: /usr/local/cuda-8.0/lib64/libOpenCL.so.1: no version information available (required by /usr/local/computecpp/lib/libComputeCpp.so)
./constantAdder: /usr/local/cuda-8.0/lib64/libOpenCL.so.1: no version information available (required by /usr/local/computecpp/lib/libComputeCpp.so)\
./constantAdder: /usr/local/cuda-8.0/lib64/libOpenCL.so.1: no version information available (required by /usr/local/computecpp/lib/libComputeCpp.so)
Running on Intel(R) Core(TM) i7-4790 CPU @ 3.60GHz
terminate called after throwing an instance of 'cl::sycl::detail::exception_implementation<(cl::sycl::detail::exception_types)9, cl::sycl::detail::exception_implementation<(cl::sycl::detail::exception_types)6, cl::sycl::exception> >'
Aborted (core dumped)
What is
terminate called after throwing an instance of 'cl::sycl::detail::exception_implementation<(cl::sycl::detail::exception_types)9, cl::sycl::detail::exception_implementation<(cl::sycl::detail::exception_types)6, cl::sycl::exception> >' Aborted (core dumped) error mean? How can I fix this? Please help me.
P.S. System hardware is
$ /usr/local/computecpp/bin/computecpp_info
/usr/local/computecpp/bin/computecpp_info: /usr/local/cuda-8.0/lib64/libOpenCL.so.1: no version information available (required by /usr/local/computecpp/bin/computecpp_info)
/usr/local/computecpp/bin/computecpp_info: /usr/local/cuda-8.0/lib64/libOpenCL.so.1: no version information available (required by /usr/local/computecpp/bin/computecpp_info)
********************************************************************************
ComputeCpp Info (CE 0.7.0)
********************************************************************************
Toolchain information:
GLIBC version: 2.19
GLIBCXX: 20150426
This version of libstdc++ is supported.
********************************************************************************
Device Info:
Discovered 3 devices matching:
platform : <any>
device type : <any>
--------------------------------------------------------------------------------
Device 0:
Device is supported : NO - Device does not support SPIR
CL_DEVICE_NAME : GeForce GTX 750 Ti
CL_DEVICE_VENDOR : NVIDIA Corporation
CL_DRIVER_VERSION : 384.111
CL_DEVICE_TYPE : CL_DEVICE_TYPE_GPU
--------------------------------------------------------------------------------
Device 1:
Device is supported : UNTESTED - Device not tested on this OS
CL_DEVICE_NAME : Intel(R) HD Graphics
CL_DEVICE_VENDOR : Intel(R) Corporation
CL_DRIVER_VERSION : r5.0.63503
CL_DEVICE_TYPE : CL_DEVICE_TYPE_GPU
--------------------------------------------------------------------------------
Device 2:
Device is supported : YES - Tested internally by Codeplay Software Ltd.
CL_DEVICE_NAME : Intel(R) Core(TM) i7-4790 CPU @ 3.60GHz
CL_DEVICE_VENDOR : Intel(R) Corporation
CL_DRIVER_VERSION : 1.2.0.475
CL_DEVICE_TYPE : CL_DEVICE_TYPE_CPU
If you encounter problems when using any of these OpenCL devices, please consult
this website for known issues:
https://computecpp.codeplay.com/releases/v0.7.0/platform-support-notes
********************************************************************************
P.S. I have updated the code to know device I am running code on.
snippet of modification is
sycl::queue queue(sycl::cpu_selector{});
std::cout << "Running on "
<< queue.get_device().get_info<sycl::info::device::name>()
<< "\n";
Now I am taking cpu::selector (not an nvidia hardware), and printing the device. It clearly shows that it is running on Intel(R) Core(TM) i7-4790 CPU @ 3.60GHz. The output of
couputecpp_info
shows
Device is supported : YES - Tested internally by Codeplay Software Ltd
But still, it's showing the same error as
terminate called after throwing an instance of 'cl::sycl::detail::exception_implementation<(cl::sycl::detail::exception_types)9, cl::sycl::detail::exception_implementation<(cl::sycl::detail::exception_types)6, cl::sycl::exception> >' Aborted (core dumped)
回答1:
There is an exception of type cl::sycl::detail::exception_implementation<(cl::sycl::detail::exception_types)9, cl::sycl::detail::exception_implementation<(cl::sycl::detail::exception_types)6, cl::sycl::exception> > being thrown and not being caught.
To see the details of the exception either add a try catch in your main or run your code in a debugger. e.g.:
int main(int, char**) {
try
{
/*your code here*/
}
catch (std::exception& ex)
{
std::cerr << "exception caught: " << ex.what() << std::endl;
return 1;
}
return 0;
}
回答2:
You are not using the SYCL compiler when building your code. The following command could be used to do this.
/bin/compute++ constantAdder_backup.cpp -g -std=c++11 -o constantAdder -I /usr/local/computecpp/include -I/usr/include/ -L /usr/local/computecpp/lib -lComputeCpp -L /usr/lib/x86_64-linux-gnu -lOpenCL
You'll also need to ensure that LD_LIBRARY_PATH is set up to point to the lib folder of your ComputeCpp installation when executing the output.
回答3:
I notice the same bug when cuda 9.2 installed, try to uninstall cuda and run again your code
来源：https://stackoverflow.com/questions/50674177/terminate-called-after-throwing-an-instance-of-clsycldetailexception-impl