It works! jbelloch@odroid:~/EQU_FILTERING_sandra/ViennaCL-1.7.1$ g++ examples/tutorial/blas1.cpp -I. -lOpenCL -L/home/jbelloch/EQU_FILTERING_sandra/opencl/lib/ jbelloch@odroid:~/EQU_FILTERING_sandra/ViennaCL-1.7.1$ ./a.out Copying a few scalars... Manipulating a few scalars... operator += operator *= operator -= operator /= operator + multiple operators mixed operations CPU scalar s3: 42 GPU scalar vcl_s3: 42 !!!! TUTORIAL COMPLETED SUCCESSFULLY !!!!
Best regards, Sandra El vie, 19 nov 2021 a las 8:49, Karl Rupp (<[email protected]>) escribió: > Indeed! > > Line 58 causes the error: > > https://github.com/viennacl/viennacl-dev/blob/master/viennacl/ocl/platform.hpp > > However, these lines are *exactly* the same as in the minimal example; > but the minimal example succeeds. Also, this is the very first call to > OpenCL, so there can't be any prior undetected errors. > > What happens if you compile manually? In the main ViennaCL folder: > $> g++ example/tutorial/blas1.cpp -I. -lOpenCL > -L/home/jbelloch/EQU_FILTERING_sandra/opencl/lib/ > > and then > $> ./a.out > > Best regards, > Karli > > On 11/19/21 08:37, SANDRA CATALAN PALLARES wrote: > > The mistery continues: > > > > jbelloch@odroid:~/EQU_FILTERING_sandra/test_opencl$ ./a.out > > # Platforms found: 1 > > 0 > > > > Best regards, > > Sandra > > > > El vie, 19 nov 2021 a las 8:33, Karl Rupp (<[email protected] > > <mailto:[email protected]>>) escribió: > > > > > > Good morning, > > > > oh - now I'm puzzled. :-/ > > > > Can you please add a > > std::cout << err << std::endl; > > after > > std::cout << "# Platforms found: " << num_platforms << std::endl; > > > > Which value do you get? Maybe clGetPlatformIDs returns a nonzero > > error code? > > > > Best regards, > > Karli > > > > On 11/19/21 08:29, SANDRA CATALAN PALLARES wrote: > > > Hi, > > > > > > The example is working :) > > > > > > jbelloch@odroid:~/EQU_FILTERING_sandra/test_opencl$ g++ test.cpp > > > -lOpenCL -L/home/jbelloch/EQU_FILTERING_sandra/opencl/lib/ > > > jbelloch@odroid:~/EQU_FILTERING_sandra/test_opencl$ ./a.out > > > # Platforms found: 1 > > > > > > Cheers, > > > Sandra > > > > > > El jue, 18 nov 2021 a las 19:48, Karl Rupp > > (<[email protected] <mailto:[email protected]> > > > <mailto:[email protected] <mailto:[email protected]>>>) > > escribió: > > > > > > thanks! This indicates that there is no OpenCL platform > > detected on > > > your > > > system. Basically this is the simplest query of all. > > > > > > Can you try to compile and run the following minimal example? > > > > > > > > > #include <iostream> > > > #include <string> > > > #include <vector> > > > #include <cmath> > > > #include <stdexcept> > > > > > > #ifdef __APPLE__ > > > #include <OpenCL/cl.h> > > > #else > > > #include <CL/cl.h> > > > #endif > > > > > > int main() > > > { > > > cl_uint num_platforms; > > > cl_platform_id platform_ids[42]; > > > cl_int err = clGetPlatformIDs(42, platform_ids, > > &num_platforms); > > > std::cout << "# Platforms found: " << num_platforms << > > std::endl; > > > > > > return 0; > > > } > > > > > > > > > > > > $> g++ test.cpp -lOpenCL > > > -L/home/jbelloch/EQU_FILTERING_sandra/opencl/lib/ > > > > > > should produce the executable a.out. > > > > > > It should return at least one platform. > > > > > > Thanks and best regards, > > > Karli > > > > > > > > > > > > > > > > > > > > > > > -- > > > > *Sandra Catalán Pallarés* > > SecciónDept. Arquitectura de Computadores y Automática > > Facultad de Ciencias Físicas - Desp. 223 > > Universidad Complutense de Madrid > > 28040 - Madrid (Spain) > > (+34) 91 394 *4394 - *[email protected] <mailto:[email protected]> > -- *Sandra Catalán Pallarés* Sección Dept. Arquitectura de Computadores y Automática Facultad de Ciencias Físicas - Desp. 223 Universidad Complutense de Madrid 28040 - Madrid (Spain) (+34) 91 394 *4394 - *[email protected]
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