opencl - ViennaCL on OS X: Can't copy data to GPU -


i'm learning work viennacl. first tries on cpu worked fine, trying use opencl. however, can't manage data onto gpu - while matrices seem created, don't contents:

#define viennacl_with_opencl #define viennacl_with_ublas  #include <boost/numeric/ublas/matrix.hpp> #include "viennacl/matrix.hpp"  int main() {     boost::numeric::ublas::matrix<float> data_cpu(1,1);     data_cpu(0,0) = 1;      viennacl::matrix<float> data_gpu(1,1);     viennacl::copy(data_cpu, data_gpu);      assert(data_cpu(0,0) == data_gpu(0,0)); }

after this, data_gpu(0,0) 0 believe should 1.

i'm compiling g++ nocopy.cpp -framework opencl. using os x provided opencl driver.

what doing wrong here?

edit: removing viennacl_with_opencl fixes problem, not want.

looks (my?) os x installation of opencl somehow broken. other, plain, opencl examples fail well:

noname:histogram markus$ ./histogram  opencl device vendor = nvidia,  opencl device name = geforce gt 650m,  opencl device version = opencl 1.1  image histogram image type = cl_rgba, cl_unorm_int8: verify_histogram_results failed indx = 0, gpu result = 0, expected result = 8204 image dimensions: 1920 x 1080 pixels, image type = cl_rgba, cl_unorm_int8 time compute histogram = 0 ms image histogram image type = cl_rgba, cl_float: verify_histogram_results failed indx = 0, gpu result = 0, expected result = 8049 image dimensions: 1920 x 1080 pixels, image type = cl_rgba, cl_float time compute histogram = 0 ms noname:histogram markus$ pwd /users/markus/desktop/tmp/opencl-book-samples-read-only/src/chapter_14/histogram

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