compute_vexcl.cpp

#include <iostream>
#include <boost/compute.hpp>
#define VEXCL_BACKEND_COMPUTE
#include <vexcl/vexcl.hpp>

namespace compute = boost::compute;

int main() {
    compute::command_queue bcq = compute::system::default_queue();

    // Use boost.compute queue to allocate vexcl vectors:
    vex::vector<int> x({bcq}, 16);
    x = vex::element_index();
    std::cout << "x = " << x << std::endl;

    // Wrap boost.compute vectors into vexcl vectors (no data is copied):
    compute::vector<int> bcv(16, bcq.get_context());
    vex::vector<int> y({bcq}, bcv.get_buffer());
    y = x * 2;
    std::cout << "bcv = [ ";
    for(int v : bcv) std::cout << v << " ";
    std::cout << "]" << std::endl;
}