Oswin Krause

meta_kernel::compile is very slow, even for cached source

7

Hi, I am currently benchmarking the overhead of boost::compute. My test-program is computing nothing big and the equivalent cpu program finishes in no measurable runtime. The OpenCL version takes several...

possible kernel proliferation with scalar parameters

10

Consider the following function ``` namespace bc=boost::compute; void add_scalar(bc::vector& v, float scalar){ auto unary = bc::bind(bc::plus(),bc::placeholders::_1, scalar);//_1+scalar bc::transform(v().begin(),v().end(), v().begin(), unary); } ... bc::vector v(10000,1.0); for(int i = 0; i !=...

important data structures in detail namespace

5

Hi, I am trying to extend the boost.compute mechanisms to my matrix library and run into trouble implementing certain functionality as the mechanisms by which compute generates kernels out of...

The following compiles but fails at run-time: ``` boost::compute::vector a(100,1.0); double t = 3.2; auto p = boost::compute::bind(boost::compute::pow(),boost::compute::placeholders::_1, t); boost::compute::transform(a.begin(),a.end(),a.begin(),p); ``` The issue is that pow can only take arguments...

comparison operators declare wrong result_type

5

Hi, In functional/operators.hpp we have `BOOST_COMPUTE_DECLARE_BINARY_OPERATOR(equal_to, "==", T, T) BOOST_COMPUTE_DECLARE_BINARY_OPERATOR(not_equal_to, "!=", T, T) BOOST_COMPUTE_DECLARE_BINARY_OPERATOR(greater, ">", T, T) BOOST_COMPUTE_DECLARE_BINARY_OPERATOR(less, "=", T, T) BOOST_COMPUTE_DECLARE_BINARY_OPERATOR(less_equal, "