Hi guys, as I was recently discussing asynchronous transfer and execution with Evan in an MPI context, this is now addressed with viennacl::async_copy()
Typical use case: std::vector<double> std_x(SIZE); viennacl::vector<double> vcl_x(SIZE); viennacl::async_copy(std_x, vcl_x); // same as next line viennacl::async_copy(std_x.begin(), vcl_x.begin(), vcl_x.end()); /* do some other stuff here */ viennacl::backend::finish(); // sync queue (OpenCL) or device (CUDA) Copying from device back to host works analogously. This also works with vector_range and vector_stride. There is no async copy for matrices right now, because there are essentially always data conversions involved, preventing truly asynchronous operations. Best regards, Karli ------------------------------------------------------------------------------ Get your SQL database under version control now! Version control is standard for application code, but databases havent caught up. So what steps can you take to put your SQL databases under version control? Why should you start doing it? Read more to find out. http://pubads.g.doubleclick.net/gampad/clk?id=49501711&iu=/4140/ostg.clktrk _______________________________________________ ViennaCL-devel mailing list ViennaCL-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/viennacl-devel
