示例#1
0
    /**
     * In case BOOST_COMPUTE_USE_OFFLINE_CACHE macro is defined,
     * the compiled binary is stored for reuse in the offline cache located in
     * $HOME/.boost_compute on UNIX-like systems and in %APPDATA%/boost_compute
     * on Windows.
     */
    static program build_with_source(
            const std::string &source,
            const context     &context,
            const std::string &options = std::string()
            )
    {
#ifdef BOOST_COMPUTE_USE_OFFLINE_CACHE
        // Get hash string for the kernel.
        std::string hash;
        {
            device   d(context.get_device());
            platform p(d.get_info<cl_platform_id>(CL_DEVICE_PLATFORM));

            std::ostringstream src;
            src << "// " << p.name() << " v" << p.version() << "\n"
                << "// " << context.get_device().name() << "\n"
                << "// " << options << "\n\n"
                << source;

            hash = detail::sha1(src.str());
        }

        // Try to get cached program binaries:
        try {
            boost::optional<program> prog = load_program_binary(hash, context);

            if (prog) {
                prog->build(options);
                return *prog;
            }
        } catch (...) {
            // Something bad happened. Fallback to normal compilation.
        }

        // Cache is apparently not available. Just compile the sources.
#endif
        const char *source_string = source.c_str();

        cl_int error = 0;
        cl_program program_ = clCreateProgramWithSource(context,
                                                        uint_(1),
                                                        &source_string,
                                                        0,
                                                        &error);
        if(!program_){
            BOOST_THROW_EXCEPTION(runtime_exception(error));
        }

        program prog(program_, false);
        prog.build(options);

#ifdef BOOST_COMPUTE_USE_OFFLINE_CACHE
        // Save program binaries for future reuse.
        save_program_binary(hash, prog);
#endif

        return prog;
    }
示例#2
0
    /**
     * In case BOOST_COMPUTE_USE_OFFLINE_CACHE macro is defined,
     * the compiled binary is stored for reuse in the offline cache located in
     * $HOME/.boost_compute on UNIX-like systems and in %APPDATA%/boost_compute
     * on Windows.
     */
    static program build_with_source(
            const std::string &source,
            const context     &context,
            const std::string &options = std::string()
            )
    {
#ifdef BOOST_COMPUTE_USE_OFFLINE_CACHE
        // Get hash string for the kernel.
        device   d = context.get_device();
        platform p = d.platform();

        detail::sha1 hash;
        hash.process( p.name()    )
            .process( p.version() )
            .process( d.name()    )
            .process( options     )
            .process( source      )
            ;
        std::string hash_string = hash;

        // Try to get cached program binaries:
        try {
            boost::optional<program> prog = load_program_binary(hash_string, context);

            if (prog) {
                prog->build(options);
                return *prog;
            }
        } catch (...) {
            // Something bad happened. Fallback to normal compilation.
        }

        // Cache is apparently not available. Just compile the sources.
#endif
        const char *source_string = source.c_str();

        cl_int error = 0;
        cl_program program_ = clCreateProgramWithSource(context,
                                                        uint_(1),
                                                        &source_string,
                                                        0,
                                                        &error);
        if(!program_){
            BOOST_THROW_EXCEPTION(opencl_error(error));
        }

        program prog(program_, false);
        prog.build(options);

#ifdef BOOST_COMPUTE_USE_OFFLINE_CACHE
        // Save program binaries for future reuse.
        save_program_binary(hash_string, prog);
#endif

        return prog;
    }
示例#3
0
    /// Creates a new program with \p binary of \p binary_size in
    /// \p context.
    ///
    /// \see_opencl_ref{clCreateProgramWithBinary}
    static program create_with_binary(const unsigned char *binary,
                                      size_t binary_size,
                                      const context &context)
    {
        const cl_device_id device = context.get_device().id();

        cl_int error = 0;
        cl_int binary_status = 0;
        cl_program program_ = clCreateProgramWithBinary(context,
                                                        uint_(1),
                                                        &device,
                                                        &binary_size,
                                                        &binary,
                                                        &binary_status,
                                                        &error);
        if(!program_){
            BOOST_THROW_EXCEPTION(runtime_exception(error));
        }

        return program(program_, false);
    }