cf4ocl, a C Framework for OpenCL

Introduction

Overview

The C Framework for OpenCL, cf4ocl, is a cross-platform pure C object-oriented framework for developing and benchmarking OpenCL projects. It aims to:

Promote the rapid development of OpenCL programs in C, with support for C++.
Assist in the benchmarking of OpenCL events, such as kernel execution and data transfers.
Simplify the analysis of the OpenCL environment and of kernel requirements.

Features

Object-oriented interface to the OpenCL API
- New/destroy functions, no direct memory alloc/free
- Easy (and extensible) device selection
- Simple event dependency mechanism
- User-friendly error management
OpenCL version and platform independent
Integrated profiling
Advanced device query utility
Offline kernel compiler and linker

Documentation

User guide: cf4ocl user guide.
Tutorial: Developing an application with cf4ocl.
Utilities: Utilities included with cf4ocl.
Function list: List of cf4ocl functions and function-like macros.
Library modules: Detailed description of each cf4ocl module.
Examples: A selection of examples implemented with cf4ocl.
Wiki: Useful information about cf4ocl.

Small example

The example below shows a clean and fast way to create an OpenCL context with a user-selected device:

#include <cf4ocl2.h>
int main() {
    /* Variables. */
    CCLContext * ctx = NULL;
    /* Code. */
    ctx = ccl_context_new_from_menu(NULL);
    if (ctx == NULL) exit(-1);
    /* Destroy context wrapper. */
    ccl_context_destroy(ctx);
    return 0;
}

Not yet integrated

A few OpenCL API calls, most of which introduced with OpenCL 2.1, are not yet integrated with cf4ocl. However, this functionality is still available to client code, because cf4ocl can be used simultaneously with raw OpenCL objects and functions.

License

Library code is licensed under LGPLv3, while the remaining code (utilities, examples and tests) is licensed under GPLv3.

Other useful C/C++ frameworks/utilities for OpenCL

If cf4ocl does not meet your requirements, take a look at the following projects: