VexCL is vector expression template library for OpenCL developed by the Supercomputer Center of Russian academy of sciences. It has been created for ease of C++ based OpenCL development. Multi-device (and multi-platform) computations are supported. The code is publicly available under MIT license.

Main features:

• Selection and initialization of compute devices according to extensible set of device filters.
• Transparent allocation of device vectors spanning multiple devices.
• Convenient notation for vector arithmetic, sparse matrix-vector multiplication, reductions. All computations are performed in parallel on all selected devices.
• Appropriate kernels for vector expressions are generated automatically first time an expression is used.

Doxygen-generated documentation is available at http://ddemidov.github.com/vexcl/index.html.