doc: add initial (and minimal) blabla on socl

doc/chapters/socl.texi

@@ -0,0 +1,25 @@
+@c -*-texinfo-*-
+
+@c This file is part of the StarPU Handbook.
+@c Copyright (C) 2012  Centre National de la Recherche Scientifique
+@c See the file starpu.texi for copying conditions.
+
+SOCL is a extension that aims at implementing the OpenCL standard on
+top of StarPU. It allows to gives a (relatively) clean and
+standardized API to StarPU.
+By allowing OpenCL applications to use StarPU transparently, it
+provides users with the latest StarPU enhancements without any further
+development, and allows these OpenCL applications to easily fall back
+to another OpenCL implementation.
+
+This section does not require detailed knowledge of the StarPU
+library.
+
+Note: as of StarPU @value{VERSION}, this is still an area under
+development and subject to change.
+
+TODO
+
+
+
+

doc/starpu.texi

@@ -74,6 +74,7 @@ was last updated on @value{UPDATED}.
 * StarPU MPI support::          How to combine StarPU with MPI
 * StarPU FFT support::          How to perform FFT computations with StarPU
 * C Extensions::                Easier StarPU programming with GCC
+* SOCL OpenCL Extensions::      How to use OpenCL on top of StarPU
 * StarPU Basic API::            The Basic API to use StarPU
 * StarPU Advanced API::         Advanced use of StarPU
 * Configuring StarPU::          How to configure StarPU
@@ -172,6 +173,14 @@ was last updated on @value{UPDATED}.
 @include chapters/c-extensions.texi
 
 @c ---------------------------------------------------------------------
+@c SOCL
+@c ---------------------------------------------------------------------
+
+@node SOCL OpenCL Extensions
+@chapter SOCL OpenCL Extensions
+@include chapters/socl.texi
+
+@c ---------------------------------------------------------------------
 @c StarPU API
 @c ---------------------------------------------------------------------