GLX_AMD_gpu_association
http://www.opengl.org/registry/specs/AMD/glx_gpu_association.txt
GLX_AMD_gpu_association
	GLX_GPU_VENDOR_AMD 0x1F00
	GLX_GPU_RENDERER_STRING_AMD 0x1F01
	GLX_GPU_OPENGL_VERSION_STRING_AMD 0x1F02
	GLX_GPU_FASTEST_TARGET_GPUS_AMD 0x21A2
	GLX_GPU_RAM_AMD 0x21A3
	GLX_GPU_CLOCK_AMD 0x21A4
	GLX_GPU_NUM_PIPES_AMD 0x21A5
	GLX_GPU_NUM_SIMD_AMD 0x21A6
	GLX_GPU_NUM_RB_AMD 0x21A7
	GLX_GPU_NUM_SPI_AMD 0x21A8
	void glXBlitContextFramebufferAMD (GLXContext dstCtx, GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1, GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1, GLbitfield mask, GLenum filter)
	GLXContext glXCreateAssociatedContextAMD (unsigned int id, GLXContext share_list)
	GLXContext glXCreateAssociatedContextAttribsAMD (unsigned int id, GLXContext share_context, const int* attribList)
	Bool glXDeleteAssociatedContextAMD (GLXContext ctx)
	unsigned int glXGetContextGPUIDAMD (GLXContext ctx)
	GLXContext glXGetCurrentAssociatedContextAMD (void)
	unsigned int glXGetGPUIDsAMD (unsigned int maxCount, unsigned int* ids)
	int glXGetGPUInfoAMD (unsigned int id, int property, GLenum dataType, unsigned int size, void* data)
	Bool glXMakeAssociatedContextCurrentAMD (GLXContext ctx)