The package CL.Platforms

This package contains all functionality to query the available OpenCL platforms, their devices and capabilities. The two main types are Platform and Device. A typical usage pattern would be:

declare
   -- Just take the first available platform. If there are multiple
   -- platforms available, you should choose between them.
   My_Platform : CL.Platforms.Platform := CL.Platforms.List (1);
   
   GPU_Devices : My_Platform.Devices
     (CL.Platforms.Device_Kind'(GPU => True, others => False) );
begin
   -- do something
end;

You can query the supported OpenCL version and extensions from the platform; each device has a vast list of attributes which can be queried by the getter functions provided in this package.