Can the examples run without opencl.so ?

[alexde989]

Okay I have downloaded the examples. But I keep getting the following messages in Eclipse-:

Check your environment. Failed to load aparapi native library aparapi_x86_64 or possibly failed to locate opencl native library (opencl.dll/opencl.so). Ensure that both are in your PATH (windows) or in LD_LIBRARY_PATH (linux).

Now I have set the aparapi_x86_64.so in my library path. But I have not downloaded OpenCL ? Do I need OpenCL to run the examples ? Is it absolutely neccessary ?