Why does clLinkProgram take a context handle?

Question

In OpenCL, the clLinkProgram() function takes (among other things)

A cl_context context handle;
An array of cl_program handles of program objects.

Now, a cl_program is always created in a context; and unless I'm mistaken, all programs being linked must share the same context. It should therefore be possible to just obtain the programs' context handle.

So: Is the context handle parameter of clLinkProgram() redundant?

Edward Murphy · Accepted Answer · 2025-03-27 19:19:54Z

0

From reading the documentation, it appears that clLinkProgram will only link for the provided cl_context. This seems to be to allow a programmer to create cl_program objects with binary source for multiple platforms, and link them at runtime to the desired cl_context.

answered Mar 27 at 19:19

Edward Murphy

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