Guy Streeter, le Wed 15 Dec 2010 23:47:39 +0100, a écrit : > I noticed that some functions (in or not in the ABI I don't recall right > now, I'm not at my desk) need the topology parameter only because the > topology structure holds pointers to platform-specific routines. That seems > like a confusing generalization of the parameter's meaning/purpose.
In the case of platform-specific routines, that's needed because depending on how the discovery was done (synthetic topology, loaded topology of another machine, etc.) the platform-specific routines will vary, and we depend on that. For instance, some programmers want to be able to simulate the execution of a distribution algorithm on another machine topology, in that case the cpu-binding functions should just succeed without doing anything. It's thus necessary to have the topology pointer along the cpuset, to be sure of what should be done. Samuel
