Subj : Re: Challenge: Multithreading & Synchronization
To   : comp.programming.threads
From : Uenal Mutlu
Date : Thu May 19 2005 03:35 pm

"Sergei Organov" wrote
> "Uenal Mutlu" writes:
>
> [...]
> > But if the data objects are independent of each other then it is
> > more efficient to let each have its own mutex.
>
> Well, in a 3D-vector coordinates X, Y, and Z are independent in the same
> sense your data items are independent. The question is: is it more
> efficient to let each coordinate have its own mutex?

In this case IMO it does not make much sense to lock X, Y, Z individually.
It depends on what kind of access to the data you want for your threads.
It's an issue of the application logic.
There are usually many ways to solve a problem, just chose the right one
you like and know best.

.