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Hi,

First question is:
I want to assign 8 threads to 8 processors (must one to one), when I
initialize the thread, does it guarantee that each CPU has one thread?
or there can be some case such that 4 threads on one process and other
4 thread on 4 processors and 3 processors have no threads at all?

Second question is:
For instance, one processor has 4 jobs running, is it possible to shift
2 of them to other processors? using IPC stuffs? or other methods?


For the above questions, is there any reference links that I can visit?
I am new to threading. Thanks ahead to anyone answer my questions.

wrote:
> Hi,
>
> First question is:
> I want to assign 8 threads to 8 processors (must one to one), when I
> initialize the thread, does it guarantee that each CPU has one thread?
> or there can be some case such that 4 threads on one process and other
> 4 thread on 4 processors and 3 processors have no threads at all?
>
> Second question is:
> For instance, one processor has 4 jobs running, is it possible to shift
> 2 of them to other processors? using IPC stuffs? or other methods?
>
>
> For the above questions, is there any reference links that I can visit?
> I am new to threading. Thanks ahead to anyone answer my questions.

This is off-topic here. You should ask in a group that's specific to
your OS or to the threading mechanism you're using (I guess it's Linux
or POSIX for pthread).

--
Ioan - Ciprian Tandau
tandau _at_ freeshell _dot_ org (hope it's not too late)
(... and that it still works...)

writes:
> First question is:
> I want to assign 8 threads to 8 processors (must one to one), when I
[...]

Standard C doesn't support threads. Try comp.programming.threads.

--
Keith Thompson (The_Other_Keith) kst- <http://www.ghoti.net/~kst>
San Diego Supercomputer Center <*> <http://users.sdsc.edu/~kst>
We must do something. This is something. Therefore, we must do this.

Scheduling algoriths are OS specific, so I guess there is little you as
an application programmer do to allocate a particluar thread to a
particluar CPU

"" <> writes:
> Scheduling algoriths are OS specific, so I guess there is little you as
> an application programmer do to allocate a particluar thread to a
> particluar CPU

Threads in general are OS specific; comp.programming.threads would be
a better place to discuss them.

And please read <http://cfaj.freeshell.org/google/>.

--
Keith Thompson (The_Other_Keith) kst- <http://www.ghoti.net/~kst>
San Diego Supercomputer Center <*> <http://users.sdsc.edu/~kst>
We must do something. This is something. Therefore, we must do this.