Re: [BProc] Two questions about bproc and bpsh

[<er...@he...>]

On Tue, Feb 11, 2003 at 01:05:11PM -0500, Chong Chen wrote:
> 1) I know that Bproc can change the node owner and permission to
> limit who can use it. Does the Bproc has the ability to control the
> access permission on cpu-level? For example, I have a compute node
> with four cpus. Is that possible for bproc to limit who can use
> which cpus? From the API and document, I assume that the answer is
> "No". I just want to confirm.

That's correct.  If linux got some interfaces to control that, I
expect that would change.

> 2) I know that bproc mpirun can pick up the nodes from the NODES
> environment variable, which is convenient if I run the parallel job
> through BJS. What about bpsh? Does it have the same ability, picking
> up the NODES environment variable, instead of specifying the node
> list in command line?

The easy way is to just feed the NODES value to bpsh like this:

bpsh $NODES command ...

- Erik