On Wed, Jun 6, 2012 at 12:03 AM, Joseph A. Farran <[email protected]> wrote:
> Ok.   I was not sure if OGE had a default way of telling it the Parallel
> name to use if none was given.

I think the client-side JSV way is the best way to pick the default
PE... unless Reuti or others have other better ways. (There's always
more than 1 way to do things in Grid Engine.)

> From what I can tell so far with OGE
> (correct me if I am wrong) compared to Torque which is where I am coming
> from, the Parallel Environment is just a tag to define some parallel configs
> such as how to allocate cores (slots), etc.     With Torque you request both
> nodes & cores in your job script, so you can slice and dice fairly easily.

I understand what you mean - eg. the nodes/ppn, procs parameters in
Torque and the -R "span[ptile=<value>]"  in LSF are more flexible.

As I mentioned before, Grid Engine PEs have a lot more than just
parallel configs - PE affects scheduling, tight or non-tight
integration (which then affects the handling of launching slave
tasks), and the actual execution of the PE (start_proc, etc). It is a
very heavy interface, and we understand the issue.

However, we can't just change the code overnight - we need more
developers if we were to clean up all the non-straightforward
interfaces in Grid Engine (and trust me, the PE interface is not that
bad!).

Rayson



>
> If anyone has a links / references on tips for transitioning from Torque to
> OGE, please post.
>
> Best,
> Joseph
>
>
>
>
>

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