[Swift-devel] Re: MCS cluster

[wilde at mcs.anl.gov]

----- "Jonathan Monette" <jon.monette at gmail.com> wrote:

> Mike,
>      Why am I not able to submit tasks to the MCS machines from my 
> laptop?  Why does it have to be from another MCS machine?

Basically because *I think* the MCS server machines are not visible outside the MCS firewall - you need to ssh into them via a login.mcs host. 

Now, that's what I *think*, but you should verify by testing and reading the MCS FAQs.

If I am correct, you *might* be able to get around this with clever ssh tunneling, but that will also be work to figure out.

I cant recall what I did the other day to get around the problems with svn co of cog from sourceforge, but thats another angle you could attack.

If symlinked path synonyms dont get in the way, you *might* be able to co a clean cog tree to a CI host and then tar it to the MCS net. Im not sure if the cog-checkout problem is unique to mcs-to-sourceforge, or happens elsewhere. I think I recall it happening on CI hosts as well. Maybe its caused by fast client hosts or networks that cause sourceforge to throttle back (and get hung in the process)???

I'm cc'ing swift-devel here for other ideas.

- Mike

> Because I 
> cannot checkout the swift trunk to machines I cannot use the fixes
> that 
> have been commited to run the Montage wrappers.
> 
> -- 
> Jon
> 
> Computers are incredibly fast, accurate, and stupid. Human beings are
> incredibly slow, inaccurate, and brilliant. Together they are powerful
> beyond imagination.
> - Albert Einstein

-- 
Michael Wilde
Computation Institute, University of Chicago
Mathematics and Computer Science Division
Argonne National Laboratory