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Re: [Xgrid] Supercomputing for the least of us
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Re: [Xgrid] Supercomputing for the least of us

No question worth asking is stupid.  And I still think Visual Hub is awesome even though I still write programs for Xgrid.  That's exactly the kind of product us programmers make - a program anybody can figure out.

As for your question, put simply, if your Xgrid controller is available to the Internet, then anyone can connect to it.

If you have a normal LAN, then this just involves forwarding ports 4111-4120 and 49200-49500 on your router to the computer running your Xgrid controller.  (this means that computer needs a static IP address)

Also, since your controller would now be available to the Internet, you really should set a password for client programs to connect.  If you are using XgridLite to set up your controller, then it's really easy to figure out.  You don't want other people submitting jobs to your controller without your permission.

To connect to your controller over the Internet, all you have to type into the hostname field in the Xgrid section of System Preferences is the public IP address of your LAN.  Just do a Google for "public IP address" and you'll find several pages that show your public IP address.

Now, there is a little thing about bandwidth...  Your home network is probably at least 100 base-T, and I'm assuming your Internet connection is around 2 Mb/s.  Because your Internet connection is so much slower than your LAN, be prepared to wait a while for the jobs to be transfered to the agents if they're over the Internet.  100 base-T is is 50 times faster than a 2Mb/s Internet connection - and that's just on the download speed; uploads are usually slower still.

Feel free to ask any questions if I've skipped to many steps.

HTH-
Andrew Keller

On Mar 11, 2007, at 11:57 AM, kira moon wrote:


Hello
I'm using Visual Hub to encode batches of movie files with a ragged cluster of old portables. I'm very impressed with the results and glad that I can do it all drag-and-drop.
Here's my question: Can my friends join in the fun via internet? I have no problem enlisting the machines in my LAN via the Sharing Preferences panel, but how would someone away from my LAN configure their Sharing Preferences to submit their computer to my controller?
Sorry if the question is a little dumb but so am I.
Gratefully    
kira
www.kiramdear.net
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