[Swift-devel] Re: ranger block scheduling

[Michael Wilde]

Hi Glen,

The coaster block allocation params are listed in the users guide 
section on coasters:

http://www.ci.uchicago.edu/swift/guides/userguide.php#coasters

which in turn refers you here for the details of the coaster params:

http://www.ci.uchicago.edu/swift/guides/userguide.php#profile.globus

Note that the maxWallTime setting of the job (eg from tc.data or 
sites.xml) affects how jobs get placed into blocks.

You should use the latest svn rev - to get Mihael's latest fixes.

I think we need to write more explanation and provide examples for how 
to set all the parameters. I think the defaults use only one worker node 
per block, from a quick read.

Mihael, maybe you can provide a few examples of settings that work well 
together, or show some common usages, and explain which params you 
typically need to set eg on Ranger or other TG sites. 
(workersPerNode=16, 8 etc. of course).

- Mike


On 9/26/09 7:35 PM, Glen Hocky wrote:
> hi mike,
> i updated the install script so now new_oops seems to install correctly 
> on bgp and ranger
> 
> when you get the chance, can you re-forward me a thread about block 
> scheduling so i can see if i can get it running under swift
> 
> Glen
>