[Swift-devel] manual coasters

[wilde at mcs.anl.gov]

Very cool - thanks, Mihael!

For the sites entry, do we still use the current format to indicate where the server should start?
Eg:

  <pool handle="coasterpool01">
    <execution provider="coaster" url="none" jobManager="pbs"/>
    <profile namespace="globus"> key="workerManager">passive</profile>
    <profile namespace="globus" key="queue">fast</profile>
    <profile namespace="karajan" key="initialScore">10000</profile>
    <profile namespace="karajan" key="jobThrottle">.07</profile>
    <gridftp  url="local://localhost" />
    <workdirectory >/home/wilde/swiftwork</workdirectory>
  </pool>

Is the full range of provider options available to start the server in passive mode?

Will throttling settings be honored?

Can we start multiple coaster servers in different places?


- Mike


----- "Mihael Hategan" <hategan at mcs.anl.gov> wrote:

> Manual coasters are in trunk. I did some limited testing on
> localhost.
> 
> The basic idea is that you say <profile namespace="globus"
> key="workerManager">passive</profile> in sites.xml. Other than that
> you
> may want to set workersPerNode, but the other options are useless.
> 
> Then, when swift starts the coaster service, it will print the URL of
> that on stderr.
> 
> You carefully dig for worker.pl and then launch it in whatever way
> you
> like:
> 
> worker.pl <ServiceURL> <blockid> <logdir>
> 
> The blockid can be whatever you want, but it can be used to group
> workers in the traditional blocks. The logdir is where you want the
> worker logs to go. They are all mandatory.
> 
> When workers connect to the service, the service should start
> shipping
> jobs to them. When the service is shut down, it will also try to shut
> down the workers (they are useless anyway at that point), but it
> cannot
> control the LRM jobs, so it may fail to do so (or rather said, it is
> more likely to fail to do so).
> 
> Mihael
> 
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-- 
Michael Wilde
Computation Institute, University of Chicago
Mathematics and Computer Science Division
Argonne National Laboratory