Andre, I do not think that the attribute 'SAGA_HostList' of JobDefinition is appropriate either. The description of 'SAGA_HostList' in the strawman API reads: SAGA_HostList - A list of host names, or host group names, which can be considered by the resource manager as candidate hosts for the job. Whether or not the job actually ends up running on one of the hosts in the list, is solely at the discretion of the resource manager. Vector of strings. (JSDL, LSF) This attribute should be used to pass information to the resource manager, NOT to specify the resource manager. For example it maps to the "CandidateHosts" element of a JSDL document. The first argument of runJob() is the "host name or IP address of the endpoint which will accept and run the job". This argument is not defined for submitJob(), nor is it defined as an attribute of JobDefinition. Graeme Andre Merzky wrote:
Oops, you are right! My wrong - mixed it up with ExecutionHosts. Well, then I really was off target: SAGA_HostList is then indeed what you should use to specify the target resource.
The run_job would, in its simpliest implementation, create a job description with SAGA_HostList set to the specified endpoint, and do a submit_job on that description.
Sorry for creating confusion...
Andre.
Quoting [Graeme Pound] (Feb 20 2006):
Date: Mon, 20 Feb 2006 16:24:32 +0000 From: Graeme Pound <G.E.POUND@soton.ac.uk> To: Andre Merzky <andre@merzky.net> CC: SAGA RG <saga-rg@ggf.org> Subject: Re: [saga-rg] JobService.submitJob() query
Andre,
'SAGA_HostList' is on the job, and read only - it gives information on where the job _is_ running, not where it _should_ run. I do not follow you here. 'SAGA_HostList' is an attribute of JobDefinition (not JobInfo), therefore it should not be read only.
Graeme
Andre Merzky wrote:
Uhm, I think you got us there. I don't see any way to specify the resource either, so its left completely up to the backend to schedule the job. I am not sure if that was intended.
Chris, are we missing something? Did we intend to leave resource specification out? Can't really be, as we have it in run_job as Graeme points out...
'SAGA_HostList' is on the job, and read only - it gives information on where the job _is_ running, not where it _should_ run.
Andre.
Quoting [Graeme Pound] (Feb 20 2006):
Hi,
Can anybody clear up this issue for me? I may be missing something in the spec.
Thanks, Graeme
-3.31 How is the resource manager endpoint for JobService.submitJob() specified?
The endpoint is specified by an argument of JobService.runJob(), but is not _obvious_ for submitJob(). Is the endpoint a property of the instance of JobService (with runJob() a 'static' method of the class), or is the endpoint specified as an attribute of JobDefinition?
I assume that the contents of the JobDefinition attribute 'SAGA_HostList' is intended to be passed to the resource manager (rather than specify the resource manager itself); for example mapping to the 'CandidateHosts' element of a JSDL document. Is an additional attribute within JobDefinition required to specify the endpoint?