I see Amila’s point and can be argued that, Airavata Client can fetch experiment, modify what is needed and re-submit as a new experiment.
But I agree with Saminda, if an experiment has dozens of inputs and if say only parameter or scheduling info needs to be changes, cloning makes it useful. The challenge though is how to communicate what all needs to be changed? Should we assume anything explicitly not passed remains as original experiment and the ones passed are overridden? I think the word clone seems fine and also aligns with the Java Clone interpretation [1]. This brings up another question, should there be only create, launch, clone and terminate experiments or should we also have a configure experiment? The purpose of configure is to let the client slowly load up the object as it has the information and only launch it when it is ready. That way portals need not have an intermediate persistence for these objects and facilitate users to build an experiment in long sessions. Thought? Suresh [1] - http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html#clone() On Jan 17, 2014, at 2:05 PM, Saminda Wijeratne <[email protected]> wrote: > an experiment will not define new descriptors but rather point to an existing > descriptor(s). IMO (correct me if I'm wrong), > > Experiment = Application + Input value(s) for application + Configuration > data for managing job > > Application = Service Descriptor + Host Descriptor + Application Descriptor > > Thus for an experiment it involves quite the amount of data of which needs to > be specified. Thus it is easier to make a copy of it rather than asking the > user to specify all of the data again when only there are very few changes > compared to original experiment. Perhaps the confusion here is the word > "clone"? > > > On Fri, Jan 17, 2014 at 10:20 AM, Amila Jayasekara <[email protected]> > wrote: > This seems like adding new experiment definition. (i.e. new descriptors). > As far as I understood this should be handled at UI layer (?). For the > backend it will just be new descriptor definitions (?). > Maybe I am missing something. > > - AJ > > > On Fri, Jan 17, 2014 at 1:15 PM, Saminda Wijeratne <[email protected]> wrote: > This was in accordance with the CIPRES usecase scenario where users would > want to rerun their tasks but with subset of slightly different > parameters/input. This is particularly useful for them because their tasks > can include more than 20-30 parameters most of the time. > > > On Fri, Jan 17, 2014 at 6:49 AM, Sachith Withana <[email protected]> wrote: > Hi Amila, > > The use of the word "cloning" is misleading. > > Saminda suggested that, we would need to run the application in a different > host ( based on the users intuition of the host availability/ efficiency) > keeping all the other variables constant( inputs changes are also allowed). > As an example: if a job keeps failing on one host, the user should be allowed > to submit the job to another host. > > We should come up with a different name for the scenario.. > > > On Thu, Jan 16, 2014 at 11:36 PM, Amila Jayasekara <[email protected]> > wrote: > > > > On Thu, Jan 16, 2014 at 10:58 AM, Sachith Withana <[email protected]> wrote: > Hi All, > > This is the summary of the meeting we had Wednesday( 01/16/14) on the > Orchestrator. > > Orchestrator Overview > I Introduced the Orchestrator and I have attached the presentation herewith. > > Adding Job Cloning capability to the Orchestrator API > Saminda suggested that we should have a way to clone an existing job and run > it with different inputs or on a different host or both. Here's the Jira for > that.[1] > > I didnt quite understand what cloning does. Once descriptors are setup we can > run experiment with different inputs, many times we want. So what is the > actual need to have cloning ? > > Thanks > Thejaka Amila > > > Gfac embedded vs Gfac as a service > We have implemented the embedded Gfac and decided to use it for now. > Gfac as a service is a long term goal to have. Until we get the Orchestrator > complete we will use the embedded Gfac. > > Job statuses for the Orchestrator and the Gfac > We need to come up with multi-level job statuses. User-level, > Orchestartor-level and the Gfac-level statuses. Also the mapping between them > is open for discussion. We didn't come to a conclusion on the matter. We will > discuss this topic in an upcoming meeting. > > > [1] https://issues.apache.org/jira/browse/AIRAVATA-989 > > -- > Thanks, > Sachith Withana > > > > > > -- > Thanks, > Sachith Withana > > > >
