[kepler-users] Serpens suite for Kepler

[Tomasz Żok]

Dear All,

We are happy to announce the availibility of Serpens suite in Kepler  
module manager (it supports grid workflow execution). Serpens contains  
three modules additional to regular Kepler release.

1) The first module is responsible for cooperation with gLite  
middleware, the widely adopted grid middleware. Using a set of actors  
and ready template workflows, you can build solutions ranging from  
single jobs to numerous range-scan parametric jobs. The actors  
available in the module lets you:
* List available services for given grid virtual organisation.
* Upload and download many files in parallel.
* Prepare, submit and resubmit jobs.
* Manage jobs.


2) The second module is a bridge to UNICORE grid middleware. A set of  
Kepler actors perform basic operations using UNICORE services. Their  
combination gives the possibility to build complex and featureful  
workflows.

Namely, the actors in the module allow to:
* Query UNICORE registry and obtain information about available resources.
* Upload/download data to/from UNICORE storage.
* Submit jobs into UNICORE sites.
* Check statuses of the running jobs.
* Retrieve Standard Output and Standard Error of UNICORE job.
* Retrieve UNICORE job output generated by application started at  
remote machine.


3) The last module contains actors useful in communication with  
Vine::Toolkit services. Vine::Toolkit gathers several grid middleware  
access libraries under a uniform set of operations.

Again, actors available range from information getters to action executors.


Serpens and its modules are released officially as a 2.2.1 version.  
Recently, UNICORE module was released independetly as a minor version  
upgrade - 2.3.0. This new release allows to communicate with UNICORE  
server on a BES (Basic Execution Services) interface and enhances  
security.

The module comes with documentation of every actor and examples  
ranging from basic operations to a full-featured workflow: from input  
preparation, job submission and monitoring to the final step of output  
retrieval.


We would like to thank Ilkay Altintas, Jianwu Wang and SDSC in general  
for help and support during the whole process of successful release  
cycle.

Best regards,
Marcin, Michal and Tomek

-- 
Tomasz Zok
Poznan Supercomputing and Networking Center
ul. Noskowskiego 10, 61-704 Poznan, POLAND
http://www.man.poznan.pl

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