1. FJPPL Lyon, 13 March 2012 Sylvain Reynaud, Lionel Schwarz
Status of
FJPPL
Lyon, 13 March 2012
Sylvain Reynaud, Lionel Schwarz

2. Plan Overview of JSAGA Adaptors Standardization of Python bindings
New adaptors
New contributors
Standardization of Python bindings
Perspectives
JSAGA

3. Overview of JSAGA a Java implementation of the SAGA specification
focuses on
uniform usage of middleware…. (beyond what they natively support)
ease of extension……………….
efficiency and scalability……….
control of the API behavior (contexts bound to remote systems)
operating-system independency (tested on )
Under LGPL license
(thanks to the design of adaptor interfaces)
JSAGA

4. Layered software architecture
interface
Layered software architecture
implementation
Used by end users
web portals, GUI, CLI…
Used by application developers
a single uniform interface
object oriented, high-level
Implemented by adaptors
each "way" to implement a given feature has 1 interface
service oriented, low-level
Implemented by middleware
each technology has its own interfaces
user applications
SAGA
Java binding
core engine
JSAGA
adaptors interfaces
JSAGA
adaptors
JSAGA
middleware APIs
JSAGA

5. Supported technologies
Grid techno.
Others
Execution
gatekeeper
gLite-WMS
wsgram
BES
ARC
Genesis II
Unicore6
Cream
SSH
local
Batch SSH
Grid techno.
Others
Data
Logical
Physical
LFC
SRB
iRODS
Local catalog
gsiFTP
SRM
iRODS
HTTP
HTTPS
SFTP
SRB
file
ftp
zip
Unicore6
Grid techno.
Others
Security
in progress
done
InMemCred
Globus
G. Legacy
G. RFC820
MyProxy
VOMS
JKS
SSH
Login / pwd
X509
.netrc
Secret Svc

6. New contributors for JSAGA
From CHAIN
Diego Scardaci
OurGrid (Brazil and Latin America)
a Desktop Grid
Meng You
Grid Operating System for CNGRID (China) ?
GARUDA (India)
consortium
JSAGA

7. The SAGA specification
SAGA : the specification
a Simple API
for using Grid middleware
execution management
job submission, monitoring...
data management
transfer, list files, search…
service discovery …
in user Applications
implementations (or wrappers) exist for C++, Java and Python
…in a uniform way S A
use middlewares in a uniform way
(independent of middlewares) G
use functionalities in a uniform way
(consistent "look-and-feel") A
use language bindings in a similar way
(language-independent specification)
…but not yet uniform between Python implementations
JSAGA

8. SAGA Python bindings application application application JySAGA
(Java)
application
(Python)
application
(Python)
JySAGA
legacy python binding
JPySAGA
SAGA (Python)
SAGA interfaces (Python)
(C++)
SAGA interfaces (Java)
SAGA-CPP
JSAGA
Java SAGA
JSAGA

9. SAGA Python binding application application TO BE DONE JPySAGA JySAGA
(Java)
application
(Python)
SAGA interfaces (Python)
TO BE DONE
JPySAGA
JySAGA
legacy python binding
(C++)
SAGA interfaces (Java)
SAGA-CPP
JSAGA
Java SAGA
JSAGA

10. Standardization of Python binding
Based on PySAGA
Designed by Vrije University
Implemented by
JySAGA (Vrije University)
JPySAGA (CC-IN2P3)
OGF doc in progress
HTML (generated from commented python code)
PDF By
Julien Devemy (CC-IN2P3)
Mark Santcroos (CCT-LSU)
JSAGA

11. Perspectives Next adaptors Engine improvement Implement API extensions
Grid Engine
DRMAA-based
CLI-based, with SSH …
Engine improvement
adaptors isolation
ease integration of contributions
Implement API extensions
Service Discovery API
with plug-ins for technologies
BDII
with plug-ins for schemas
GLUE
CIM
Resource API
with plug-ins for pilot-jobs
DIRAC
with plug-ins for clouds
OpenNebula
openstack
JSAGA

12. Questions ?
JSAGA