Speaker
Mr
Shih-Chun Chiu
(ASGC, Taiwan)
Description
The main goal of the project is to extend gLite to Microsoft
Compute Cluster Server
(CCS) platform, with the first phase to make CCS as the work
node of gLite
infrastructure.. Heterogeneity is the beauty of Grid, but
still a milestone to reach.
To integrate the large population of Windows-based resources
into the Grid world
through Grid services is also essential to acquire more
momentum from the industry
and from the grass-roots. In general, we successfully make
CCS nodes running jobs
from gLite resource broker and Windows jobs are able to
execute natively under the
control of gLite as well.
The main challenges of this project stem from the essence of
Unix and Windows. For
example, gLIte makes use of plenty of shell scripts for
wrapping end users’ job
descriptions to meet the target environment and get
dispatched and executed on the
fly, but we are short of such flexible tools in Windows. Job
profiles have to be
re-compiled for Windows. For the bridge of gLite and CCS, we
take advantage of gLite
CE’s BLAHP interface, an abstract layer for underlying
queuing systems.A set of API
and tools were developed upon BLAHP to let jobs submitted
from each side. . Job
submission approach is persistent as the gLite way entirely.
To demonstrate the
effectiveness of our works, BLAST and virtual screening
applications were ported and
tested with success. In the future, we plan to have the
proxy delegation to Windows
nodes, GSI-based data transmission in Windows, and the fully
compatible storage
element could be developed in the next phase.
Author
Mr
Shih-Chun Chiu
(ASGC, Taiwan)
Co-authors
Mr
Hui-Min Lin
(ASGC, Taiwan)
Ms
Pei-Ying Yao
(ASGC, Taiwan)
