www.lightsource.ca science studio and anise (jan 2010 update) elder matias canadian light source
TRANSCRIPT
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www.lightsource.ca
Science Studio and ANISE(Jan 2010 update)
Elder Matias
Canadian Light Source
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www.lightsource.ca
• Overview• Beamline Control Traditional Technology• Beamline Control – ScienceStudio • Nan-Fabrication – ScienceStudio• User Office• Grid Computing• User Configurable Light Paths
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Where is Saskatoon?
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Scientific American May 2008
Science 2.0 – The Risk and Reward of Web-Based Research
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“Our real mission isn’t to publish journals but to facilitate scientific communication” Timo Hannay – Head of Web Publishing at Nature Publishing Group
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What Is the Web 2.0?
• In plain English ….– Automating tedious tasks using web technology– Tools to help people and software collaborate
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Project Team Members
Dionisio Medrano
Dylan Maxwell
Dong Liu
Elder Matias
Chris Armstrong
Khalid Subratee
Jinhui Qin
Yuzhen Xie
Mike Bauer
Stewart McIntyre
Marina Suominen Fuller
Ludeng (Eric) Zhao
Yuhong Yan
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Goals of the Two Projects• Science Studio
– User Office Automation– Integrated Experiment Management– Remote Access to VESPERS (XRD and XRF)– Access Scanning Electron Microscope (UWO)– Grid Computing (Cell Processor)
• ANISE– Integrated Stream Computing to providing
near real-time data processing
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Beamline ControlTraditional Technology
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EPICS
DetectorsCameras etc.
ModbusTCP/IP
GPIB
RS-232
Channel A
ccess Protocol
IOC
IOC
IOC
IOC
State MachineEngine
CA
CA
CA
CA
CA
Single BoardComputer
CA
Operator WorkstationUser Applications
TouchPanels
CA
CA
Telemecanique Momentum PLC
VME
IOC
CA
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Beamline Controls Interfaces
• EPICS Tools • Configuration Tool• User GUI & ROOT
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Beamline Visualization
As Map
- Raster scan with fluorescence spectroscopy of a pine needle contaminated with arsenic. The technique allows multiple elements to be detected simultaneously at each point of the raster. These images show distributions of arsenic, iron, and manganese, respectively, near the tip. The highest intensity displays in red, lowest in blue.- Custom on-line plotting application scripted in CERN Root, with data stream from the CLS data acquisition application. (G. Wright, R. Igarashi, K. Chang-Yong, N. Chen)
Fe Map
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Traditional Beamline Visualization
Cross section views of the beam spot intensity distribution for varying degrees of monochromator detuning (50-80%). (Only one image shown).
(G. Wright, R. Igarashi, K. Chang-Yong, N. Chen)
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Beamline ControlScienceStudio Technology
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Requirements
• New User Office Functionality– Proposal submission– Peer review– User Feedback Tracking– Experiment Management– User Training/ Safety Testing
• Remote Beamline Access• Integration with grid data-storage• Grid computing
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Science Studio and ANISE
ProcessingService
DataServiceData
ServiceProcessing
Service
ANISE
Business ModelLayer
PersistenceLayer
DeviceProxies
Client ServicesLayer
BrowserBrowser
LaboratoryControl Module
ServiceProxies
Science Studio
LabatoryControl Module
IOCs
Beamline
IOCs
Beamline
General, commonComponent
XRD Processing
XRF Processing
Science Studio specificComponent
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System Architecture
WebApplication
BeamlineControlModule
DBSANSAN
JMS CA
VESPERS
HTTP
1. VESPERS Beamline2. EPICS control system3. Beamline Control Module (BCM)4. Web Application5. Database6. File Storage7. Web Interface
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VESPERS Beamline
• VESPERS — Very Sensitive Elemental and Structural Probe Employing Radiation from a Synchrotron
• A bending magnet beamline on sector 6 at the Canadian Light Source synchrotron in Saskatoon, Saskatchewan.
• A hard x-ray microprobe with an energy range of 6 to 30keV.
• Techniques: X-Ray Fluorescence (XRF) & X-Ray Diffraction (XRD)
WebApplication
BeamlineControlModule
DBSANSAN
JMS CA
VESPERS
HTTP
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EPICS Low-level Control System
• EPICS — Experimental Physics and Industrial Control System
• The standard control system at the CLS.
• EPICS consists of a network of Input-Output Controls (IOCs) which are connected to directly to devices.
• An IOC provides many Process Variables (PVs) which relate to either an input or output from a device and have a unique name.
• Channel Access (CA) is used to read or write to any PV without knowing which IOC provides the PV.
• More than 50,000 PVs in the CLS control system.
WebApplication
BeamlineControlModule
DBSANSAN
JMS CA
VESPERS
HTTP
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Beamline Control Module (BCM)
• The BCM provides a high-level interface to the low-level control system (EPICS).
• Logical and physical separation of business logic and control logic.
• Virtual device abstraction that provides independence from low-level control system.
• Virtual devices can be logically organized into a device hierarchy.
• Basic devices can be combined to build more functional devices.
• Communication with external applications using two message queues (ActiveMQ).
WebApplication
BeamlineControlModule
DBSANSAN
JMS CA
VESPERS
HTTP
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Web Application
• A J2EE Servlet application that provides a web-based interface Science Studio.
• Tools: Spring (MVC), iBATIS (ORM), JSecurity (Apache Ki), Apache Tomcat
• Divided into two parts: the Core application and the VESPERS beamline application.
• Core application is responsible for providing access to the business objects.
• VESPERS application is responsible for remote control of the VESPERS beamline.
WebApplication
BeamlineControlModule
DBSANSAN
JMS CA
VESPERS
HTTP
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Database
• Metadata associated with the operation of a remote controlled beamline and the organization of experimental data collected on that beamline.
• A project is the top level organizational unit and is associated with a project team.
• A session defines a period of time allocated to a project team to conduct experiments.
• An experiment relates a sample and the technique being applied to that sample.
• A scan records the location of the acquired experimental data.
WebApplication
BeamlineControlModule
DBSANSAN
JMS CA
VESPERS
HTTP
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Experimental Data Storage
• Experimental data is stored at the CLS.
• Common directory structure shared with other beamlines.
• A large data storage facility is now operational at the University of
Saskatchewan as part of WestGrid.
WebApplication
BeamlineControlModule
DBSANSAN
JMS CA
VESPERS
HTTP
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VESPERS Web Interface
• Rich web interface to Science Studio and the VESPERS beamline.
• Designed to be used over commodity broadband internet.
• Developed for the Firefox web browser without any additional plugins or extensions.
• Known to work with other browsers, but requires the Canvas HTML tag.
• AJAX is used for the VESPERS interface to provide device values in pseudo real time.
• ExtJS, a JavaScript framework, provides many advanced GUI elements.
WebApplication
BeamlineControlModule
DBSANSAN
JMS CA
VESPERS
HTTP
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Beamline Setup
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Experiment Setup
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XRF (X-Ray Fluorescence)
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Beamline Hutch Cameras
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Experimental Data Viewer
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ScienceStudio
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Scanning
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XRD Screen
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(a) X ray Fluorescence spectra and mapping
(b) Laue X ray Diffraction and mapping Orientation Strain
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VM strain
XRF Image XRD: orientation XRD:strain
Optical image
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University of Western OntarioNan-Fabrication Facility
Using ScienceStudio
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Nanofabrication Facility
The Western Nanofabrication Facility is an open user facility at the University of Western Ontario for the fabrication of micro and nano structures.
LEO 1540XB Scanning Electron Microscope (SEM) with an integrated Oxford x-ray system.
Oxford x-ray system is controlled by INCA.
INCA provides limited control of the SEM, and spectral analysis and quantification.
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Nanofab Integration Design
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Nanofab Implementation
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Initial Test: INCA Remotely
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User Office
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User Office Modules• User Profile/Authentication
– User Profile Deployed– User Roles Deployed– Authentication (LDAP/AD) Deployed
• Information Model– Beamlines Done– End-stations Done– Techniques Done
• Notification Module Deployed
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User Office Modules
• Proposal Submission In Progress• User Feedback Survey Prototype• Scheduling Module Prototype• Workflow Engine Evaluation• Sample Management
Requirements• Publication Tracking Requirements
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User Office - Training Module• First User Office Module Deployed• User Profile
• 1,400 + user records/accounts created
• Training Module– 53 Training Modules Setup and past user
records manually transferred
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Calendar view in JQuery
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User Office Workflow Example
Prototype Implementation1. CLS issues a call for proposals and gives deadline2. Beamline users submit proposals3. User Office administrator ends registration or extends deadline4. User Office administrator assigns proposals to user office reviewers5. Reviewers look at proposals and rank them6. User Office looks at ranking and chooses the proposals to accept7. Accepted proposals contact persons are notified8. Beamline User completes training (web service)9. After training is completed (simulated by a delay) the CLS is notified
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User Login
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Admin – Add Proposal
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Admin - Setup for Cycle
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Admin – Creating Roles
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Grid Computing
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HPC Computing in Canada
• Compute Canada– Responsible for High Performance Computing in Canada– Each regional grid is a member of Compute Canada
• ACEnet – Atlantic Canada• CLUMEQ - Quebec• SCINET - UofT• HPCVL – Queens, Royal Military Collage
St. Lawrence, Carlson, Ottawa, …• RQCHP - Quebec• SHARCNET - Ontario• WESTGRID – Western Canada
CLUMEQ Facility
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Grid Data Storage?
• UofS is the host for the new WestGrid data storage facility
• Cost: $3.2 M• Includes on-line and
archival storage• Two sites on campus
Photo: tape backup unit holding 6,000 tape (each @1TB)
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IBM Cell Processor (3.2 GHz)
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User Configurable Light Paths
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Lightpath Accelerator controls a software virtual cross-connect that commands UCLP.
Integrating LPA with User Configurable Light Paths
In effect, CA*Net4 is treated as a single lightpath cross-connect
real device real devicevirtual device
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File Transfer Demo