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R1-2. Control, Data Acquisition, Data Analysis and Remote Participation. in LHD. LHD building. Refrigerator compressor for liquid He. Supercomputer building. on behalf of LHD group N ational I nstitute for F usion S cience (NIFS), 322-6 Oroshi, Toki 509-5292, Japan. Office Buildings.
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R1-2 Control, Data Acquisition, Data Analysis and Remote Participation in LHD LHD building Refrigerator compressor for liquid He Supercomputer building on behalf of LHD groupNational Institute for Fusion Science (NIFS), 322-6 Oroshi, Toki 509-5292, Japan Office Buildings LHD Control building Building for Diagnostics Development Guest House Y. Nagayama Baseball park Tennis court NIFS site: 470,000m2 Y. Nagayama, et al., 6th IAEA-TM "Control, Data Acquisition, Remote Participation", 4-8 June 2007, Inuyama, Japan 6th IAEA-TM "Control, Data Acquisition, Remote Participation", 4-8 June 2007, Inuyama, Japan 1/28
Co-authors Related Presentations Control of Plasma/Device • Saito: P1-14 • Ito: P1-15 • Kasahara: P1-16 • Kubo: P1-17 • Chikaraishi: P1-18 • Miyazawa: P1-19 Data Acquisition/Database • Takahashi: P2-14 • Ohsuna: P2-15 • Nakanishi: P2-20 • Kojima: P2-21 Data Analysis • Emoto: O5-4 Fast Network/Remote Participation • Yamamoto: P1-38 • Tsuda: O9-1 M. Emoto, H. Nakanishi, S. Sudo, S. Imazu, S. Inagaki*, C. Iwata, M. Kojima, M. Nonomura, M. Ohsuna, M. Yoshida, K. Tsuda, H. Chikaraishi, H. Funaba, R. Horiuchi, S. Ishiguro, Y. Ito, S. Kubo, A. Mase*, T. Mito, J. Miyazawa, T. Muto, Y. Nakamura, K. Saito, R. Sakamoto, T. Seki, S. Takami, T. Yamamoto, T. Watanabe, A. Komori, O. Motojima and LHD Group NIFS, *Kyushu Univ. 6th IAEA-TM "Control, Data Acquisition, Remote Participation", 4-8 June 2007, Inuyama, Japan
Outline LHD Control and Data • LHD • Control • Steady state • high desity • Data acquisition • PC cluster (90GB/shot) • MSS • Data analysis • GUI • Web browser of Supercomputer • Remote Participation • Japanese Fusion Virtual Laboratory Y. Nagayama, et al., 6th IAEA-TM "Control, Data Acquisition, Remote Participation", 4-8 June 2007, Inuyama, Japan 6th IAEA-TM "Control, Data Acquisition, Remote Participation", 4-8 June 2007, Inuyama, Japan 3/28
Large Helical Device (LHD) is a steady sate machine. • LHD has a heliotron configuration. • A twisted plasma is confined in closed flux surfaces. • No current, no disruption, super high density. • Control, data acquisition and real time monitoring are challenging. Magnetic field Flux surfaces Cross sections of LHD 6th IAEA-TM "Control, Data Acquisition, Remote Participation", 4-8 June 2007, Inuyama, Japan
Objective of LHD is to clarify physics of fusion relevant plasma in steady state. For this purpose, we are developing: • Superconducting magnet, High power heating (ECH, ICH, NBI) • Plasma control (divertor, density, wall, position, ) and diagnostics • Obtained plasma parameters: • Ti0=5keV (ne=1.2x1019m-3) • Te0=10keV (ne=0.5x1019m-3) • beta=5% • ne0=1021 m-3 (Te0=0.4 keV) • Wp=1.44 MJ • Tpulse=3,268 sec. • (PICH+ECH=0.5 MW, Wheat=1.6GJ) 6th IAEA-TM "Control, Data Acquisition, Remote Participation", 4-8 June 2007, Inuyama, Japan
Plasma Production for 3268 sec with ICH Kasahara: P1-16 • Steady state plasma is maintained mainly by ICH. • Total input energy is 1.6 GJ (world record). • Magnetic axis is swung (3.65m<Rax< 3.67m) every 105 s to reduce the temperature rise of diverter plate. 6th IAEA-TM "Control, Data Acquisition, Remote Participation", 4-8 June 2007, Inuyama, Japan
Kubo: P1-17 Saito: P1-14 Kasahara: P1-16 Chikaraishi: P1-18 Miyazawa: P1-19 Control of superconducting magnets, plasma position, ECH/ICRF heating and density in LHD 6th IAEA-TM "Control, Data Acquisition, Remote Participation", 4-8 June 2007, Inuyama, Japan
Liquid impedance matching system of ICRF Heating in LHD • Four antennas are connected to RF generators (38.47MHz, 0.5MWx4, 1 hour). • Feedback control of the liquid impedance matching system reduces reflected power drastically (fro 70% to 2%). Saito: P1-14 Kasahara: P1-16 6th IAEA-TM "Control, Data Acquisition, Remote Participation", 4-8 June 2007, Inuyama, Japan
Diffusion barrier made with H2 pellet Injection1021 m-3 plasma is obtained! It’s a miracle! • Why no disruption nor the radiation collapse takes place? • LHD plasma may expel impurities. H2 ice pellet Sakamoto 6th IAEA-TM "Control, Data Acquisition, Remote Participation", 4-8 June 2007, Inuyama, Japan
Growing number of diagnostics requires the PC cluster technology for a data acquisition system • PC cluster system (LABCOM system) has benefits • Cost effective • Flexible • Key technology of PC cluster system: • Data management • Maintenance 2005 for Short pulse DAQ for Steady state DAQ Nakanishi: P2-20 Kojima: P2-21 Ohsuna: P2-15 6th IAEA-TM "Control, Data Acquisition, Remote Participation", 4-8 June 2007, Inuyama, Japan
Simple PC cluster system does not work. • Data should be migrated from DAQ PC to the long term data storage (DVD?). • Where is the data? • How to get it? 6th IAEA-TM "Control, Data Acquisition, Remote Participation", 4-8 June 2007, Inuyama, Japan
PC cluster system requires a index server. Kojima: P2-21 • Index server provides Where, What, and How, which are stored in the relational database (RDB). Index Server (Relational Database) where, what, how • Data acquisition PCs write the information of data to the relational data base in the index server. • Clients access the index server and take the data as the index server instructs. 6th IAEA-TM "Control, Data Acquisition, Remote Participation", 4-8 June 2007, Inuyama, Japan
LABCOM system (2005 Model) • Acquired data is compressed by the DAQ-PC, and migrates to RAIDs. • Data in RAIDs migrates to Jukeboxes every night. • Place of data is registered in the relational database in the index server. • Expansion of storage is limited due to: • Migration time of 3 layers storages • Too many servers, because each RAID has each server. 6th IAEA-TM "Control, Data Acquisition, Remote Participation", 4-8 June 2007, Inuyama, Japan
Distributed Mass Storage System (MSS) using Storage Area Network (SAN) with Fibre-Channel (FC) switch Kojima: P2-21 • FC-SAN enhances the flexibility of the data server. • A few servers can control many RAIDs. • Data migration from RAID to Jukebox is fast. 6th IAEA-TM "Control, Data Acquisition, Remote Participation", 4-8 June 2007, Inuyama, Japan
LABCOM system (2007 Model)Distributed Mass Storage System on Fibre-Channel Storage Area Network • Compression: ZLIB (1-D data), JPEG-LS(2-D data) • Free software: LINUX (from Windows), PostgreSQL (from ObjectStore), • DAQ Box: a small PC without disk and fan (from Server PC) • Compact timing demodulator made of FPGA (from VME) Nakanishi: P2-20 Kojima: P2-21 Ohsuna: P2-15 Imazu OLD 6th IAEA-TM "Control, Data Acquisition, Remote Participation", 4-8 June 2007, Inuyama, Japan
Real time data acquisition and monitoring • Data sampled with WE7000 or cPCI are stored in the memory block. • Thinned data stream are sent to WEB browser to monitor in real time. • Sliced full data set can be taken after the plasma shot. 80MB/s Redraw every 0.1sec request H. Nakanishi K. Emoto M. Kojima M. Ohsuna S. Imazu M. Yoshida 6th IAEA-TM "Control, Data Acquisition, Remote Participation", 4-8 June 2007, Inuyama, Japan
Progress of data acquisition Nakanishi: P2-20 Kojima: P2-21 Ohsuna: P2-15 • LABCOM system takes LHD data of 90GB/shot. • LABCOM system will be extended to the ITER level (1000GB/shot). 6th IAEA-TM "Control, Data Acquisition, Remote Participation", 4-8 June 2007, Inuyama, Japan
NIFS serves to 450 collaborators. • Collaborator’s lord should be reduced. • To serve collaborators is challenging: • Easy tools to view and analyze data • WEB GUI of supercomputer • Remote participation system (Virtual Laboratory) Rokkasho site SNET Japanese Virtual Laboratory for Fusion Tsuda: O9-1 6th IAEA-TM "Control, Data Acquisition, Remote Participation", 4-8 June 2007, Inuyama, Japan
Collaborators need easy access. • A calculation server “Egcalc” provides easy data handling system. • Collaborators use standard software “X-window”. Collaborator’s PC • Collaborator’s effort should be minimized • Installation of LHD soft wares • Learning LHD computer system X-window NIFS User’s PC “Egcalc” Original Codes (Fortran, C, PV-Wave, IDL) Client Software Client Software Standard Viewer MSS Index Server MSS Index Server LABCOM raw data server LABCOM raw data server Emoto: O5-4 6th IAEA-TM "Control, Data Acquisition, Remote Participation", 4-8 June 2007, Inuyama, Japan
GUI Browsers of LHD Data in X-windowNo software but X-window is required in user’s PC. • GLABCOMV: Fortran95 code. Fast enough to view raw data. • CHRONOUS: PERL+GRACE. Easy artwork to make viewgraphs. GLABCOMV: Viewer of Raw data CHRONOUS : Viewer of Physics data S. Inagaki M. Yoshida C. Iwata 6th IAEA-TM "Control, Data Acquisition, Remote Participation", 4-8 June 2007, Inuyama, Japan
High level data analysis system with WEB • High level computer codes can be used with the WEB browser. • Using the secure shell (SSH), the job is submitted to the supercomputer. • Using the portable batch system (PBS), batch jobs are managed in PC cluster. • Noticed by e-mail, user takes the result from calculation server. • Data viewers on X-window • GLABCOMV • CHRONOUS Emoto: O5-4 6th IAEA-TM "Control, Data Acquisition, Remote Participation", 4-8 June 2007, Inuyama, Japan
LHD Relational Database on WEB WEB address Search key input Select Display Items Link to Video & Waveform • Timing of • NBI, ICH • Pellet • Gas puff Excel Table Output • LHD shots can be searched on the WEB site using relational database system (PostgreSQL). K. Emoto M. Yoshida 6th IAEA-TM "Control, Data Acquisition, Remote Participation", 4-8 June 2007, Inuyama, Japan
WEB calculator of LHD field lines on PC Cluster WEB browser Results • Users can easily calculate LHD field line trace with WEB like “Internet shopping”. • The result, which is heavy, is taken by FTP from “Egcalc” to user’s PC. e-mail configuration Coil current is calculated. T. Watanabe M. Emoto H. Yoshida 6th IAEA-TM "Control, Data Acquisition, Remote Participation", 4-8 June 2007, Inuyama, Japan
WEB GUI of transport analysis code on supercomputer Emoto: O5-4 • Physicists can operate a transport code “PROCTER”, which uses PERL to manage Fortran codes on supercomputer. • Both input data and results can be seen on WEB. WEB browser Results M. Emoto H. Funaba S. Murakami 6th IAEA-TM "Control, Data Acquisition, Remote Participation", 4-8 June 2007, Inuyama, Japan
N ational I nstitute for Fusion S cience Kyushu University Control Room KASTEC Diagnostic Control Server Diagnostic Control Client GPIB USR System Main Building Function Generator 1F Shielde d Box Impulse Generator Power Supply Waveguide Trigger Sampling Scope Low Noise Amplifier Receiver To Plasma 2F Shield Box Transmitter Japanese Virtual Laboratory for FusionRemote station is a LHD control room. • In the remote station at Kyushu Univ, they can operate a LHD diagnostic device “USR” and participate the LHD experiment. SUPER-SINET A. Mase Tsuda: O9-1 at Kyushu University 6th IAEA-TM "Control, Data Acquisition, Remote Participation", 4-8 June 2007, Inuyama, Japan
Japanese Virtual Laboratory for Fusion Tsuda: O9-1 Urushidani: O3-1 Yamamoto: P1-38 • Using the multi protocol label switching-virtual private network (MPLS-VPN) technology on SINET3, a virtual closed network is constructed. 6th IAEA-TM "Control, Data Acquisition, Remote Participation", 4-8 June 2007, Inuyama, Japan
World Fusion Virtual Laboratory: from LHD to ITER • Technology of Japanese Virtual Laboratory for Fusion will be useful to construct the ITER remote participation center. ITER Remote participation center (Rokkasho site) ITER Urushidani: O3-1 Yamamoto: P1-38 6th IAEA-TM "Control, Data Acquisition, Remote Participation", 4-8 June 2007, Inuyama, Japan
Summary • Plasma control in LHD: • Steady state operation (~1 hours). • High density core plasma (~1021 m-3). • LABCOM: PC cluster based data acquisition system • 70 data acquisition PC, ~100 GB/shot • Index server (relational database) manages data in PC-cluster. • Fibre-Channel Storage Area Network for the Mass Storage System. • High level data analysis system: for collaborators • GUI data viewers on X-window • Real time data monitor on WEB • WEB for super-computing • Japanese Fusion Virtual Laboratory: • Closed network using the multi protocol label switching-virtual private network (MPLS-VPN) technology • LHD remote participation and supercomputing 6th IAEA-TM "Control, Data Acquisition, Remote Participation", 4-8 June 2007, Inuyama, Japan