Title :
Realtime data streaming and storing structure for LHD´s fusion plasma experiments
Author :
Nakanishi, H. ; Ohsuna, M. ; Kojima, M. ; Imazu, S. ; Nonomura, M. ; Emoto, M. ; Yoshida, M. ; Iwata, C. ; Ida, K.
Author_Institution :
Nat. Inst. for Fusion Sci., Gifu, Japan
Abstract :
HD (Large Helical Device) is a superconducting fusion experimental device which enables steady-state plasma sustainment. Its data system, namely “LABCOM system”, has been fully equipped with high-throughput realtime data acquisition (DAQ), streaming, and archiving capabilities [1][2]. To deal with more than 100 MB/s stream, large shared memory is primarily used for inter-process fast and massive data handlings. Multitasking and multithreaded subtasks are implemented for every I/O device in each DAQ frontend [3].
Keywords :
Tokamak devices; data acquisition; input-output programs; plasma toroidal confinement; superconducting devices; I/O device; LABCOM system; LHD fusion plasma experiments; Large Helical Device; Realtime data storing structure; handlings; high-throughput realtime data acquisition; inter-process fast data handlings; realtime data streaming; steady-state plasma sustainment; superconducting fusion experimental device; Data acquisition; Physics; Plasmas; Random access memory; Real-time systems; Steady-state;
Conference_Titel :
Real Time Conference (RT), 2014 19th IEEE-NPSS
Print_ISBN :
978-1-4799-3658-8
DOI :
10.1109/RTC.2014.7097484
