ICALEPCS2013 - List of Authors (Matsumoto, T.)

Paper

Title

Page

Real-Time Process Control on Multi-Core Processors

407

M. Ishii, Y. Furukawa, T. Matsumoto
JASRI/SPring-8, Hyogo-ken, Japan

A real-time control is an essential for a low level RF and timing system to have beam stability in the accelerator operation. It is difficult to optimize priority control of multiple processes with real-time class and time-sharing class on a single-core processor. For example, we can’t log into the operating system if a real-time class process occupies the resource of a single-core processor. Recently multi-core processors have been utilized for equipment controls. We studied the process control of multiple processes running on multi-core processors. After several tunings, we confirmed that an operating system could run stably under heavy load on multi-core processors. It would be possible to achieve real-time control required milliseconds order response under the fast control system such as an event synchronized data acquisition system. Additionally we measured the response performance between client and server processes using MADOCA II framework that is the next-generation MADOCA. In this paper we present about the tunings for real-time process control on multi-core processors and performance results of MADOCA II.

Poster MOPPC128 [0.450 MB]

MOPPC129

MADOCA II Interface for LabVIEW

410

Y. Furukawa, T. Fujita, M. Ishii, T. Matsumoto
JASRI/SPring-8, Hyogo-ken, Japan

LabVIEW is widely used for experimental station control in SPring-8. LabVIEW is also partially used for accelerator control, while most software of the SPring-8 accelerator and beamline control are built on MADOCA control framework. As synchrotron radiation experiments advances, there is requirement of complex data exchange between MADOCA and LabVIEW control systems which was not realized. We have developed next generation MADOCA called MADOCA II, as reported in this ICALEPCS (T.Matsumoto et.al.). We ported MADOCA II framework to Windows and we developed MADOCA II interface for LabVIEW. Using the interface, variable length data can be exchanged between MADOCA and LabVIEW based softwares. As a first application, we developed a readout system for an electron beam position monitor with NI's PCI-5922 digitizers. A client software sends a message to a remote LabVIEW based digitizer readout software via the MADOCA II midlleware and the readout system sends back waveform data to the client. We plan to apply the interface various accelerator and synchrotron radiation experiment controls.

TUCOCB01

Next-Generation MADOCA for The SPring-8 Control Framework

944

T. Matsumoto, Y. Furukawa, M. Ishii
JASRI/SPring-8, Hyogo-ken, Japan

MADOCA control framework* was developed for SPring-8 accelerator control and has been utilized in several facilities since 1997. As a result of increasing demands in controls, now we need to treat various data including image data in beam profile monitoring, and also need to control specific devices which can be only managed by Windows drivers. To fulfill such requirements, next-generation MADOCA (MADOCA II) was developed this time. MADOCA II is also based on message oriented control architecture, but the core part of the messaging is completely rewritten with ZeroMQ socket library. Main features of MADOCA II are as follows: 1) Variable length data such as image data can be transferred with a message. 2) The control system can run on Windows as well as other platforms such as Linux and Solaris. 3) Concurrent processing of multiple messages can be performed for fast control. In this paper, we report on the new control framework especially from messaging aspects. We also report the status on the replacement of the control system with MADOCA II. Partial control system of SPring-8 was already replaced with MADOCA II last summer and has been stably operated.
*R.Tanaka et al., “Control System of the SPring-8 Storage Ring”, Proc. of ICALEPCS’95, Chicago, USA, (1995)

Slides TUCOCB01 [2.157 MB]

Paper	Title	Page
MOPPC128	Real-Time Process Control on Multi-Core Processors	407
	M. Ishii, Y. Furukawa, T. Matsumoto JASRI/SPring-8, Hyogo-ken, Japan
	A real-time control is an essential for a low level RF and timing system to have beam stability in the accelerator operation. It is difficult to optimize priority control of multiple processes with real-time class and time-sharing class on a single-core processor. For example, we can’t log into the operating system if a real-time class process occupies the resource of a single-core processor. Recently multi-core processors have been utilized for equipment controls. We studied the process control of multiple processes running on multi-core processors. After several tunings, we confirmed that an operating system could run stably under heavy load on multi-core processors. It would be possible to achieve real-time control required milliseconds order response under the fast control system such as an event synchronized data acquisition system. Additionally we measured the response performance between client and server processes using MADOCA II framework that is the next-generation MADOCA. In this paper we present about the tunings for real-time process control on multi-core processors and performance results of MADOCA II.
	Poster MOPPC128 [0.450 MB]

MOPPC129	MADOCA II Interface for LabVIEW	410
	Y. Furukawa, T. Fujita, M. Ishii, T. Matsumoto JASRI/SPring-8, Hyogo-ken, Japan
	LabVIEW is widely used for experimental station control in SPring-8. LabVIEW is also partially used for accelerator control, while most software of the SPring-8 accelerator and beamline control are built on MADOCA control framework. As synchrotron radiation experiments advances, there is requirement of complex data exchange between MADOCA and LabVIEW control systems which was not realized. We have developed next generation MADOCA called MADOCA II, as reported in this ICALEPCS (T.Matsumoto et.al.). We ported MADOCA II framework to Windows and we developed MADOCA II interface for LabVIEW. Using the interface, variable length data can be exchanged between MADOCA and LabVIEW based softwares. As a first application, we developed a readout system for an electron beam position monitor with NI's PCI-5922 digitizers. A client software sends a message to a remote LabVIEW based digitizer readout software via the MADOCA II midlleware and the readout system sends back waveform data to the client. We plan to apply the interface various accelerator and synchrotron radiation experiment controls.

TUCOCB01	Next-Generation MADOCA for The SPring-8 Control Framework	944
	T. Matsumoto, Y. Furukawa, M. Ishii JASRI/SPring-8, Hyogo-ken, Japan
	MADOCA control framework* was developed for SPring-8 accelerator control and has been utilized in several facilities since 1997. As a result of increasing demands in controls, now we need to treat various data including image data in beam profile monitoring, and also need to control specific devices which can be only managed by Windows drivers. To fulfill such requirements, next-generation MADOCA (MADOCA II) was developed this time. MADOCA II is also based on message oriented control architecture, but the core part of the messaging is completely rewritten with ZeroMQ socket library. Main features of MADOCA II are as follows: 1) Variable length data such as image data can be transferred with a message. 2) The control system can run on Windows as well as other platforms such as Linux and Solaris. 3) Concurrent processing of multiple messages can be performed for fast control. In this paper, we report on the new control framework especially from messaging aspects. We also report the status on the replacement of the control system with MADOCA II. Partial control system of SPring-8 was already replaced with MADOCA II last summer and has been stably operated. *R.Tanaka et al., “Control System of the SPring-8 Storage Ring”, Proc. of ICALEPCS’95, Chicago, USA, (1995)
	Slides TUCOCB01 [2.157 MB]