PCaPAC2016 - List of Keywords (status)

Paper	Title	Other Keywords	Page
WEUIPLCO04	A Cython Interface to EPICS Channel Access for High-level Python Applications	ion, operation, interface, EPICS	21
	J.T.M. Chrin PSI, Villigen PSI, Switzerland
	Through the capabilities of Cython (a python-like programming language with the performance of C/C++), a Pythonic interface to an in-house C++ Channel Access (CA) library, CAFE, has been developed, thereby exposing CAFE's numerous multifaceted and user-friendly methods to Python application developers. A number of particularities of the PyCafe API are revealed. These include support for (i) memoryview and other data types that implement the new Python buffer protocol (allowing data to be shared without copying), (ii) native thread parallelism, and (iii) pointers to callback functions from wherein CA methods may be effortless executed in asynchronous interactions. A significant performance improvement is achieved when compared with conventional Pythonic CA libraries. The PyCafe interface has been realized within the context of high-level application development at SwissFEL, Switzerland's X-ray Free-Electron Laser facility.
	Slides WEUIPLCO04 [3.670 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-PCaPAC2016-WEUIPLCO04
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

WEPOPRPO23	Beamline Supervisory System Using a Low-Cost Single-Board Computer	ion, PLC, storage-ring, software	50
	G.T. Semissatto, H.F. Canova, F.H. Cardoso, J. Souza LNLS, Campinas, Brazil
	Sirius is the new accelerator facility, under construction at the LNLS (Brazilian National Synchrotron Light La-boratory) site, in Campinas, São Paulo. The new machine is a 3 GeV, low emittance storage ring designed to ac-commodate up to 40 experimental stations. During beam-line operation, supervisory systems are an important tool to provide information about machine status and beam-line operation modes for the beamline's users. A modern TV based broadcast system was developed to meet this application, using low-cost single board computers with an interface to EPS/PPS system. The details about hard-ware, software configuration, user's requirements as well suggestions on further improvements, will be presented.
	Poster WEPOPRPO23 [1.261 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-PCaPAC2016-WEPOPRPO23
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

Paper

Title

Other Keywords

Page

WEUIPLCO04

A Cython Interface to EPICS Channel Access for High-level Python Applications

ion, operation, interface, EPICS

21

J.T.M. Chrin
PSI, Villigen PSI, Switzerland

Through the capabilities of Cython (a python-like programming language with the performance of C/C++), a Pythonic interface to an in-house C++ Channel Access (CA) library, CAFE, has been developed, thereby exposing CAFE's numerous multifaceted and user-friendly methods to Python application developers. A number of particularities of the PyCafe API are revealed. These include support for (i) memoryview and other data types that implement the new Python buffer protocol (allowing data to be shared without copying), (ii) native thread parallelism, and (iii) pointers to callback functions from wherein CA methods may be effortless executed in asynchronous interactions. A significant performance improvement is achieved when compared with conventional Pythonic CA libraries. The PyCafe interface has been realized within the context of high-level application development at SwissFEL, Switzerland's X-ray Free-Electron Laser facility.

Slides WEUIPLCO04 [3.670 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-PCaPAC2016-WEUIPLCO04

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

WEPOPRPO23

Beamline Supervisory System Using a Low-Cost Single-Board Computer

ion, PLC, storage-ring, software

50

G.T. Semissatto, H.F. Canova, F.H. Cardoso, J. Souza
LNLS, Campinas, Brazil

Sirius is the new accelerator facility, under construction at the LNLS (Brazilian National Synchrotron Light La-boratory) site, in Campinas, São Paulo. The new machine is a 3 GeV, low emittance storage ring designed to ac-commodate up to 40 experimental stations. During beam-line operation, supervisory systems are an important tool to provide information about machine status and beam-line operation modes for the beamline's users. A modern TV based broadcast system was developed to meet this application, using low-cost single board computers with an interface to EPS/PPS system. The details about hard-ware, software configuration, user's requirements as well suggestions on further improvements, will be presented.

Poster WEPOPRPO23 [1.261 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-PCaPAC2016-WEPOPRPO23

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)