1269929 SzGeCERN 20220817152435.0 oai:cds.cern.ch:1269929 cerncds:CERN DOI 10.1088/1742-6596/219/2/022004 SPIRES 8695326 Inspire 859495 eng Chapeland, S CERN AUTHOR|(CDS)2069575 #BEARD# Online processing in the ALICE DAQ The detector algorithms 2010 ALICE (A Large Ion Collider Experiment) is the heavy-ion detector designed to study the physics of strongly interacting matter and the quark-gluon plasma at the CERN Large Hadron Collider (LHC). Some specific calibration tasks are performed regularly for each of the 18 ALICE sub-detectors in order to achieve most accurate physics measurements. These procedures involve events analysis in a wide range of experimental conditions, implicating various trigger types, data throughputs, electronics settings, and algorithms, both during short sub-detector standalone runs and long global physics runs. A framework was designed to collect statistics and compute some of the calibration parameters directly online, using resources of the Data Acquisition System (DAQ), and benefiting from its inherent parallel architecture to process events. This system has been used at the experimental area for one year, and includes more than 30 calibration routines in production. This paper describes the framework architecture and the synchronization mechanisms involved at the level of the Experiment Control System (ECS) of ALICE. The software libraries interfacing detector algorithms (DA) to the online data flow, configuration database, experiment logbook, and offline system are reviewed. The test protocols followed to integrate and validate each sub-detector component are also discussed, including the automatic build system and validation procedures used to ensure a smooth deployment. The offline post-processing and archiving of the DA results is covered in a separate paper. CC-BY publication SzGeCERN Computing and Computers ARTICLE CERN CERN LHC ALICE Altini, V INFN, Bari AUTHOR|(CDS)2070936 #BEARD# Carena, F CERN AUTHOR|(CDS)2071197 #BEARD# Carena, W CERN AUTHOR|(CDS)2108533 #BEARD# Chibante Barroso, V CERN AUTHOR|(CDS)2067902 #BEARD# Costa, F CERN Divia, R CERN AUTHOR|(CDS)2069499 #BEARD# Fuchs, U CERN Makhlyueva, I CERN Moscow, ITEP Roukoutakis, F CERN Athens U. AUTHOR|(CDS)2051325 #BEARD# Schossmaier, K CERN Soos, C CERN AUTHOR|(CDS)2068301 #BEARD# Vande Vyvre, P CERN von Haller, B CERN AUTHOR|(CDS)2069102 #BEARD# PH Alice Collaboration 022004 J. Phys.: Conf. Ser. 219 2010 h 201022 a2010 13 20100901 1608 CER01 20100604 993686 022004 prague20090321 PUBLIC 002901204CER ARTICLE ConferencePaper 1177365 SzGeCERN 20220817153719.0 oai:cds.cern.ch:1177365 cerncds:CERN 10.1088/1742-6596/119/2/022016 DOI SPIRES 8059853 Inspire 803007 eng Carena, F CERN AUTHOR|(CDS)2071197 #BEARD# The ALICE DAQ Online transient data storage system 2008 ALICE is a dedicated heavy-ion detector to exploit the physics potential of nucleus-nucleus (lead-lead) interactions at LHC energies. Running in heavy-ion mode the data rate from event building to permanent storage is expected to be around 1.25 GB/s. To continue data recording even in the event of hardware failure or connection problems, a large disk pool has been installed at the experiment's site as buffering layer between the DAQ and the remote (~5km) tape facility in the CERN Computing Centre. This Transient Data Storage (TDS) disk pool has to provide the bandwidth to be able to simultaneously absorb data from the event building machines and to move data to the tape facility. The aggregated bandwidth of the TDS is expected to exceed 3 GB/s in mixed I/O traffic. Extensive tests have been carried out on various hardware and software solutions with the goal to build a common file space shared by ~60 clients, whilst still providing maximum bandwidth per client (~400MB/s, 4Gbps Fibre Channel), fail-over safety and redundancy. This paper will present the chosen hardware and software solution, the configuration of the TDS pool and the various modes of operation in the ALICE DAQ framework. It will also present the results of the performance tests carried out during the last ALICE Data Challenge. CC-BY publication SzGeCERN Computing and Computers ARTICLE CERN CERN LHC ALICE Carena, W CERN AUTHOR|(CDS)2108533 #BEARD# Chapel, S CERN Divià, R CERN Fuchs, U CERN Makhlyueva, I CERN Schossmaier, K CERN Soós, C CERN Vyvre, P V CERN PH-EP 022016 J. Phys.: Conf. Ser. 119 2008 h 200920 a2008 13 20100901 1608 CER01 20090514 947732 022016 victoria20070902 PUBLIC 002820815CER ARTICLE ConferencePaper 1177132 SzGeCERN 20220817153657.0 oai:cds.cern.ch:1177132 cerncds:CERN 10.1088/1742-6596/119/2/022006 DOI SPIRES 8059780 Inspire 803000 eng Anticic, T Boskovic Inst., Zagreb AUTHOR|(CDS)2074402 #BEARD# Commissioning of the ALICE data acquisition system 2008 ALICE (A Large Ion Collider Experiment) is the heavy-ion detector designed to study the physics of strongly interacting matter and the quark-gluon plasma at the CERN Large Hadron Collider (LHC). A flexible, large bandwidth Data Acquisition System (DAQ) has been designed and deployed to collect sufficient statistics in the short running time foreseen per year for heavy ions and to accommodate very different requirements originated from the 18 sub-detectors. The Data Acquisition and Test Environment (DATE) is the software framework handling the data from the detector electronics up to the mass storage. This paper reviews the DAQ software and hardware architecture, including the latest features of the final design, such as the handling of the numerous calibration procedures in a common framework. We also discuss the large scale tests conducted on the real hardware to assess the standalone DAQ performances, its interfaces with the other online systems and the extensive commissioning performed in order to be ready for cosmics data taking scheduled to start in November 2007. The test protocols followed to integrate and validate each sub-detector with DAQ and Trigger hardware synchronized by the Experiment Control System are described. Finally, we give an overview of the experiment logbook, and some operational aspects of the deployment of our computing facilities. The implementation of a Transient Data Storage able to cope with the 1.25 GB/s recorded by the event-building machines and the data quality monitoring framework are covered in separate papers. CC-BY publication SzGeCERN Computing and Computers ARTICLE CERN CERN LHC ALICE Barroso, V CERN Carena, F CERN AUTHOR|(CDS)2071197 #BEARD# Carena, W CERN AUTHOR|(CDS)2108533 #BEARD# Chapeland, S CERN AUTHOR|(CDS)2069575 #BEARD# Cobanoglu, O INFN Turin Dénes, E Budapest, RMKI Divià, R CERN Fuchs, U CERN Kiss, T Budapest, RMKI AUTHOR|(CDS)2070423 #BEARD# Makhlyueva, I CERN Ozok, F Istanbul U. Roukoutakis, F CERN AUTHOR|(CDS)2051325 #BEARD# Schossmaier, K CERN Soós, C CERN Vyvre, P V CERN Vergara, S Puebla U. AUTHOR|(CDS)2089564 #BEARD# PH-EP 022006 J. Phys.: Conf. Ser. 119 2008 h 200920 a2008 13 20100901 1608 CER01 20090513 947732 022006 victoria20070902 PUBLIC 002820574CER ARTICLE ConferencePaper 1079672 20161219115454.0 oai:cds.cern.ch:1079672 cerncds:CERN eng Carena, F CERN AUTHOR|(CDS)2071197 #BEARD# Architecture and Implementation of the ALICE Data-Acquisition System 2006 SzGeCERN Detectors and Experimental Techniques SzGeCERN Computing and Computers ARTICLE CERN CERN LHC ALICE Carena, W CERN AUTHOR|(CDS)2108533 #BEARD# Chapeland, S CERN AUTHOR|(CDS)2069575 #BEARD# Divià, R CERN Fuchs, U CERN Makhlyueva, I CERN Marin, J C CERN Schossmaier, K CERN Soos, C CERN AUTHOR|(CDS)2068301 #BEARD# Van de Vyvre, P CERN Vascotto, A CERN Anticic, T AUTHOR|(CDS)2074402 #BEARD# Boskovic, Ruder Cobanoglu, O Dénes, E Ozok, F Vergara, S AUTHOR|(CDS)2089564 #BEARD# ALICE Collaboration PH h 200802 a2006 13 20081023 2023 CER01 20080108 824920 142-148 mumbai20060213 PUBLIC 002734712CER ARTICLE ConferencePaper 960457 SzGeCERN 20180416172510.0 oai:cds.cern.ch:960457 cerncds:FULLTEXT ALIALI 1064028 EDMS 616039 Inspire 928370 CERN LHC ALICE Van de Vyvre, P Carena, F AUTHOR|(CDS)2071197 #BEARD# Chapeland, S AUTHOR|(CDS)2069575 #BEARD# Chibante Barroso, V AUTHOR|(CDS)2067902 #BEARD# Costa, F Denes, E AUTHOR|(CDS)2070234 #BEARD# Divia, R AUTHOR|(CDS)2069499 #BEARD# Fuchs, U Simonetti, G Soos, C AUTHOR|(CDS)2068301 #BEARD# Telesca, A AUTHOR|(CDS)2068275 #BEARD# von Haller, B AUTHOR|(CDS)2069102 #BEARD# CERN INTNOTE PUBLALICE 002626742CER INTNOTEALICEPUBL NOTE Pierre.Vande.Vyvre@cern.ch ALICE-INT-2005-015 SzGeCERN Detectors and Experimental Techniques n 200623 CERN-ALICE-INT-2005-015 Carena, W AUTHOR|(CDS)2108533 #BEARD# 546 p CC-BY-4.0 Preprint EDMSINT200606 refALICE no affiliation PH-EP 8610242 http://cds.cern.ch/record/960457/files/ALICE-INT-2005-015v.2.2.pdf 2005 Geneva CERN 2005 eng ALICE DAQ and ECS User's Guide 49 20071026 1647 CER01 20060608 PUBLIC 1066453 SzGeCERN 20180607133417.0 oai:cds.cern.ch:1066453 cerncds:CERN eng Anticic, T CERN AUTHOR|(CDS)2074402 #BEARD# Specification and Simulation of the ALICE Trigger and DAQ System 2001 2007 4 p CC-BY-4.0 Preprint refALICE SzGeCERN Detectors and Experimental Techniques PREPRINT CERN CERN LHC ALICE Di Marzo Serugendo G CERN Vande Vyvre P CERN Villalobos Baillie O CERN Jovanovic P CERN ALICE Collaboration h 200744 11 20100319 1626 CER01 20071102 485003 beijing20010903 PUBLIC 002722544CER PREPRINT ConferencePaper 523295 SzGeCERN 20180416174505.0 oai:cds.cern.ch:523295 cerncds:FULLTEXT cerncds:CERN:FULLTEXT cerncds:CERN SPIRES 4754522 Inspire 564959 CERN-ALI-2001-047 eng CERN-ALICE-PUB-2001-47 Carena, W AUTHOR|(CDS)2108533 #BEARD# PCI Based Read-out Receiver Card in the ALICE DAQ System 2001 Geneva CERN 18 Oct 2001 9 p paper The Detector Data Link (DDL) is the high-speed optical link for the ALICE experiment. This link shall transfer the data coming from the detectors at 100 MB/s rate. The main components of the link have been developed: the destination Interface Unit (DIU), the Source Interface Unit (SIU) and the Read-out Receiver Card (RORC). The first RORC version is based on the VME bus. The performance tests show that the maximum VME bandwidth could be reached. Meanwhile the PCI bus became very popular and is used in many platforms. The development of a PCI-based version has been started. The document describes the prototype version in three sections. An overview explains the main purpose of the card: to provide an interface between the DDL and the PCI bus. Acting as a 32bit/33MHz PCI master the card is able to write or read directly to or from the system memory from or to the DDL, respectively. Beside these functions the card can also be used as an autonomous data generator. The card has been designed to be well adapted to applications, which require small software overhead such the high-speed data acquisition systems. The implementation of the firmware will be presented. For the logic design we are using VHDL and schematic draw. Software library routines were written in C and are available on Linux OS. The results of performance measurements will be available to allow the comparison between the VME-RORC and PCI-RORC. In the conclusion the future plans and the idea of the improved (64bit/66MHz) PCI-RORC will be shown. CC-BY-4.0 Preprint CERN EDS 20011026SLAC refALICE SzGeCERN Detectors and Experimental Techniques CERN PREPRINT CERN LHC ALICE Csató, P Dénes, E Divià, R Schossmaier, K Soós, C Sulyán, J Vascotto, Alessandro Van de Vyvre, P ALICE Collaboration EP CERN Depot 4, bldg. 500-S-023 (DE4) CERN-ALI-2001-047 http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=cern&id=ali-2001-047 Access to fulltext document http://cds.cern.ch/record/523295/files/ali-2001-047.pdf Access to fulltext document http://cds.cern.ch/record/523295/files/ali-2001-047.ps.gz Access to fulltext document Joanna.Stewart@cern.ch CERN KFKI-RMKI, Budapest n 200143 11 20100723 1345 CER01 20011018 524296 varna20010912 PUBLIC 002280040CER PREPRINT ConferencePaper 0001 689321 SzGeCERN 20180416172501.0 oai:cds.cern.ch:689321 cerncds:FULLTEXT SIS EDMSINT2001 refALICE SIS ALICE2003 Vande Vyvre, P CERN ALIALI 0000542 EDMS 250015 WAI01 000001122 Inspire 928473 CERN LHC ALICE CERN Internal Note INTNOTEALICEPUBL CERN INTNOTE PUBLALICE 002415557CER INTNOTEALICEPUBL NOTE Pierre.Vande.Vyvre@cern.ch ALICE-INT-2000-30 <HTML> <HEAD> <META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=windows-1252"> <META NAME="Generator" CONTENT="Microsoft Word 97"> <TITLE>Abstract</TITLE> </HEAD> <BODY> <B><FONT SIZE=4><P>Abstract</P> </B></FONT> <P>The goal of this note is to review the requirements for the DAQ system originated from the various physics topics that will be studied by the ALICE experiment. It summarises all the current requirements both for Pb-Pb and p-p interactions. The consequences in terms of throughput at different stages of the DAQ system are presented for different running scenarios.</P></BODY> </HTML> CC-BY-4.0 Preprint SzGeCERN Detectors and Experimental Techniques n 200349 CERN-ALICE-INT-2000-30 17 p EP ALICE Collaboration http://cds.cern.ch/record/689321/files/INT-2000-30.pdf Fulltext http://cds.cern.ch/record/689321/files/INT-2000-30.ps Fulltext http://cds.cern.ch/record/689321/files/INT-2000-30.ps.gz Fulltext Physics Requirements for the ALICE DAQ system 2000 Geneva CERN 2000 eng 49 20071026 1624 CER01 20031205 PUBLIC 689204 SzGeCERN 20180416172454.0 oai:cds.cern.ch:689204 cerncds:FULLTEXT SIS EDMSINT2001 SIS ALICE2003 CERN. Geneva Macowicz, M CERN ALIALI 0000412 EDMS 106739 WAI01 000000992 Inspire 928584 CERN LHC ALICE CERN Internal Note INTNOTEALICEPUBL CERN INTNOTE PUBLALICE 002415440CER INTNOTEALICEPUBL NOTE Maciej.Macowicz@cern.ch ALICE-INT-1998-02 The purpose of the note is to assess the methods and tools to be used in the development of the ALICE DAQ System Control (ALICE-DSC) and to present the current status of the ALICE-DSC prototype. We first introduce the ALICE-DSC, then we define the criteria for assessing methods and tools to use during the ALICE-DSC development. In the following part of the note we overview reactive programming languages and CASE tools with respect to these criteria, then we present the design of the ALICE-DSC using ObjecTime: the CASE tool we have chosen. In conclusion, we outline the strengths and weaknesses of ObjecTime and we present the future workplan. CC-BY-4.0 Preprint CERN CASE CERN Control CERN DSC CERN ObjecTime CERN ROOM CERN Reactive CERN Run-Control SzGeCERN Detectors and Experimental Techniques n 200349 CERN-ALICE-INT-1998-02 14 p EP ALICE Collaboration http://cds.cern.ch/record/689204/files/INT-1998-02.html Fulltext http://cds.cern.ch/record/689204/files/INT-1998-02.pdf Fulltext http://cds.cern.ch/record/689204/files/INT-1998-02.ps.gz Fulltext ALICE Data Acquisition System Control: Assessment of methods and tools for the development 1998 Geneva CERN 1998 eng 49 20060722 0003 CER01 20031205 PUBLIC 426301 SzGeCERN 20180416174506.0 oai:cds.cern.ch:426301 cerncds:FULLTEXT cerncds:CERN:FULLTEXT cerncds:CERN SPIRES 4328876 Inspire 433752 CERN-ALI-96-01 eng CERN-ALICE-PUB-96-01 Beker, H Architectural impact of customised compression methods on the switch based ALICE DAQ system 1996 Geneva CERN 5 Nov 1996 7 p CC-BY-4.0 Preprint SIS ALICE2000 20000217SLAC SzGeCERN Detectors and Experimental Techniques CERN COMPRESSION CERN DAQ CERN PREPRINT CERN LHC ALICE Carena, W AUTHOR|(CDS)2108533 #BEARD# Divià, R Van de Vyvre, P Vascotto, Alessandro Schindler, M Fuchs, M EP http://consult.cern.ch/alice/Publications/1996/01/PUB-96-01.html http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=cern&id=ali-96-01 Fulltext http://cds.cern.ch/record/426301/files/ali-96-001.pdf Fulltext http://cds.cern.ch/record/426301/files/ali-96-001.ps.gz Fulltext CERN Tech. Univ. Vienna Univ. Frankfurt n 200007 11 20100729 1035 CER01 20000211 PUBLIC 002175449CER PREPRINT 320785 SzGeCERN 20190226123833.0 oai:cds.cern.ch:320785 cerncds:FULLTEXT cerncds:CERN:FULLTEXT cerncds:CERN CERN annual report 96-0937 CERN-ALI-96-03 eng CERN-ALICE-PUB-96-03 Harangozo, G Simulation and evaluation of event building methods proposed for the CERN ALICE data acquisition system 1996 Geneva CERN 1996 CC-BY-4.0 Preprint SIS ALICE2000 SzGeCERN Detectors and Experimental Techniques CERN ALSIM CERN DAQ CERN Event-Building CERN LEB CERN Simulation ARTICLE CERN CERN LHC ALICE Rubin, G PPE http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=cern&id=ali-96-03 Fulltext http://cds.cern.ch/record/320785/files/ali-96-003.pdf Fulltext http://cds.cern.ch/record/320785/files/ali-96-003.ps.gz Fulltext CERN n 199700 a1996 13 20100226 2003 CER01 19970220 315849 175-179 balatonfured960923 PUBLIC 000243935CER ARTICLE ConferencePaper 406472 SzGeCERN 20180924173142.0 oai:cds.cern.ch:406472 cerncds:CERN 10.1109/23.486015 DOI CERN annual report 1999-3.0831 SLAC 4023919 SPIRES 4023919 Inspire 432893 eng Wu, B Modeling of the ALICE data acquisition system 1996 SzGeCERN Detectors and Experimental Techniques ARTICLE CERN CERN LHC ALICE Skaali, B AUTHOR|(CDS)2067891 #BEARD# Van de Vyvre, P EP Oslo Univ. CERN h 199952 a1999 13 20100803 1410 CER01 19991104 283870 118-122 eastlansing950523 PUBLIC 000333265CER ARTICLE ConferencePaper 319387 SzGeCERN 20161219122030.0 oai:cds.cern.ch:319387 cerncds:CERN CERN annual report 96-1401 0242402CERCER eng Skaali, B AUTHOR|(CDS)2067891 #BEARD# The ALICE data acquisition system 1996 SzGeCERN Detectors and Experimental Techniques ARTICLE CERN CERN LHC ALICE PPE n 199700 a1996 13 20070607 2047 CER01 19970131 316845 223-247 dubna950719.3 PUBLIC 000242402CER ARTICLE ConferencePaper 689337 SzGeCERN 20180416172502.0 oai:cds.cern.ch:689337 cerncds:FULLTEXT SIS EDMSINT2001 SIS ALICE2003 CERN. Geneva ALICE-INT-1995-31 ALIALI 0000226 EDMS 106735 WAI01 000000890 Inspire 928458 CERN LHC ALICE Skaali, B Oslo U. AUTHOR|(CDS)2067891 #BEARD# Harangozo, G CERN Van de Vyvre, P CERN Wu, B Oslo U. CERN Internal Note INTNOTEALICEPUBL CERN INTNOTE PUBLALICE 002415573CER INTNOTEALICEPUBL NOTE Bin.Wu@cern.ch This manual describes the details of a simulation environment ALSIM for the ALICE DAQ system. It could be served as the reference manual as well as the user's manual. CC-BY-4.0 Preprint CERN ALSIM CERN DAQ CERN Simulation SzGeCERN Detectors and Experimental Techniques n 200349 CERN-ALICE-INT-1995-31 Geneva CERN 1996 67 p PPE ALICE Collaboration http://cds.cern.ch/record/689337/files/INT-1995-31.pdf Fulltext http://cds.cern.ch/record/689337/files/INT-1995-31.ps.gz Fulltext 1996 Kvamme, Bjarne Oslo U. eng Reference Manual and User's Manual for ALICE DAQ Modelling and Simulation 49 20060722 0003 CER01 20031205 PUBLIC 689423 SzGeCERN 20180416172504.0 oai:cds.cern.ch:689423 cerncds:FULLTEXT CERN. Geneva ALICE-INT-1995-42 ALIALI 0000237 EDMS 112154 WAI01 000000901 Inspire 928419 CERN LHC ALICE CERN Internal Note INTNOTEALICEPUBL CERN INTNOTE PUBLALICE 002415659CER INTNOTEALICEPUBL NOTE Harry.Beker@cern.ch I present a few ideas on how to handle the different modes of running of ALICE and how to accommodate different physics requirements in the trigger system and in the DAQ. CC-BY-4.0 Preprint SIS EDMSINT2001 SIS ALICE2003 no affiliation CERN DAQ CERN TRIGGER SzGeCERN Detectors and Experimental Techniques n 200349 CERN-ALICE-INT-1995-42 17 p PPE ALICE Collaboration http://cds.cern.ch/record/689423/files/INT-1995-42.pdf Fulltext http://cds.cern.ch/record/689423/files/INT-1995-42.ps Fulltext http://cds.cern.ch/record/689423/files/INT-1995-42.ps.gz Fulltext The DAQ Trigger Interface for ALICE Standard and High Rate Running. 1995 Geneva CERN 1995 eng 49 20060722 0003 CER01 20031205 PUBLIC 689430 SzGeCERN 20180416172505.0 ALIALI 0000222 EDMS 106921 WAI01 000000886 Inspire 928415 ALICE-INT-1995-27 eng CERN-ALICE-INT-1995-27 CERN. Geneva Configuration Generator for the ALICE DAQ simulation program (ALSIM). 1995 Geneva CERN 1995 mult. p This document gives a description of the work I have done as a summer student in CERN. <BR> It describes a configuration generator for the ASIM simulator. CC-BY-4.0 Preprint SIS EDMSINT2001 SIS ALICE2003 SzGeCERN Detectors and Experimental Techniques CERN SIMULATION CERN Internal Note INTNOTEALICEPUBL CERN INTNOTE PUBLALICE CERN LHC ALICE PPE ALICE Collaboration Bjarne.Kvamme@cern.ch n 200349 49 20070830 1521 CER01 20031205 PUBLIC 002415666CER INTNOTEALICEPUBL NOTE 689121 SzGeCERN 20180416172448.0 oai:cds.cern.ch:689121 cerncds:FULLTEXT SIS EDMSINT2001 SIS ALICE2003 Rubin, G Budapest, RMKI Bin Wu Oslo U. Kvamme, Bjarne Oslo U. Harangozo, G CERN CERN. Geneva Van de Vyvre, Pierre CERN ALICE-INT-1995-55 ALIALI 0000248 EDMS 112153 WAI01 000000912 Inspire 928665 CERN LHC ALICE CERN Internal Note INTNOTEALICEPUBL CERN INTNOTE PUBLALICE 002415357CER INTNOTEALICEPUBL NOTE Gabor.Harangozo@cern.ch <P> The Heavy Ion Experiment ALICE is one of the three future experiments in the LHC at CERN. At the ALICE experiment, the detectors will produce two different kinds of data flow simultaneously: very large events (up to 39 Mbyte) at a low rate (40 Hz) and small events (up to 0.25 MByte) at a high rate (up to 1000 Hz). There will be two types of the large events (Central events and Minimum Bias events), whose combined data traffic corresponds to events of up to 40 MByte at 50 Hz event rate, and referred to as central events. The small events are called dimuon events [1]. <P> Previously we have carried out simulations to see how the system performances will vary if one of the basic input parameters is changed, provided that only central events are generated [2]. In this paper we present simulation results when both kinds of events are generated at the same time. The simulation results will show the limits of the data acquisition system, i.e. the input parameter values at which the system is still in equilibrium and the global input data rate just does not exceed the global output data rate. The graphs presented in this paper will probably help to find an optimal parameter set for the DAQ system. <P> We used a simplified version of the simulator program ALSIM [3] which is written in MODSIM II language [4]. <P> In the subsequent chapters, first we describe the simulation setup with the default values of the input parameters, then we present the simulation results, and finally we give a brief summary of the results. CC-BY-4.0 Preprint CERN DAQ CERN Simulation SzGeCERN Detectors and Experimental Techniques n 200349 CERN-ALICE-INT-1995-55 8 p PPE ALICE Collaboration http://cds.cern.ch/record/689121/files/INT-1995-55.pdf Fulltext http://cds.cern.ch/record/689121/files/INT-1995-55.ps Fulltext http://cds.cern.ch/record/689121/files/INT-1995-55.ps.gz Fulltext 1995 Geneva CERN 1995 eng Simulation of Central and Dimuon Events in the ALICE DAQ System. 49 20070119 1212 CER01 20031205 PUBLIC 689120 SzGeCERN 20180416172448.0 oai:cds.cern.ch:689120 cerncds:FULLTEXT SIS EDMSINT2001 SIS ALICE2003 Van der Bij, Erik CERN Rubin, G Budapest, RMKI Bin Wu Oslo U. Kvamme, Bjarne Oslo U. Harangozo, G CERN CERN. Geneva ALICE-INT-1995-33 ALIALI 0000228 EDMS 106736 WAI01 000000892 Inspire 928666 CERN LHC ALICE CERN Internal Note INTNOTEALICEPUBL CERN INTNOTE PUBLALICE 002415356CER INTNOTEALICEPUBL NOTE Gabor.Harangozo@cern.ch performance simulations. CC-BY-4.0 Preprint CERN Event-Building CERN Simulation SzGeCERN Detectors and Experimental Techniques n 200349 CERN-ALICE-INT-1995-33 Geneva CERN 1995 10 p PPE ALICE Collaboration http://cds.cern.ch/record/689120/files/INT-1995-33.pdf Fulltext http://cds.cern.ch/record/689120/files/INT-1995-33.ps.gz Fulltext 1995 Van de Vyvre, Pierre CERN eng Simulation of the ALICE DAQ System 49 20070119 1213 CER01 20031205 PUBLIC 338431 SzGeCERN 20210811015913.0 oai:cds.cern.ch:338431 cerncds:FULLTEXT cerncds:CERN:FULLTEXT cerncds:CERN DOI 10.1142/9789814447188_0072 CERN annual report 97-2222 INSPIRE 411715 Inspire 411715 CERN-ALI-95-01 eng CERN-ALICE-PUB-95-01 Nelson, J The ALICE data-acquisition system 1996 Geneva CERN 1996 ALICE (A Large Ion Collider Experiment) is the future LHC experiment dedicated to study the physics of strongly interacting matters. The trigger and data-acquisition system of ALICE will have to process different kinds of events: short runs of heavy-ions events resulting in huge volume of data and long runs with pp events generating less data. These two types of run result in different, and sometimes conflicting requirements and require that the computing system is flexible enough to run in different modes of operation and to switch easily from one mode to another. This paper presents the initial system design, the results of the simulation work, the prototyping which will be started. The current situation of the permanent storage industry is also mentioned due to the particular importance of this technology for the ALICE data acquisition system Preprint CC-BY-4.0 Publication World Scientific Publishing 1996 SIS ALICE2000 SzGeCERN Detectors and Experimental Techniques CERN CHEP CERN DAQ ARTICLE CERN CERN LHC ALICE Villalobos Baillie, O Dénes, E Holba, A Rubin, G Szendrei, L AUTHOR|(CDS)2070423 #BEARD# Kiss, T Meggyesi, Z Bozzoli, W Divià, R Harangozo, G McLaren, R A Ritter, H G Van der Bij, Erik Van de Vyvre, P Vascotto, Alessandro Brockmann, R Kolb, B W Purschke, M L Beldishevski, M Bellato, M A Maron, G Kvamme, Bjarne AUTHOR|(CDS)2067891 #BEARD# Skaali, B Wu, B Beker, H ALICE Collaboration ECP http://consult.cern.ch/alice/Publications/1995/01/PUB-95-01.html http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=cern&id=ali-95-01 Fulltext http://cds.cern.ch/record/338431/files/ali-95-001.pdf Fulltext http://cds.cern.ch/record/338431/files/ali-95-001.ps.gz Fulltext CERN h 199700 a1997 13 20100226 2003 CER01 19971114 289231 383-387 riodejaneiro950918 PUBLIC 000262144CER ARTICLE ConferencePaper 302466 SzGeCERN 20161219132245.0 oai:cds.cern.ch:302466 cerncds:CERN CERN annual report 95-1358 0224317CERCER eng Wu, B Modelling of the ALICE data acquisition system 1995 SzGeCERN Detectors and Experimental Techniques ARTICLE CERN CERN LHC ALICE Skaali, B AUTHOR|(CDS)2067891 #BEARD# Van de Vyvre, P ECP n 199500 a1995 13 20070310 0011 CER01 19960506 283870 118-122 eastlansing950523 PUBLIC 000224317CER ARTICLE ConferencePaper