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Software Implementation
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  1. Software Implementation Junwei Cao (曹军威) and Junwei Li (李俊伟) Tsinghua University Gravitational Wave Summer School Kunming, China, July 2009

  2. Computing Challenges • Large amount of data • Parallel and distributed processing • Clusters and grids • Clusters: collection of workstations • Grids: collection of clusters/supercomputers • Software becomes the key • LIGO data analysis software working group (DASWG) • Future computing infrastructures

  3. Birmingham• • Cardiff AEI/Golm The LSC Data Grid (LDG)

  4. The LDG Software Stack LDAS DMT LALApps Matlab End users & applications Application enabling LDM LDGreport Glue Onasys LSC Job management LSC Data management LDR LSCdataFind LSCsegFind The LSC Data Grid Client/Server Environment Version 4.0 (based on VDT 1.3.9) LSCcertUtils LSC CA LSC Security management Applications Infrastructures Condor-G Worklfow management / Condor DAGman VDS VOMS Catalog service / Globus Resource location service / Globus Metadata service Resource management / Globus GRAM Data transfer / GridFTP Job scheduling / Condor Grid security / Globus GSI Middleware / Services Operating Systems and … FC4 GCC Python Autotools MySQL

  5. The LDG 4.0 Client/Server …… platformGE( 'Linux' ); package( 'Client-Environment' ); cd( 'vdt' ); package( 'VDT_CACHE:Globus-Client' ); package( 'VDT_CACHE:CA-Certificates' ); package( 'VDT_CACHE:Condor' ); package( 'VDT_CACHE:Fault-Tolerant-Shell' ); package( 'VDT_CACHE:GSIOpenSSH' ); package( 'VDT_CACHE:KX509' ); package( 'VDT_CACHE:MyProxy' ); package( 'VDT_CACHE:PyGlobus' ); package( 'VDT_CACHE:PyGlobusURLCopy' ); package( 'VDT_CACHE:UberFTP' ); package( 'VDT_CACHE:EDG-Make-Gridmap' ); package( 'VDT_CACHE:Globus-RLS-Client' ); package( 'VDT_CACHE:VDS' ); package( 'VDT_CACHE:VOMS-Client' ); cd(); package( 'Client-FixSSH' ); package( 'Client-RLS-Python-Client' ); package( 'Client-Cert-Util' ); package( 'Client-LSC-CA' ); …… OR platformGE( 'Sun' ); package( 'SolarisPro' ); OR platformGE( 'MacOS' ); package( 'Mac' ); • Written in Pacman 3 • Based on VDT 1.3.9 • Support LDG:Client and LDG:ClientPro • Support multiple platforms: FC4, Solaris and Darwin at client and only FC4 at server • Support both 32bit and 64bit machines • Server includes client • Online documentation for step-by-step installation

  6. Data Discovery (LSCdataFind) Metadata observatory = L dataType = RDS_R_L3 startGPS = 751658016 endGPS = 751658095 Metadata Service LFNs L-RDS_R_L3-751658016-16.gwf L-RDS_R_L3-751658032-16.gwf L-RDS_R_L3-751658048-16.gwf L-RDS_R_L3-751658064-16.gwf L-RDS_R_L3-751658080-16.gwf Resource Location Service @ldas.mit.edu PFNs (for both local and remote) file://localhost/data/node10/frame/S3/L3/LLO/L-RDS_R_L3-751658016-16.gwf gsiftp://ldas.mit.edu/data/node10/frame/S3/L3/LLO/L-RDS_R_L3-751658016-16.gwf file://localhost/data/node11/frame/S3/L3/LLO/L-RDS_R_L3-751658032-16.gwf gsiftp://ldas.mit.edu/data/node11/frame/S3/L3/LLO/L-RDS_R_L3-751658032-16.gwf file://localhost/data/node12/frame/S3/L3/LLO/L-RDS_R_L3-751658048-16.gwf gsiftp://ldas.mit.edu/data/node12/frame/S3/L3/LLO/L-RDS_R_L3-751658048-16.gwf file://localhost/data/node13/frame/S3/L3/LLO/L-RDS_R_L3-751658064-16.gwf gsiftp://ldas.mit.edu/data/node13/frame/S3/L3/LLO/L-RDS_R_L3-751658064-16.gwf file://localhost/data/node14/frame/S3/L3/LLO/L-RDS_R_L3-751658080-16.gwf gsiftp://ldas.mit.edu/data/node14/frame/S3/L3/LLO/L-RDS_R_L3-751658080-16.gwf

  7. MIT (Tier 2) Caltech (Tier 1) LDRMaster LDRMaster mysql mysql 1. update metadata lfn LDRMetadataService LDRMetadataService 2. get lfn pfn@caltech(remote) RLS RLS LDRSchedule LDRSchedule 5. rlsadd lfn pfn@mit LDRTransfer (gridftp) LDRTransfer (gridftp) 3. generate lfn pfn@mit 4. gridftp pfn@caltech(remote) pfn@mit(local) Local Storage Module Local Storage Module Data Replication (LDR) 24/7 Operation LHO (Tier 0) LLO (Tier 0)

  8. Name Server Single data stream SMP DMT Online Use Scenario – control-room type DMT Monitors DMT Offline Use Scenario – standalone or grid enabled Multiple data streams Stdout Trigger files Alarm files Trend files …… Data Monitoring Toolkit (DMT) client gui Server lsmp lmsg MonServer base container xml /data/node10/frame/S3/L3/LHO/H-RDS_R_L3-751658016-16.gwf /data/node11/frame/S3/L3/LHO/H-RDS_R_L3-751658032-16.gwf /data/node12/frame/S3/L3/LHO/H-RDS_R_L3-751658048-16.gwf /data/node13/frame/S3/L3/LHO/H-RDS_R_L3-751658064-16.gwf /data/node14/frame/S3/L3/LHO/H-RDS_R_L3-751658080-16.gwf /data/node15/frame/S3/L3/LHO/H-RDS_R_L3-751658096-16.gwf /data/node16/frame/S3/L3/LHO/H-RDS_R_L3-751658112-16.gwf sigp html ezcalib xsil /data/node10/frame/S3/L3/LLO/L-RDS_R_L3-751658016-16.gwf /data/node11/frame/S3/L3/LLO/L-RDS_R_L3-751658032-16.gwf /data/node12/frame/S3/L3/LLO/L-RDS_R_L3-751658048-16.gwf /data/node13/frame/S3/L3/LLO/L-RDS_R_L3-751658064-16.gwf /data/node14/frame/S3/L3/LLO/L-RDS_R_L3-751658080-16.gwf /data/node15/frame/S3/L3/LLO/L-RDS_R_L3-751658096-16.gwf /data/node16/frame/S3/L3/LLO/L-RDS_R_L3-751658112-16.gwf dmtenv event …… trig …… frameio DMT Libraries

  9. An Example DMT Monitor filelist1.txt multilist.txt /data/node10/frame/S3/L3/LLO/L-RDS_R_L3-751658016-16.gwf /data/node11/frame/S3/L3/LLO/L-RDS_R_L3-751658032-16.gwf /data/node12/frame/S3/L3/LLO/L-RDS_R_L3-751658048-16.gwf /data/node13/frame/S3/L3/LLO/L-RDS_R_L3-751658064-16.gwf /data/node14/frame/S3/L3/LLO/L-RDS_R_L3-751658080-16.gwf /data/node15/frame/S3/L3/LLO/L-RDS_R_L3-751658096-16.gwf /data/node16/frame/S3/L3/LLO/L-RDS_R_L3-751658112-16.gwf filelist1.txt filelist2.txt filelist2.txt rmon /data/node10/frame/S3/L3/LHO/H-RDS_R_L3-751658016-16.gwf /data/node11/frame/S3/L3/LHO/H-RDS_R_L3-751658032-16.gwf /data/node12/frame/S3/L3/LHO/H-RDS_R_L3-751658048-16.gwf /data/node13/frame/S3/L3/LHO/H-RDS_R_L3-751658064-16.gwf /data/node14/frame/S3/L3/LHO/H-RDS_R_L3-751658080-16.gwf /data/node15/frame/S3/L3/LHO/H-RDS_R_L3-751658096-16.gwf /data/node16/frame/S3/L3/LHO/H-RDS_R_L3-751658112-16.gwf standalone run of rmon DMT offline monitor [jcao@ldaspc1 rmon]$ export LD_LIBRARY_PATH=/opt/lscsoft/dol/lib [jcao@ldaspc1 rmon]$ ./rmon -opt opt -inlists multilist.txt Processing multi list file: multilist.txt Number of lists added: 2 Total data streams: 2 Processing frame list file: /home/jcao/rmon/filelist1.txt Number of files added: 1188 Total frame files: 1188 Processing frame list file: /home/jcao/rmon/filelist2.txt Number of files added: 1188 Total frame files: 1188 channel[1]=H1:LSC-AS_Q channel[2]=L1:LSC-AS_Q startgps=751658000 stride=16 r-statistic=-0.00251782 startgps=751658016 stride=16 r-statistic=-0.0122699 startgps=751658032 stride=16 r-statistic=0.0168868 …… opt stride 16.0 channel_1 H1:LSC-AS_Q channel_2 L1:LSC-AS_Q

  10. client LDM server Other tools The LDM Modules and Flowchart QUEUED REJECTED SCHEDULED LSCdataFind Server ldm_submit ldm_locate_script LSCdataFind LOCATING ldm_agent RELEASED condor_master LOCATED Globus Job Manager ldm_q ldm_exec_script condor_submit RUNNING ldm_rm FINISHED LDM_SITES ldm_agent [MIT] lscdatafindserver = ldas-gridmon.mit.edu globusscheduler = ldas-grid.mit.edu/jobmanager-condor environment = LD_LIBRARY_PATH=/dso-test/home/jcao/dol/lib [CIT] lscdatafindserver = ldas-gridmon.ligo.caltech.edu globusscheduler = ldas-grid.ligo.caltech.edu/jobmanager-condor environment = LD_LIBRARY_PATH=/dso-test/jcao/dol/lib [LHO] lscdatafindserver = ldas-gridmon.ligo-wa.caltech.edu globusscheduler = ldas-grid.ligo-wa.caltech.edu/jobmanager-condor environment = LD_LIBRARY_PATH=/dso-test/jcao/dol/lib [LLO] lscdatafindserver = ldas-gridmon.ligo-la.caltech.edu globusscheduler = ldas-grid.ligo-la.caltech.edu/jobmanager-condor environment = LD_LIBRARY_PATH=/data2/jcao/dol/lib LDM_CONFIG Condor [AGENT] RESOURCES = @MIT@CIT@LHO@LLO SITES = /home/jcao/ldm/etc/LDM_SITES EXEC = /home/jcao/ldm/bin/ldm_exec_script LOCATE = /home/jcao/ldm/bin/ldm_locate_script PID = /home/jcao/ldm/var/ldm.pid LOG = /home/jcao/ldm/var/ldm.log LDG = /home/jcao/ldg-3.0/ Modules developed or deployed Modules designed and underdeveloped

  11. Data Monitoring Environment (LDM) grid-enabled run of rmon DMT offline monitor using LDM ldm.sub [job] id = test monitor = rmon args = -opt opt input = opt [data] observatory = @H@L type = @RDS_R_L3@RDS_R_L3 start = 751658000 end = 751676993 [jcao@ldaspc1 ~]$ cd ldm [jcao@ldaspc1 ldm]$ source setup.sh [jcao@ldaspc1 ldm]$ cd ../rmon [jcao@ldaspc1 rmon]$ ldm_agent [jcao@ldaspc1 rmon]$ ldm_submit ldm.sub Job test has been submitted. [jcao@ldaspc1 rmon]$ more ldm_test_condor.out Processing multi list file: ldm_test_CIT_multilist.txt Number of lists added: 2 Total data streams: 2 …… startgps=751658000 stride=16 r-statistic=-0.00251782 …… automatically generated Condor-G submission file Users are interfaced with a LIGO friendly language. universe = globus globusscheduler = ldas-grid.ligo.caltech.edu/jobmanager-condor log = ldm_test_condor.log output = ldm_test_condor.out error = ldm_test_condor.err should_transfer_files = YES when_to_transfer_output = ON_EXIT transfer_input_files = ldm_test_CIT_multilist.txt, ldm_test_CIT_filelist1.txt, ldm_test_CIT_filelist2.txt, /home/jcao/rmon/opt arguments = -inlists ldm_test_CIT_multilist.txt -opt opt environment = LD_LIBRARY_PATH=/dso-test/jcao/dol/lib executable = /home/jcao/rmon/rmon Queue Users do not bother with technical details of LSC data grid services. Data are located and file lists are generated automatically

  12. Open Science Grid (OSG) • High energy physics • Bioinformatics • Nanotechnology • …… • Grid of Grids • 20 thousand CPUs • Petabytes of data storage

  13. Thank You ! Junwei Cao jcao@tsinghua.edu.cn http://ligo.org.cn