1. Grid and Cloud Computing Pegasus Dr. Guy Tel-Zur

2. Pegasus http://pegasus.isi.edu/

3. Pegasus course material We will use the newest version 4 Introduction: http://pegasus.isi.edu/tutorial/condor08/CONDO R08-PegasusWMSTutorial-final.pdf http://pegasus.isi.edu/tutorial/condor08/CONDO R08-PegasusWMSTutorial-final.pdf Tutorial: http://pegasus.isi.edu/wms/docs/4.0/tutorial_v m.php http://pegasus.isi.edu/wms/docs/4.0/tutorial_v m.php Virtual box image: wget http://pegasus.isi.edu/wms/download/4.0/Pegasus- 4.0.0-Debian-6-x86.vbox.zip

4. Pegasus is composed of three components: Mapper (Pegasus Mapper): Generates an executable workflow based on an abstract workflow provided by the user or workflow composition system. It finds the appropriate software, data, and computational resources required for workflow execution. The Mapper can also restructure the workflow to optimize performance and adds transformations for data management and provenance information generation. Execution Engine (DAGMan): Executes the tasks defined by the workflow in order of their dependencies. DAGMan relies on the resources (compute, storage and network) defined in the executable workflow to perform the necessary actions. Task manager (Condor Schedd): manages individual workflow tasks: supervises their execution on local and remote resources.

5. Pegasus demos on my laptop 1. Pegasus GUI (Windows) 2. Virtual Box VM image Folder: C:\Users\telzur\Documents\MTA\CloudComputing2012B\Software\Pegasus

7. Other options Vbox account: user: tutorial pw: pegasus AWS/EC2 AMI ami-858741ec 405596411149/centos-5.6-x86_64-pegasus-cloud-tutorial-2 Login as root Vbox account: user: tutorial pw: pegasus AWS/EC2 AMI ami-858741ec 405596411149/centos-5.6-x86_64-pegasus-cloud-tutorial-2 Login as root

20. ## What machine is your central manager? CONDOR_HOST = central-manager- hostname.your.domain CONDOR_HOST = my local host…. ## What machine is your central manager? CONDOR_HOST = central-manager- hostname.your.domain CONDOR_HOST = my local host…. As user root : vi /etc/condor/condor_config See instructions online: https://confluence.pegasus.isi.edu/pages/viewpage.action? pageId=13140456

22. User: tutorial Password: pegasus tutorial@pegasus-vm:~$ grid-proxy-init Your identity: /O=edu/OU=ISI/OU=isi.edu/CN=Tutorial User Creating proxy.......................................... Done Your proxy is valid until: Thu May 10 01:03:07 2012 tutorial@pegasus-vm:~$ grid-proxy-info subject : /O=edu/OU=ISI/OU=isi.edu/CN=Tutorial User/CN=645592969 issuer : /O=edu/OU=ISI/OU=isi.edu/CN=Tutorial User identity : /O=edu/OU=ISI/OU=isi.edu/CN=Tutorial User type : RFC 3820 compliant impersonation proxy strength : 512 bits path : /tmp/x509up_u1000 timeleft : 11:59:03 tutorial@pegasus-vm:~$ tutorial@pegasus-vm:~$ grid-proxy-init Your identity: /O=edu/OU=ISI/OU=isi.edu/CN=Tutorial User Creating proxy.......................................... Done Your proxy is valid until: Thu May 10 01:03:07 2012 tutorial@pegasus-vm:~$ grid-proxy-info subject : /O=edu/OU=ISI/OU=isi.edu/CN=Tutorial User/CN=645592969 issuer : /O=edu/OU=ISI/OU=isi.edu/CN=Tutorial User identity : /O=edu/OU=ISI/OU=isi.edu/CN=Tutorial User type : RFC 3820 compliant impersonation proxy strength : 512 bits path : /tmp/x509up_u1000 timeleft : 11:59:03 tutorial@pegasus-vm:~$

23. Follow the URL: http://pegasus.isi.edu/wms/docs/4.0/tutorial_vm.php