Moiss Hernndez Duarte

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GENIUS Grid portalHands on

• Moisés Hernández Duarte
• UNAM FES Cuautitlán
• Tutorial on grid, visualization and high
  performance calculation
• Mexico City, October 23 26, 2007
• Based on Luciano Díaz presentation, ICN-UNAM

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Outline

• Useful information
• Exercises
• GENIUS logging in and base settings
• Launch a job described by a JDL which already
  exists in the UI
• Prepare a job described by a JDL and store it on
  the UI
• Submit the job described by the JDL created in
  the previous exercise
• Preparing a job described by the JDL with a file
  to ship in the input sandbox
• Submitting the job prepared in the previous
  exercise

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Useful information

• GENIUS Tutorial website
• https//glite-tutor2.ct.infn.it
• Tutorial accounts on glite-tutor
• Username mexicocityXX where XX goes from 01 to
  40
• Password GridMEXxx where xx goes from 01 to 40
• When issuing the myproxy-init command
• Myproxy password MEXICOCITY for all the accounts

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Introduction the two-layers Authentication

• 1. Authentication with the User Interface
• 2. Authentication to the Grid.

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Exercise 1
GENIUS logging in and base settings
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Outline of the exercise 1/2

• Login at your UI account (passwd GridMEXxx)
• Store a proxy on a remote Myproxy Server machine
  with the command (using the passphrase
  MEXICOCITY)
• gtmyproxy-init --voms gilda
• Retrieve a local proxy from MyProxy server
• gt myproxy-get-delegation (must use your new
  MyProxy passphrase)

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Outline of the exercise 2/2

• Verify your new local proxy
• gtvoms-proxy-info --all
• Destroy your local proxy with the command and
  then inspect it
• gtvoms-proxy-destroy
• Go on the https//glite-tutor2.ct.infn.it with
  your browser, put your Myproxy passphrase.
• Come back on the terminal and execute
• gtvoms-proxy-info --all

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gtmyproxy-init --voms gilda
mexicocity20_at_eela-132 mexicocity20
myproxy-init --voms gilda Cannot find file or
dir /home/mexicocity20/.glite/vomses Your
identity /CIT/OGILDA/OUPersonal
Certificate/LMEXICOCITY/CNMEXICOCITY20/Emailrob
erto.barbera_at_ct.infn.it Enter GRID pass
phrase verify OK Creating temporary proxy
..................................................
. Done Contacting voms.ct.infn.it15001
/CIT/OGILDA/OUHost/LINFN Catania/CNvoms.ct.i
nfn.it/Emailemidio.giorgio_at_ct.infn.it "gilda"
Done Creating proxy ..............................
.......... Done Your proxy is valid until Sun Sep
3 063526 2006 Enter MyProxy pass
phrase Verifying password - Enter MyProxy pass
phrase A proxy valid for 168 hours (7.0 days)
for user mexicocity20 now exists on
grid001.ct.infn.it. mexicocity20_at_eela-132
mexicocity20
Password MEXICOCITY
Choose a new password This password will be
referred later as myproxy password
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Get credentials from the MyProxy server

• gtmyproxy-get-delegation
• gtvoms-proxy-info -all

mexicocity20_at_eela-132 mexicocity20
myproxy-get-delegation Enter MyProxy pass
phrase A proxy has been received for user
mexicocity20 in /tmp/x509up_u519 mexicocity20_at_eel
a-132 mexicocity20 voms-proxy-info -all subject
/CIT/OGILDA/OUPersonal Certificate/LMEXICO
CITY/CNMEXICOCITY20/Emailroberto.barbera_at_ct.infn
.it/CNproxy/CNproxy/CNproxy issuer
/CIT/OGILDA/OUPersonal Certificate/LMEXICOCITY
/CNMEXICOCITY20/Emailroberto.barbera_at_ct.infn.it/
CNproxy/CNproxy identity /CIT/OGILDA/OUPer
sonal Certificate/LMEXICOCITY/CNMEXICOCITY20/Ema
ilroberto.barbera_at_ct.infn.it/CNproxy/CNproxy ty
pe unknown strength 512 bits path
/tmp/x509up_u519 timeleft 115133 VO
gilda extension information VO
gilda subject /CIT/OGILDA/OUPersonal
Certificate/LMEXICOCITY/CNMEXICOCITY20/Emailrob
erto.barbera_at_ct.infn.it issuer
/CIT/OGILDA/OUHost/LINFN Catania/CNvoms.ct.in
fn.it/Emailemidio.giorgio_at_ct.infn.it attribute
/gilda/RoleNULL/CapabilityNULL timeleft
113459 mexicocity20_at_eela-132 mexicocity20
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Destroying local voms proxy

• gtvoms-proxy-destroy
• gtvoms-proxy-info -all

mexicocity20_at_eela-132 mexicocity20
voms-proxy-destroy mexicocity20_at_eela-132
mexicocity20 voms-proxy-info -all Couldn't
find a valid proxy. mexicocity20_at_eela-132
mexicocity20
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The Genius Home Page
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then authenticating on GENIUS using myproxy
passwd

• GRID authentication
• The password is the one set when issued the
  myproxy-init command

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Exercise 2

• Launch a job described by a JDL which already
  exists in the UI
• We suppose to have the JDL file and all the other
  required data (input sandbox files) on the UI and
  we shall try to submit the job on the GRID

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Authentication with MyProxy
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GRID Settings
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Set VO/VOMS
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Selecting jdl file
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Specify the CE Resource
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Job successfully submitted
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Job completed successfully
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Retrieving Job results 1/3
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Retrieving Job results 2/3
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Retrieving job results 3/3
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Exercise 3

• Prepare a job described by a JDL and store it on
  the UI
• In this exercise we are going to create a new
  file on the UI called helloworld.jdl describing a
  simple job

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First step create the JDL file
JobType "Normal" Executable
"/bin/echo" Arguments "Hello World !"
StdOutput "std.out" StdError "std.err"
OutputSandbox "std.out","std.err"
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The JDL is ready to be executed
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Inspecting our JDL
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Exercise 4

• Submit the job described by the JDL created in
  the previous exercise
• In this exercise we are going to submit the job
  described by the JDL file edited in the previous
  step

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Select JDL file 1/3
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Submitting the JDL 2/3
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Retrieving job results 3/3
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Exercise 5

• Preparing a job described by the JDL with a file
  to ship in the input sandbox
• In this exercise we are going prepare the JDL
  description for a job which executes a shell
  script. The .sh file will be shipped to the CE
  through the input sandbox

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Step 1 Create the shell script
!/bin/sh MY_NAME"Your name" WORKER_NODE_NAMEg
lite-tutor.ct.infn.it echo "Hello MY_NAME, from
WORKER_NODE_NAME" ls -a echo "This job is
running on this CE " /opt/edg/bin/edg-brokerinfo
getCE
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Step2 create the JDL file
Executable "startScript.sh" StdOutput
"std.out" StdError "std.err"
VirtualOrganisation "gilda" InputSandbox
"startScript.sh" OutputSandbox
"std.out","std.err",".BrokerInfo" RetryCount
7
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Exercise 6

• Submitting the job prepared in the previous
  exercise
• In this exercise we are going submit the job
  which executes a shell script, prepared in the
  previous exercise. The .sh file will be shipped
  to the CE through the input sandbox

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Submitting job
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Retrieving the results