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Condor's Use of the Cisco Unified Computing System. Condor and UCS. How can UCS benefit a Condor pool Automated provisioning of machines with specialized configurations Experimenting with a small UCS system and our local Condor pools CHTC BaTLab. Center for High-Throughput Computing.

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Condor and ucs
Condor and UCS

  • How can UCS benefit a Condor pool

    • Automated provisioning of machines with specialized configurations

  • Experimenting with a small UCS system and our local Condor pools

    • CHTC

    • BaTLab


Center for high throughput computing
Center for High-Throughput Computing

  • Offers free compute resources to any researcher at UW-Madison

  • Extensive hands-on assistance for researchers

  • 2000 dedicated cores in CHTC

  • Many more cores available across campus and in OSG


Batlab
BaTLab

  • Automated building and testing of software

  • Dozen of platforms

  • Used by Condor and many other projects

  • www.batlab.org


Use cases
Use Cases

  • Switching OS on a machine

    • Match resource mix to demand

  • Jobs that require hardware access

    • GPUs, hardware counters, VM testing

  • Jobs that need special network configurations

    • Sensitive data (HIPPA)

    • Tests analyzing network traffic


Switching os on a machine
Switching OS on a Machine

  • BaTLab has 1 or 2 machines per platform

  • Spike in jobs for a platform can cause large backlog

  • OS-switching machines can help manage backlog


Tools we re using
Tools We’re Using

  • Offline ads

  • Condor rooster

  • GoUCS

  • PXE boot

  • Cobbler

  • Puppet


Machine startup

S

S

S

S

S

J

J

J

Machine Startup

rooster

Central Manager

negotiator

collector

GoUCS

UCS

P

P

Submit Machine

Execute Machine

Execute Machine

cobbler

PXE

startd

puppet

schedd


Future work
Future Work

  • Improve offline ads and rooster

    • Multiple ads represent one machine

    • Pick most-matched ad to awaken

    • Shut down machine to switch ads


Future use case
Future Use Case

  • Jobs that require hardware access

    • Jobs that use GPUs, hardware counters, VMs

    • Administrator access required

    • Jobs may corrupt OS or hardware

    • Need hardware-level method to stop job and re-image machine


Future use case1
Future Use Case

  • Special Network Configurations

    • Jobs with sensitive data

      • E.g. HIPPA data

      • Configure machine on secured network

    • Jobs analyzing network traffic

      • E.g. Three-machine test where Alice and Bob communicate and Eve listens in

      • Configure machines on an isolated network


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