Operating system issues and HiPerGator - University of Florida
Operating system issues and HiPerGator Erik Deumens Director Research Computing Information Technology University of Florida Contents UF infrastructure for data and computing Operating system issues
Base OS: Linux and Windows Virtual machines - KVM Scheduler Security, authentication, authorization Applications management Storage Restricted data Portals Web services
UF Information Technology mission Provide high- Data Center Opened Jan 2013 Florida Lambda Rail
per second 2015 100 Gigabit Internet2 2013 100 Gigabit per second in
HiPerGator supercomputer cores in 2013 16,000 Expansion 50,000 cores in 2016 Base OS
RedHat Enterprise Linux 6 1,900 nodes strongly interconnected OS consistency is crucial -> Automation configuration and change Foreman Puppet Virtual machines KVM Some projects and applications require Windows OS Some projects require kernel modifications
-> Virtual machines New this summer Run VMs using KVM libvirt with RHEL as host Like applications Run next to native RHEL applications for HPC and HTC UF Apps for Research: ready to go cloud apps Scheduler Moab -> Slurm
Login nodes Interactive nodes GUI nodes Work nodes Run jobs batch Scheduler matches available nodes expected times Requested resources: nr cores, RAM core configuration
Nr core per node shared RAM Nr nodes distributed RAM interconnect causes delays Security, authentication, authorization GatorLink identity UF policy Shibboleth authentication
Authorization by LDAP server UID GID Group membership Application management Many applications Avoid every having their own copy Manage with module Set path and other environment variables
We provide Latest version Current stable version Last version So that people do not have to upgrade at the same time Storage
High performance Parallel Random access from many nodes and cores 21,000 processes now 51,000 soon when expansion is in full use Lustre file system Hierarchical infrastructure Move files by policy to slower and cheaper disks Integrate SSDs for fast portion
Restricted data Whole new world Guarantee confidentiality to be compliant with Federal State Regulations and laws on special data ePHI electronic Protected Health Information (HIPAA) Export control ITAR/EAR
General new rule 2016 Controlled Unclassified Information (CUI) Portals & web services Researcher projects now need live data as result Accessible from web
Through the portal With some form of authentication Users can run programs, algorithms, databases On HiPerGator Users can upload their data
Compare with available data Run published algorithms on it Without having to install the published software first To use it and verify the inventors claims Questions?
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