GEC21 Experimenter/Developer Roundtable (Experimenter) Paul Ruth RENCI / UNC Chapel Hill

The 21st GENI Engineering Conference October 20-23, 2014 Indiana University, Bloomington, IN ADCIRC Storm Surge Model Finite Element Very high spatial resolution (~1.2M triangles) Efficient MPI implementation, scales to thousands of cores Typically use cores for forecasting applications Used for coastal flooding simulations –FEMA flood insurance studies –Forecasting systems –Research applications

The 21st GENI Engineering Conference October 20-23, 2014 Indiana University, Bloomington, IN ADCIRC Storm Surge Model on GENI Slice attributes –38 VMs (152 compute cores) –6 GENI racks –Custom image replicated across testbeds –ExoGENI Groups Storage (1 TB) –InstaGENI Shared VLANs Xen VMs (4 core, 4 GB memory, 30 GB storage) –Inter-domain GENI Stitching ExoGENI Stitching 3

The 21st GENI Engineering Conference October 20-23, 2014 Indiana University, Bloomington, IN Demo GENI Slice 4 … … Condor Scheduler iSCSI Storage … … NFS W W W W W W W W OVS InstaGENI ExoGENI

The 21st GENI Engineering Conference October 20-23, 2014 Indiana University, Bloomington, IN Demo GENI Slice 5 … … Condor Scheduler iSCSI Storage … … NFS W W W W W W W W OVS Not just one slice! 3 slices 1 Stitcher call 4 Omni calls Not just one slice! 3 slices 1 Stitcher call 4 Omni calls InstaGENI ExoGENI

The 21st GENI Engineering Conference October 20-23, 2014 Indiana University, Bloomington, IN Demo GENI Slice 6 InstaGENI ExoGENI

The 21st GENI Engineering Conference October 20-23, 2014 Indiana University, Bloomington, IN Slice 1: ADCIRC-CORE 7 … Condor Scheduler iSCSI Storage … NFS W W W W OVS -1 call to the stitcher -5 GENI calls by the stitcher -1 call to the stitcher -5 GENI calls by the stitcher GENI Calls: 1.ExoSM 2.Ion 3.GPO-IG 4.ILL-IG 5.WI-IG InstaGENI ExoGENI

The 21st GENI Engineering Conference October 20-23, 2014 Indiana University, Bloomington, IN Shared VLANs 8 … Condor Scheduler iSCSI Storage … NFS W W W W OVS Perform Operational Action: Create Shared VLANS Perform Operational Action: Create Shared VLANS InstaGENI ExoGENI

The 21st GENI Engineering Conference October 20-23, 2014 Indiana University, Bloomington, IN Slice 2: Wisconsin Group 9 … … Condor Scheduler iSCSI Storage … NFS W W W W W W OVS InstaGENI ExoGENI

The 21st GENI Engineering Conference October 20-23, 2014 Indiana University, Bloomington, IN Slice 2: Illinois Group 10 … … Condor Scheduler iSCSI Storage … … NFS W W W W W W W W OVS InstaGENI ExoGENI

The 21st GENI Engineering Conference October 20-23, 2014 Indiana University, Bloomington, IN Complete Slice(s) 11 … … Condor Scheduler iSCSI Storage … … NFS W W W W W W W W OVS InstaGENI ExoGENI

The 21st GENI Engineering Conference October 20-23, 2014 Indiana University, Bloomington, IN Experiences Happy that it works at all! GENI Stitching –Failures can cascade –Limited to one stitch per slice per ExoGENI site. –Can restart complicated ExoGEN slice InstaGENI –Slow booting compute nodes –Yay! Bigger nodes (4 cores, 30 GB disks) –Shared VLANs are awkwards Tools –None of the tools can visualize all aspects of slices 12

GEC21 Experimenter/Developer Roundtable (Developer) Victor Orlikowski Duke University

The 21st GENI Engineering Conference October 20-23, 2014 Indiana University, Bloomington, IN ORCA 5 Recovery –Should not be seen by users –Restart and redeploy ExoGENI services without effecting running slices. Storage on bare metal Hybrid mode Distributed actor registry 14

The 21st GENI Engineering Conference October 20-23, 2014 Indiana University, Bloomington, IN Rspec Extension Storage –~5 TB of sliverable storage on most racks –Add an iSCSI target to a slice –Can now be used with Rspecs 15

The 21st GENI Engineering Conference October 20-23, 2014 Indiana University, Bloomington, IN RSpec Extension: Groups Multiple nodes with shared specification –Same: image, instance type, location, networks Templated postboot scripts customize the nodes 16

The 21st GENI Engineering Conference October 20-23, 2014 Indiana University, Bloomington, IN Thanks 17