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SIMCLOUD: Running Operational Simulators in the Cloud
This document discusses running operational spacecraft simulators in the cloud. It presents SIMCLOUD, a concept that uses cloud computing to deploy and run simulators. The SIMCLOUD system includes a cloud agent, cloud daemons, and a cloud management API to launch simulators on virtual machines in the cloud. Testing showed running simulators virtually incurred 10-30% overhead compared to physical machines. The authors conclude virtualization and cloud concepts can provide benefits like simplified use and elastic resources for simulator users.
SIMCLOUD: Running Operational Simulators in the Cloud
- 1. Telespazio VEGA DeutschlandGmbH SIMCLOUD: Running Operational Simulators in the Cloud A. Langs, C. Mehlig (Telespazio VEGA), S. Ferreri (Terma GmbH), M. Sarkarati (ESA/ESOC) 07/04/2015
- 2. © Telespazio VEGADeutschland Overview 2SESP 2015 - SIMCLOUD: Running Operational Simulators in the Cloud 07/04/2015 Introduction Platform-as-a-Service Software-as-a-Service Deployment Concept Cloud Based Provisioning The SIMSAT Cloud Agent and Daemon The Cloud Management API User Interface Performance Analysis Conclusions and Future Work
- 3. © Telespazio VEGADeutschland Introduction 3 SIMSAT Operational Spacecraft Simulators SESP 2015 - SIMCLOUD: Running Operational Simulators in the Cloud 07/04/2015 MMISimulation Kernel CORBA Naming Service Daemon
- 4. © Telespazio VEGADeutschland Introduction 4 Nowadays: Operational Simulator Delivery and Deployment SESP 2015 - SIMCLOUD: Running Operational Simulators in the Cloud 07/04/2015 ESA Dedicated Hardware Simulator #1 Reference Architecture Generic Models Ground Models … Simulator Delivery Simulator #1 Simulator #2 Simulator #... … … … SIMSAT
- 5. © Telespazio VEGADeutschland Introduction 5 SIMCLOUD: Cloud Based Deployment and Runtime SESP 2015 - SIMCLOUD: Running Operational Simulators in the Cloud 07/04/2015 SIMSAT Ground Models Generic Models Simulator #1 Simulator #2 Simulator #... Simulator Delivery ESA Cloud … Simulator #1 Simulator #2 Simulator #1 Simulator #2 Reference Architecture
- 6. © Telespazio VEGADeutschland Platform-as-a-Service and Software-as-a-Service 6SESP 2015 - SIMCLOUD: Running Operational Simulators in the Cloud 07/04/2015 Software-as-a-Service Platform-as-a-Service
- 7. © Telespazio VEGADeutschland Deployment Concept 7 „Deployments“ Folder Containing a „Deployment“ per Operational Simulator SESP 2015 - SIMCLOUD: Running Operational Simulators in the Cloud 07/04/2015
- 8. © Telespazio VEGADeutschland Cloud Based Provisioning 8 Original and SIMCLOUD Approach for Starting Simulators in SIMSAT SESP 2015 - SIMCLOUD: Running Operational Simulators in the Cloud 07/04/2015 Daemons MMI Simulation Selection Simulation Launch VM / HW Central PaaS Sim A Sim B Sim C Sim A Sim B Sim C Original SIMSAT SIMCLOUD Sim Sim 1 2 3 4 Start of daemon by the simulator user Start SIMSAT MMI to open a simulation on a specific daemon Start of cloud agent & daemon by the cloud operator Start SIMSAT MMI to open a simulation by name/version Daemon reports avail. simulators of single share folder Agent reports avail. simulators of deployments folder Launch of the simulation on the dedicated machine Launch of the simulation on the ESA Cloud
- 9. © Telespazio VEGADeutschland Cloud Based Provisioning 9 SimCloud Main Components SESP 2015 - SIMCLOUD: Running Operational Simulators in the Cloud 07/04/2015 Modified SIMSAT MMI Central PaaS server Cloud management layer ESA vCloud Shared file server with deployments
- 10. © Telespazio VEGADeutschland Cloud Based Provisioning 10 The SIMSAT Cloud Agent and Daemon SESP 2015 - SIMCLOUD: Running Operational Simulators in the Cloud 07/04/2015 Cloud Agent manages a number of Cloud Daemons Types of Cloud Daemons: shared elastic Cloud Agent can create additional VMs each running a Cloud Daemon
- 11. © Telespazio VEGADeutschland Cloud Based Provisioning 11 The Cloud Management API SESP 2015 - SIMCLOUD: Running Operational Simulators in the Cloud 07/04/2015 Additional layer using the VMware vCloud API Controls the virtual datacentre hosting the VMs in the ESA Cloud VMs are 1. created 2. started 3. configured 4. shut down 5. deleted
- 12. © Telespazio VEGADeutschland User Interface 12 „Open Simulation“ Dialog SESP 2015 - SIMCLOUD: Running Operational Simulators in the Cloud 07/04/2015 User confirmation Selection by simulator name/version
- 13. © Telespazio VEGADeutschland User Interface 13 Possible Results: Operational Simulator is … SESP 2015 - SIMCLOUD: Running Operational Simulators in the Cloud 07/04/2015 started on an existing machine not started at all (user aborts) started on a new VM
- 14. © Telespazio VEGADeutschland Performance Analysis Multiple operational simulators Comparison between Physical machine(s) Virtual machine Virtual machine on the ESA Cloud 14 Overview SESP 2015 - SIMCLOUD: Running Operational Simulators in the Cloud 07/04/2015 Credits: ESA
- 15. © Telespazio VEGADeutschland Performance Analysis 15 Virtualization Overhead SESP 2015 - SIMCLOUD: Running Operational Simulators in the Cloud 07/04/2015 Bepi Colombo Virtualization costs 10-30% performance Maximum speed factor while running simulator with Ground Stations „Free running“ mode after restored operational simulation state 0 0.5 1 1.5 2 2.5 3 3.5 0 1 3 4 Averagespeedfactor Number of Ground stations Physical (G7) ESA Cloud
- 16. © Telespazio VEGADeutschland Performance Analysis Maximum speed factor Generation time of operational configurations Simulator performance with multiple parallel emulators high logging rate under heavy load (with/without payload models) 16 Physical vs. Virtual: Test Cases SESP 2015 - SIMCLOUD: Running Operational Simulators in the Cloud 07/04/2015 Performance relative to physical machine (G8) Performance highly dependent on choice/set-up of the virtualization layer 0% 5% 10% 15% 20% 25% 30% 35% TC1 TC2 TC3 TC4 TC5 TC6 Physical (G7) ESA Cloud
- 17. © Telespazio VEGADeutschland Future Work 17 SIMCLOUD: From Proof-of-Concept to the SIMULUS Product SESP 2015 - SIMCLOUD: Running Operational Simulators in the Cloud 07/04/2015 Deployment Concept in the SIMSAT product Multi-User Multi-Version Multi-Mission Multi- SIMSAT
- 18. © Telespazio VEGADeutschland Future Work 18 Webinterface for the PaaS SESP 2015 - SIMCLOUD: Running Operational Simulators in the Cloud 07/04/2015
- 19. © Telespazio VEGADeutschland Conclusions … changed the architecture, design and code of multiple SIMULUS components … eases the runtime environment for simulator users 19 SIMCLOUD… SESP 2015 - SIMCLOUD: Running Operational Simulators in the Cloud 07/04/2015 Virtualization and Cloud Concepts… … can be a valuable alternative … benefits the end user simplified interaction elasticity and gentle usage of resources
- 20. Telespazio VEGA DeutschlandGmbH THANK YOU FOR YOUR ATTENTION
- 21. © Telespazio VEGADeutschland Image Sources SIMULUS logo: http://www.esa.int/spaceinimages/Images/2013/10/Simulus_no_claim Mission images: ESA 21SESP 2015 - SIMCLOUD: Running Operational Simulators in the Cloud 07/04/2015