NVIDIA GTC 2018: Enabling GPU-as-a-Service Providers with Red Hat OpenShift
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Jeremy Eder of Red Hat discusses enabling GPU-as-a-Service using Red Hat OpenShift. He outlines how OpenShift abstracts away infrastructure, provides high performance features like GPU support, and enables containerization of software. Eder then demonstrates how to deploy GPU workloads on OpenShift using device plugins, extended resources, and optimized configurations.
![JEREMY EDER - RED HAT PERFORMANCE ENGINEERING
Commoditizing GPU-as-a-Service Providers with Red Hat OpenShift
Tuesday, Mar 27, 1:00 PM - 1:25 PM, Room 210E
Red Hat OpenShift Container Platform, with Kubernetes at it's core, can play an
important role in building flexible hybrid cloud infrastructure. By abstracting
infrastructure away from developers, workloads become portable across any
cloud. With NVIDIA Volta GPUs now available in every public cloud [1], as well as
from every computer maker, an abstraction library like OpenShift becomes even
more valuable. Through demonstrations, this session will introduce you to
declarative models for consuming GPUs via OpenShift, as well as the two-level
scheduling decisions that provide fast placement and stability.
25](https://image.slidesharecdn.com/2018-nvidia-gtc-jeremy-eder-commoditizing-gpu-as-a-service-providers-with-openshift-180329204716/85/NVIDIA-GTC-2018-Enabling-GPU-as-a-Service-Providers-with-Red-Hat-OpenShift-25-320.jpg)
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NVIDIA GTC 2018: Enabling GPU-as-a-Service Providers with Red Hat OpenShift
- 1. JEREMY EDER - RED HAT PERFORMANCE ENGINEERING1 Enabling GPU-as-a-Service Providers with Red Hat OpenShift @jeremyeder Senior Principal Software Engineer, Red Hat March, 2018
- 2. JEREMY EDER - RED HAT PERFORMANCE ENGINEERING Agenda ● OpenShift Cluster Overview ● Infrastructure Abstraction ● High Performance Features ● GPU Overview 2
- 3. JEREMY EDER - RED HAT PERFORMANCE ENGINEERING Community Powered Innovation 3
- 4. JEREMY EDER - RED HAT PERFORMANCE ENGINEERING What does an OpenShift Cluster look like? SERVICE LAYER ROUTING LAYER PERSISTENT STORAGE REGISTRY RHEL NODE C C RHEL NODE C C RHEL NODE c C C RHEL NODE C C RHEL NODE C RHEL NODE C RED HAT ENTERPRISE LINUX MASTER API/AUTHENTICATION DATA STORE SCHEDULER HEALTH/SCALING PHYSICAL VIRTUAL PRIVATE PUBLIC HYBRID 4
- 5. JEREMY EDER - RED HAT PERFORMANCE ENGINEERING Abstract away any infrastructure SERVICE LAYER ROUTING LAYER PHYSICAL VIRTUAL PRIVATE PUBLIC HYBRID ● Bare Metal ● RHV ● OpenStack ● VMware ● GCE ● Azure ● AWS ● BYO nodes... 5
- 6. JEREMY EDER - RED HAT PERFORMANCE ENGINEERING 6 One Platform to... OpenShift is the single platform to run any application: ● Old or new ● Monolithic/Microservice Big Data NFV FSI Animation ISVsHPC Machine Learning 6
- 7. JEREMY EDER - RED HAT PERFORMANCE ENGINEERING 7 High Performance RFEs by Vertical Feature FSI NFV ISV BD/ML ANIM HPC NUMA (cpuset.cpus and cpuset.mems) Yes Yes Yes Maybe Maybe Yes Device Passthrough (NIC/Disk/GPU etc...) Yes Yes Yes Maybe Maybe Yes sysctl Support (non-namespaced too) Yes Yes Yes Yes Yes Yes Separation of control- and data-plane Yes Yes Yes Yes Yes Yes Node “fitness” (extended health info) Yes Yes Maybe Maybe Maybe Yes Multi-homed pods Yes Yes Maybe Yes Yes Yes Kernel Modules (DKMS-ish) Yes Yes Maybe Maybe Yes Maybe Hugepages Yes Yes Yes Yes Maybe Maybe 7
- 8. JEREMY EDER - RED HAT PERFORMANCE ENGINEERING Enable containerization of Infrastructure Software ● Software-defined Storage and Networking ● Packet switching and routing tiers ● Multi-workloads (very different) within a single cluster ○ Layered schedulers (HPC/grid) ● Many more... Why do this? 8
- 9. JEREMY EDER - RED HAT PERFORMANCE ENGINEERING ● Gluster/Container Native Storage ● Ceph ● OpenStack ● rad analytics ● KubeVirt Enable containerization of Red Hat’s products 9
- 10. JEREMY EDER - RED HAT PERFORMANCE ENGINEERING ● Resource Management Working Group ○ Features Delivered ■ Device Plugins (GPU/Bypass/FPGA) ■ CPU Manager (exclusive cores) ■ Huge Pages Support ○ Extensive Roadmap ● Intel, IBM, Google, NVIDIA, Red Hat, many more... Upstream First: Kubernetes Working Groups 10
- 11. JEREMY EDER - RED HAT PERFORMANCE ENGINEERING ● Network Plumbing Working Group ○ Formalized Dec 2017 ● Goal is to implement an out of tree, pseudo-standard collection of CRDs for multiple networks, owned by sig-network, *out of tree* ● Separate control- and data-plane, Overlapping IPs, Fast Data-plane ● IBM, Intel, Red Hat, Huawei, Cisco, Tigera...at least. Upstream First: Kubernetes Working Groups 11
- 12. JEREMY EDER - RED HAT PERFORMANCE ENGINEERING GPU CLUSTER TOPOLOGY 12
- 13. JEREMY EDER - RED HAT PERFORMANCE ENGINEERING Control Plane Compute Nodes and Storage Tier Infrastructure master and etcd master and etcd master and etcd registry and router registry and router LB registry and router OpenShift Cluster Topology 13
- 14. JEREMY EDER - RED HAT PERFORMANCE ENGINEERING Compute Nodes... ● How to enable software to take advantage of “special” hardware ● Create Node Pools ○ Mark them as “special” ○ Taints/Tolerations ○ ExtendedResourceTole ration OpenShift Cluster Topology 14
- 15. JEREMY EDER - RED HAT PERFORMANCE ENGINEERING Compute Nodes... ● How to enable software to take advantage of “special” hardware ● Tune/Configure the OS ○ Tuned Profiles ○ CPU Isolation ○ sysctls OpenShift Cluster Topology 15
- 16. JEREMY EDER - RED HAT PERFORMANCE ENGINEERING Unsafe ● Experimental Kubelet Flag ● kernel.sem* ● kernel.shm* ● kernel.msg* ● fs.mqueue.* ● net.* In OpenShift, there are three “types” of sysctls Safe ● Enabled by default ● kernel.shm_rmid_forced ● net.ipv4.ip_local_port_range ● net.ipv4.tcp_syncookies Node-level ● Can’t set from a pod ● Potentially affects other pods ● Many interesting sysctls ● Use TuneD 16 OpenShift Cluster Topology
- 17. JEREMY EDER - RED HAT PERFORMANCE ENGINEERING Compute Nodes... ● How to enable software to take advantage of “special” hardware ● Optimize your workload ○ Dedicate CPU cores ○ Consume hugepages OpenShift Cluster Topology 17
- 18. JEREMY EDER - RED HAT PERFORMANCE ENGINEERING Compute Nodes... ● How to enable software to take advantage of “special” hardware ● Enable the Hardware ○ Install drivers ○ Deploy Device Plugin OpenShift Cluster Topology 18
- 19. JEREMY EDER - RED HAT PERFORMANCE ENGINEERING Compute Nodes... ● How to enable software to take advantage of “special” hardware ● Consume the Device ○ KubeFlow Template deployment OpenShift Cluster Topology 19
- 20. JEREMY EDER - RED HAT PERFORMANCE ENGINEERING Kubernetes Deployment for STAC-A2 ● All-in-One Kubernetes Installation ● (hack/local-up-cluster.sh) ● Node labeled ● Containers: ○ RHEL7+CUDA9 ○ RHEL7+CUDA9+DEVICE-PLUGIN ○ RHEL7+CUDA9+STAC-A2 ● CUDA 9 ● 8 x NVIDIA Tesla V100 (Volta) GPUs ● HPE Apollo 6500 w/XL270d Gen9 ● Red Hat Enterprise Linux 7.4 ● Kubernetes 1.8 (setup info) ● nvidia-smi --applications-clocks=877,1380 ● https://rhelblog.redhat.com/2017/11/21/red-hat-and-partners-deliver-new-perf ormance-records-on-prominent-risk-analytics-benchmark/ ● https://news.developer.nvidia.com/a-new-stac-a2-record/ 20
- 21. JEREMY EDER - RED HAT PERFORMANCE ENGINEERING 21 Kubernetes Deployment for STAC-A2 Volta GPU Kubelet Device Plugin (daemonset) Kube Scheduler Volta GPU Volta GPU Volta GPU Volta GPU Volta GPU Volta GPU Volta GPU Benchmark (pod) resources: limits: nvidia.com/gpu: 8 kubectl create 21
- 22. JEREMY EDER - RED HAT PERFORMANCE ENGINEERING Benchmark (pod) resources: limits: nvidia.com/gpu: 8 22 Kubernetes Deployment for STAC-A2 Volta GPU Kubelet Device Plugin (daemonset) Kube Scheduler Volta GPU Volta GPU Volta GPU Volta GPU Volta GPU Volta GPU Volta GPU kubectl create 22
- 23. JEREMY EDER - RED HAT PERFORMANCE ENGINEERING ● Early KubeFlow involvement ● radanalytics templates for ML-workflow on OpenShift ● Machine-Learning OpenShift Commons ● Demo Repositories ○ https://github.com/zvonkok/nvidia-k8s ○ https://github.com/redhat-performance/openshift-psap Recent GPU-related work on OpenShift 23
- 24. JEREMY EDER - RED HAT PERFORMANCE ENGINEERING THANK YOU plus.google.com/+RedHat linkedin.com/company/red-hat youtube.com/user/RedHatVideos facebook.com/redhatinc twitter.com/RedHatNews 24
- 25. JEREMY EDER - RED HAT PERFORMANCE ENGINEERING Commoditizing GPU-as-a-Service Providers with Red Hat OpenShift Tuesday, Mar 27, 1:00 PM - 1:25 PM, Room 210E Red Hat OpenShift Container Platform, with Kubernetes at it's core, can play an important role in building flexible hybrid cloud infrastructure. By abstracting infrastructure away from developers, workloads become portable across any cloud. With NVIDIA Volta GPUs now available in every public cloud [1], as well as from every computer maker, an abstraction library like OpenShift becomes even more valuable. Through demonstrations, this session will introduce you to declarative models for consuming GPUs via OpenShift, as well as the two-level scheduling decisions that provide fast placement and stability. 25