runtime for Relay • Dynamic codegen (WIP) ☐ Kernel dispatch for a single op ☐ Graph dispatch for a (sub-)graph In collaboration with Jared Roesch, Zhi Chen, Wei Chen ## “Any” in Relay typing Any: uts)] ## Relay virtual machine relay.vm.compile Relay Executable export Relay VM Executor  exe = relay.vm.compile(mod compile(mod, target) vm = relay.vm.VirtualMachine(exe) vm.init(ctx) vm.invoke("main", *args) Relay Object (hardware independent) Code segment Data segment VM Func 0 Const 0 VM Func 1 Const 1

Troubleshooting Component & Cluster Health Observing Flows with Hubble Observing flows with Hubble Relay Connectivity Problems Policy Troubleshooting etcd (kvstore) Symptom Library Useful Scripts Reporting Compatibility Guarantees API Reference Hubble internals Hubble Architecture Hubble server Hubble Relay Reference Command Cheatsheet Command utilities: Command examples: Kubernetes examples: Command Reference network traffic, deploy Hubble Relay and the UI as follows on your existing installation: Installation via Helm If you installed Cilium via helm install, you may enable Hubble Relay and UI with the following

from tvm import relay 2. Load a pretrained network mod, params = relay.testing.mobilenet.get_workload(batch_size=1) 3. Partition and build the network with an external codegen mod = relay.build_extern(mod build_extern(mod, "dnnl") 4. Run the inference exe = relay.create_executor("vm", mod=mod, ctx=tvm.cpu(0)) data = np.random.uniform(size=(1, 3, 224, 224)).astype("float32") out = exe.evaluate() 6f0867cc51cc11426/p5_1.jpg) Relay IR Graph Annotation with Your Annotator Graph Partitioning Your Codegen Serialized Subgraph Library LLVM, CUDA, Metal, VTA Relay Runtime (VM, Graph Runtime, Interpreter)

Troubleshooting Component & Cluster Health Observing Flows with Hubble Observing flows with Hubble Relay Connectivity Problems Policy Troubleshooting etcd (kvstore) Cluster Mesh Troubleshooting Symptom Library ConfigMap cilium-config to enable Hubble... ♻ Restarted Cilium pods � Generating certificates for Relay... 2021/04/13 17:11:23 [INFO] generate received request 2021/04/13 17:11:23 [INFO] received CSR 541769558498727586273511 � Deploying Relay... Tip Enabling Hubble requires the TCP port 4244 to be open on all nodes running Cilium. This is required for Relay to operate correctly. Run cilium status

Component & Cluster Health • Observing Flows with Hubble • Observing flows with Hubble Relay • Connectivity Problems • Policy Troubleshooting • etcd (kvstore) • Cluster Patching ConfigMap cilium-config to enable Hubble... Restarted Cilium pods Generating certificates for Relay... 2021/04/13 17:11:23 [INFO] generate received request 2021/04/13 17:11:23 [INFO] received CSR 2021/04/13 4541769558498727586273511 Deploying Relay... ## Tip Enabling Hubble requires the TCP port 4244 to be open on all nodes running Cilium. This is required for Relay to operate correctly. Run cilium status

Troubleshooting Component & Cluster Health Observing Flows with Hubble Observing flows with Hubble Relay Connectivity Problems Policy Troubleshooting etcd (kvstore) Symptom Library Useful Scripts Reporting Compatibility Guarantees API Reference Hubble internals Hubble Architecture Hubble server Hubble Relay Reference Command Cheatsheet Command utilities: Command examples: Kubernetes examples: Command Reference on the host network. This allows Hubble Relay to communicate with all the Hubble instances in the cluster. Hubble CLI and Hubble UI in turn connect to Hubble Relay to provide cluster-wide networking visibility

Completely add new ops from scratch • New Relay passes and TVM schedules required • AlterOpLayout, Graph Fusion etc require work/operator • No reuse of existing Relay and TVM infrastructure. ## Option 2 2 – Lower to a sequence of existing Relay operators • We introduced a new Relay dialect – QNN to encapsulate this work • Complete reuse of Relay pass infrastructure • Possible reuse of TVM schedules qnn.conv2d, qnn.dense • qnn.concatenate • qnn.add, qnn.mul ## • QNN operators will be lowered to Relay operators • QNN Optimization passes • Some optimizations are easier at QNN level Intel x86 VNNI

10.1. 以集群管理员身份查看监控仪表板 98 10.2. 以开发者身份查看监控仪表板 99 10.3. 后续步骤 99 第11章 使用 BARE METAL EVENT RELAY 监控裸机事件 100 11.1. 关于裸机事件 100 11.2. 裸机事件的工作方式 100 11.3. 安装 AMQ 消息传递总线 104 11.4. 订阅集群节点的 REDFISH 其他资源 使用 Developer 视角监控项目和应用程序的指标 #### 10.3. 后续步骤 访问第三方监控 UI 和 API ## 第 11 章 使用 BARE METAL EVENT RELAY 监控裸机事件  ## 重要 的功能，并有机会在开发阶段提供反馈意见。 有关红帽技术预览功能支持范围的更多信息，请参阅技术预览功能支持范围。 #### 11.1. 关于裸机事件 使用 Bare Metal Event Relay 将 OpenShift Container Platform 集群中运行的应用程序订阅到底层裸机主机上生成的事件。Redfish 服务在节点上发布事件，并将其传送到高级消息队列中。 裸机事件基

binlogctl 工具 ..... 1308 11.10.10 Binlog Consumer Client 用户文档 ..... 1311 11.10.11 TiDB Binlog Relay Log ..... 1314 11.10.1 集群间双向同步 ..... 1315 11.10.13 TiDB Binlog 术语表 ..... 1319 11.10.14 故障诊断 (DM) 中优化 relay log 的使用方式 - 恢复 source 配置中 enable-relay 开关。 - 增加通过 start-relay 和 stop-relay 命令动态开启和关闭 relay log 的功能。 - relay log 的开启状态与 source 绑定，source 迁移到任意 DM-worker 均保持原有开启或关闭状态。 - relay log 的存放路径移至 降低在同步大量表时的同步延时 #3900 * 减少 TiKV 节点宕机后 KV client 恢复的时间 #3191 ## - TiDB Data Migration (DM) * 降低开启 relay 时的 CPU 使用率 #2214 - TiDB Lightning * 在 TiDB-backend 模式下，默认改用乐观事务进行写入来提升性能 #30953 - Dumpling * 提升

def approx_exp(x): x = relay.minimum(relay.maximum(x, C(-88.0)), C(88.0)) x = C(127.0) + x * C(1.44268504) i = relay.cast(x, "int32") xf = relay.cast(i, "float32") exponent = relay.left_shift(i, relay.expr.const(23, "int32")) exponent = relay.reinterpret(exponent, "float32") return exponent * Y ## TVM specifics - Add relay.nn.sparse_dense block-sparse matrix multiplication (~50 lines of TVM IR) - Add relay.reinterpret to implement rational approximations in user space (~10 lines of Relay IR) - A few days of work - TVM sampling model running