mxnet-commits mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From GitBox <...@apache.org>
Subject [GitHub] yzhliu commented on a change in pull request #9678: [First cut] Scala Inference APIs
Date Thu, 01 Jan 1970 00:00:00 GMT
yzhliu commented on a change in pull request #9678: [First cut] Scala Inference APIs
URL: https://github.com/apache/incubator-mxnet/pull/9678#discussion_r166087804
 
 

 ##########
 File path: scala-package/infer/src/main/scala/ml/dmlc/mxnet/infer/MXNetHandler.scala
 ##########
 @@ -0,0 +1,82 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package ml.dmlc.mxnet.infer
+
+import java.util.concurrent._
+
+trait MXNetHandler {
+
+  def execute[T](f: => T): T
+
+  val executor: ExecutorService
+
+}
+
+object MXNetHandlerType extends Enumeration {
+
+  type MXNetHandlerType = Value
+  val SingleThreadHandler = Value("MXNetSingleThreadHandler")
+  val OneThreadPerModelHandler = Value("MXNetOneThreadPerModelHandler")
+}
+
+class MXNetOneThreadPerModelHandler extends MXNetHandler {
+
+  private val threadFactory = new ThreadFactory {
+
+    override def newThread(r: Runnable): Thread = new Thread(r) {
+      setName(classOf[MXNetOneThreadPerModelHandler].getCanonicalName)
+    }
+  }
+
+  override val executor: ExecutorService = Executors.newFixedThreadPool(10, threadFactory)
+
+  override def execute[T](f: => T): T = {
+    val task = new Callable[T] {
+      override def call(): T = {
+        // scalastyle:off println
+        println("threadId: %s".format(Thread.currentThread().getId()))
+        // scalastyle:on println
+        f
+      }
+    }
+    val result = executor.submit(task)
+    try {
+      result.get()
+    }
+    catch {
+      case e: ExecutionException => throw e.getCause()
+    }
+  }
+
+}
+
+object MXNetSingleThreadHandler extends MXNetOneThreadPerModelHandler {
+
+}
+
+object MXNetHandler {
+
+  def apply(): MXNetHandler = {
+    if (handlerType == MXNetHandlerType.OneThreadPerModelHandler) {
+      new MXNetOneThreadPerModelHandler
+    }
+    else {
 
 Review comment:
   place `else` the same line of `}`

----------------------------------------------------------------
This is an automated message from the Apache Git Service.
To respond to the message, please log on GitHub and use the
URL above to go to the specific comment.
 
For queries about this service, please contact Infrastructure at:
users@infra.apache.org


With regards,
Apache Git Services

Mime
View raw message