[GitHub] [spark] tgravescs commented on a change in pull request #24374: [SPARK-27366][CORE] Support GPU Resources in Spark job scheduling

[GitBox <gi...@apache.org>]

tgravescs commented on a change in pull request #24374: [SPARK-27366][CORE] Support GPU Resources in Spark job scheduling
URL: https://github.com/apache/spark/pull/24374#discussion_r275375117
 
 

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 File path: core/src/test/scala/org/apache/spark/scheduler/CoarseGrainedSchedulerBackendSuite.scala
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 @@ -184,3 +278,49 @@ class CoarseGrainedSchedulerBackendSuite extends SparkFunSuite with LocalSparkCo
     )
   }
 }
+
+/** Simple cluster manager that wires up our mock backend for the gpu resource tests. */
+private class CSMockExternalClusterManager extends ExternalClusterManager {
+
+  var ts: TaskSchedulerImpl = _
+
+  val MOCK_REGEX = """coarseclustermanager\[(.*)\]""".r
+  def canCreate(masterURL: String): Boolean = MOCK_REGEX.findFirstIn(masterURL).isDefined
+
+  def createTaskScheduler(
+      sc: SparkContext,
+      masterURL: String): TaskScheduler = {
+    ts = mock[TaskSchedulerImpl]
+    when(ts.sc).thenReturn(sc)
+    when(ts.applicationId()).thenReturn("appid1")
+    when(ts.applicationAttemptId()).thenReturn(Some("attempt1"))
+    when(ts.schedulingMode).thenReturn(SchedulingMode.FIFO)
+    when(ts.nodeBlacklist()).thenReturn(Set.empty[String])
+    val frameSize = RpcUtils.maxMessageSizeBytes(sc.conf)
 
 Review comment:
   not needed here

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