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-rw-r--r--simulator/opendc/opendc-experiments-sc20/src/main/kotlin/com/atlarge/opendc/experiments/sc20/Main.kt2
-rw-r--r--simulator/opendc/opendc-experiments-sc20/src/main/kotlin/com/atlarge/opendc/experiments/sc20/experiment/ExperimentHelpers.kt21
-rw-r--r--simulator/opendc/opendc-experiments-sc20/src/main/kotlin/com/atlarge/opendc/experiments/sc20/experiment/Run.kt6
-rw-r--r--simulator/opendc/opendc-experiments-sc20/src/main/kotlin/com/atlarge/opendc/experiments/sc20/experiment/monitor/ParquetExperimentMonitor.kt2
-rw-r--r--simulator/opendc/opendc-experiments-sc20/src/main/kotlin/com/atlarge/opendc/experiments/sc20/runner/execution/ThreadPoolExperimentScheduler.kt2
-rw-r--r--simulator/opendc/opendc-experiments-sc20/src/main/kotlin/com/atlarge/opendc/experiments/sc20/runner/internal/DefaultExperimentRunner.kt2
-rw-r--r--simulator/opendc/opendc-experiments-sc20/src/main/kotlin/com/atlarge/opendc/experiments/sc20/telemetry/parquet/ParquetEventWriter.kt10
-rw-r--r--simulator/opendc/opendc-experiments-sc20/src/main/kotlin/com/atlarge/opendc/experiments/sc20/telemetry/parquet/ParquetHostEventWriter.kt2
-rw-r--r--simulator/opendc/opendc-experiments-sc20/src/main/kotlin/com/atlarge/opendc/experiments/sc20/telemetry/parquet/ParquetProvisionerEventWriter.kt2
-rw-r--r--simulator/opendc/opendc-experiments-sc20/src/main/kotlin/com/atlarge/opendc/experiments/sc20/telemetry/parquet/ParquetRunEventWriter.kt2
-rw-r--r--simulator/opendc/opendc-experiments-sc20/src/main/kotlin/com/atlarge/opendc/experiments/sc20/trace/Sc20RawParquetTraceReader.kt7
-rw-r--r--simulator/opendc/opendc-experiments-sc20/src/main/kotlin/com/atlarge/opendc/experiments/sc20/trace/Sc20StreamingParquetTraceReader.kt30
-rw-r--r--simulator/opendc/opendc-experiments-sc20/src/main/kotlin/com/atlarge/opendc/experiments/sc20/trace/Sc20TraceConverter.kt12
-rw-r--r--simulator/opendc/opendc-experiments-sc20/src/main/kotlin/com/atlarge/opendc/experiments/sc20/trace/WorkloadSampler.kt2
-rw-r--r--simulator/opendc/opendc-experiments-sc20/src/test/kotlin/com/atlarge/opendc/experiments/sc20/Sc20IntegrationTest.kt4
15 files changed, 57 insertions, 49 deletions
diff --git a/simulator/opendc/opendc-experiments-sc20/src/main/kotlin/com/atlarge/opendc/experiments/sc20/Main.kt b/simulator/opendc/opendc-experiments-sc20/src/main/kotlin/com/atlarge/opendc/experiments/sc20/Main.kt
index ec721ff0..cd85351e 100644
--- a/simulator/opendc/opendc-experiments-sc20/src/main/kotlin/com/atlarge/opendc/experiments/sc20/Main.kt
+++ b/simulator/opendc/opendc-experiments-sc20/src/main/kotlin/com/atlarge/opendc/experiments/sc20/Main.kt
@@ -41,9 +41,9 @@ import com.github.ajalt.clikt.parameters.options.required
import com.github.ajalt.clikt.parameters.types.choice
import com.github.ajalt.clikt.parameters.types.file
import com.github.ajalt.clikt.parameters.types.int
+import mu.KotlinLogging
import java.io.File
import java.io.InputStream
-import mu.KotlinLogging
/**
* The logger for this experiment.
diff --git a/simulator/opendc/opendc-experiments-sc20/src/main/kotlin/com/atlarge/opendc/experiments/sc20/experiment/ExperimentHelpers.kt b/simulator/opendc/opendc-experiments-sc20/src/main/kotlin/com/atlarge/opendc/experiments/sc20/experiment/ExperimentHelpers.kt
index b09c0dbb..3765f307 100644
--- a/simulator/opendc/opendc-experiments-sc20/src/main/kotlin/com/atlarge/opendc/experiments/sc20/experiment/ExperimentHelpers.kt
+++ b/simulator/opendc/opendc-experiments-sc20/src/main/kotlin/com/atlarge/opendc/experiments/sc20/experiment/ExperimentHelpers.kt
@@ -25,6 +25,7 @@
package com.atlarge.opendc.experiments.sc20.experiment
import com.atlarge.odcsim.Domain
+import com.atlarge.odcsim.SimulationContext
import com.atlarge.odcsim.simulationContext
import com.atlarge.opendc.compute.core.Flavor
import com.atlarge.opendc.compute.core.ServerEvent
@@ -45,10 +46,6 @@ import com.atlarge.opendc.experiments.sc20.experiment.monitor.ExperimentMonitor
import com.atlarge.opendc.experiments.sc20.trace.Sc20StreamingParquetTraceReader
import com.atlarge.opendc.format.environment.EnvironmentReader
import com.atlarge.opendc.format.trace.TraceReader
-import java.io.File
-import kotlin.math.ln
-import kotlin.math.max
-import kotlin.random.Random
import kotlinx.coroutines.ExperimentalCoroutinesApi
import kotlinx.coroutines.channels.Channel
import kotlinx.coroutines.delay
@@ -59,6 +56,10 @@ import kotlinx.coroutines.flow.takeWhile
import kotlinx.coroutines.launch
import kotlinx.coroutines.withContext
import mu.KotlinLogging
+import java.io.File
+import kotlin.math.ln
+import kotlin.math.max
+import kotlin.random.Random
/**
* The logger for this experiment.
@@ -85,7 +86,7 @@ suspend fun createFailureDomain(
val injector =
injectors.getOrPut(cluster) {
createFaultInjector(
- simulationContext.domain,
+ simulationContext,
random,
failureInterval
)
@@ -99,11 +100,12 @@ suspend fun createFailureDomain(
/**
* Obtain the [FaultInjector] to use for the experiments.
*/
-fun createFaultInjector(domain: Domain, random: Random, failureInterval: Double): FaultInjector {
+fun createFaultInjector(simulationContext: SimulationContext, random: Random, failureInterval: Double): FaultInjector {
// Parameters from A. Iosup, A Framework for the Study of Grid Inter-Operation Mechanisms, 2009
// GRID'5000
return CorrelatedFaultInjector(
- domain,
+ simulationContext.domain,
+ simulationContext.clock,
iatScale = ln(failureInterval), iatShape = 1.03, // Hours
sizeScale = ln(2.0), sizeShape = ln(1.0), // Expect 2 machines, with variation of 1
dScale = ln(60.0), dShape = ln(60.0 * 8), // Minutes
@@ -137,7 +139,7 @@ suspend fun createProvisioner(
// Wait for the bare metal nodes to be spawned
delay(10)
- val scheduler = SimpleVirtProvisioningService(allocationPolicy, simulationContext, bareMetalProvisioner)
+ val scheduler = SimpleVirtProvisioningService(simulationContext.domain, simulationContext.clock, bareMetalProvisioner, allocationPolicy)
// Wait for the hypervisors to be spawned
delay(10)
@@ -219,7 +221,8 @@ suspend fun processTrace(reader: TraceReader<VmWorkload>, scheduler: SimpleVirtP
domain.launch {
chan.send(Unit)
val server = scheduler.deploy(
- workload.image.name, workload.image,
+ workload.image.name,
+ workload.image,
Flavor(workload.image.maxCores, workload.image.requiredMemory)
)
// Monitor server events
diff --git a/simulator/opendc/opendc-experiments-sc20/src/main/kotlin/com/atlarge/opendc/experiments/sc20/experiment/Run.kt b/simulator/opendc/opendc-experiments-sc20/src/main/kotlin/com/atlarge/opendc/experiments/sc20/experiment/Run.kt
index 1580e4dd..7b42b095 100644
--- a/simulator/opendc/opendc-experiments-sc20/src/main/kotlin/com/atlarge/opendc/experiments/sc20/experiment/Run.kt
+++ b/simulator/opendc/opendc-experiments-sc20/src/main/kotlin/com/atlarge/opendc/experiments/sc20/experiment/Run.kt
@@ -38,13 +38,13 @@ import com.atlarge.opendc.experiments.sc20.runner.execution.ExperimentExecutionC
import com.atlarge.opendc.experiments.sc20.trace.Sc20ParquetTraceReader
import com.atlarge.opendc.experiments.sc20.trace.Sc20RawParquetTraceReader
import com.atlarge.opendc.format.environment.sc20.Sc20ClusterEnvironmentReader
-import java.io.File
-import java.util.ServiceLoader
-import kotlin.random.Random
import kotlinx.coroutines.cancel
import kotlinx.coroutines.channels.Channel
import kotlinx.coroutines.launch
import mu.KotlinLogging
+import java.io.File
+import java.util.ServiceLoader
+import kotlin.random.Random
/**
* The logger for the experiment scenario.
diff --git a/simulator/opendc/opendc-experiments-sc20/src/main/kotlin/com/atlarge/opendc/experiments/sc20/experiment/monitor/ParquetExperimentMonitor.kt b/simulator/opendc/opendc-experiments-sc20/src/main/kotlin/com/atlarge/opendc/experiments/sc20/experiment/monitor/ParquetExperimentMonitor.kt
index b931fef9..a06317cb 100644
--- a/simulator/opendc/opendc-experiments-sc20/src/main/kotlin/com/atlarge/opendc/experiments/sc20/experiment/monitor/ParquetExperimentMonitor.kt
+++ b/simulator/opendc/opendc-experiments-sc20/src/main/kotlin/com/atlarge/opendc/experiments/sc20/experiment/monitor/ParquetExperimentMonitor.kt
@@ -31,8 +31,8 @@ import com.atlarge.opendc.experiments.sc20.telemetry.HostEvent
import com.atlarge.opendc.experiments.sc20.telemetry.ProvisionerEvent
import com.atlarge.opendc.experiments.sc20.telemetry.parquet.ParquetHostEventWriter
import com.atlarge.opendc.experiments.sc20.telemetry.parquet.ParquetProvisionerEventWriter
-import java.io.File
import mu.KotlinLogging
+import java.io.File
/**
* The logger instance to use.
diff --git a/simulator/opendc/opendc-experiments-sc20/src/main/kotlin/com/atlarge/opendc/experiments/sc20/runner/execution/ThreadPoolExperimentScheduler.kt b/simulator/opendc/opendc-experiments-sc20/src/main/kotlin/com/atlarge/opendc/experiments/sc20/runner/execution/ThreadPoolExperimentScheduler.kt
index a8ee59a8..ddd64560 100644
--- a/simulator/opendc/opendc-experiments-sc20/src/main/kotlin/com/atlarge/opendc/experiments/sc20/runner/execution/ThreadPoolExperimentScheduler.kt
+++ b/simulator/opendc/opendc-experiments-sc20/src/main/kotlin/com/atlarge/opendc/experiments/sc20/runner/execution/ThreadPoolExperimentScheduler.kt
@@ -25,12 +25,12 @@
package com.atlarge.opendc.experiments.sc20.runner.execution
import com.atlarge.opendc.experiments.sc20.runner.ExperimentDescriptor
-import java.util.concurrent.Executors
import kotlinx.coroutines.asCoroutineDispatcher
import kotlinx.coroutines.launch
import kotlinx.coroutines.supervisorScope
import kotlinx.coroutines.sync.Semaphore
import kotlinx.coroutines.withContext
+import java.util.concurrent.Executors
/**
* An [ExperimentScheduler] that runs experiments using a local thread pool.
diff --git a/simulator/opendc/opendc-experiments-sc20/src/main/kotlin/com/atlarge/opendc/experiments/sc20/runner/internal/DefaultExperimentRunner.kt b/simulator/opendc/opendc-experiments-sc20/src/main/kotlin/com/atlarge/opendc/experiments/sc20/runner/internal/DefaultExperimentRunner.kt
index 28a19172..3b80276f 100644
--- a/simulator/opendc/opendc-experiments-sc20/src/main/kotlin/com/atlarge/opendc/experiments/sc20/runner/internal/DefaultExperimentRunner.kt
+++ b/simulator/opendc/opendc-experiments-sc20/src/main/kotlin/com/atlarge/opendc/experiments/sc20/runner/internal/DefaultExperimentRunner.kt
@@ -30,8 +30,8 @@ import com.atlarge.opendc.experiments.sc20.runner.execution.ExperimentExecutionC
import com.atlarge.opendc.experiments.sc20.runner.execution.ExperimentExecutionListener
import com.atlarge.opendc.experiments.sc20.runner.execution.ExperimentExecutionResult
import com.atlarge.opendc.experiments.sc20.runner.execution.ExperimentScheduler
-import java.util.concurrent.ConcurrentHashMap
import kotlinx.coroutines.runBlocking
+import java.util.concurrent.ConcurrentHashMap
/**
* The default implementation of the [ExperimentRunner] interface.
diff --git a/simulator/opendc/opendc-experiments-sc20/src/main/kotlin/com/atlarge/opendc/experiments/sc20/telemetry/parquet/ParquetEventWriter.kt b/simulator/opendc/opendc-experiments-sc20/src/main/kotlin/com/atlarge/opendc/experiments/sc20/telemetry/parquet/ParquetEventWriter.kt
index afa21f93..0a310027 100644
--- a/simulator/opendc/opendc-experiments-sc20/src/main/kotlin/com/atlarge/opendc/experiments/sc20/telemetry/parquet/ParquetEventWriter.kt
+++ b/simulator/opendc/opendc-experiments-sc20/src/main/kotlin/com/atlarge/opendc/experiments/sc20/telemetry/parquet/ParquetEventWriter.kt
@@ -25,17 +25,17 @@
package com.atlarge.opendc.experiments.sc20.telemetry.parquet
import com.atlarge.opendc.experiments.sc20.telemetry.Event
-import java.io.Closeable
-import java.io.File
-import java.util.concurrent.ArrayBlockingQueue
-import java.util.concurrent.BlockingQueue
-import kotlin.concurrent.thread
import mu.KotlinLogging
import org.apache.avro.Schema
import org.apache.avro.generic.GenericData
import org.apache.hadoop.fs.Path
import org.apache.parquet.avro.AvroParquetWriter
import org.apache.parquet.hadoop.metadata.CompressionCodecName
+import java.io.Closeable
+import java.io.File
+import java.util.concurrent.ArrayBlockingQueue
+import java.util.concurrent.BlockingQueue
+import kotlin.concurrent.thread
/**
* The logging instance to use.
diff --git a/simulator/opendc/opendc-experiments-sc20/src/main/kotlin/com/atlarge/opendc/experiments/sc20/telemetry/parquet/ParquetHostEventWriter.kt b/simulator/opendc/opendc-experiments-sc20/src/main/kotlin/com/atlarge/opendc/experiments/sc20/telemetry/parquet/ParquetHostEventWriter.kt
index 9fa4e0fb..3bc09435 100644
--- a/simulator/opendc/opendc-experiments-sc20/src/main/kotlin/com/atlarge/opendc/experiments/sc20/telemetry/parquet/ParquetHostEventWriter.kt
+++ b/simulator/opendc/opendc-experiments-sc20/src/main/kotlin/com/atlarge/opendc/experiments/sc20/telemetry/parquet/ParquetHostEventWriter.kt
@@ -25,10 +25,10 @@
package com.atlarge.opendc.experiments.sc20.telemetry.parquet
import com.atlarge.opendc.experiments.sc20.telemetry.HostEvent
-import java.io.File
import org.apache.avro.Schema
import org.apache.avro.SchemaBuilder
import org.apache.avro.generic.GenericData
+import java.io.File
/**
* A Parquet event writer for [HostEvent]s.
diff --git a/simulator/opendc/opendc-experiments-sc20/src/main/kotlin/com/atlarge/opendc/experiments/sc20/telemetry/parquet/ParquetProvisionerEventWriter.kt b/simulator/opendc/opendc-experiments-sc20/src/main/kotlin/com/atlarge/opendc/experiments/sc20/telemetry/parquet/ParquetProvisionerEventWriter.kt
index 3d28860c..1f3b0472 100644
--- a/simulator/opendc/opendc-experiments-sc20/src/main/kotlin/com/atlarge/opendc/experiments/sc20/telemetry/parquet/ParquetProvisionerEventWriter.kt
+++ b/simulator/opendc/opendc-experiments-sc20/src/main/kotlin/com/atlarge/opendc/experiments/sc20/telemetry/parquet/ParquetProvisionerEventWriter.kt
@@ -25,10 +25,10 @@
package com.atlarge.opendc.experiments.sc20.telemetry.parquet
import com.atlarge.opendc.experiments.sc20.telemetry.ProvisionerEvent
-import java.io.File
import org.apache.avro.Schema
import org.apache.avro.SchemaBuilder
import org.apache.avro.generic.GenericData
+import java.io.File
/**
* A Parquet event writer for [ProvisionerEvent]s.
diff --git a/simulator/opendc/opendc-experiments-sc20/src/main/kotlin/com/atlarge/opendc/experiments/sc20/telemetry/parquet/ParquetRunEventWriter.kt b/simulator/opendc/opendc-experiments-sc20/src/main/kotlin/com/atlarge/opendc/experiments/sc20/telemetry/parquet/ParquetRunEventWriter.kt
index 043e4670..98afe3b8 100644
--- a/simulator/opendc/opendc-experiments-sc20/src/main/kotlin/com/atlarge/opendc/experiments/sc20/telemetry/parquet/ParquetRunEventWriter.kt
+++ b/simulator/opendc/opendc-experiments-sc20/src/main/kotlin/com/atlarge/opendc/experiments/sc20/telemetry/parquet/ParquetRunEventWriter.kt
@@ -25,10 +25,10 @@
package com.atlarge.opendc.experiments.sc20.telemetry.parquet
import com.atlarge.opendc.experiments.sc20.telemetry.RunEvent
-import java.io.File
import org.apache.avro.Schema
import org.apache.avro.SchemaBuilder
import org.apache.avro.generic.GenericData
+import java.io.File
/**
* A Parquet event writer for [RunEvent]s.
diff --git a/simulator/opendc/opendc-experiments-sc20/src/main/kotlin/com/atlarge/opendc/experiments/sc20/trace/Sc20RawParquetTraceReader.kt b/simulator/opendc/opendc-experiments-sc20/src/main/kotlin/com/atlarge/opendc/experiments/sc20/trace/Sc20RawParquetTraceReader.kt
index f9709b9f..f1c1dc25 100644
--- a/simulator/opendc/opendc-experiments-sc20/src/main/kotlin/com/atlarge/opendc/experiments/sc20/trace/Sc20RawParquetTraceReader.kt
+++ b/simulator/opendc/opendc-experiments-sc20/src/main/kotlin/com/atlarge/opendc/experiments/sc20/trace/Sc20RawParquetTraceReader.kt
@@ -30,12 +30,12 @@ import com.atlarge.opendc.compute.core.workload.VmWorkload
import com.atlarge.opendc.core.User
import com.atlarge.opendc.format.trace.TraceEntry
import com.atlarge.opendc.format.trace.TraceReader
-import java.io.File
-import java.util.UUID
import mu.KotlinLogging
import org.apache.avro.generic.GenericData
import org.apache.hadoop.fs.Path
import org.apache.parquet.avro.AvroParquetReader
+import java.io.File
+import java.util.UUID
private val logger = KotlinLogging.logger {}
@@ -113,7 +113,8 @@ class Sc20RawParquetTraceReader(private val path: File) {
val vmFragments = fragments.getValue(id).asSequence()
val totalLoad = vmFragments.sumByDouble { it.usage } * 5 * 60 // avg MHz * duration = MFLOPs
val vmWorkload = VmWorkload(
- uid, id,
+ uid,
+ id,
UnnamedUser,
VmImage(
uid,
diff --git a/simulator/opendc/opendc-experiments-sc20/src/main/kotlin/com/atlarge/opendc/experiments/sc20/trace/Sc20StreamingParquetTraceReader.kt b/simulator/opendc/opendc-experiments-sc20/src/main/kotlin/com/atlarge/opendc/experiments/sc20/trace/Sc20StreamingParquetTraceReader.kt
index 8b7b222f..9fa33c3f 100644
--- a/simulator/opendc/opendc-experiments-sc20/src/main/kotlin/com/atlarge/opendc/experiments/sc20/trace/Sc20StreamingParquetTraceReader.kt
+++ b/simulator/opendc/opendc-experiments-sc20/src/main/kotlin/com/atlarge/opendc/experiments/sc20/trace/Sc20StreamingParquetTraceReader.kt
@@ -32,14 +32,6 @@ import com.atlarge.opendc.compute.core.workload.VmWorkload
import com.atlarge.opendc.core.User
import com.atlarge.opendc.format.trace.TraceEntry
import com.atlarge.opendc.format.trace.TraceReader
-import java.io.File
-import java.io.Serializable
-import java.util.SortedSet
-import java.util.TreeSet
-import java.util.UUID
-import java.util.concurrent.ArrayBlockingQueue
-import kotlin.concurrent.thread
-import kotlin.random.Random
import mu.KotlinLogging
import org.apache.avro.generic.GenericData
import org.apache.hadoop.fs.Path
@@ -49,6 +41,14 @@ import org.apache.parquet.filter2.predicate.FilterApi
import org.apache.parquet.filter2.predicate.Statistics
import org.apache.parquet.filter2.predicate.UserDefinedPredicate
import org.apache.parquet.io.api.Binary
+import java.io.File
+import java.io.Serializable
+import java.util.SortedSet
+import java.util.TreeSet
+import java.util.UUID
+import java.util.concurrent.ArrayBlockingQueue
+import kotlin.concurrent.thread
+import kotlin.random.Random
private val logger = KotlinLogging.logger {}
@@ -82,11 +82,14 @@ class Sc20StreamingParquetTraceReader(
if (selectedVms.isEmpty())
null
else
- FilterCompat.get(FilterApi.userDefined(FilterApi.binaryColumn("id"),
- SelectedVmFilter(
- TreeSet(selectedVms)
+ FilterCompat.get(
+ FilterApi.userDefined(
+ FilterApi.binaryColumn("id"),
+ SelectedVmFilter(
+ TreeSet(selectedVms)
+ )
)
- ))
+ )
/**
* A poisonous fragment.
@@ -235,7 +238,8 @@ class Sc20StreamingParquetTraceReader(
Random(random.nextInt())
)
val vmWorkload = VmWorkload(
- uid, "VM Workload $id",
+ uid,
+ "VM Workload $id",
UnnamedUser,
VmImage(
uid,
diff --git a/simulator/opendc/opendc-experiments-sc20/src/main/kotlin/com/atlarge/opendc/experiments/sc20/trace/Sc20TraceConverter.kt b/simulator/opendc/opendc-experiments-sc20/src/main/kotlin/com/atlarge/opendc/experiments/sc20/trace/Sc20TraceConverter.kt
index 56ddbb6d..a2ce3109 100644
--- a/simulator/opendc/opendc-experiments-sc20/src/main/kotlin/com/atlarge/opendc/experiments/sc20/trace/Sc20TraceConverter.kt
+++ b/simulator/opendc/opendc-experiments-sc20/src/main/kotlin/com/atlarge/opendc/experiments/sc20/trace/Sc20TraceConverter.kt
@@ -37,12 +37,6 @@ import com.github.ajalt.clikt.parameters.options.required
import com.github.ajalt.clikt.parameters.options.split
import com.github.ajalt.clikt.parameters.types.file
import com.github.ajalt.clikt.parameters.types.long
-import java.io.BufferedReader
-import java.io.File
-import java.io.FileReader
-import java.util.Random
-import kotlin.math.max
-import kotlin.math.min
import me.tongfei.progressbar.ProgressBar
import org.apache.avro.Schema
import org.apache.avro.SchemaBuilder
@@ -51,6 +45,12 @@ import org.apache.hadoop.fs.Path
import org.apache.parquet.avro.AvroParquetWriter
import org.apache.parquet.hadoop.ParquetWriter
import org.apache.parquet.hadoop.metadata.CompressionCodecName
+import java.io.BufferedReader
+import java.io.File
+import java.io.FileReader
+import java.util.Random
+import kotlin.math.max
+import kotlin.math.min
/**
* Represents the command for converting traces
diff --git a/simulator/opendc/opendc-experiments-sc20/src/main/kotlin/com/atlarge/opendc/experiments/sc20/trace/WorkloadSampler.kt b/simulator/opendc/opendc-experiments-sc20/src/main/kotlin/com/atlarge/opendc/experiments/sc20/trace/WorkloadSampler.kt
index a46bb3e6..3a2ed4b7 100644
--- a/simulator/opendc/opendc-experiments-sc20/src/main/kotlin/com/atlarge/opendc/experiments/sc20/trace/WorkloadSampler.kt
+++ b/simulator/opendc/opendc-experiments-sc20/src/main/kotlin/com/atlarge/opendc/experiments/sc20/trace/WorkloadSampler.kt
@@ -30,9 +30,9 @@ import com.atlarge.opendc.experiments.sc20.experiment.model.CompositeWorkload
import com.atlarge.opendc.experiments.sc20.experiment.model.SamplingStrategy
import com.atlarge.opendc.experiments.sc20.experiment.model.Workload
import com.atlarge.opendc.format.trace.TraceEntry
+import mu.KotlinLogging
import java.util.*
import kotlin.random.Random
-import mu.KotlinLogging
private val logger = KotlinLogging.logger {}
diff --git a/simulator/opendc/opendc-experiments-sc20/src/test/kotlin/com/atlarge/opendc/experiments/sc20/Sc20IntegrationTest.kt b/simulator/opendc/opendc-experiments-sc20/src/test/kotlin/com/atlarge/opendc/experiments/sc20/Sc20IntegrationTest.kt
index a79e9a5a..5ecf7605 100644
--- a/simulator/opendc/opendc-experiments-sc20/src/test/kotlin/com/atlarge/opendc/experiments/sc20/Sc20IntegrationTest.kt
+++ b/simulator/opendc/opendc-experiments-sc20/src/test/kotlin/com/atlarge/opendc/experiments/sc20/Sc20IntegrationTest.kt
@@ -42,8 +42,6 @@ import com.atlarge.opendc.experiments.sc20.trace.Sc20RawParquetTraceReader
import com.atlarge.opendc.format.environment.EnvironmentReader
import com.atlarge.opendc.format.environment.sc20.Sc20ClusterEnvironmentReader
import com.atlarge.opendc.format.trace.TraceReader
-import java.io.File
-import java.util.ServiceLoader
import kotlinx.coroutines.cancel
import kotlinx.coroutines.channels.Channel
import kotlinx.coroutines.launch
@@ -54,6 +52,8 @@ import org.junit.jupiter.api.Assertions.assertEquals
import org.junit.jupiter.api.BeforeEach
import org.junit.jupiter.api.Test
import org.junit.jupiter.api.assertAll
+import java.io.File
+import java.util.ServiceLoader
/**
* An integration test suite for the SC20 experiments.