Rewrote the FlowEngine (#256)

* Removed unused components. Updated tests.

Improved checkpointing model

Improved model, started with SimPowerSource

implemented FailureModels and Checkpointing

First working version

midway commit

first update

All simulation are now run with a single CPU and single MemoryUnit. multi CPUs are combined into one. This is for performance and explainability.

* fixed merge conflicts

* Updated M3SA paths.

* Fixed small typo

1 files changed, 0 insertions, 116 deletions

diff --git a/opendc-faas/opendc-faas-simulator/src/test/kotlin/org/opendc/faas/simulator/SimFaaSServiceTest.kt b/opendc-faas/opendc-faas-simulator/src/test/kotlin/org/opendc/faas/simulator/SimFaaSServiceTest.kt
deleted file mode 100644
index 2d6d4ac8..00000000
--- a/opendc-faas/opendc-faas-simulator/src/test/kotlin/org/opendc/faas/simulator/SimFaaSServiceTest.kt
+++ /dev/null
@@ -1,116 +0,0 @@
-/*
- * Copyright (c) 2021 AtLarge Research
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in all
- * copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- */
-
-package org.opendc.faas.simulator
-
-import io.mockk.coVerify
-import io.mockk.spyk
-import kotlinx.coroutines.delay
-import kotlinx.coroutines.yield
-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 org.opendc.faas.service.FaaSService
-import org.opendc.faas.service.autoscaler.FunctionTerminationPolicyFixed
-import org.opendc.faas.service.router.RandomRoutingPolicy
-import org.opendc.faas.simulator.delay.ColdStartModel
-import org.opendc.faas.simulator.delay.StochasticDelayInjector
-import org.opendc.faas.simulator.workload.SimFaaSWorkload
-import org.opendc.simulator.compute.model.Cpu
-import org.opendc.simulator.compute.model.MachineModel
-import org.opendc.simulator.compute.model.MemoryUnit
-import org.opendc.simulator.compute.workload.SimWorkload
-import org.opendc.simulator.compute.workload.SimWorkloads
-import org.opendc.simulator.kotlin.runSimulation
-import java.time.Duration
-import java.util.Random
-
-/**
- * A test suite for the [FaaSService] implementation under simulated conditions.
- */
-internal class SimFaaSServiceTest {
-    private lateinit var machineModel: MachineModel
-
-    @BeforeEach
-    fun setUp() {
-        machineModel =
-            MachineModel(
-                Cpu(
-                    0,
-                    2,
-                    1000.0,
-                    "Intel",
-                    "Xeon",
-                    "amd64",
-                ),
-                MemoryUnit("Crucial", "MTA18ASF4G72AZ-3G2B1", 3200.0, 32_000 * 4),
-            )
-    }
-
-    @Test
-    fun testSmoke() =
-        runSimulation {
-            val random = Random(0)
-            val workload =
-                spyk(
-                    object : SimFaaSWorkload, SimWorkload by SimWorkloads.runtime(1000, 1.0) {
-                        override suspend fun invoke() {
-                            delay(random.nextInt(1000).toLong())
-                        }
-                    },
-                )
-
-            val delayInjector = StochasticDelayInjector(ColdStartModel.GOOGLE, random)
-            val deployer = SimFunctionDeployer(dispatcher, machineModel, delayInjector) { workload }
-            val service =
-                FaaSService(
-                    dispatcher,
-                    deployer,
-                    RandomRoutingPolicy(),
-                    FunctionTerminationPolicyFixed(dispatcher, timeout = Duration.ofMillis(10000)),
-                )
-
-            val client = service.newClient()
-
-            val function = client.newFunction("test", 128)
-            function.invoke()
-            delay(2000)
-
-            service.close()
-            deployer.close()
-
-            yield()
-
-            val funcStats = service.getFunctionStats(function)
-
-            // fixme: waitTime is probably wrong, and should be 100
-            assertAll(
-                { coVerify { workload.invoke() } },
-                { assertEquals(1, funcStats.totalInvocations) },
-                { assertEquals(1, funcStats.delayedInvocations) },
-                { assertEquals(0, funcStats.failedInvocations) },
-                { assertEquals(0.0, funcStats.waitTime.mean) },
-                { assertEquals(1285.0, funcStats.activeTime.mean) },
-            )
-        }
-}