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Merge pull request #384 from jjfumero/fix/memory/fill
Autoclosable Execution Plans for automatic memory management (free resources)
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36 changes: 36 additions & 0 deletions
36
.../src/main/java/uk/ac/manchester/tornado/api/exceptions/TornadoExecutionPlanException.java
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| /* | ||
| * Copyright (c) 2024, APT Group, Department of Computer Science, | ||
| * The University of Manchester. | ||
| * | ||
| * Licensed 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 uk.ac.manchester.tornado.api.exceptions; | ||
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| public class TornadoExecutionPlanException extends Exception { | ||
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| private String reason; | ||
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| public TornadoExecutionPlanException() { | ||
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| } | ||
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| public TornadoExecutionPlanException(String reason) { | ||
| this.reason = reason; | ||
| } | ||
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| public String getReason() { | ||
| return reason; | ||
| } | ||
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| } |
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61 changes: 61 additions & 0 deletions
61
tornado-examples/src/main/java/uk/ac/manchester/tornado/examples/memory/TestMemory.java
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| package uk.ac.manchester.tornado.examples.memory; | ||
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| import uk.ac.manchester.tornado.api.ImmutableTaskGraph; | ||
| import uk.ac.manchester.tornado.api.TaskGraph; | ||
| import uk.ac.manchester.tornado.api.TornadoExecutionPlan; | ||
| import uk.ac.manchester.tornado.api.annotations.Parallel; | ||
| import uk.ac.manchester.tornado.api.enums.DataTransferMode; | ||
| import uk.ac.manchester.tornado.api.exceptions.TornadoExecutionPlanException; | ||
| import uk.ac.manchester.tornado.api.types.arrays.FloatArray; | ||
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| /** | ||
| * Full example to show to matrix addition with non vector types | ||
| * <p> | ||
| * How to run? | ||
| * </p> | ||
| * <code> | ||
| * tornado --jvm="-Dtornado.device.memory=4GB" -m tornado.examples/uk.ac.manchester.tornado.examples.memory.TestMemory | ||
| * </code> | ||
| * | ||
| */ | ||
| public class TestMemory { | ||
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| public static void moveData(FloatArray inputArray, FloatArray outputArray) { | ||
| for (@Parallel int i = 0; i < inputArray.getSize(); i++) { | ||
| outputArray.set(i, inputArray.get(i)); | ||
| } | ||
| } | ||
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| public static void stressDataAllocationTest(int dataSizeFactor) throws TornadoExecutionPlanException { | ||
| System.out.println("Allocating size: " + (dataSizeFactor * 4) + " (bytes)"); | ||
| FloatArray inputArray = new FloatArray(dataSizeFactor); | ||
| FloatArray outputArray = new FloatArray(dataSizeFactor); | ||
| inputArray.init(0.1f); | ||
| TaskGraph taskGraph = new TaskGraph("memory" + dataSizeFactor) // | ||
| .transferToDevice(DataTransferMode.EVERY_EXECUTION, inputArray) // | ||
| .task("stress", TestMemory::moveData, inputArray, outputArray) // | ||
| .transferToHost(DataTransferMode.EVERY_EXECUTION, outputArray); | ||
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| ImmutableTaskGraph immutableTaskGraph = taskGraph.snapshot(); | ||
| try (TornadoExecutionPlan executionPlan = new TornadoExecutionPlan(immutableTaskGraph)) { | ||
| executionPlan.execute(); | ||
| } | ||
| } | ||
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| /** | ||
| * Depending on the device, this test is expected to fail when using the | ||
| * OpenCL backend. | ||
| */ | ||
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| public static void main(String[] args) { | ||
| // Starting in ~1.5GB and move up to ~2GB | ||
| for (int i = 400; i < 500; i += 10) { | ||
| int size = 1024 * 1024 * i; | ||
| try { | ||
| stressDataAllocationTest(size); | ||
| } catch (TornadoExecutionPlanException e) { | ||
| e.printStackTrace(); | ||
| } | ||
| } | ||
| } | ||
| } |
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