nd4j/nd4j-backends/nd4j-api-parent/nd4j-api/src/main/java/org/nd4j/linalg/workspace/BaseWorkspaceMgr.java
/*
* ******************************************************************************
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* *
* * This program and the accompanying materials are made available under the
* * terms of the Apache License, Version 2.0 which is available at
* * https://www.apache.org/licenses/LICENSE-2.0.
* *
* * See the NOTICE file distributed with this work for additional
* * information regarding copyright ownership.
* * 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.
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* * SPDX-License-Identifier: Apache-2.0
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*/
package org.nd4j.linalg.workspace;
import lombok.NonNull;
import lombok.extern.slf4j.Slf4j;
import org.nd4j.linalg.api.buffer.DataType;
import org.nd4j.linalg.api.memory.MemoryWorkspace;
import org.nd4j.linalg.api.memory.conf.WorkspaceConfiguration;
import org.nd4j.linalg.api.ndarray.INDArray;
import org.nd4j.linalg.api.shape.Shape;
import org.nd4j.linalg.factory.Nd4j;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;
@Slf4j
public abstract class BaseWorkspaceMgr<T extends Enum<T>> implements WorkspaceMgr<T> {
private static final boolean DISABLE_LEVERAGE = false; //Mainly for debugging/optimization purposes
protected final Set<T> scopeOutOfWs;
protected final Map<T, WorkspaceConfiguration> configMap;
protected final Map<T, String> workspaceNames;
protected BaseWorkspaceMgr(Set<T> scopeOutOfWs, Map<T, WorkspaceConfiguration> configMap,
Map<T, String> workspaceNames){
this.scopeOutOfWs = scopeOutOfWs;
this.configMap = configMap;
this.workspaceNames = workspaceNames;
}
protected BaseWorkspaceMgr(){
scopeOutOfWs = new HashSet<>();
configMap = new HashMap<>();
workspaceNames = new HashMap<>();
}
@Override
public void setConfiguration(@NonNull T arrayType, WorkspaceConfiguration configuration) {
configMap.put(arrayType, configuration);
}
@Override
public WorkspaceConfiguration getConfiguration(@NonNull T arrayType) {
return configMap.get(arrayType);
}
@Override
public void setScopedOutFor(@NonNull T arrayType) {
scopeOutOfWs.add(arrayType);
configMap.remove(arrayType);
workspaceNames.remove(arrayType);
}
@Override
public boolean isScopedOut(@NonNull T arrayType) {
return scopeOutOfWs.contains(arrayType);
}
@Override
public boolean hasConfiguration(@NonNull T arrayType){
return scopeOutOfWs.contains(arrayType) || workspaceNames.containsKey(arrayType);
}
@Override
public MemoryWorkspace notifyScopeEntered(@NonNull T arrayType) {
validateConfig(arrayType);
if(isScopedOut(arrayType)) {
return Nd4j.getWorkspaceManager().scopeOutOfWorkspaces();
} else {
MemoryWorkspace ws = Nd4j.getWorkspaceManager().getWorkspaceForCurrentThread(
getConfiguration(arrayType), getWorkspaceName(arrayType));
return ws.notifyScopeEntered();
}
}
@Override
public WorkspacesCloseable notifyScopeEntered(@NonNull T... arrayTypes) {
MemoryWorkspace[] ws = new MemoryWorkspace[arrayTypes.length];
for(int i=0; i<arrayTypes.length; i++ ){
ws[i] = notifyScopeEntered(arrayTypes[i]);
}
return new WorkspacesCloseable(ws);
}
@Override
public MemoryWorkspace notifyScopeBorrowed(@NonNull T arrayType) {
validateConfig(arrayType);
enforceExistsAndActive(arrayType);
if(scopeOutOfWs.contains(arrayType)) {
return Nd4j.getWorkspaceManager().scopeOutOfWorkspaces();
} else {
MemoryWorkspace ws = Nd4j.getWorkspaceManager().getWorkspaceForCurrentThread(
getConfiguration(arrayType), getWorkspaceName(arrayType));
return ws.notifyScopeBorrowed();
}
}
@Override
public void setWorkspaceName(@NonNull T arrayType, @NonNull String name) {
workspaceNames.put(arrayType, name);
}
@Override
public String getWorkspaceName(@NonNull T arrayType) {
return workspaceNames.get(arrayType);
}
@Override
public void setWorkspace(@NonNull T forEnum, @NonNull String wsName, @NonNull WorkspaceConfiguration configuration) {
if(scopeOutOfWs.contains(forEnum)) {
scopeOutOfWs.remove(forEnum);
}
setWorkspaceName(forEnum, wsName);
setConfiguration(forEnum, configuration);
}
@Override
public boolean isWorkspaceOpen(@NonNull T arrayType) {
validateConfig(arrayType);
if(!scopeOutOfWs.contains(arrayType)) {
return Nd4j.getWorkspaceManager().checkIfWorkspaceExistsAndActive(getWorkspaceName(arrayType));
}
return true;
}
@Override
public void assertOpen(T arrayType, String msg) throws ND4JWorkspaceException {
if(!scopeOutOfWs.contains(arrayType) && !isWorkspaceOpen(arrayType)){
throw new ND4JWorkspaceException("Assertion failed: expected workspace for array type " + arrayType
+ " to be open: " + msg);
}
}
@Override
public void assertNotOpen(@NonNull T arrayType, @NonNull String msg) {
if(!scopeOutOfWs.contains(arrayType) && isWorkspaceOpen(arrayType)){
throw new ND4JWorkspaceException("Assertion failed: expected workspace for array type " + arrayType
+ " to not be open: " + msg);
}
}
@Override
public void assertCurrentWorkspace(@NonNull T arrayType, String msg) {
validateConfig(arrayType);
MemoryWorkspace curr = Nd4j.getMemoryManager().getCurrentWorkspace();
if(!scopeOutOfWs.contains(arrayType) && (curr == null || !getWorkspaceName(arrayType).equals(curr.getId()))){
throw new ND4JWorkspaceException("Assertion failed: expected current workspace to be \"" + getWorkspaceName(arrayType)
+ "\" (for array type " + arrayType + ") - actual current workspace is " + (curr == null ? null : curr.getId())
+ (msg == null ? "" : ": " + msg));
};
}
@Override
public INDArray leverageTo(@NonNull T arrayType, @NonNull INDArray array) {
if(array == null || !array.isAttached()){
return array;
}
validateConfig(arrayType);
enforceExistsAndActive(arrayType);
if(!DISABLE_LEVERAGE){
if(scopeOutOfWs.contains(arrayType)){
return array.detach();
}
return array.leverageTo(getWorkspaceName(arrayType), true);
} else {
if(array.isAttached()){
if(!array.data().getParentWorkspace().getId().equals(getWorkspaceName(arrayType))){
throw new IllegalStateException("Array of type " + arrayType + " is leveraged from " + array.data().getParentWorkspace().getId()
+ " to " + getWorkspaceName(arrayType) + " but WorkspaceMgn.leverageTo() is currently disabled");
}
}
return array;
}
}
@Override
public INDArray validateArrayLocation(@NonNull T arrayType, @NonNull INDArray array, boolean migrateIfInvalid, boolean exceptionIfDetached) {
validateConfig(arrayType);
if(scopeOutOfWs.contains(arrayType)){
//Array is supposed to be detached (no workspace)
boolean ok = !array.isAttached();
if(!ok){
if(migrateIfInvalid) {
log.trace("Migrating array of type " + arrayType + " to workspace " + getWorkspaceName(arrayType));
return leverageTo(arrayType, array);
} else {
throw new ND4JWorkspaceException("Array workspace validation failed: Array of type " + arrayType
+ " should be detached (no workspace) but is in workspace: " + array.data().getParentWorkspace().getId());
}
} else {
//Detached array, as expected
return array;
}
}
//At this point: we expect the array to be in a workspace
String wsNameExpected = getWorkspaceName(arrayType);
if(!array.isAttached()){
if(exceptionIfDetached) {
throw new ND4JWorkspaceException("Array workspace validation failed: Array of type " + arrayType +
" should be in workspace \"" + wsNameExpected + "\" but is detached");
} else {
return array;
}
}
String wsNameAct = array.data().getParentWorkspace().getId();
if(!wsNameExpected.equals(wsNameAct)){
if(migrateIfInvalid){
return leverageTo(arrayType, array);
} else {
throw new ND4JWorkspaceException("Array workspace validation failed: Array of type " + arrayType +
" should be in workspace \"" + wsNameExpected + "\" but is in workspace \"" + wsNameAct + "\"");
}
}
//OK - return as-is
return array;
}
@Override
public INDArray create(@NonNull T arrayType, @NonNull DataType dataType, @NonNull long... shape) {
enforceExistsAndActive(arrayType);
return create(arrayType, dataType, shape, Nd4j.order());
}
@Override
public INDArray create(@NonNull T arrayType, @NonNull DataType dataType, @NonNull long[] shape, @NonNull char order) {
enforceExistsAndActive(arrayType);
try(MemoryWorkspace ws = notifyScopeBorrowed(arrayType)){
return Nd4j.create(dataType, shape, order);
}
}
@Override
public INDArray createUninitialized(T arrayType, DataType dataType, long... shape) {
return createUninitialized(arrayType, dataType, shape, Nd4j.order());
}
@Override
public INDArray createUninitialized(@NonNull T arrayType, @NonNull DataType dataType, @NonNull long[] shape, char order) {
enforceExistsAndActive(arrayType);
try(MemoryWorkspace ws = notifyScopeBorrowed(arrayType)) {
return Nd4j.createUninitialized(dataType, shape, order);
}
}
@Override
public INDArray dup(@NonNull T arrayType, @NonNull INDArray toDup, char order) {
enforceExistsAndActive(arrayType);
try(MemoryWorkspace ws = notifyScopeBorrowed(arrayType)){
return toDup.dup(order);
}
}
@Override
public INDArray dup(@NonNull T arrayType, @NonNull INDArray toDup) {
return dup(arrayType, toDup, toDup.ordering());
}
@Override
public INDArray castTo(@NonNull T arrayType, @NonNull DataType dataType, @NonNull INDArray toCast, boolean dupIfCorrectType) {
if(toCast.dataType() == dataType) {
if(!dupIfCorrectType) {
//Check if we can avoid duping... if not in workspace, or already in correct workspace
if(!toCast.isAttached() || toCast.data().getParentWorkspace().getId().equals(workspaceNames.get(arrayType))) {
return toCast;
}
}
return dup(arrayType, toCast);
} else {
try(MemoryWorkspace ws = notifyScopeBorrowed(arrayType)) {
return toCast.castTo(dataType);
}
}
}
private void validateConfig(@NonNull T arrayType) {
if(scopeOutOfWs.contains(arrayType)){
return;
}
if(!configMap.containsKey(arrayType)){
throw new ND4JWorkspaceException("No workspace configuration has been provided for arrayType: " + arrayType);
}
if(!workspaceNames.containsKey(arrayType)){
throw new ND4JWorkspaceException("No workspace name has been provided for arrayType: " + arrayType);
}
}
private void enforceExistsAndActive(@NonNull T arrayType) {
validateConfig(arrayType);
if(scopeOutOfWs.contains(arrayType)){
return;
}
if(!Nd4j.getWorkspaceManager().checkIfWorkspaceExistsAndActive(workspaceNames.get(arrayType))) {
throw new ND4JWorkspaceException("Workspace \"" + workspaceNames.get(arrayType) + "\" for array type " + arrayType
+ " is not open");
}
}
}