chore: import upstream snapshot with attribution

2026-07-13 12:47:05 +08:00
commit 4f3b7da785
7394 changed files with 2005594 additions and 0 deletions
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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.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ ******************************************************************************/
+
+//
+// This class implements Workspace functionality in c++
+//
+//
+// @author raver119@gmail.com
+//
+
+#ifndef LIBND4J_WORKSPACE_H
+#define LIBND4J_WORKSPACE_H
+
+#include <memory/ExternalWorkspace.h>
+#include <memory/MemoryType.h>
+#include <system/common.h>
+#include <types/float16.h>
+
+#include <atomic>
+#include <mutex>
+#include <vector>
+
+namespace sd {
+namespace memory {
+
+class SD_LIB_EXPORT Workspace {
+ protected:
+  char* _ptrHost = nullptr;
+  char* _ptrDevice = nullptr;
+
+  bool _allocatedHost = false;
+  bool _allocatedDevice = false;
+
+  std::atomic<sd::LongType> _offset;
+  std::atomic<sd::LongType> _offsetSecondary;
+
+  sd::LongType _initialSize = 0L;
+  sd::LongType _initialSizeSecondary = 0L;
+
+  sd::LongType _currentSize = 0L;
+  sd::LongType _currentSizeSecondary = 0L;
+
+  std::mutex _mutexAllocation;
+  std::mutex _mutexSpills;
+
+  bool _externalized = false;
+
+  std::vector<void*> _spills;
+  std::vector<void*> _spillsSecondary;
+
+  std::atomic<sd::LongType> _spillsSize;
+  std::atomic<sd::LongType> _cycleAllocations;
+
+  std::atomic<sd::LongType> _spillsSizeSecondary;
+  std::atomic<sd::LongType> _cycleAllocationsSecondary;
+
+  void init(sd::LongType primaryBytes, sd::LongType secondaryBytes = 0L);
+  void freeSpills();
+
+ public:
+  explicit Workspace(ExternalWorkspace* external);
+  Workspace(sd::LongType initialSize = 0L, sd::LongType secondaryBytes = 0L);
+  ~Workspace();
+
+  sd::LongType getAllocatedSize();
+  sd::LongType getCurrentSize();
+  sd::LongType getCurrentOffset();
+  sd::LongType getSpilledSize();
+  sd::LongType getUsedSize();
+
+  sd::LongType getAllocatedSecondarySize();
+  sd::LongType getCurrentSecondarySize();
+  sd::LongType getCurrentSecondaryOffset();
+  sd::LongType getSpilledSecondarySize();
+  sd::LongType getUsedSecondarySize();
+
+  void expandBy(sd::LongType primaryBytes, sd::LongType secondaryBytes = 0L);
+  void expandTo(sd::LongType primaryBytes, sd::LongType secondaryBytes = 0L);
+
+  //            bool resizeSupported();
+
+  void* allocateBytes(sd::LongType numBytes);
+  void* allocateBytes(MemoryType type, sd::LongType numBytes);
+
+  void scopeIn();
+  void scopeOut();
+
+  /*
+   * This method creates NEW workspace of the same memory size and returns pointer to it
+   */
+  Workspace* clone();
+};
+}  // namespace memory
+}  // namespace sd
+
+#endif  // LIBND4J_WORKSPACE_H