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[Unity] Support clear global memory allocators #15172

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Merged
tqchen merged 1 commit into from
Jun 29, 2023
Merged

[Unity] Support clear global memory allocators #15172

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3 changes: 3 additions & 0 deletions include/tvm/runtime/relax_vm/memory_manager.h
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Original file line number Diff line number Diff line change
Expand Up @@ -97,6 +97,9 @@ class MemoryManager {
*/
static Allocator* GetAllocator(Device dev);

/*! \brief Clear the allocators. */
static void Clear();

private:
MemoryManager() {}

Expand Down
9 changes: 9 additions & 0 deletions src/runtime/relax_vm/memory_manager.cc
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Expand Up @@ -21,6 +21,7 @@
* \file tvm/runtime/relax_vm/memory_manager.cc
* \brief Allocate and manage memory for the Relay VM.
*/
#include <tvm/runtime/registry.h>
#include <tvm/runtime/relax_vm/memory_manager.h>

#include <memory>
Expand Down Expand Up @@ -169,6 +170,12 @@ Allocator* MemoryManager::GetAllocator(Device dev) {
return it->second.get();
}

void MemoryManager::Clear() {
MemoryManager* m = MemoryManager::Global();
std::lock_guard<std::mutex> lock(m->mutex_);
m->allocators_.clear();
}

runtime::NDArray Allocator::Empty(ShapeTuple shape, DLDataType dtype, DLDevice dev) {
VerifyDataType(dtype);
runtime::NDArray::Container* container =
Expand All @@ -183,6 +190,8 @@ runtime::NDArray Allocator::Empty(ShapeTuple shape, DLDataType dtype, DLDevice d
return runtime::NDArray(runtime::GetObjectPtr<Object>(container));
}

TVM_REGISTER_GLOBAL("vm.builtin.memory_manager.clear").set_body_typed(MemoryManager::Clear);

} // namespace relax_vm
} // namespace runtime
} // namespace tvm