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Diffstat (limited to 'src/graph/backends/CL/CLDeviceBackend.cpp')
-rw-r--r--src/graph/backends/CL/CLDeviceBackend.cpp16
1 files changed, 13 insertions, 3 deletions
diff --git a/src/graph/backends/CL/CLDeviceBackend.cpp b/src/graph/backends/CL/CLDeviceBackend.cpp
index 6717f9f8e3..f35daf4ae5 100644
--- a/src/graph/backends/CL/CLDeviceBackend.cpp
+++ b/src/graph/backends/CL/CLDeviceBackend.cpp
@@ -63,7 +63,7 @@ bool file_exists(const std::string &filename)
static detail::BackendRegistrar<CLDeviceBackend> CLDeviceBackend_registrar(Target::CL);
CLDeviceBackend::CLDeviceBackend()
- : _initialized(false), _tuner(), _allocator(nullptr), _tuner_file()
+ : _context_count(0), _tuner(), _allocator(nullptr), _tuner_file()
{
}
@@ -90,13 +90,23 @@ void CLDeviceBackend::initialize_backend()
_allocator = support::cpp14::make_unique<CLBufferAllocator>();
}
+void CLDeviceBackend::release_backend_context(GraphContext &ctx)
+{
+ ARM_COMPUTE_UNUSED(ctx);
+ _context_count--;
+ if(_context_count == 0) // No more context using the backend: free resources
+ {
+ _allocator = nullptr;
+ }
+}
+
void CLDeviceBackend::setup_backend_context(GraphContext &ctx)
{
// Force backend initialization
- if(!_initialized)
+ _context_count++;
+ if(_context_count == 1)
{
initialize_backend();
- _initialized = true;
}
// Setup tuner