未验证 提交 5c073a4d 编写于 作者: Y Yan Chunwei 提交者: GitHub

fix transfer cache thread_local bug (#14581)

上级 87332bb1
......@@ -17,16 +17,28 @@
namespace paddle {
namespace framework {
// Holds all the transfer scope across the process.
std::unordered_map<size_t, Scope*>& global_transfer_data_cache() {
thread_local auto* x = new std::unordered_map<size_t, Scope*>;
typedef std::unordered_map<size_t, Scope*> map_t;
thread_local std::unique_ptr<map_t> x(new map_t);
return *x;
}
// Holds all the transfer scope for this thread.
std::unordered_set<Scope*>& global_transfer_scope_cache() {
thread_local auto* x = new std::unordered_set<Scope*>;
typedef std::unordered_set<Scope*> set_t;
thread_local std::unique_ptr<set_t> x(new set_t);
return *x;
}
// Try to create a transfer scope. If one cached scope has match the
// requirement, just return that one.
// Inputs:
// @type0: the source kernel type.
// @type1: the target kernel type.
// @scope: the execution scope of this op.
// Returns: A scope used to hold the transfer data across the different kernel
// type.
Scope* TryCreateTransferScope(OpKernelType type0, OpKernelType type1,
const Scope* scope) {
Scope* new_scope{nullptr};
......@@ -46,27 +58,5 @@ Scope* TryCreateTransferScope(OpKernelType type0, OpKernelType type1,
return new_scope;
}
void RemoveKidsFromTransferScopeCache(Scope* scope) {
auto it = global_transfer_scope_cache().find(scope);
if (it != global_transfer_scope_cache().end()) {
global_transfer_scope_cache().erase(it);
}
for (auto* s : scope->kids()) {
auto it = global_transfer_scope_cache().find(s);
if (it != global_transfer_scope_cache().end()) {
global_transfer_scope_cache().erase(it);
}
}
// remove global transfer data cache
auto& cache = global_transfer_data_cache();
for (auto it = cache.begin(); it != cache.end();) {
if (it->second == scope)
it = cache.erase(it);
else
it++;
}
}
} // namespace framework
} // namespace paddle
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