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Pad PerThread when we emulate thread_local to prevent false sharing.

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Rasmus Munk Larsen
2018-08-23 12:54:33 -07:00
parent 6cedc5a9b3
commit 668690978f
1 changed files with 4 additions and 0 deletions
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4
unsupported/Eigen/CXX11/src/ThreadPool/NonBlockingThreadPool.h
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@@ -153,6 +153,10 @@ class ThreadPoolTempl : public Eigen::ThreadPoolInterface {
ThreadPoolTempl* pool; // Parent pool, or null for normal threads. ThreadPoolTempl* pool; // Parent pool, or null for normal threads.
uint64_t rand; // Random generator state. uint64_t rand; // Random generator state.
int thread_id; // Worker thread index in pool. int thread_id; // Worker thread index in pool.
#ifndef EIGEN_THREAD_LOCAL
// Prevent false sharing.
char pad_[128];
#endif
}; };
Environment env_; Environment env_;