diff options
Diffstat (limited to 'unsupported/Eigen/CXX11')
-rw-r--r-- | unsupported/Eigen/CXX11/src/ThreadPool/EventCount.h | 7 | ||||
-rw-r--r-- | unsupported/Eigen/CXX11/src/util/MaxSizeVector.h | 9 |
2 files changed, 8 insertions, 8 deletions
diff --git a/unsupported/Eigen/CXX11/src/ThreadPool/EventCount.h b/unsupported/Eigen/CXX11/src/ThreadPool/EventCount.h index 2cac2d0f1..22c952ae1 100644 --- a/unsupported/Eigen/CXX11/src/ThreadPool/EventCount.h +++ b/unsupported/Eigen/CXX11/src/ThreadPool/EventCount.h @@ -169,7 +169,9 @@ class EventCount { class Waiter { friend class EventCount; - std::atomic<Waiter*> next; + // Align to 128 byte boundary to prevent false sharing with other Waiter + // objects in the same vector. + EIGEN_ALIGN_TO_BOUNDARY(128) std::atomic<Waiter*> next; std::mutex mu; std::condition_variable cv; uint64_t epoch; @@ -179,9 +181,6 @@ class EventCount { kWaiting, kSignaled, }; - // Pad past 128 byte boundary to prevent false sharing with other Waiter - // objects in the same vector. - char pad_[128]; }; private: diff --git a/unsupported/Eigen/CXX11/src/util/MaxSizeVector.h b/unsupported/Eigen/CXX11/src/util/MaxSizeVector.h index bc5b3632c..277ab149a 100644 --- a/unsupported/Eigen/CXX11/src/util/MaxSizeVector.h +++ b/unsupported/Eigen/CXX11/src/util/MaxSizeVector.h @@ -29,12 +29,13 @@ namespace Eigen { */ template <typename T> class MaxSizeVector { + static const size_t alignment = EIGEN_PLAIN_ENUM_MAX(EIGEN_ALIGNOF(T), sizeof(void*)); public: // Construct a new MaxSizeVector, reserve n elements. EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE explicit MaxSizeVector(size_t n) : reserve_(n), size_(0), - data_(static_cast<T*>(internal::aligned_malloc(n * sizeof(T)))) { + data_(static_cast<T*>(internal::handmade_aligned_malloc(n * sizeof(T), alignment))) { } // Construct a new MaxSizeVector, reserve and resize to n. @@ -42,7 +43,7 @@ class MaxSizeVector { EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE MaxSizeVector(size_t n, const T& init) : reserve_(n), size_(n), - data_(static_cast<T*>(internal::aligned_malloc(n * sizeof(T)))) { + data_(static_cast<T*>(internal::handmade_aligned_malloc(n * sizeof(T), alignment))) { size_t i = 0; EIGEN_TRY { @@ -52,7 +53,7 @@ class MaxSizeVector { { // Construction failed, destruct in reverse order: for(; (i+1) > 0; --i) { data_[i-1].~T(); } - internal::aligned_free(data_); + internal::handmade_aligned_free(data_); EIGEN_THROW; } } @@ -62,7 +63,7 @@ class MaxSizeVector { for (size_t i = size_; i > 0; --i) { data_[i-1].~T(); } - internal::aligned_free(data_); + internal::handmade_aligned_free(data_); } void resize(size_t n) { |