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Use signed integers more consistently to encode the number of threads to use to evaluate a tensor expression.

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This commit is contained in:
Benoit Steiner
2016-06-09 08:25:22 -07:00
parent 8f92c26319
commit 14a112ee15
2 changed files with 11 additions and 11 deletions
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10
unsupported/Eigen/CXX11/src/Tensor/TensorDeviceThreadPool.h
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@@ -106,7 +106,7 @@ static EIGEN_STRONG_INLINE void wait_until_ready(SyncType* n) {
// Build a thread pool device on top the an existing pool of threads.
struct ThreadPoolDevice {
// The ownership of the thread pool remains with the caller.
ThreadPoolDevice(ThreadPoolInterface* pool, size_t num_cores) : pool_(pool), num_threads_(num_cores) { }
ThreadPoolDevice(ThreadPoolInterface* pool, int num_cores) : pool_(pool), num_threads_(num_cores) { }
EIGEN_STRONG_INLINE void* allocate(size_t num_bytes) const {
return internal::aligned_malloc(num_bytes);
@@ -130,7 +130,7 @@ struct ThreadPoolDevice {
::memset(buffer, c, n);
}
EIGEN_STRONG_INLINE size_t numThreads() const {
EIGEN_STRONG_INLINE int numThreads() const {
return num_threads_;
}
@@ -182,7 +182,7 @@ struct ThreadPoolDevice {
std::function<void(Index, Index)> f) const {
typedef TensorCostModel<ThreadPoolDevice> CostModel;
if (n <= 1 || numThreads() == 1 ||
CostModel::numThreads(n, cost, numThreads()) == 1) {
CostModel::numThreads(n, cost, static_cast<int>(numThreads())) == 1) {
f(0, n);
return;
}
@@ -242,7 +242,7 @@ struct ThreadPoolDevice {
// Recursively divide size into halves until we reach block_size.
// Division code rounds mid to block_size, so we are guaranteed to get
// block_count leaves that do actual computations.
Barrier barrier(block_count);
Barrier barrier(static_cast<unsigned int>(block_count));
std::function<void(Index, Index)> handleRange;
handleRange = [=, &handleRange, &barrier, &f](Index first, Index last) {
if (last - first <= block_size) {
@@ -268,7 +268,7 @@ struct ThreadPoolDevice {
private:
ThreadPoolInterface* pool_;
size_t num_threads_;
int num_threads_;
};