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Gael Guennebaud 2015-02-18 15:51:00 +01:00
commit 73a24de424
1 changed files with 16 additions and 0 deletions
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Eigen/src/Core/products/GeneralBlockPanelKernel.h
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@ -83,6 +83,22 @@ inline void manage_caching_sizes(Action action, std::ptrdiff_t* l1, std::ptrdiff
template<typename LhsScalar, typename RhsScalar, int KcFactor> template<typename LhsScalar, typename RhsScalar, int KcFactor>
void computeProductBlockingSizes(Index& k, Index& m, Index& n, Index num_threads = 1) void computeProductBlockingSizes(Index& k, Index& m, Index& n, Index num_threads = 1)
{ {
#ifdef EIGEN_TEST_SPECIFIC_BLOCKING_SIZES
EIGEN_UNUSED_VARIABLE(num_threads);
typedef gebp_traits<LhsScalar,RhsScalar> Traits;
enum {
kr = 16,
mr = Traits::mr,
nr = Traits::nr
};
k = std::min<SizeType>(k, EIGEN_TEST_SPECIFIC_BLOCKING_SIZE_K);
if (k > kr) k -= k % kr;
m = std::min<SizeType>(n, EIGEN_TEST_SPECIFIC_BLOCKING_SIZE_M);
if (m > mr) m -= m % mr;
n = std::min<SizeType>(k, EIGEN_TEST_SPECIFIC_BLOCKING_SIZE_N);
if (n > nr) n -= n % nr;
return;
#endif
// Explanations: // Explanations:
// Let's recall that the product algorithms form mc x kc vertical panels A' on the lhs and // Let's recall that the product algorithms form mc x kc vertical panels A' on the lhs and
// kc x nc blocks B' on the rhs. B' has to fit into L2/L3 cache. Moreover, A' is processed // kc x nc blocks B' on the rhs. B' has to fit into L2/L3 cache. Moreover, A' is processed