diff options
author | Gael Guennebaud <g.gael@free.fr> | 2010-06-21 12:07:05 +0200 |
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committer | Gael Guennebaud <g.gael@free.fr> | 2010-06-21 12:07:05 +0200 |
commit | 4cd38b333cb34ea5f8cbaf5a1e8471311f0cd1fa (patch) | |
tree | 449eb56a428ac810f4ffcd90624af9a0ed317bb3 /bench/bench_gemm.cpp | |
parent | e54635da11f3c7c3daf2a06fbe64928d60aa900e (diff) |
make bench_gemm print out the queried cache sizes
Diffstat (limited to 'bench/bench_gemm.cpp')
-rw-r--r-- | bench/bench_gemm.cpp | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/bench/bench_gemm.cpp b/bench/bench_gemm.cpp index 7b12736da..ee34e6ddc 100644 --- a/bench/bench_gemm.cpp +++ b/bench/bench_gemm.cpp @@ -57,6 +57,7 @@ void blas_gemm(const MatrixXd& a, const MatrixXd& b, MatrixXd& c) #endif +template<typename M> void gemm(const M& a, const M& b, M& c) { c.noalias() += a * b; @@ -64,6 +65,9 @@ void gemm(const M& a, const M& b, M& c) int main(int argc, char ** argv) { + std::cout << "L1 cache size = " << ei_queryL1CacheSize()/1024 << " KB\n"; + std::cout << "L2/L3 cache size = " << ei_queryTopLevelCacheSize()/1024 << " KB\n"; + int rep = 1; // number of repetitions per try int tries = 5; // number of tries, we keep the best @@ -90,11 +94,6 @@ int main(int argc, char ** argv) if(cache_size>0) setCpuCacheSizes(cache_size,32*cache_size); - std::cout << "Matrix size = " << s << "\n"; - std::ptrdiff_t cm, cn, ck; - getBlockingSizes<Scalar>(ck, cm, cn); - std::cout << "blocking size = " << cm << " x " << ck << "\n"; - int m = s; int n = s; int p = s; @@ -102,6 +101,11 @@ int main(int argc, char ** argv) M b(n,p); b.setRandom(); M c(m,p); c.setOnes(); + std::cout << "Matrix sizes = " << m << "x" << p << " * " << p << "x" << n << "\n"; + std::ptrdiff_t cm, cn, ck; + getBlockingSizes<Scalar>(ck, cm, cn); + std::cout << "blocking size = " << cm << " x " << ck << "\n"; + M r = c; // check the parallel product is correct |