From 98686ab86ce062e1dbbf4ab15ef680387db35416 Mon Sep 17 00:00:00 2001 From: Gael Guennebaud Date: Mon, 21 Jun 2010 23:44:20 +0200 Subject: fix in case we don't know how to query the L1/L2 cache sizes --- bench/bench_gemm.cpp | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) (limited to 'bench/bench_gemm.cpp') diff --git a/bench/bench_gemm.cpp b/bench/bench_gemm.cpp index ca1e05c8d..e5b991130 100644 --- a/bench/bench_gemm.cpp +++ b/bench/bench_gemm.cpp @@ -65,8 +65,10 @@ 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"; + std::ptrdiff_t l1 = ei_queryL1CacheSize(); + std::ptrdiff_t l2 = ei_queryTopLevelCacheSize(); + std::cout << "L1 cache size = " << (l1>0 ? l1/1024 : -1) << " KB\n"; + std::cout << "L2/L3 cache size = " << (l2>0 ? l2/1024 : -1) << " KB\n"; setCpuCacheSizes(ei_queryL1CacheSize()/1,ei_queryTopLevelCacheSize()/2); -- cgit v1.2.3