diff --git a/src/bang/bang_runtime.cc b/src/bang/bang_runtime.cc
index b0dc30ca..989d17da 100644
--- a/src/bang/bang_runtime.cc
+++ b/src/bang/bang_runtime.cc
@@ -15,17 +15,13 @@ void BangRuntimeObj::runWithoutSync(const Graph &graph, bool tune = false,
         // HACK: set correct data type
         auto kernelAttrs =
             KernelAttrs{device, op->getOpType(), DataType::Float32};
-        std::cout << 1 << std::endl;
         Kernel *kernel = kernelRegistry.getKernel(kernelAttrs);
-        std::cout << 2 << std::endl;
         auto perfKey = PerfEngine::Key{kernelAttrs, op->getOpPerfKey()};
-        std::cout << 3 << std::endl;
         auto perfData = perfEngine.getPerfData(perfKey);
         if (!perfData && !tune) {
             kernel->compute(op, this);
             continue;
         }
-        std::cout << 4 << std::endl;
 
         PerfRecord record;
         if (!perfData) {