From f1c91e065ff79fc9d7b822406a4bed6ae7c3a687 Mon Sep 17 00:00:00 2001
From: Martin Karsten <mkarsten@uwaterloo.ca>
Date: Sat, 16 Jun 2018 11:44:13 -0400
Subject: [PATCH] - add TESTING_WAKE_CLUSTER option
---
src/runtime/BaseProcessor.cc | 4 +++-
src/testoptions.h | 1 +
2 files changed, 4 insertions(+), 1 deletion(-)
diff --git a/src/runtime/BaseProcessor.cc b/src/runtime/BaseProcessor.cc
index 989b08c..cb175c5 100644
--- a/src/runtime/BaseProcessor.cc
+++ b/src/runtime/BaseProcessor.cc
@@ -17,7 +17,7 @@
#include "runtime/Cluster.h"
#include "runtime/RuntimeImpl.h"
-// from background enqueue -> find idle "real" processor to run
+// from background & staging enqueue -> find idle "real" processor to run
void VirtualProcessor::wakeUp() {
BaseProcessor* idleProc = cluster.findIdleProcessorHard();
GENASSERT1(idleProc != this, FmtHex(this));
@@ -26,8 +26,10 @@ void VirtualProcessor::wakeUp() {
// any other enqueue -> wake idle processor, but don't try too hard
void VirtualProcessor::wakeCluster() {
+#if TESTING_WAKE_CLUSTER
BaseProcessor* idleProc = cluster.findIdleProcessorSoft();
if (idleProc && idleProc != this) idleProc->wakeUp();
+#endif
}
BaseProcessor::BaseProcessor(Cluster& c) : VirtualProcessor(c, "Processor"), terminate(false), idleStack(nullptr) {
diff --git a/src/testoptions.h b/src/testoptions.h
index 82b4b40..1b9e5e0 100644
--- a/src/testoptions.h
+++ b/src/testoptions.h
@@ -22,6 +22,7 @@
//#define TESTING_MUTEX_FIFO 1 // use fifo/baton mutex
//#define TESTING_MUTEX_SPIN 1 // spin before block in non-fifo mutex
//#define TESTING_PLACEMENT_RR 1 // RR placement, instead of load-based
+#define TESTING_WAKE_CLUSTER 1 // try waking idle processor on cluster backlog
#define TESTING_WORK_STEALING 1 // enable work stealing (default transient)
#define TESTING_WORK_STEALING_STICKY 5 // sticky work stealing load threshold
--
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