From dae9ca13aff00ab1c05f85514f756aea7506d99e Mon Sep 17 00:00:00 2001
From: Martin Quinson <martin.quinson@loria.fr>
Date: Wed, 21 Oct 2015 18:55:49 +0200
Subject: [PATCH] Don't segfault when energy is not turned on

---
 src/surf/cpu_interface.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/surf/cpu_interface.cpp b/src/surf/cpu_interface.cpp
index 03cea6deee..345ad6cd37 100644
--- a/src/surf/cpu_interface.cpp
+++ b/src/surf/cpu_interface.cpp
@@ -230,6 +230,8 @@ void Cpu::setState(e_surf_resource_state_t state)
 
 void Cpu::setVirtual(Cpu *physCpu)
 {
+  if (!surf_energy)
+	  return;
   this->physCpu = physCpu;
   XBT_DEBUG("The CPU is virtual so associate the cpu energy to the physical cpu instead of creating a new one");
   std::map<Cpu*, CpuEnergy*>::iterator cpu_energy_it = surf_energy->find(physCpu);
-- 
2.20.1