Merge branch 'IntelProfiler' into 'master'

Introduced new Algorithm to help profiling Gaudi with Intel tools

See merge request !329

GaudiProfiling/CMakeLists.txt

@@ -73,9 +73,12 @@ endif()
 # Intel VTune profiler
 #-----------------------------------
 if(INTELAMPLIFIER_FOUND)
-  gaudi_add_module(IntelProfiler src/component/intel/*.cpp
+  gaudi_add_module(IntelProfiler src/component/intel/IntelProfilerAuditor.cpp
                    LINK_LIBRARIES ${INTELAMPLIFIER_LIBITTNOTIFY} GaudiKernel
                    INCLUDE_DIRS ${INTELAMPLIFIER_INCLUDE_DIRS})
+  gaudi_add_module(GaudiIntelProfiling src/component/intel/IntelProfile.cpp
+                   LINK_LIBRARIES ${INTELAMPLIFIER_LIBITTNOTIFY} GaudiKernel GaudiAlgLib
+                   INCLUDE_DIRS ${INTELAMPLIFIER_INCLUDE_DIRS})
 else()
   message(WARNING "VTune libraries not found, the module IntelProfiler is disabled")
 endif()

GaudiProfiling/src/component/intel/IntelProfile.cpp

+// Include files
+#include <iostream>
+
+// local
+#include "IntelProfile.h"
+
+//-----------------------------------------------------------------------------
+// Implementation file for class : IntelProfile
+//-----------------------------------------------------------------------------
+
+// Declaration of the Algorithm Factory
+DECLARE_ALGORITHM_FACTORY( IntelProfile )
+
+//=============================================================================
+// Main execution
+//=============================================================================
+StatusCode IntelProfile::execute() {
+
+  // Increase event number
+  m_eventNumber += 1;
+
+  if (m_eventNumber == m_nStartFromEvent) {
+    warning() << "Starting Intel profile at event "
+              <<  m_eventNumber << endmsg;
+    __itt_resume();
+  }
+
+  if (m_eventNumber ==  m_nStopAtEvent) {
+    warning() << "Stopping Intel profile at event "
+              <<  m_eventNumber << endmsg;
+    __itt_pause();
+  }
+
+  return StatusCode::SUCCESS;
+}

GaudiProfiling/src/component/intel/IntelProfile.h

+#ifndef INTEL_INTELPROFILE_H
+#define INTEL_INTELPROFILE_H 1
+
+// Include files
+// from Gaudi
+#include "GaudiAlg/GaudiAlgorithm.h"
+#include "ittnotify.h"
+
+/** Algorithm to enable/disable the profiling by Intel at given events.
+ *  Works with vtune and intel advisor. Not working with inspector.
+ *
+ *  @author Ben Couturier Sebastien Ponce
+ */
+class IntelProfile : public GaudiAlgorithm
+{
+public:
+  using GaudiAlgorithm::GaudiAlgorithm;
+  StatusCode execute() override;    ///< Algorithm execution
+
+private:
+  Gaudi::Property<int> m_nStartFromEvent{this, "StartFromEventN", 1, "After what event we start profiling."};
+  Gaudi::Property<int> m_nStopAtEvent{this, "StopAtEventN", 0, "After what event we stop profiling. If 0 than we also profile finalization stage. Default = 0."};
+
+  int m_eventNumber = 0;     // Current event number
+};
+#endif // INTEL_INTELPROFILE_H

cmake/GaudiBuildFlags.cmake

@@ -277,13 +277,13 @@ if(NOT GAUDI_FLAGS_SET)
 
   #--- Link shared flags -------------------------------------------------------
   if (CMAKE_SYSTEM_NAME MATCHES Linux)
-    set(CMAKE_SHARED_LINKER_FLAGS "-Wl,--as-needed -Wl,--no-undefined  -Wl,-z,max-page-size=0x1000"
+    set(CMAKE_SHARED_LINKER_FLAGS "-Wl,--no-as-needed -Wl,--no-undefined  -Wl,-z,max-page-size=0x1000"
         CACHE STRING "Flags used by the linker during the creation of dll's."
         FORCE)
-    set(CMAKE_MODULE_LINKER_FLAGS "-Wl,--as-needed -Wl,--no-undefined  -Wl,-z,max-page-size=0x1000"
+    set(CMAKE_MODULE_LINKER_FLAGS "-Wl,--no-as-needed -Wl,--no-undefined  -Wl,-z,max-page-size=0x1000"
         CACHE STRING "Flags used by the linker during the creation of modules."
         FORCE)
-    set(CMAKE_EXE_LINKER_FLAGS "-Wl,--as-needed -Wl,--no-undefined  -Wl,-z,max-page-size=0x1000"
+    set(CMAKE_EXE_LINKER_FLAGS "-Wl,--no-as-needed -Wl,--no-undefined  -Wl,-z,max-page-size=0x1000"
         CACHE STRING "Flags used by the linker during the creation of executables."
         FORCE)
   endif()