Fix athenaHLT running: make initialization happen after fork

Fix athenaHLT running: make initialization happen after fork

Trigger/TrigAccel/TrigGpuTest/test/test_trigGPU_P1_ID_calo_v1PhysP1_grid.py

+#!/usr/bin/env python
+# Copyright (C) 2002-2024 CERN for the benefit of the ATLAS collaboration
+
+# art-description: Trigger athenaHLT test of the PhysicsP1_pp_run3_v1 menu
+# art-type: grid
+# art-include: main/Athena
+# art-include: 24.0/Athena
+# art-athena-mt: 4
+# art-architecture: '#&nvidia'
+# art-output: *.txt
+# art-output: *.log
+# art-output: log.*
+# art-output: *.out
+# art-output: *.err
+# art-output: *.log.tar.gz
+# art-output: *.new
+# art-output: *.json
+# art-output: *.root
+# art-output: *.pmon.gz
+# art-output: *perfmon*
+# art-output: prmon*
+# art-output: *.check*
+
+from TrigValTools.TrigValSteering import Test, ExecStep, CheckSteps
+
+ex = ExecStep.ExecStep()
+ex.type = 'athenaHLT'
+ex.job_options = 'TriggerJobOpts.runHLT'
+ex.input = 'data'
+ex.threads = 4
+ex.concurrent_events = 1
+ex.flags = ['Trigger.InDetTracking.doGPU=True', 'CaloRecGPU.GlobalFlags.UseCaloRecGPU=True', 'Trigger.triggerMenuSetup="PhysicsP1_pp_run3_v1_HLTReprocessing_prescale"',
+            'Trigger.doLVL1=True']
+
+test = Test.Test()
+test.art_type = 'grid'
+test.exec_steps = [ex]
+test.check_steps = CheckSteps.default_check_steps(test)
+
+import sys
+sys.exit(test.run())

Trigger/TrigAccel/TrigGpuTest/test/test_trigGPU_P1_ID_v1PhysP1_grid.py

+#!/usr/bin/env python
+# Copyright (C) 2002-2024 CERN for the benefit of the ATLAS collaboration
+
+# art-description: Trigger athenaHLT test of the PhysicsP1_pp_run3_v1 menu
+# art-type: grid
+# art-include: main/Athena
+# art-include: 24.0/Athena
+# art-athena-mt: 4
+# art-architecture: '#&nvidia'
+# art-output: *.txt
+# art-output: *.log
+# art-output: log.*
+# art-output: *.out
+# art-output: *.err
+# art-output: *.log.tar.gz
+# art-output: *.new
+# art-output: *.json
+# art-output: *.root
+# art-output: *.pmon.gz
+# art-output: *perfmon*
+# art-output: prmon*
+# art-output: *.check*
+
+from TrigValTools.TrigValSteering import Test, ExecStep, CheckSteps
+
+ex = ExecStep.ExecStep()
+ex.type = 'athenaHLT'
+ex.job_options = 'TriggerJobOpts.runHLT'
+ex.input = 'data'
+ex.threads = 4
+ex.concurrent_events = 1
+ex.flags = ['Trigger.InDetTracking.doGPU=True','Trigger.triggerMenuSetup="PhysicsP1_pp_run3_v1_HLTReprocessing_prescale"',
+            'Trigger.doLVL1=True']
+
+test = Test.Test()
+test.art_type = 'grid'
+test.exec_steps = [ex]
+test.check_steps = CheckSteps.default_check_steps(test)
+
+import sys
+sys.exit(test.run())

Trigger/TrigAccel/TrigInDetAccel/TrigInDetAccelerationService/CMakeLists.txt

@@ -17,8 +17,8 @@ atlas_add_library( TrigInDetAccelerationServiceLib
                    src/*.cxx
                    PUBLIC_HEADERS TrigInDetAccelerationService
 		   INCLUDE_DIRS ${TBB_INCLUDE_DIRS}
-                   LINK_LIBRARIES AthenaKernel GaudiKernel AthenaBaseComps StoreGateLib InDetIdentifier PixelReadoutGeometryLib SCT_ReadoutGeometry TrigAccelEvent ${TBB_LIBRARIES} rt dl)
+                   LINK_LIBRARIES AthenaKernel GaudiKernel AthenaBaseComps AthenaInterprocess StoreGateLib InDetIdentifier PixelReadoutGeometryLib SCT_ReadoutGeometry TrigAccelEvent ${TBB_LIBRARIES} rt dl)
 
 atlas_add_component( TrigInDetAccelerationService
                      src/components/*.cxx
-                     LINK_LIBRARIES TrigInDetAccelerationServiceLib AthenaKernel GaudiKernel AthenaBaseComps StoreGateLib TrigAccelEvent ${TBB_LIBRARIES} rt dl)
+                     LINK_LIBRARIES TrigInDetAccelerationServiceLib AthenaKernel GaudiKernel AthenaInterprocess AthenaBaseComps StoreGateLib TrigAccelEvent ${TBB_LIBRARIES} rt dl)

Trigger/TrigAccel/TrigInDetAccel/TrigInDetAccelerationService/src/TrigInDetAccelerationSvc.cxx

@@ -15,6 +15,8 @@
 #include "TrigAccelEvent/TrigInDetAccelEDM.h"
 #include "TrigAccelEvent/TrigITkAccelEDM.h"
 #include "CxxUtils/checker_macros.h"
+#include "AthenaInterprocess/Incidents.h"
+#include "GaudiKernel/ConcurrencyFlags.h"
 
 #include <dlfcn.h>
 
@@ -102,13 +104,20 @@ StatusCode TrigInDetAccelerationSvc::initialize() {
   /*    
    * Ask to be informed at the beginning of a new run so that we    
    * can collect geometry, conditions, etc. and copy them to on-GPU data structures   
+   * For athenaHLT this should be UpdateAfterFork
    */   
 
-  IIncidentSvc* incsvc;   
-  StatusCode sc = service("IncidentSvc", incsvc);   
-  int priority = 100;   
-  if( sc.isSuccess() ) {     
-    incsvc->addListener( this, "BeginRun", priority);   
+  IIncidentSvc* incsvc;
+  StatusCode sc = service("IncidentSvc", incsvc);
+  int priority = 100;
+  if( sc.isSuccess() ) {
+    const bool is_multiprocess = (Gaudi::Concurrency::ConcurrencyFlags::numProcs() > 0);
+    if (is_multiprocess) {
+      incsvc->addListener( this, AthenaInterprocess::UpdateAfterFork::type(), priority);
+    }
+    else {
+      incsvc->addListener( this, "BeginRun", priority);
+    }
   }
   
   return StatusCode::SUCCESS;