GPU: Simplify setting calib objects

Author: davidrohr

GPU/GPUTracking/Base/GPUDataTypes.h

@@ -179,7 +179,7 @@ struct GPUCalibObjectsTemplate {
   typename S<TPCPadGainCalib>::type* tpcPadGain = nullptr;
   typename S<o2::base::Propagator>::type* o2Propagator = nullptr;
 };
-typedef GPUCalibObjectsTemplate<DefaultPtr> GPUCalibObjects;
+typedef GPUCalibObjectsTemplate<DefaultPtr> GPUCalibObjects; // NOTE: These 2 must have identical layout since they are memcopied
 typedef GPUCalibObjectsTemplate<ConstPtr> GPUCalibObjectsConst;
 
 struct GPUTrackingInOutZS {

GPU/GPUTracking/Global/GPUChainTracking.h

@@ -167,6 +167,8 @@ class GPUChainTracking : public GPUChain, GPUReconstructionHelpers::helperDelega
   void SetMatLUT(const o2::base::MatLayerCylSet* lut) { processors()->calibObjects.matLUT = lut; }
   void SetTRDGeometry(const o2::trd::GeometryFlat* geo) { processors()->calibObjects.trdGeometry = geo; }
   void SetO2Propagator(const o2::base::Propagator* prop) { processors()->calibObjects.o2Propagator = prop; }
+  void SetCalibObjects(const GPUCalibObjectsConst& obj) { processors()->calibObjects = obj; }
+  void SetCalibObjects(const GPUCalibObjects& obj) { memcpy((void*)&processors()->calibObjects, (const void*)&obj, sizeof(obj)); }
   void SetDefaultO2PropagatorForGPU();
   void LoadClusterErrors();
   void SetOutputControlCompressedClusters(GPUOutputControl* v) { mOutputCompressedClusters = v; }

GPU/GPUTracking/Interface/GPUO2Interface.cxx

@@ -52,12 +52,7 @@ int GPUTPCO2Interface::Initialize(const GPUO2InterfaceConfiguration& config)
     mConfig->configEvent.needsClusterer = 1;
   }
   mRec->SetSettings(&mConfig->configEvent, &mConfig->configReconstruction, &mConfig->configProcessing, &mConfig->configWorkflow);
-  mChain->SetTPCFastTransform(mConfig->configCalib.fastTransform);
-  mChain->SetTPCPadGainCalib(mConfig->configCalib.tpcPadGain);
-  mChain->SetdEdxSplines(mConfig->configCalib.dEdxSplines);
-  mChain->SetMatLUT(mConfig->configCalib.matLUT);
-  mChain->SetTRDGeometry(mConfig->configCalib.trdGeometry);
-  mChain->SetO2Propagator(mConfig->configCalib.o2Propagator);
+  mChain->SetCalibObjects(mConfig->configCalib);
   if (mConfig->configInterface.outputToExternalBuffers) {
     mOutputCompressedClusters.reset(new GPUOutputControl);
     mChain->SetOutputControlCompressedClusters(mOutputCompressedClusters.get());