ITSMFT: share tracking slab allocation primitives (#15730)

* ITSMFT: share tracking slab allocation primitives

* ITSMFT: complete tracking allocation migration

* ITSMFT: reuse capacity estimator statistics storage

* ITSMFT: establish common tracking dependency direction

* ITSMFT: move shared tracking support out of ITS

* Address ITSMFT tracking review feedback

* ITSMFT: decouple capacity estimator from slab sink statistics

Author: mpuccio

Detectors/ITSMFT/ITS/tracking/CMakeLists.txt

@@ -13,7 +13,6 @@ o2_add_library(ITStracking
                TARGETVARNAME targetName
                SOURCES src/ClusterLines.cxx
                        src/Cluster.cxx
-                       src/CapacityEstimator.cxx
                        src/Configuration.cxx
                        src/FastMultEstConfig.cxx
                        src/FastMultEst.cxx
@@ -22,7 +21,6 @@ o2_add_library(ITStracking
                        src/IOUtils.cxx
                        src/Tracker.cxx
                        src/TrackerTraits.cxx
-                       src/TrackingConfigParam.cxx
                        src/Vertexer.cxx
                        src/VertexerTraits.cxx
                PUBLIC_LINK_LIBRARIES
@@ -36,9 +34,11 @@ o2_add_library(ITStracking
                        O2::ITSReconstruction
                        O2::ITSMFTReconstruction
                        O2::DataFormatsITS
+                       O2::ITSMFTTracking
                PRIVATE_LINK_LIBRARIES
                        O2::Steer
                        TBB::tbb)
+
 # target_compile_options(${targetName} PRIVATE -O0 -g -fPIC -fno-omit-frame-pointer)
 
 o2_add_library(ITSTrackingInterface
@@ -55,7 +55,6 @@ o2_target_root_dictionary(ITStracking
                                   include/ITStracking/Cluster.h
                                   include/ITStracking/Definitions.h
                                   include/ITStracking/FastMultEstConfig.h
-                                  include/ITStracking/TrackingConfigParam.h
                           LINKDEF src/TrackingLinkDef.h)
 
 if(CUDA_ENABLED OR HIP_ENABLED)

Detectors/ITSMFT/ITS/tracking/GPU/ITStrackingGPU/TimeFrameGPU.h

@@ -16,7 +16,7 @@
 #include <gsl/gsl>
 #include <bitset>
 
-#include "ITStracking/BoundedAllocator.h"
+#include "ITSMFTTracking/BoundedAllocator.h"
 #include "ITStracking/TimeFrame.h"
 #include "ITStracking/Configuration.h"
 #include "ITStracking/TrackExtensionHypothesis.h"

Detectors/ITSMFT/ITS/tracking/GPU/ITStrackingGPU/TrackingKernels.h

@@ -16,16 +16,19 @@
 #include <array>
 #include <gsl/gsl>
 
-#include "ITStracking/BoundedAllocator.h"
-#include "ITStracking/CapacityEstimator.h"
-#include "ITStracking/ROFLookupTables.h"
+#include "ITSMFTTracking/BoundedAllocator.h"
+#include "ITSMFTTracking/CapacityEstimator.h"
+#include "ITSMFTTracking/ROFLookupTables.h"
 #include "ITStracking/TrackingTopology.h"
 #include "ITStracking/TrackExtensionHypothesis.h"
 #include "ITStrackingGPU/Utils.h"
 #include "DetectorsBase/Propagator.h"
 
 namespace o2::its
 {
+using o2::itsmft::tracking::bounded_vector;
+using o2::itsmft::tracking::CapacityEstimator;
+
 class CellSeed;
 struct CellNeighbour;
 template <int>

Detectors/ITSMFT/ITS/tracking/GPU/ITStrackingGPU/Utils.h

@@ -20,7 +20,7 @@
 #include <string>
 #include <tuple>
 
-#include "ITStracking/MathUtils.h"
+#include "ITSMFTTracking/MathUtils.h"
 #include "ITStracking/ExternalAllocator.h"
 
 #include "GPUCommonDef.h"

Detectors/ITSMFT/ITS/tracking/GPU/cuda/TimeFrameGPU.cu

@@ -20,8 +20,8 @@
 #include <vector>
 
 #include "ITStrackingGPU/TimeFrameGPU.h"
-#include "ITStracking/Constants.h"
-#include "ITStracking/BoundedAllocator.h"
+#include "ITSMFTTracking/Constants.h"
+#include "ITSMFTTracking/BoundedAllocator.h"
 #include "ITStrackingGPU/Utils.h"
 
 #include "GPUCommonDef.h"

Detectors/ITSMFT/ITS/tracking/GPU/cuda/TrackerTraitsGPU.cxx

@@ -20,6 +20,9 @@
 namespace o2::its
 {
 
+using o2::itsmft::tracking::runOnSlab;
+using o2::itsmft::tracking::SlabSite;
+
 template <int NLayers>
 void TrackerTraitsGPU<NLayers>::initialiseTimeFrame(const int iteration)
 {

Detectors/ITSMFT/ITS/tracking/GPU/cuda/TrackingKernels.cu

@@ -29,11 +29,11 @@
 #include <thrust/unique.h>
 
 #include "DataFormatsITS/TrackITS.h"
-#include "ITStracking/Constants.h"
+#include "ITSMFTTracking/Constants.h"
 #include "ITStracking/Definitions.h"
 #include "ITStracking/IndexTableUtils.h"
 #include "ITStrackingGPU/LaunchGeometry.h"
-#include "ITStracking/MathUtils.h"
+#include "ITSMFTTracking/MathUtils.h"
 #include "ITStracking/ExternalAllocator.h"
 #include "ITStracking/Tracklet.h"
 #include "ITStracking/Cluster.h"
@@ -52,6 +52,9 @@ using namespace o2::track;
 
 namespace o2::its
 {
+
+using o2::itsmft::tracking::runOnSlab;
+using o2::itsmft::tracking::SlabSite;
 namespace gpu
 {