From 241f74d058c2d4065305138cae25646e1d0681c3 Mon Sep 17 00:00:00 2001
From: Andre Stahl <andre.stahl@cern.ch>
Date: Fri, 6 Aug 2021 14:59:47 +0200
Subject: [PATCH] Increased maxNumberOfTuples and maxCellsPerHit to avoid
 overflow in HI events

---
 RecoPixelVertexing/PixelTriplets/plugins/CAConstants.h | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/RecoPixelVertexing/PixelTriplets/plugins/CAConstants.h b/RecoPixelVertexing/PixelTriplets/plugins/CAConstants.h
index 8ea536465814c..8d651479060c5 100644
--- a/RecoPixelVertexing/PixelTriplets/plugins/CAConstants.h
+++ b/RecoPixelVertexing/PixelTriplets/plugins/CAConstants.h
@@ -32,9 +32,10 @@ namespace caConstants {
   constexpr uint32_t maxCellsPerHit = 128 / 2;
 #else   // GPU_SMALL_EVENTS
   // tested on MC events with 55-75 pileup events
-  constexpr uint32_t maxNumberOfTuples = 24 * 1024;
+  // and extended for Heavy Ions operations (24k -> 32k tuples, 128 -> 256 cells)
+  constexpr uint32_t maxNumberOfTuples = 32 * 1024;
   constexpr uint32_t maxNumberOfDoublets = 512 * 1024;
-  constexpr uint32_t maxCellsPerHit = 128;
+  constexpr uint32_t maxCellsPerHit = 256;
 #endif  // GPU_SMALL_EVENTS
 #endif  // ONLY_PHICUT
   constexpr uint32_t maxNumOfActiveDoublets = maxNumberOfDoublets / 8;