From b569f103693eea17b1af55ba40ab1370a8395999 Mon Sep 17 00:00:00 2001
From: Giulio Eulisse <10544+ktf@users.noreply.github.com>
Date: Sat, 7 Nov 2026 14:19:27 +0100
Subject: [PATCH] GPU: write settings.dump from the standalone event generator

GPUChainTracking::DumpSettings only writes the calibration objects, the
GRP settings.dump is written by GPUReconstruction::DumpSettings, so a
dataset produced with --eventGenerator could not be read back.
---
 GPU/GPUTracking/qa/genEvents.cxx | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/GPU/GPUTracking/qa/genEvents.cxx b/GPU/GPUTracking/qa/genEvents.cxx
index 5af7698fdb4dc..a47a9466e3326 100644
--- a/GPU/GPUTracking/qa/genEvents.cxx
+++ b/GPU/GPUTracking/qa/genEvents.cxx
@@ -357,7 +357,7 @@ void genEvents::RunEventGenerator(GPUChainTracking* rec, const std::string& dir)
 {
   std::unique_ptr<genEvents> gen(new genEvents(rec));
   mkdir(dir.c_str(), S_IRWXU | S_IRWXG | S_IROTH | S_IXOTH);
-  rec->DumpSettings(dir.c_str());
+  rec->rec()->DumpSettings(dir.c_str()); // the chain's own override does not write settings.dump
 
   gen->InitEventGenerator();