ITS: fix single threaded

f3sch · f3sch · commit e33196152478 · 2025-06-03T08:20:04.000+02:00
Signed-off-by: Felix Schlepper &lt;felix.schlepper@cern.ch&gt;
diff --git a/Detectors/ITSMFT/ITS/tracking/src/TrackerTraits.cxx b/Detectors/ITSMFT/ITS/tracking/src/TrackerTraits.cxx
@@ -1049,7 +1049,7 @@ bool TrackerTraits<nLayers>::isMatLUT() const
 template <int nLayers>
 void TrackerTraits<nLayers>::setNThreads(int n)
 {
-  if (mNThreads == n) {
+  if (mNThreads == n && mTaskArena.is_active()) {
     return;
   }
   mNThreads = n > 0 ? n : 1;
diff --git a/Detectors/ITSMFT/ITS/tracking/src/VertexerTraits.cxx b/Detectors/ITSMFT/ITS/tracking/src/VertexerTraits.cxx
@@ -695,7 +695,7 @@ void VertexerTraits::computeVerticesInRof(int rofId,
 
 void VertexerTraits::setNThreads(int n)
 {
-  if (mNThreads == n) {
+  if (mNThreads == n && mTaskArena.is_active()) {
     return;
   }
   mNThreads = n > 0 ? n : 1;

Original file line number	Diff line number	Diff line change
`@@ -1049,7 +1049,7 @@ bool TrackerTraits<nLayers>::isMatLUT() const`
`1049`	`1049`	`template <int nLayers>`
`1050`	`1050`	`void TrackerTraits<nLayers>::setNThreads(int n)`
`1051`	`1051`	`{`
`1052`		`- if (mNThreads == n) {`
	`1052`	`+ if (mNThreads == n && mTaskArena.is_active()) {`
`1053`	`1053`	`return;`
`1054`	`1054`	`}`
`1055`	`1055`	`mNThreads = n > 0 ? n : 1;`
Original file line number	Diff line number	Diff line change
`@@ -695,7 +695,7 @@ void VertexerTraits::computeVerticesInRof(int rofId,`
`695`	`695`
`696`	`696`	`void VertexerTraits::setNThreads(int n)`
`697`	`697`	`{`
`698`		`- if (mNThreads == n) {`
	`698`	`+ if (mNThreads == n && mTaskArena.is_active()) {`
`699`	`699`	`return;`
`700`	`700`	`}`
`701`	`701`	`mNThreads = n > 0 ? n : 1;`