Restore cms::cuda::ESProduct construction without GPU

cms-sw · Aug 22, 2021 · c9c01df · c9c01df
1 parent 097fe4a
commit c9c01df
Showing 1 changed file with 6 additions and 4 deletions.
diff --git a/HeterogeneousCore/CUDACore/interface/ESProduct.h b/HeterogeneousCore/CUDACore/interface/ESProduct.h
@@ -20,10 +20,12 @@ namespace cms {
     class ESProduct {
     public:
       ESProduct() : gpuDataPerDevice_(numberOfDevices()) {
-        cms::cuda::ScopedSetDevice scopedDevice;
-        for (size_t i = 0; i < gpuDataPerDevice_.size(); ++i) {
-          scopedDevice.set(i);
-          gpuDataPerDevice_[i].m_event = getEventCache().get();
+        if (not gpuDataPerDevice_.empty()) {
+          cms::cuda::ScopedSetDevice scopedDevice;
+          for (size_t i = 0; i < gpuDataPerDevice_.size(); ++i) {
+            scopedDevice.set(i);
+            gpuDataPerDevice_[i].m_event = getEventCache().get();
+          }
         }
       }