1 files changed, 40 insertions, 0 deletions
diff --git a/Source/Initialization/InjectorMomentum.cpp b/Source/Initialization/InjectorMomentum.cpp
new file mode 100644
index 000000000..a197b5bef
--- /dev/null
+++ b/Source/Initialization/InjectorMomentum.cpp
@@ -0,0 +1,40 @@
+#include <PlasmaInjector.H>
+
+using namespace amrex;
+
+InjectorMomentum::~InjectorMomentum ()
+{
+    switch (type)
+    {
+    case Type::parser:
+    {
+        object.parser.m_ux_parser.clear();
+        object.parser.m_uy_parser.clear();
+        object.parser.m_uz_parser.clear();
+        break;
+    }
+    case Type::custom:
+    {
+        object.custom.clear();
+        break;
+    }
+    }
+}
+
+// Compute the amount of memory needed in GPU Shared Memory.
+std::size_t
+InjectorMomentum::sharedMemoryNeeded () const noexcept
+{
+    switch (type)
+    {
+    case Type::parser:
+    {
+        // For parser injector, the 3D position of each particle
+        // is stored in shared memory.
+        return amrex::Gpu::numThreadsPerBlockParallelFor() * sizeof(double) * 3;
+    }
+    default:
+        return 0;
+    }
+}
+