diff --git a/src/mx/system/environment.cpp b/src/mx/system/environment.cpp
new file mode 100644
index 0000000..7e379d0
--- /dev/null
+++ b/src/mx/system/environment.cpp
@@ -0,0 +1,14 @@
+#include "environment.h"
+#include <mx/util/core_set.h>
+
+using namespace mx::system;
+
+void Environment::set_cores(mx::util::core_set *core_set)
+{
+    system::Environment::get_instance()._coreset = core_set;
+}
+
+mx::util::core_set &Environment::cores()
+{
+    return *Environment::get_instance()._coreset;
+}
\ No newline at end of file