diff --git a/enzyme/Enzyme/ActivityAnalysis.cpp b/enzyme/Enzyme/ActivityAnalysis.cpp
index e69145815ee..1e828629cb9 100644
--- a/enzyme/Enzyme/ActivityAnalysis.cpp
+++ b/enzyme/Enzyme/ActivityAnalysis.cpp
@@ -111,6 +111,8 @@ static const StringSet<> InactiveGlobals = {
     "jl_small_typeof",
     "ompi_request_null",
     "ompi_mpi_double",
+    "RSMPI_DOUBLE",
+    "RSMPI_FLOAT",
     "ompi_mpi_comm_world",
     "__cxa_thread_atexit_impl",
     "stderr",
diff --git a/enzyme/Enzyme/AdjointGenerator.h b/enzyme/Enzyme/AdjointGenerator.h
index 19a832dd8e8..1b9fe136b6c 100644
--- a/enzyme/Enzyme/AdjointGenerator.h
+++ b/enzyme/Enzyme/AdjointGenerator.h
@@ -145,9 +145,10 @@ class AdjointGenerator : public llvm::InstVisitor<AdjointGenerator> {
         C = CE->getOperand(0);
       }
       if (auto GV = dyn_cast<GlobalVariable>(C)) {
-        if (GV->getName() == "ompi_mpi_double") {
+        auto name = GV->getName();
+        if (name == "ompi_mpi_double" || name == "RSMPI_DOUBLE") {
           return ConstantInt::get(intType, 8, false);
-        } else if (GV->getName() == "ompi_mpi_float") {
+        } else if (name == "ompi_mpi_float" || name == "RSMPI_FLOAT") {
           return ConstantInt::get(intType, 4, false);
         }
       }
diff --git a/enzyme/Enzyme/TypeAnalysis/TypeAnalysis.cpp b/enzyme/Enzyme/TypeAnalysis/TypeAnalysis.cpp
index bf481c13b93..21fbe612daa 100644
--- a/enzyme/Enzyme/TypeAnalysis/TypeAnalysis.cpp
+++ b/enzyme/Enzyme/TypeAnalysis/TypeAnalysis.cpp
@@ -4785,11 +4785,12 @@ void TypeAnalyzer::visitCallBase(CallBase &call) {
           C = CE->getOperand(0);
         }
         if (auto GV = dyn_cast<GlobalVariable>(C)) {
-          if (GV->getName() == "ompi_mpi_double") {
+          auto name = GV->getName();
+          if (name == "ompi_mpi_double" || name == "RSMPI_DOUBLE") {
             buf.insert({0}, Type::getDoubleTy(C->getContext()));
-          } else if (GV->getName() == "ompi_mpi_float") {
+          } else if (name == "ompi_mpi_float" || name == "RSMPI_FLOAT") {
             buf.insert({0}, Type::getFloatTy(C->getContext()));
-          } else if (GV->getName() == "ompi_mpi_cxx_bool") {
+          } else if (name == "ompi_mpi_cxx_bool") {
             buf.insert({0}, BaseType::Integer);
           }
         } else if (auto CI = dyn_cast<ConstantInt>(C)) {
diff --git a/enzyme/Enzyme/Utils.cpp b/enzyme/Enzyme/Utils.cpp
index 1e87bf2a9a0..7f29078b1af 100644
--- a/enzyme/Enzyme/Utils.cpp
+++ b/enzyme/Enzyme/Utils.cpp
@@ -2344,9 +2344,10 @@ bool writesToMemoryReadBy(llvm::AAResults &AA, llvm::TargetLibraryInfo &TLI,
           C = CE->getOperand(0);
         }
         if (auto GV = dyn_cast<GlobalVariable>(C)) {
-          if (GV->getName() == "ompi_mpi_double") {
+          auto name = GV->getName();
+          if (name == "ompi_mpi_double" || name == "RSMPI_DOUBLE") {
             type = ConcreteType(Type::getDoubleTy(C->getContext()));
-          } else if (GV->getName() == "ompi_mpi_float") {
+          } else if (name == "ompi_mpi_float" || name == "RSMPI_FLOAT") {
             type = ConcreteType(Type::getFloatTy(C->getContext()));
           }
         }