diff --git a/include/atrip/SliceUnion.hpp b/include/atrip/SliceUnion.hpp
index 008c926..6ecaf9a 100644
--- a/include/atrip/SliceUnion.hpp
+++ b/include/atrip/SliceUnion.hpp
@@ -465,30 +465,30 @@ template <typename F=double>
 
 #if defined(HAVE_CUDA)
       LOG(1,"Atrip") << "warming communication up " << slices.size() << "\n";
-      WITH_CHRONO("cuda:warmup",
-                   int nRanks=Atrip::np, requestCount=0;
-                   int nSends=sliceBuffers.size()*nRanks;
-                   MPI_Request *requests = (MPI_Request*) malloc(nSends*2 * sizeof(MPI_Request));
-                   MPI_Status *statuses = (MPI_Status*) malloc(nSends*2 * sizeof(MPI_Status));
-                   for (int sliceId=0; sliceId<sliceBuffers.size(); sliceId++){
-                     for (int rankId=0; rankId<nRanks; rankId++){
-                       MPI_Isend((void*)SOURCES_DATA(sources[0]),
-                                 sliceSize,
-                                 traits::mpi::datatypeOf<F>(),
-                                 rankId,
-                                 100,
-                                 universe,
-                                 &requests[requestCount++]);
-                       MPI_Irecv((void*)sliceBuffers[sliceId],
-                                 sliceSize,
-                                 traits::mpi::datatypeOf<F>(),
-                                 rankId,
-                                 100,
-                                 universe,
-                                 &requests[requestCount++]);
-                     }
-                   }
-                   MPI_Waitall(nSends*2, requests, statuses);
+      WITH_CHRONO("cuda:warmup",
+                  int nRanks=Atrip::np, requestCount=0;
+                  int nSends=sliceBuffers.size()*nRanks;
+                  MPI_Request *requests = (MPI_Request*) malloc(nSends*2 * sizeof(MPI_Request));
+                  MPI_Status *statuses = (MPI_Status*) malloc(nSends*2 * sizeof(MPI_Status));
+                  for (int sliceId=0; sliceId<sliceBuffers.size(); sliceId++){
+                    for (int rankId=0; rankId<nRanks; rankId++){
+                      MPI_Isend((void*)SOURCES_DATA(sources[0]),
+                                sliceSize,
+                                traits::mpi::datatypeOf<F>(),
+                                rankId,
+                                100,
+                                universe,
+                                &requests[requestCount++]);
+                      MPI_Irecv((void*)sliceBuffers[sliceId],
+                                sliceSize,
+                                traits::mpi::datatypeOf<F>(),
+                                rankId,
+                                100,
+                                universe,
+                                &requests[requestCount++]);
+                    }
+                  }
+                  MPI_Waitall(nSends*2, requests, statuses);
                   )
 #endif