diff --git a/Grid/communicator/Communicator_mpi3.cc b/Grid/communicator/Communicator_mpi3.cc
index 71dd6ffe..e9399ddc 100644
--- a/Grid/communicator/Communicator_mpi3.cc
+++ b/Grid/communicator/Communicator_mpi3.cc
@@ -45,12 +45,14 @@ void CartesianCommunicator::Init(int *argc, char ***argv)
   if ( !flag ) {
 
 // Fugaku Tofu: enable by default
+/*
 #if defined (A64FX) || defined (A64FXFIXEDSIZE)
 #ifndef TOFU
 #define TOFU
 #pragma message ("TOFU network / MPI_THREAD_SERIALIZED")
 #endif
 #endif
+*/
 
 #if defined (TOFU) // FUGAKU, credits go to Issaku Kanamori
     nCommThreads=1;
diff --git a/SVE_README.txt b/SVE_README.txt
index ec84c5de..b8c7e03c 100644
--- a/SVE_README.txt
+++ b/SVE_README.txt
@@ -1,3 +1,12 @@
+* QPACE4 interactive login
+
+scl enable gcc-toolset-10 bash
+module load mpi/openmpi-aarch64
+
+../configure --without-hdf5 --enable-gen-simd-width=64 --enable-simd=GEN --enable-precision=double --enable-comms=mpi-auto --enable-openmp CXX=mpicxx CC=mpicc CXXFLAGS="-std=c++11 -march=armv8-a+sve -msve-vector-bits=512 -DA64FXFIXEDSIZE -DA64FXASM -DDSLASHINTRIN"
+
+------------------------------------------------------------------------------
+
 * gcc 10.0.1 VLA (merlin)
 
 ../configure --with-lime=/home/men04359/lime/c-lime --without-hdf5 --enable-gen-simd-width=64 --enable-simd=GEN --enable-precision=double --enable-comms=none --enable-openmp CXX=g++-10.0.1 CC=gcc-10.0.1 CXXFLAGS="-std=c++11 -march=armv8-a+sve -msve-vector-bits=512 -fno-gcse -DA64FX -DA64FXASM -DDSLASHINTRIN" LDFLAGS=-static GRID_LDFLAGS=-static MPI_CXXLDFLAGS=-static
@@ -35,7 +44,7 @@ TODO check ARMCLANGCOMPAT
 
 * armclang 20.1 VLA (fjt cluster)
 
-../configure --with-lime=$HOME/local --without-hdf5 --enable-gen-simd-width=64 --enable-simd=GEN --enable-precision=double --enable-comms=none --enable-openmp CXX=armclang++ CC=armclang CXXFLAGS="-std=c++11 -mcpu=a64fx -DARMCLANGCOMPAT -DA64FX -DA64FXASM -DDSLASHINTRIN"
+../configure --with-lime=$HOME/local --without-hdf5 --enable-gen-simd-width=64 --enable-simd=GEN --enable-precision=double --enable-comms=none --enable-openmp CXX=armclang++ CC=armclang CXXFLAGS="-std=c++11 -mcpu=a64fx -DARMCLANGCOMPAT -DA64FX -DA64FXASM -DDSLASHINTRIN -DTOFU"
 
 TODO check ARMCLANGCOMPAT