better configure script for Cray (utils/Cray_compiler_information/con…

…figure_SPECFEM_for_Piz_Daint.bash)

doc/USER_MANUAL/02_getting_started.tex

@@ -59,6 +59,7 @@ \chapter{Getting Started}\label{cha:Getting-Started}
 
 If you have problems configuring the code on a Cray machine, i.e. for instance if you get an error message from the \texttt{configure} script, try exporting these two variables:
 \texttt{MPI\_INC=\${CRAY\_MPICH2\_DIR}/include and FCLIBS=" "}, and for more details if needed you can refer to the \texttt{utils/Cray\_compiler\_information} directory.
+You can also have a look at the configure script called \texttt{utils/Cray\_compiler\_information/configure\_SPECFEM\_for\_Piz\_Daint.bash}.
 
 On SGI systems, \texttt{flags.guess} automatically informs \texttt{configure}
 to insert `\texttt{`TRAP\_FPE=OFF}'' into the generated \texttt{Makefile}

utils/Cray_compiler_information/configure_SPECFEM_for_Piz_Daint.bash

@@ -0,0 +1,37 @@
+#!/bin/bash
+
+mpif90=ftn
+mpicc=cc
+f90=ftn
+cc=cc
+
+# run flags
+#flags="-eF -em -rm"
+#cflags="-h list=m"
+
+## memory > 2GB
+flags="-eF -em -rm -O3,fp3 -hpic -dynamic"
+cflags="-h list=m -hpic -dynamic"
+
+# debug flags
+#flags="-g -Rb -eF -rm -eC -eD" # -hfp2"
+#cflags="-g -h list=m"
+
+###
+### CUDA
+###
+CUDA_INC="${CRAY_CUDATOOLKIT_DIR}/include"
+CUDA_LIB="${CRAY_CUDATOOLKIT_DIR}/lib64"
+
+###
+### mpi.h / mpif.h
+###
+MPI_INC="${CRAY_MPICH2_DIR}/include"
+
+# DK DK June 2018: on Pascal P100 (for instance on Piz Daint in Switzerland) do *NOT* change --with-cuda=cuda8 below to --with-cuda=cuda9;
+# DK DK June 2018: only change that on machines that have Volta V100, not Pascal P100
+
+./configure \
+--with-cuda=cuda8 CUDA_INC="$CUDA_INC" CUDA_LIB="$CUDA_LIB" MPI_INC="$MPI_INC" \
+MPIFC=$mpif90 MPICC=$mpicc FC=$f90 CC=$cc CXX=$cc FLAGS_CHECK="$flags" CFLAGS="$cflags"
+