cmake: first draft for JUQUEEN toolchain file

going to test it on the system

Author: torbjoernk

cmake/toolchain_juqueen.cmake

@@ -0,0 +1,24 @@
+# Toolchain File for JUQUEEN @ Juelich Supercomputing Center
+# BG/Q system
+#
+# Remark: IBM XL/C++ compiler is not supported by PFASST++ due to lack of C++11 support
+#
+# IMPORTANT!!
+# Make sure you have loaded only the following modules:
+#  - gcc/4.8.1
+#  - fftw3/3.3.3
+#
+# As well make sure you have built boost::program_options according to the instructions from the
+# PFASST++ documentation on JUQUEEN.
+#
+
+message(STATUS "Please make sure you have loaded at least gcc/4.8.1")
+
+set(CMAKE_C_COMPILER /bgsys/local/gcc/4.8.1/bin/mpigcc)
+set(CMAKE_CXX_COMPILER /bgsys/local/gcc/4.8.1/bin/mpig++)
+set(CMAKE_Fortran_COMPILER /bgsys/local/gcc/4.8.1/bin/mpigfortran)
+
+set(MPI_ROOT /bgsys/local/gcc/4.8.1)
+set(MPI_C_COMPILER ${MPI_ROOT}/bin/mpigcc)
+set(MPI_CXX_COMPILER ${MPI_ROOT}/bin/mpig++)
+set(MPI_Fortran_COMPILER ${MPI_ROOT}/bin/mpigfortran)