It is stated in the dealii webpage that it is highly recommended to compile dealii with mpi support. But is it really necessary for a single machine? By the way, the object and binary file compiled by mpic++ is much larger in size than that compiled by g++. I am afraid this will affect the speed of the program.
On Wed, Mar 2, 2011 at 7:56 PM, Yuliang Wang <[email protected]>wrote: > I got the following error when configuring dealii with --enable-mpi option. > I do have mpich2 installed in my system. > > Configuring deal.II version 7.0.0 > checking build system type... x86_64-unknown-linux-gnu > checking host system type... x86_64-unknown-linux-gnu > checking target system type... x86_64-unknown-linux-gnu > > ---------------- configuring C/C++ compilers ---------------- > checking whether to explicitly use MPI... yes > checking for gcc... mpicc > checking whether the C compiler works... yes > checking for C compiler default output file name... a.out > checking for suffix of executables... > checking whether we are cross compiling... no > checking for suffix of object files... o > checking whether we are using the GNU C compiler... yes > checking whether mpicc accepts -g... yes > checking for mpicc option to accept ISO C89... none needed > checking for mpicc... /usr/bin/mpicc > checking whether we are using the GNU C++ compiler... no > checking whether mpiCC accepts -g... no > checking for mpiCC... no > Unrecognized C++ compiler -- Try to go ahead and get help from > [email protected] > checking if the compiler is built for MPI... no > Unknown C++ compiler - using generic options > C compiler is gcc4.4 > configure: error: No threading compiler options for this C++ compiler > specified at present > > > -- > *Yuliang* > -- *Yuliang*
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