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<body class='hmmessage'><div dir='ltr'>Hello,<br><br> I re-installed the petsc with --download_hypre and --download_ml. The two test examples ex19 and ex5f run successfully. <br><br> I added the libraries link in the makefile like:<br> <br> -Wl,-rpath,${PETSC_DIR}/${PETSC_ARCH}/lib -L${PETSC_DIR}/${PETSC_ARCH}/lib -lHYPRE -L/usr/lib/gcc/x86_64-redhat-linux/4.4.7 -lmpichcxx -lstdc++ \<br> -Wl,-rpath,${PETSC_DIR}/${PETSC_ARCH}/lib -L${PETSC_DIR}/${PETSC_ARCH}/lib -lml -L/usr/lib/gcc/x86_64-redhat-linux/4.4.7 -lmpichcxx -lstdc++ \<br><br> However, the compiling errors occurred:<br><br> /home/pwang/soft/petsc-3.3-p6/arch-linux2-c-debug/lib/libmpich.a(init.o): In function `PMPI_Init':<br>/home/pwang/soft/petsc-3.3-p6/externalpackages/mpich2-1.4.1p1/src/mpi/init/init.c:106: undefined reference to `MPL_env2str'<br>/home/pwang/soft/petsc-3.3-p6/externalpackages/mpich2-1.4.1p1/src/mpi/init/init.c:132: undefined reference to `MPL_env2bool'<br>/home/pwang/soft/petsc-3.3-p6/arch-linux2-c-debug/lib/libmpich.a(initthread.o): In function `PMPI_Init_thread':<br>/home/pwang/soft/petsc-3.3-p6/externalpackages/mpich2-1.4.1p1/src/mpi/init/initthread.c:535: undefined reference to `MPL_env2bool'<br>/home/pwang/soft/petsc-3.3-p6/arch-linux2-c-debug/lib/libmpich.a(param_vals.o): In function `MPIR_Param_init_params':<br>/home/pwang/soft/petsc-3.3-p6/externalpackages/mpich2-1.4.1p1/src/util/param/param_vals.c:249: undefined reference to `MPL_env2int'<br>/home/pwang/soft/petsc-3.3-p6/externalpackages/mpich2-1.4.1p1/src/util/param/param_vals.c:251: undefined reference to `MPL_env2int'<br>/home/pwang/soft/petsc-3.3-p6/externalpackages/mpich2-1.4.1p1/src/util/param/param_vals.c:254: undefined reference to `MPL_env2int'<br>/home/pwang/soft/petsc-3.3-p6/externalpackages/mpich2-1.4.1p1/src/util/param/param_vals.c:256: undefined reference to `MPL_env2int'<br>/home/pwang/soft/petsc-3.3-p6/externalpackages/mpich2-1.4.1p1/src/util/param/param_vals.c:259: undefined reference to `MPL_env2int'<br>/home/pwang/soft/petsc-3.3-p6/arch-linux2-c-debug/lib/libmpich.a(param_vals.o):/home/pwang/soft/petsc-3.3-p6/externalpackages/mpich2-1.4.1p1/src/util/param/param_vals.c:261: more undefined references to `MPL_env2int' follow<br>... ...<br><br>It seems there is some library link I missed in the makefile. What should I add? Why it didn't happen before I re-install? Thanks.<br> <br> </div></body>
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