diff --git a/AMDiS/libtool b/AMDiS/libtool
index 6a7f3c767c5190ca326df932f5aaf9521edace61..2144386149ea400cd8a80c98a6795840876d592b 100755
--- a/AMDiS/libtool
+++ b/AMDiS/libtool
@@ -30,10 +30,10 @@
 # the same distribution terms that you use for the rest of that program.
 
 # A sed program that does not truncate output.
-SED="/bin/sed"
+SED="/usr/bin/sed"
 
 # Sed that helps us avoid accidentally triggering echo(1) options like -n.
-Xsed="/bin/sed -e 1s/^X//"
+Xsed="/usr/bin/sed -e 1s/^X//"
 
 # The HP-UX ksh and POSIX shell print the target directory to stdout
 # if CDPATH is set.
@@ -44,7 +44,7 @@ available_tags=" CXX F77"
 
 # ### BEGIN LIBTOOL CONFIG
 
-# Libtool was configured on host NWRW15:
+# Libtool was configured on host deimos101:
 
 # Shell to use when invoking shell scripts.
 SHELL="/bin/sh"
@@ -66,12 +66,12 @@ fast_install=yes
 
 # The host system.
 host_alias=
-host=i686-pc-linux-gnu
+host=x86_64-unknown-linux-gnu
 host_os=linux-gnu
 
 # The build system.
 build_alias=
-build=i686-pc-linux-gnu
+build=x86_64-unknown-linux-gnu
 build_os=linux-gnu
 
 # An echo program that does not interpret backslashes.
@@ -82,13 +82,13 @@ AR="ar"
 AR_FLAGS="cru"
 
 # A C compiler.
-LTCC="gcc"
+LTCC="/licsoft/libraries/openmpi/1.2.6/64bit/bin/mpicc"
 
 # LTCC compiler flags.
 LTCFLAGS="-g -O2"
 
 # A language-specific compiler.
-CC="gcc"
+CC="/licsoft/libraries/openmpi/1.2.6/64bit/bin/mpicc"
 
 # Is the compiler the GNU C compiler?
 with_gcc=yes
@@ -97,7 +97,7 @@ with_gcc=yes
 EGREP="grep -E"
 
 # The linker used to build libraries.
-LD="/usr/bin/ld"
+LD="/usr/x86_64-suse-linux/bin/ld -m elf_x86_64"
 
 # Whether we need hard or soft links.
 LN_S="ln -s"
@@ -171,7 +171,7 @@ dlopen_self=unknown
 dlopen_self_static=unknown
 
 # Compiler flag to prevent dynamic linking.
-link_static_flag="-static"
+link_static_flag=""
 
 # Compiler flag to turn off builtin functions.
 no_builtin_flag=" -fno-builtin"
@@ -325,10 +325,10 @@ variables_saved_for_relink="PATH LD_LIBRARY_PATH LD_RUN_PATH GCC_EXEC_PREFIX COM
 link_all_deplibs=unknown
 
 # Compile-time system search path for libraries
-sys_lib_search_path_spec=" /u/witkowski/local/lib/i386-redhat-linux/4.1.2/ /u/witkowski/local/lib/ /u/witkowski/local/intel/mkl/10.0.1.014/lib/32/i386-redhat-linux/4.1.2/ /u/witkowski/local/intel/mkl/10.0.1.014/lib/32/ /usr/lib/gcc/i386-redhat-linux/4.1.2/ /usr/lib/gcc/i386-redhat-linux/4.1.2/ /usr/lib/gcc/i386-redhat-linux/4.1.2/../../../../i386-redhat-linux/lib/i386-redhat-linux/4.1.2/ /usr/lib/gcc/i386-redhat-linux/4.1.2/../../../../i386-redhat-linux/lib/ /usr/lib/gcc/i386-redhat-linux/4.1.2/../../../i386-redhat-linux/4.1.2/ /usr/lib/gcc/i386-redhat-linux/4.1.2/../../../ /lib/i386-redhat-linux/4.1.2/ /lib/ /usr/lib/i386-redhat-linux/4.1.2/ /usr/lib/"
+sys_lib_search_path_spec=" /fastfs/witkowsk/local/lib/x86_64-suse-linux/4.1.2/ /fastfs/witkowsk/local/lib/../lib64/ /usr/lib64/gcc/x86_64-suse-linux/4.1.2/ /usr/lib/gcc/x86_64-suse-linux/4.1.2/ /usr/lib64/gcc/x86_64-suse-linux/4.1.2/../../../../x86_64-suse-linux/lib/x86_64-suse-linux/4.1.2/ /usr/lib64/gcc/x86_64-suse-linux/4.1.2/../../../../x86_64-suse-linux/lib/../lib64/ /usr/lib64/gcc/x86_64-suse-linux/4.1.2/../../../x86_64-suse-linux/4.1.2/ /usr/lib64/gcc/x86_64-suse-linux/4.1.2/../../../../lib64/ /lib/x86_64-suse-linux/4.1.2/ /lib/../lib64/ /usr/lib/x86_64-suse-linux/4.1.2/ /usr/lib/../lib64/ /fastfs/witkowsk/local/lib/ /usr/lib64/gcc/x86_64-suse-linux/4.1.2/../../../../x86_64-suse-linux/lib/ /usr/lib64/gcc/x86_64-suse-linux/4.1.2/../../../ /lib/ /usr/lib/"
 
 # Run-time system search path for libraries
-sys_lib_dlsearch_path_spec="/lib /usr/lib /usr/lib/mysql /usr/lib/octave-2.9.9 /usr/lib/qt-3.3/lib /usr/lib/qt4/lib /usr/lib/xulrunner-1.9.2 "
+sys_lib_dlsearch_path_spec="/lib /usr/lib /usr/X11R6/lib64/Xaw3d /usr/X11R6/lib64 /usr/X11R6/lib/Xaw3d /usr/X11R6/lib /usr/x86_64-suse-linux/lib /usr/local/lib64 /usr/local/lib /opt/kde3/lib64 /opt/kde3/lib /opt/gnome/lib64 /opt/gnome/lib /lib64 /lib /usr/lib64 /usr/lib /opt/cluster/intel/cce/9.1.042/lib /opt/cluster/intel/fce/9.1.036/lib /opt/cluster/Pathscale3.0/lib/2.9.99 /opt/cluster/Pathscale3.0/lib/2.9.99/32 /work/licsoft/compilers/pgi/linux86-64/6.2/lib /work/licsoft/compilers/pgi/linux86-64/6.2/libso "
 
 # Fix the shell variable $srcfile for the compiler.
 fix_srcfile_path=""
@@ -6760,7 +6760,7 @@ build_old_libs=`case $build_libtool_libs in yes) $echo no;; *) $echo yes;; esac`
 # End:
 # ### BEGIN LIBTOOL TAG CONFIG: CXX
 
-# Libtool was configured on host NWRW15:
+# Libtool was configured on host deimos101:
 
 # Shell to use when invoking shell scripts.
 SHELL="/bin/sh"
@@ -6782,12 +6782,12 @@ fast_install=yes
 
 # The host system.
 host_alias=
-host=i686-pc-linux-gnu
+host=x86_64-unknown-linux-gnu
 host_os=linux-gnu
 
 # The build system.
 build_alias=
-build=i686-pc-linux-gnu
+build=x86_64-unknown-linux-gnu
 build_os=linux-gnu
 
 # An echo program that does not interpret backslashes.
@@ -6798,13 +6798,13 @@ AR="ar"
 AR_FLAGS="cru"
 
 # A C compiler.
-LTCC="gcc"
+LTCC="/licsoft/libraries/openmpi/1.2.6/64bit/bin/mpicc"
 
 # LTCC compiler flags.
 LTCFLAGS="-g -O2"
 
 # A language-specific compiler.
-CC="g++"
+CC="/licsoft/libraries/openmpi/1.2.6/64bit/bin/mpicxx"
 
 # Is the compiler the GNU C compiler?
 with_gcc=yes
@@ -6813,7 +6813,7 @@ with_gcc=yes
 EGREP="grep -E"
 
 # The linker used to build libraries.
-LD="/usr/bin/ld"
+LD="/usr/x86_64-suse-linux/bin/ld -m elf_x86_64"
 
 # Whether we need hard or soft links.
 LN_S="ln -s"
@@ -6887,7 +6887,7 @@ dlopen_self=unknown
 dlopen_self_static=unknown
 
 # Compiler flag to prevent dynamic linking.
-link_static_flag="-static"
+link_static_flag=""
 
 # Compiler flag to turn off builtin functions.
 no_builtin_flag=" -fno-builtin"
@@ -6942,11 +6942,11 @@ striplib="strip --strip-unneeded"
 
 # Dependencies to place before the objects being linked to create a
 # shared library.
-predep_objects="/usr/lib/gcc/i386-redhat-linux/4.1.2/../../../crti.o /usr/lib/gcc/i386-redhat-linux/4.1.2/crtbeginS.o"
+predep_objects="/usr/lib64/gcc/x86_64-suse-linux/4.1.2/../../../../lib64/crti.o /usr/lib64/gcc/x86_64-suse-linux/4.1.2/crtbeginS.o"
 
 # Dependencies to place after the objects being linked to create a
 # shared library.
-postdep_objects="/usr/lib/gcc/i386-redhat-linux/4.1.2/crtendS.o /usr/lib/gcc/i386-redhat-linux/4.1.2/../../../crtn.o"
+postdep_objects="/usr/lib64/gcc/x86_64-suse-linux/4.1.2/crtendS.o /usr/lib64/gcc/x86_64-suse-linux/4.1.2/../../../../lib64/crtn.o"
 
 # Dependencies to place before the objects being linked to create a
 # shared library.
@@ -6954,11 +6954,11 @@ predeps=""
 
 # Dependencies to place after the objects being linked to create a
 # shared library.
-postdeps="-lstdc++ -lm -lgcc_s -lc -lgcc_s"
+postdeps="-lmpi_cxx -lmpi -lopen-rte -lopen-pal -libverbs -lrt -lnuma -ldl -lnsl -lutil -ldl -lstdc++ -lm -lgcc_s -lpthread -lc -lgcc_s"
 
 # The library search path used internally by the compiler when linking
 # a shared library.
-compiler_lib_search_path="-L/u/witkowski/local/lib -L/u/witkowski/local/intel/mkl/10.0.1.014/lib/32 -L/usr/lib/gcc/i386-redhat-linux/4.1.2 -L/usr/lib/gcc/i386-redhat-linux/4.1.2 -L/usr/lib/gcc/i386-redhat-linux/4.1.2/../../.."
+compiler_lib_search_path="-L/usr/lib64 -L/licsoft/libraries/openmpi/1.2.6/64bit/lib -L/usr/lib64/gcc/x86_64-suse-linux/4.1.2 -L/usr/lib64/gcc/x86_64-suse-linux/4.1.2/../../../../lib64 -L/lib/../lib64 -L/usr/lib/../lib64 -L/fastfs/witkowsk/local/lib -L/usr/lib64/gcc/x86_64-suse-linux/4.1.2/../../../../x86_64-suse-linux/lib -L/usr/lib64/gcc/x86_64-suse-linux/4.1.2/../../.."
 
 # Method to check whether dependent libraries are shared objects.
 deplibs_check_method="pass_all"
@@ -7038,10 +7038,10 @@ variables_saved_for_relink="PATH LD_LIBRARY_PATH LD_RUN_PATH GCC_EXEC_PREFIX COM
 link_all_deplibs=unknown
 
 # Compile-time system search path for libraries
-sys_lib_search_path_spec=" /u/witkowski/local/lib/i386-redhat-linux/4.1.2/ /u/witkowski/local/lib/ /u/witkowski/local/intel/mkl/10.0.1.014/lib/32/i386-redhat-linux/4.1.2/ /u/witkowski/local/intel/mkl/10.0.1.014/lib/32/ /usr/lib/gcc/i386-redhat-linux/4.1.2/ /usr/lib/gcc/i386-redhat-linux/4.1.2/ /usr/lib/gcc/i386-redhat-linux/4.1.2/../../../../i386-redhat-linux/lib/i386-redhat-linux/4.1.2/ /usr/lib/gcc/i386-redhat-linux/4.1.2/../../../../i386-redhat-linux/lib/ /usr/lib/gcc/i386-redhat-linux/4.1.2/../../../i386-redhat-linux/4.1.2/ /usr/lib/gcc/i386-redhat-linux/4.1.2/../../../ /lib/i386-redhat-linux/4.1.2/ /lib/ /usr/lib/i386-redhat-linux/4.1.2/ /usr/lib/"
+sys_lib_search_path_spec=" /fastfs/witkowsk/local/lib/x86_64-suse-linux/4.1.2/ /fastfs/witkowsk/local/lib/../lib64/ /usr/lib64/gcc/x86_64-suse-linux/4.1.2/ /usr/lib/gcc/x86_64-suse-linux/4.1.2/ /usr/lib64/gcc/x86_64-suse-linux/4.1.2/../../../../x86_64-suse-linux/lib/x86_64-suse-linux/4.1.2/ /usr/lib64/gcc/x86_64-suse-linux/4.1.2/../../../../x86_64-suse-linux/lib/../lib64/ /usr/lib64/gcc/x86_64-suse-linux/4.1.2/../../../x86_64-suse-linux/4.1.2/ /usr/lib64/gcc/x86_64-suse-linux/4.1.2/../../../../lib64/ /lib/x86_64-suse-linux/4.1.2/ /lib/../lib64/ /usr/lib/x86_64-suse-linux/4.1.2/ /usr/lib/../lib64/ /fastfs/witkowsk/local/lib/ /usr/lib64/gcc/x86_64-suse-linux/4.1.2/../../../../x86_64-suse-linux/lib/ /usr/lib64/gcc/x86_64-suse-linux/4.1.2/../../../ /lib/ /usr/lib/"
 
 # Run-time system search path for libraries
-sys_lib_dlsearch_path_spec="/lib /usr/lib /usr/lib/mysql /usr/lib/octave-2.9.9 /usr/lib/qt-3.3/lib /usr/lib/qt4/lib /usr/lib/xulrunner-1.9.2 "
+sys_lib_dlsearch_path_spec="/lib /usr/lib /usr/X11R6/lib64/Xaw3d /usr/X11R6/lib64 /usr/X11R6/lib/Xaw3d /usr/X11R6/lib /usr/x86_64-suse-linux/lib /usr/local/lib64 /usr/local/lib /opt/kde3/lib64 /opt/kde3/lib /opt/gnome/lib64 /opt/gnome/lib /lib64 /lib /usr/lib64 /usr/lib /opt/cluster/intel/cce/9.1.042/lib /opt/cluster/intel/fce/9.1.036/lib /opt/cluster/Pathscale3.0/lib/2.9.99 /opt/cluster/Pathscale3.0/lib/2.9.99/32 /work/licsoft/compilers/pgi/linux86-64/6.2/lib /work/licsoft/compilers/pgi/linux86-64/6.2/libso "
 
 # Fix the shell variable $srcfile for the compiler.
 fix_srcfile_path=""
@@ -7065,7 +7065,7 @@ include_expsyms=""
 
 # ### BEGIN LIBTOOL TAG CONFIG: F77
 
-# Libtool was configured on host NWRW15:
+# Libtool was configured on host deimos101:
 
 # Shell to use when invoking shell scripts.
 SHELL="/bin/sh"
@@ -7087,12 +7087,12 @@ fast_install=yes
 
 # The host system.
 host_alias=
-host=i686-pc-linux-gnu
+host=x86_64-unknown-linux-gnu
 host_os=linux-gnu
 
 # The build system.
 build_alias=
-build=i686-pc-linux-gnu
+build=x86_64-unknown-linux-gnu
 build_os=linux-gnu
 
 # An echo program that does not interpret backslashes.
@@ -7103,7 +7103,7 @@ AR="ar"
 AR_FLAGS="cru"
 
 # A C compiler.
-LTCC="gcc"
+LTCC="/licsoft/libraries/openmpi/1.2.6/64bit/bin/mpicc"
 
 # LTCC compiler flags.
 LTCFLAGS="-g -O2"
@@ -7112,13 +7112,13 @@ LTCFLAGS="-g -O2"
 CC="g77"
 
 # Is the compiler the GNU C compiler?
-with_gcc=yes
+with_gcc=
 
 # An ERE matcher.
 EGREP="grep -E"
 
 # The linker used to build libraries.
-LD="/usr/bin/ld"
+LD="/usr/x86_64-suse-linux/bin/ld -m elf_x86_64"
 
 # Whether we need hard or soft links.
 LN_S="ln -s"
@@ -7346,10 +7346,10 @@ variables_saved_for_relink="PATH LD_LIBRARY_PATH LD_RUN_PATH GCC_EXEC_PREFIX COM
 link_all_deplibs=unknown
 
 # Compile-time system search path for libraries
-sys_lib_search_path_spec=" /u/witkowski/local/lib/i386-redhat-linux/3.4.6/ /u/witkowski/local/lib/ /u/witkowski/local/intel/mkl/10.0.1.014/lib/32/i386-redhat-linux/3.4.6/ /u/witkowski/local/intel/mkl/10.0.1.014/lib/32/ /usr/lib/gcc/i386-redhat-linux/3.4.6/ /usr/lib/gcc/i386-redhat-linux/3.4.6/ /usr/lib/gcc/i386-redhat-linux/3.4.6/../../../../i386-redhat-linux/lib/i386-redhat-linux/3.4.6/ /usr/lib/gcc/i386-redhat-linux/3.4.6/../../../../i386-redhat-linux/lib/ /usr/lib/gcc/i386-redhat-linux/3.4.6/../../../i386-redhat-linux/3.4.6/ /usr/lib/gcc/i386-redhat-linux/3.4.6/../../../ /lib/i386-redhat-linux/3.4.6/ /lib/ /usr/lib/i386-redhat-linux/3.4.6/ /usr/lib/"
+sys_lib_search_path_spec=" /fastfs/witkowsk/local/lib/x86_64-suse-linux/3.3.5/ /fastfs/witkowsk/local/lib/ /usr/lib64/gcc-lib/x86_64-suse-linux/3.3.5/ /usr/lib/gcc/x86_64-suse-linux/3.3.5/ /usr/lib64/gcc-lib/x86_64-suse-linux/3.3.5/../../../../x86_64-suse-linux/lib/x86_64-suse-linux/3.3.5/ /usr/lib64/gcc-lib/x86_64-suse-linux/3.3.5/../../../../x86_64-suse-linux/lib/ /usr/lib64/gcc-lib/x86_64-suse-linux/3.3.5/../../../x86_64-suse-linux/3.3.5/ /usr/lib64/gcc-lib/x86_64-suse-linux/3.3.5/../../../ /lib/x86_64-suse-linux/3.3.5/ /lib/ /usr/lib/x86_64-suse-linux/3.3.5/ /usr/lib/"
 
 # Run-time system search path for libraries
-sys_lib_dlsearch_path_spec="/lib /usr/lib /usr/lib/mysql /usr/lib/octave-2.9.9 /usr/lib/qt-3.3/lib /usr/lib/qt4/lib /usr/lib/xulrunner-1.9.2 "
+sys_lib_dlsearch_path_spec="/lib /usr/lib /usr/X11R6/lib64/Xaw3d /usr/X11R6/lib64 /usr/X11R6/lib/Xaw3d /usr/X11R6/lib /usr/x86_64-suse-linux/lib /usr/local/lib64 /usr/local/lib /opt/kde3/lib64 /opt/kde3/lib /opt/gnome/lib64 /opt/gnome/lib /lib64 /lib /usr/lib64 /usr/lib /opt/cluster/intel/cce/9.1.042/lib /opt/cluster/intel/fce/9.1.036/lib /opt/cluster/Pathscale3.0/lib/2.9.99 /opt/cluster/Pathscale3.0/lib/2.9.99/32 /work/licsoft/compilers/pgi/linux86-64/6.2/lib /work/licsoft/compilers/pgi/linux86-64/6.2/libso "
 
 # Fix the shell variable $srcfile for the compiler.
 fix_srcfile_path=""
diff --git a/AMDiS/other/include/Makefile_AMDiS.mk b/AMDiS/other/include/Makefile_AMDiS.mk
index 71fbb1262b7ff003b7d4bfb7c8114ad911f011c4..b001345d5fa8047fa9825633be72c8ebda197cda 100644
--- a/AMDiS/other/include/Makefile_AMDiS.mk
+++ b/AMDiS/other/include/Makefile_AMDiS.mk
@@ -36,8 +36,7 @@ else
 endif
 
 PARMETIS_LIB = -L$(PARMETIS_DIR) -lparmetis -lmetis
-#ZOLTAN_LIB = -L$(AMDIS_DIR)/lib/zoltan_build/lib -lzoltan
-ZOLTAN_LIB =
+ZOLTAN_LIB = -L$(AMDIS_DIR)/lib/zoltan_build/lib -lzoltan
 
 LIBS += $(AMDIS_LIB) $(PNG_LIB)
 LIBS += -lboost_iostreams -lboost_filesystem -lboost_system -lboost_date_time
diff --git a/AMDiS/src/Mesh.cc b/AMDiS/src/Mesh.cc
index 7a00950233461766c50926fdd3a51adac945e41c..0cb7333953cc3a0683f4d7f232a4b0ddfb259280 100644
--- a/AMDiS/src/Mesh.cc
+++ b/AMDiS/src/Mesh.cc
@@ -1317,9 +1317,6 @@ namespace AMDiS {
     }
     MPI::COMM_WORLD.Bcast(&filenameRandomNumber, 1, MPI_INT, 0);
 
-    MSG("ID = %d\n", filenameRandomNumber);
-    exit(0);
-
     std::stringstream newMacroFilename;
     newMacroFilename << macroFilename << "." << filenameRandomNumber << ".tmp";
 
diff --git a/AMDiS/src/parallel/MeshDistributor.cc b/AMDiS/src/parallel/MeshDistributor.cc
index 37ada7ca57f1aadc185979f48563295041413fff..3b1496c611a5a02eb693dd1528995e307a8477f7 100644
--- a/AMDiS/src/parallel/MeshDistributor.cc
+++ b/AMDiS/src/parallel/MeshDistributor.cc
@@ -107,7 +107,7 @@ namespace AMDiS {
 #ifdef HAVE_ZOLTAN
       partitioner = new ZoltanPartitioner(&mpiComm);
 #else
-      ERROR_EXIT("AMDiS was compiled without Zoltan support. There you cannot make use of it!\n");
+      ERROR_EXIT("AMDiS was compiled without Zoltan support. Therefore you cannot make use of it!\n");
 #endif
     }
 
@@ -160,6 +160,9 @@ namespace AMDiS {
 	macroElIndexTypeMap[(*it)->getIndex()] = (*it)->getElType();
       }
 
+#if (DEBUG != 0)
+    ParallelDebug::writeDebugFile(*this, debugOutputDir + "mpi-dbg", "dat");
+#endif    
       return;
     }
 
diff --git a/AMDiS/src/parallel/ParallelDebug.cc b/AMDiS/src/parallel/ParallelDebug.cc
index dd31b2f10ce490636a4c51227003bb76640f2ff7..904b70872cb5d1a6306ff806957a97d7de298532 100644
--- a/AMDiS/src/parallel/ParallelDebug.cc
+++ b/AMDiS/src/parallel/ParallelDebug.cc
@@ -791,6 +791,8 @@ namespace AMDiS {
 
     std::ofstream file;
     file.open(filename.str().c_str());
+    file << "# First line contains number of DOFs, than each line has the format\n";
+    file << "# Local DOF index     Global DOF index     Is rank DOF     x-coord     y-coord     z-coord\n";
     file << coords.getUsedSize() << "\n";
     DOFIterator<WorldVector<double> > it(&coords, USED_DOFS);
     for (it.reset(); !it.end(); ++it) {
diff --git a/AMDiS/src/parallel/PetscProblemStat.cc b/AMDiS/src/parallel/PetscProblemStat.cc
index 99a310c0b02c4334110632ec05fd35583e76338a..0d8a279f7efdbef440c1875aa491357f50985620 100644
--- a/AMDiS/src/parallel/PetscProblemStat.cc
+++ b/AMDiS/src/parallel/PetscProblemStat.cc
@@ -266,13 +266,16 @@ namespace AMDiS {
 
 
   void PetscProblemStat::setDofVector(Vec& petscVec, DOFVector<double>* vec, 
-				      int dispMult, int dispAdd)
+				      int dispMult, int dispAdd, bool rankOnly)
   {
     FUNCNAME("PetscProblemStat::setDofVector()");
 
     // Traverse all used DOFs in the dof vector.
     DOFVector<double>::Iterator dofIt(vec, USED_DOFS);
     for (dofIt.reset(); !dofIt.end(); ++dofIt) {
+      if (rankOnly && !meshDistributor->getIsRankDof(dofIt.getDOFIndex()))
+	continue;
+
       // Calculate global row index of the dof.
       DegreeOfFreedom globalRowDof = 
 	meshDistributor->mapLocalToGlobal(dofIt.getDOFIndex());
@@ -372,7 +375,7 @@ namespace AMDiS {
 	    rowRank.push_back(meshDistributor->getMpiRank());
 	  } else {
 	    // Find out who is the member of this DOF.
-	    TEST_EXIT_DBG(sendDofToRank.count(*cursor))("Should not happen!\n");
+	    TEST_EXIT_DBG(sendDofToRank.count(*cursor))("DOF %d has no receiver!\n", *cursor);
 	    
 	    rowRank.push_back(sendDofToRank[*cursor]);
 	  }
@@ -393,7 +396,13 @@ namespace AMDiS {
 	    
 	    TEST_EXIT_DBG(localPetscRowIdx >= 0 && localPetscRowIdx < nRankRows)
 	      ("Should not happen! \n Debug info: localRowIdx = %d   globalRowIndx = %d   petscRowIdx = %d   localPetscRowIdx = %d   rStart = %d   nCompontens = %d   nRankRows = %d\n",
-	       *cursor, meshDistributor->mapLocalToGlobal(*cursor), petscRowIdx, localPetscRowIdx, meshDistributor->getRstart(), nComponents, nRankRows);
+	       *cursor, 
+	       meshDistributor->mapLocalToGlobal(*cursor), 
+	       petscRowIdx, 
+	       localPetscRowIdx, 
+	       meshDistributor->getRstart(), 
+	       nComponents, 
+	       nRankRows);
 	    
 	    
 	    // Traverse all non zero entries in this row.
@@ -577,14 +586,16 @@ namespace AMDiS {
   {
     FUNCNAME("PetscProblemStat::solvePetscMatrix()");
 
-#if 0
-    // Set old solution to be initiual guess for petsc solver.
+    // === Set old solution to be initiual guess for PETSc solver. ===
+    
+    VecSet(petscSolVec, 0.0);
+
     for (int i = 0; i < nComponents; i++)
-      setDofVector(petscSolVec, vec->getDOFVector(i), nComponents, i);
+      setDofVector(petscSolVec, vec.getDOFVector(i), nComponents, i, true);
 
     VecAssemblyBegin(petscSolVec);
     VecAssemblyEnd(petscSolVec);
-#endif
+
 
     // === Init PETSc solver. ===
 
@@ -596,7 +607,7 @@ namespace AMDiS {
     delete petscSolver;
 
     // Do not delete the solution vector, use it for the initial guess.
-    //    KSPSetInitialGuessNonzero(solver, PETSC_TRUE);
+    KSPSetInitialGuessNonzero(solver, PETSC_TRUE);
    
     // === Run PETSc. ===
 
diff --git a/AMDiS/src/parallel/PetscProblemStat.h b/AMDiS/src/parallel/PetscProblemStat.h
index 2c38a2b44d0cf7cf74aef95f19b81898d692fe89..d2163c55890fc175ae9b7dc931ee76375f15fe13 100644
--- a/AMDiS/src/parallel/PetscProblemStat.h
+++ b/AMDiS/src/parallel/PetscProblemStat.h
@@ -72,7 +72,7 @@ namespace AMDiS {
 
     /// Takes a dof vector and sends its values to a given petsc vector.
     void setDofVector(Vec& petscVec, DOFVector<double>* vec, 
-		      int disMult = 1, int dispAdd = 0);
+		      int disMult = 1, int dispAdd = 0, bool rankOnly = false);
 
     /// Use PETSc to solve the linear system of equations
     void solvePetscMatrix(SystemVector &vec, AdaptInfo *adaptInfo);