Having (as a non-expert) to compile new versions of applications (Amber10 primarily), I have taken the opportunity to upgrade Intel compilers to version 10.1 (and MKL libraries) and now I plan also to upgrade openmpi from 1.2.3 to 1.2.6. To this concern please see the answer by Tim Prins (tprins_at_[hidden]) List-Post: users@lists.open-mpi.org Date: 2007-09-26 18:26:25 to my former general question about upgrading:
>If you want to replace your current installation of Open MPI, you have 3 >options: >1. Install the new version exactly as you did the old version, overwriting >>the old version. This should work, but can lead to problems if there are >any >stale files left over. Thus I would recommend not doing this and doing >one of >the following. >2. If you still have the build tree you used to originally install Open >MPI, >go into the build tree and type 'make uninstall'. This should remove >all the >old Open MPI files and allow you to install the new version >normally. >3. If you installed Open MPI into a unique prefix, such as /opt/openmpi, >just >delete the directory and then install the new version of Open MPI. >Personally, I think that one should always install Open MPI into a >directory >where nothing else is installed, as it makes management and >upgrading >significantly easier. I still have /usr/local/openmpi-1.2.3 which is 4 drwxrwxrwx 10 10254 11000 (the last two figures stand for me as user) from which I carried out the compilation. /usr/local/bin contains: mpic++ mpicc mpiCC mpicxx mpiexec mpif77 mpif90 mpirun ompi_info orted orterun are these overwritten during the new compilation, or some deletion is needed? Thanks francesco pietra If I understand, the above procedure (3) applies. Therefore, just delete /open.mpi-1.2.3 and start with decompressing the new release into /usr/local/openmpi-1.2.6 and operate as before. What about libnuma,that I had also insalled apt-get install libnuma-dev, which installed libnuma-dev libnuma.1 This is a self-assembled, NUMA-type four sockets dual-opteron machine with Debian Linux amd64 lenny (the two raid1 HHD just moved to this mainboard from a previous mainbosrd with only two sockets. Everything OK with few adjustments). Thanks francesco pietra I prefere to wait for advice about this post before damaging the system.
