I recently upgraded openmpi and octave and found some minor issues using openmpi_ext.
Compiling stops in MPI_Probe.cc and MPI_Iprobe.cc. Both files contains the function put_MPI_Stat(const MPI_Status&) and in that function there are references to MPI_Status._count and MPI_Status._cancelled. The problem is that those fields are not defined in the MPI specs and were specific to openmpi 1.3.3 implementation. The correct way to get those informations is by calling the corresponding functions (MPI_Get_count and MPI_Test_cancelled). Since I do not use those functions I simply commented those lines and everything worked (clearly not the rigth solution). With octave 3.4.0 if I try to launch a parallel octave work I get the following error that I did not get with older versions: octave: symbol lookup error: /usr/lib/openmpi/openmpi/mca_paffinity_hwloc.so: undefined symbol: mca_base_param_reg_int I have found with google that it is due to an incorrect loading order of the openmpi libraries and can be solved in many ways. The easiest is preloading openmpi.so by using LD_PRELOAD environment variable. Set LD_PRELOAD to the full path of openmpi.so before calling mpirun. Maybe it is worth mentioning in the README. Hope this is useful Andrea Bressan ------------------------------------------------------------------------------ Forrester Wave Report - Recovery time is now measured in hours and minutes not days. Key insights are discussed in the 2010 Forrester Wave Report as part of an in-depth evaluation of disaster recovery service providers. Forrester found the best-in-class provider in terms of services and vision. Read this report now! http://p.sf.net/sfu/ibm-webcastpromo _______________________________________________ Octave-dev mailing list Octave-dev@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/octave-dev
